William O. Richards, M.D.
Professor and Chair of Surgery

Program Director General Surgery Residency
Chief Division of Gastrointestinal Surgery                                                      
Surgical Oncology

WRichards100.jpg

University of South Alabama Medical Center
Department of Surgery
2451 Fillingim Street
Mastin Building, Room 719
Mobile, Alabama 36617
(251) 471-7993
brichards@health.southalabama.edu

Professional Profile

Education: 

- B.S., Dickinson College; Carlisle, Pennsylvania
- M.D., University of Maryland School of Medicine; Baltimore, Maryland 
- Intern in Surgery ,University of Florida; Gainesville, Florida
- Residency in General Surgery, University of Maryland Hospital; Baltimore, Maryland
- Chief Residency in General Surgery, University of Maryland Hospital; Baltimore, Maryland
- Fellow, Portal Hypertension and Endoscopy, Emory University Hospital; Atlanta, Georgia

Medial Licensure:
- Alabama Medical License 

Board Certifications: 
- American Board of Surgery

Professional Appointments:

- Program Director, University of South Alabama General Surgery Residency Program, 2011-present
- Adjunct Professor of Surgery, Vanderbilt University Medical Center, 2009-present
- External Associate of the Vanderbilt Institute for Integrative Biosystems Research and Education, 2009-present
- Joint Professor, Department of Physician Assistant Studies, College of Allied Health Professions, University of South Alabama, 2009-present
- Professor (Tenure) and Chair, Department of Surgery, University of South Alabama College of Medicine, 2009-present
- Medical Director of the Vanderbilt Center for Surgical Weight Loss, 2004-2009
- Professor of Surgery (Tenure), Vanderbilt University School of Medicine, 1998-2009
- Associate Professor of Surgery (Tenure), Vanderbilt University School of Medicine, 1991-1998
- Director of Laparoendoscopic General Surgery, Vanderbilt University Medical Center, 1991-2009
- Commander, United States Naval Reserve, 1992-1994
- Lieutenant Commander, United States Naval Reserve, 1987-1992
- Staff Surgeon and Chief of Surgical Endoscopy and Laser Surgery Veterans Administration Medical Center Nashville, Tennessee, 1987-2003
- Assistant Professor of Surgery, Vanderbilt University School of Medicine, 1987- 1991
- Assistant Professor of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, 1985-1986

Honors and Academic Achievements:

- Baltimore Academy of Surgery, Best Resident Paper Award “Creatinine clearance and intraabdominal sepsis” (1985)
- Paper selected for oral presentation, Seventh Annual Vanderbilt University Research Forum. “Inhibition of canine "Fed" motility by selective CCK antagonist L– 364,718” (1989)
- The Grant W. Liddle Research Appreciation Award, for commitment and leadership in promoting an interest in research among young physicians at Vanderbilt University Medical Center (1994)
- John and Julia Sawyers Award for the best paper presented at the H. William Scott Society (2001)
- Named Ingram Professor of Surgical Sciences, Vanderbilt University School of Medicine (2006-2009)
- Nightingale Prize from the Institute of Physics and Engineering in Medicine for the best paper published in the Journal Medical and Biological Engineering and Computing in 2005 for the paper ”Vector Projection in Biomagnetic Fields” (2006)
- Election to Alabama Beta Chapter of Alpha Omega Alpha Honor Medical Society (2001-present)
- Scarlet Sash Teaching Award – Honors Convocation – Selected by the Senior Class, University of South Alabama, College of Medicine (2010, 2011, 2012, 2013)
- Listed among U.S. News and World Report Top Doctors (2011-2014)
- Annual Best Doctors in America Database. Best Doctors, Inc. (2012-2014)

Professional Memberships

- Fellow American College of Surgeons
- American Surgical Association
- Surgical Biology Club
- Southern Surgical Association
- Society of University Surgeons
- The Society for Surgery of the Alimentary Tract
- Society of American Gastrointestinal and Endoscopic Surgeons
- American Society for Metabolic and Bariatric Surgery
- Association of Academic Surgeons
- Association of Program Directors in Surgery
- Southeastern Surgical Association
- Medical Society of Mobile County
- American Medical Association
- Alabama Chapter of the American College of Surgeons
- American Society for Gastrointestinal Endoscopy

Other Professional Honors/Services:

- Chairman, Laser Safety Committee, Nashville VA Medical Center, 1987-2003
- Quality Assurance Committee, Nashville VA Medical Center, 1988-2003
- Tumor Registry Committee, Vanderbilt University Medical Center, 1990-2009
- Vice-Chairman, Surgical Section, Southern Medical Association (SMA), 1992
- Membership Chairman, State of Tennessee, Society of American Gastrointestinal and Endoscopic Surgeons (SAGES), 1992
- Chairman, Surgical Section, Southern Medical Association (SMA), 1993-1997
- Chairman, Poster Session, Society of American Gastrointestinal Endoscopic Surgeons (SAGES), 1994–1995
- Program Director, Update in General Surgery, Southern Medical Association (SMA), 1995
- Chairman, Poster Session, Society of American Gastrointestinal Endoscopic Surgeons (SAGES), 1995-1996
- Performance Based Evaluation Compensation Subcommittee, 1995-2000
- Health 123 Platinum Advocacy Committee, 1995-1997
- Medicine Chairman Search Committee, 1996-1997
- Vanderbilt Medical Group, Space Committee, 1996-2000
- Vanderbilt Product Line Committee, 1996-2000
- Chairman, Laparoscopic Subcommittee, 1996-2000
- Chairman, Blood Utilization Review Committee, 1996-2003
- Member, Vanderbilt Promotions Committee, 2002-2004
- Member, Vanderbilt Tenure Review Committee, 2004-2009
- Chairman of the Flexible Endoscopy Committee, Society of American Gastrointestinal Endoscopic Surgeons (SAGES), 2005-2007
- Board of Governors, Society of American Gastrointestinal and Endoscopic Surgeons (SAGES), 2005-2010
- President, Tennessee Chapter American College of Surgeons, 2006-2007
- President, Tennessee Chapter American Society Metabolic and Bariatric Surgeons, 2006-2009
- Vanderbilt Medical Center East OR Committee, 2007-2009
- Board Member, Tennessee Surgical Quality Consortium, 2008-2009
- Governor, Tennessee American College of Surgeons, 2008-2010
- Committee Member, Video-Based Education for the American College of Surgeons, 2009-2012
- Member, Executive Committee, Alabama Chapter American College of Surgeons, 2009-present
- Member, University of South Alabama Graduate Medical Education Committee (GME), 2009-present
- Chair, Operating Room Committee, University of South Alabama Medical Center, 2009-present
- Member, Board of Directors Health Services Foundation, 2009-present
- Member, Medical Executive Committee, University of South Alabama, 2009-present
- MD, Research Honors Committee, University of South Alabama, 2010
- Councilor, Southeastern Surgical Congress, 2010- present
- Executive Committee Member, Committee on Video-Based Education, American College of Surgeons, 2010-present
- Statewide Trauma System Funding Committee, State of Alabama, 2010-present
- Student Research Committee, University of South Alabama, 2012-present
- Appointed Member, Distinguished Scientists Seminar Program Committee, University of South Alabama, 2012-present
- Chair, Performance Improvement Committee, 2013
- Elected to Faculty Senate University of South Alabama, 2013-present
- Vice-Chair, Committee on Video-Based Education, American College of Surgeons, 2013-present
- Chair, Corrective Action Committee Investigating Quality Concerns in Radiation Oncology, 2014
- Chair, Medical Executive Committee University of South Alabama Medical Center, 2014-present

Patents:

U.S. Patent No. 5,771,894 entitled “Noninvasive identification of intestinal ischemia from measurement of basic electrical rhythm of intestinal smooth muscle electrical activity using a magnetometer.” June 30, 1998.

Publications

Original Investigations:

  1. Richards WO, Scovill W, Shin B, Reed W. Acute renal failure associated with increased intra- abdominal pressure. Ann Surg. 1983;197(2):183-187. PMCID PMC 1353107.
  2. Richards WO, Scovill WA, Shin B. Opsonic fibronectin deficiency in patients with intra- abdominal infection. Surgery. 1983;94(2):210-217.
  3. Kalash SS, Scovill WA, Hill JL, Richards WO. Simplification of cryoprecipitate coagulum choledocholithotomy by deletion of thrombin. Prevention of retained biliary duct stones. Arch Surg. 1984;119(12):1419-1423.
  4. Richards WO, Doolin EJ, Miginsky MP, Moulton AL. Pharmacologic inhibition of scar contracture of intracardiac prosthetic patches. J Surg Res. 1984;37(1):33-42.
  5. Richards WO, Scovill WA, Anstine P. Opsonic fibronectin after operation or trauma: effect of hemodilution and duration of operation. South Med J. 1984;77(10):1243-1247.
  6. Richards WO, Shin B. Massive diuresis after acute renal failure. Crit Care Med. 1984;12(3):202-203.
  7. Dagher FJ, Pais SO, Richards W, Queral LA. Severe unilateral ischemia of the lower extremity caused by ergotamine: treatment with nifedipine. Surgery. 1985;97(3):369-373.
  8. Richards WO, Schnaper LA, Shin B. Creatinine clearance and intra-abdominal infection. Curr Surg. 1985;42(2):111-112.
  9. Richards WO, Keramati B, Scovill WA. Fate of retained foreign bodies in the peritoneal cavity. South Med J. 1986;79(4):496-498.
  10. Warren WD, Millikan WJ, Jr., Henderson JM, Abu-Elmagd KM, Galloway JR, Shires GT, 3rd, Richards WO, Salam AA, Kutner MH. Splenopancreatic disconnection. Improved selectivity of distal splenorenal shunt. Ann Surg. 1986;204(4):346-355. PMCID: PMC1251296
  11. Richards WO, Pearson TC, Henderson JM, Millikan WJ, Jr., Warren WD. Evaluation and treatment of early hemorrhage of the alimentary tract after selective shunt procedures. Surg Gynecol Obstet. 1987;164(6):530-536.
  12. Richards WO, Webb WA, Morris SJ, Davis RC, McDaniel L, Jones L, Littauer S. Patient management after endoscopic removal of the cancerous colon adenoma. Ann Surg. 1987;205(6):665-672. PMCID: PMC1493090
  13. DePuey EG, Richards WO, Millikan WJ, Henderson JM. Scintigraphic detection of pulmonary embolization of esophageal variceal sclerosant. Endoscopy. 1988;20(3):91-94.
  14. Richards WO, Grove-Mahoney D, Williams LF. Hemorrhage from a Dieulafoy type ulcer of the colon: a new cause of lower gastrointestinal bleeding. Am Surg. 1988;54(2):121-124.
  15. Richards WO, Williams LF, Jr. Obstruction of the large and small intestine. Surg Clin North Am. 1988;68(2):355-376.
  16. Ditesheim JA, Richards W, Sharp K. Fatal and disastrous complications following percutaneous endoscopic gastrostomy. Am Surg. 1989;55(2):92-96.
  17. Richards W, Williams LF, Jr. Pseudo-pseudo-obstruction. A clinically relevant concept. Am Surg. 1989;55(1):26-31.
  18. Sharp KW, Ross CB, Halter SA, Morrison JG, Richards WO, Williams LF, Sawyers JL. Pancreatoduodenectomy with pyloric preservation for carcinoma of the pancreas: a cautionary note. Surgery. 1989;105(5):645-653.
  19. Geer RJ, Richards WO, O'Dorisio TM, Woltering EO, Williams S, Rice D, Abumrad NN. Efficacy of octreotide acetate in treatment of severe postgastrectomy dumping syndrome. Ann Surg. 1990;212(6):678-687. PMCID: PMC1358252
  20. Pierce DF, Jr., Richards WO. Therapeutic advances: combining photoradiation and laser therapy. Compr Ther. 1990;16(4):3-8.
  21. Richards W, Parish K, Williams LF, Jr. The usefulness of small-bowel manometry in the diagnosis of gastrointestinal motility disorders. Am Surg. 1990;56(4):238-244.
  22. Richards WO, Geer R, O'Dorisio TM, Robarts T, Parish KL, Rice D, Woltering G, Abumrad NN. Octreotide acetate induces fasting small bowel motility in patients with dumping syndrome. J Surg Res. 1990;49(6):483-487.
  23. Ross CB, Richards WO, Sharp KW, Bertram PD, Schaper PW. Diverticular disease of the jejunum and its complications. Am Surg. 1990;56(5):319-324.
  24. Arnold JH, Alevizatos CA, Cox SE, Richards WO. Propagation of small bowel migrating motor complex activity fronts varies with anastomosis type. J Surg Res. 1991;51(6):506- 511.
  25. Parish KL, Chapman WC, Williams LF, Jr., Richards WO. Are new treatment methods of gallbladder stones the death-knell for gallstone surgery? Am Surg. 1991;57(10):634-641.
  26. Worrell JA, Fleischer AC, Kaufman AJ, Lind CD, Richards WO, Josephs LG, Arnold JH, Dietrich MS, Williams LF. Variation in the size and number of stone fragments after gallbladder lithotripsy. J Ultrasound Med. 1991;10(9):509-512.
  27. Holzman M, Sharp K, Richards W. Hypercarbia during carbon dioxide gas insufflation for therapeutic laparoscopy: a note of caution. Surg Laparosc Endosc. 1992;2(1):11-14.
  28. May DG, Arns PA, Richards WO, Porter J, Ryder D, Fleming CM, Wilkinson GR, Branch RA. The disposition of dapsone in cirrhosis. Clin Pharmacol Ther. 1992;51(6):689-700.
  29. Chong WK, Malisch TA, Mazer MJ, Lind CD, Worrell JA, Richards WO. Transjugular intrahepatic portosystemic shunt: US assessment with maximum flow velocity. Radiology. 1993;189(3):789-793.
  30. Copeland ML, Bruner JP, Richards WO, Sundell HW, Tulipan NB. A model for in utero endoscopic treatment of myelomeningocele. Neurosurgery. 1993;33(3):542-544; discussion 545.
  31. Richards W, Watson D, Lynch G, Reed GW, Olsen D, Spaw A, Holcomb W, Frexes-Steed M, Goldstein R, Sharp K. A review of the results of laparoscopic versus open appendectomy. Surg Gynecol Obstet. 1993;177(5):473-480.
  32. Golzarian J, Scott HW, Jr., Richards WO. Hypermagnesemia-induced paralytic ileus. Dig Dis Sci. 1994;39(5):1138-1142.
  33. Golzarian J, Staton DJ, Wikswo JP, Jr., Friedman RN, Richards WO. Diagnosing intestinal ischemia using a noncontact superconducting quantum interference device. Am J Surg. 1994;167(6):586-592.
  34. Holzman MD, Sharp K, Holcomb GW, Frexes-Steed M, Richards WO. An alternative technique for laparoscopic cholangiography. Surg Endosc. 1994;8(8):927-930.
  35. Lind CD, Malisch TW, Chong WK, Richards WO, Pinson CW, Meranze SG, Mazer M. Incidence of shunt occlusion or stenosis following transjugular intrahepatic portosystemic shunt placement. Gastroenterology. 1994;106(5):1277-1283.
  36. Richards WO, Golzarian J, Wasudev N, Sawyers JL. Reverse phasic contractions are present in antiperistaltic jejunal limbs up to twenty-one years postoperatively. J Am Coll Surg. 1994;178(6):557-563.
  37. Watson DS, Sharp KW, Vasquez JM, Richards WO. Incidence of inguinal hernias diagnosed during laparoscopy. South Med J. 1994;87(1):23-25.
  38. Richards WO, Garrard CL, Allos SH, Bradshaw LA, Staton DJ, Wikswo JP, Jr. Noninvasive diagnosis of mesenteric ischemia using a SQUID magnetometer. Ann Surg. 1995;221(6):696-704; discussion 704-695. PMCID: PMC1234698
  39. Becker YT, Reed G, Lind CD, Richards WO. The role of elective operation in the treatment of portal hypertension. Am Surg. 1996;62(3):171-177.
  40. Holcomb GW, 3rd, Richards WO, Riedel BD. Laparoscopic esophagomyotomy for achalasia in children. J Pediatr Surg.
    1996;31(5):716-718.
  41. Richards WO, Bradshaw LA, Staton DJ, Garrard CL, Liu F, Buchanan S, Wikswo JP, Jr. Magnetoenterography (MENG): noninvasive measurement of bioelectric activity in human small intestine. Dig Dis Sci. 1996;41(12):2293-2301.
  42. Allos SH, Staton DJ, Bradshaw LA, Halter S, Wikswo JP, Jr., Richards WO. Superconducting quantum interference device magnetometer for diagnosis of ischemia caused by mesenteric venous thrombosis. World J Surg. 1997;21(2):173-177; discussion 177-178.
  43. Bradshaw LA, Allos SH, Wikswo JP, Jr., Richards WO. Correlation and comparison of magnetic and electric detection of small intestinal electrical activity. Am J Physiol. 1997;272(5 Pt 1):G1159-1167.
  44. Bruner JP, Tulipan NE, Richards WO. Endoscopic coverage of fetal open myelomeningocele in utero. Am J Obstet Gynecol. 1997;176(1 Pt 1):256-257.
  45. Holzman MD, Sharp KW, Ladipo JK, Eller RF, Holcomb GW, 3rd, Richards WO. Laparoscopic surgical treatment of achalasia. Am J Surg. 1997;173(4):308-311.
  46. Hegde SS, Seidel SA, Ladipo JK, Bradshaw LA, Halter S, Richards WO. Effects of mesenteric ischemia and reperfusion on small bowel electrical activity. J Surg Res. 1998;74(1):86- 95.
  47. Riedel BD, Holcomb GW, 3rd, Richards WO. Laparoscopic esophagomyotomy as treatment for achalasia. J Pediatr Gastroenterol Nutr. 1998;26(3):364.
  48. Wang PC, Sharp KW, Holzman MD, Clements RH, Holcomb GW, Richards WO. The outcome of laparoscopic Heller myotomy without antireflux procedure in patients with achalasia. Am Surg. 1998;64(6):515-520; discussion 521.
  49. Bradshaw LA, Ladipo JK, Staton DJ, Wikswo JP, Jr., Richards WO. The human vector magnetogastrogram and magnetoenterogram. IEEE Trans Biomed Eng. 1999;46(8):959- 970.
  50. Bruner JP, Richards WO, Tulipan NB, Arney TL. Endoscopic coverage of fetal myelomeningocele in utero. Am J Obstet Gynecol. 1999;180(1 Pt 1):153-158.
  51. Garrard CL, Clements RH, Nanney L, Davidson JM, Richards WO. Adhesion formation is reduced after laparoscopic surgery. Surg Endosc. 1999;13(1):10-13.
  52. Richards WO, Clements RH, Wang PC, Lind CD, Mertz H, Ladipo JK, Holzman MD, Sharp KW. Prevalence of gastroesophageal reflux after laparoscopic Heller myotomy. Surg Endosc. 1999;13(10):1010-1014.
  53. Rose DM, Delbeke D, Beauchamp RD, Chapman WC, Sandler MP, Sharp KW, Richards WO, Wright JK, Frexes ME, Pinson CW, Leach SD. 18Fluorodeoxyglucose-positron emission tomography in the management of patients with suspected pancreatic cancer. Ann Surg. 1999;229(5):729-737; discussion 737-728. PMCID: PMC1420818
  54. Seidel SA, Bradshaw LA, Ladipo JK, Wikswo JP, Jr., Richards WO. Noninvasive detection of ischemic bowel. J Vasc Surg. 1999;30(2):309-319.
  55. Seidel SA, Hegde SS, Bradshaw LA, Ladipo JK, Richards WO. Intestinal tachyarrhythmias during small bowel ischemia. Am J Physiol. 1999;277(5 Pt 1):G993-999.
  56. Aliev RR, Richards W, Wikswo JP. A simple nonlinear model of electrical activity in the intestine. J Theor Biol. 2000;204(1):21-28.
  57. Bruner JP, Tulipan NB, Richards WO, Walsh WF, Boehm FH, Vrabcak EK. In utero repair of myelomeningocele: a comparison of endoscopy and hysterotomy. Fetal Diagn Ther. 2000;15(2):83-88.
  58. Clements RH, Reddy S, Holzman MD, Sharp KW, Olsen D, Holcomb GW, Richards WO. Incidence and significance of pneumomediastinum after laparoscopic esophageal surgery. Surg Endosc. 2000;14(6):553-555.
  59. Bradshaw LA, Richards WO, Wikswo JP, Jr. Volume conductor effects on the spatial resolution of magnetic fields and electric potentials from gastrointestinal electrical activity. Med Biol Eng Comput. 2001;39(1):35-43.
  60. Richards WO. Commentary: laparoscopic indirect hernia repair--the ring closure method. J Laparoendosc Adv Surg Tech A. 2001;11(5):303-304.
  61. Richards WO, Scholz S, Khaitan L, Sharp KW, Holzman MD. Initial experience with the stretta procedure for the treatment of gastroesophageal reflux disease. J Laparoendosc Adv Surg Tech A. 2001;11(5):267-273.
  62. Richards WO, Sharp KW, Holzman MD. An antireflux procedure should not routinely be added to a Heller myotomy. J Gastrointest Surg. 2001;5(1):13-16.
  63. Aaronson OS, Tulipan NB, Cywes R, Sundell HW, Davis GH, Bruner JP, Richards WO. Robot-assisted endoscopic intrauterine myelomeningocele repair: a feasibility study. Pediatr Neurosurg. 2002;36(2):85-89.
  64. Khaitan E, Scholz S, Richards WO. Laparoscopic adhesiolysis and placement of Seprafilm: a new technique and novel approach to patients with intractable abdominal pain. J Laparoendosc Adv Surg Tech A. 2002;12(4):241-247.
  65. Khaitan L, Houston H, Sharp K, Holzman M, Richards W. Laparoscopic paraesophageal hernia repair has an acceptable recurrence rate. Am Surg. 2002;68(6):546-551; discussion 551-542.
  66. Sharp KW, Khaitan L, Scholz S, Holzman MD, Richards WO. 100 consecutive minimally invasive Heller myotomies: lessons learned. Ann Surg. 2002;235(5):631-638; discussion 638-639.
  67. Wolfsen HC, Richards WO. The Stretta procedure for the treatment of GERD: a registry of 558 patients. J Laparoendosc Adv Surg Tech A. 2002;12(6):395-402.
  68. Bradshaw LA, Myers A, Wikswo JP, Richards WO. A spatio-temporal dipole simulation of gastrointestinal magnetic fields. IEEE Trans Biomed Eng. 2003;50(7):836-847.
  69. Bradshaw LA, Myers AG, Redmond A, Wikswo JP, Richards WO. Biomagnetic detection of gastric electrical activity in normal and vagotomized rabbits. Neurogastroenterol Motil. 2003;15(5):475-482.
  70. Clements RH, Gonzalez QH, Foster A, Richards WO, McDowell J, Bondora A, Laws HL. Gastrointestinal symptoms are more intense in morbidly obese patients and are improved with laparoscopic Roux-en-Y gastric bypass. Obes Surg. 2003;13(4):610-614.
  71. Cohen JA, Arain A, Harris PA, Byrne DW, Holzman MD, Sharp KW, Richards WO. Surgical trial investigating nocturnal gastroesophageal reflux and sleep (STINGERS). Surg Endosc. 2003;17(3):394-400.
  72. Foster A, Richards WO, McDowell J, Laws HL, Clements RH. Gastrointestinal symptoms are more intense in morbidly obese patients. Surg Endosc. 2003;17(11):1766-1768.
  73. Houston H, Khaitan L, Holzman M, Richards WO. First year experience of patients undergoing the Stretta procedure. Surg Endosc. 2003;17(3):401-404.
  74. Khaitan L, Bhatt P, Richards W, Houston H, Sharp K, Holzman M. Comparison of patient satisfaction after redo and primary fundoplications. Surg Endosc. 2003;17(7):1042-1045.
  75. Khaitan L, Scholz S, Houston HL, Richards WO. Results after laparoscopic lysis of adhesions and placement of seprafilm for intractable abdominal pain. Surg Endosc. 2003;17(2):247- 253.
  76. Ladipo JK, Bradshaw LA, Halter S, Richards WO. Changes in intestinal electrical activity during ischaemia correlate to pathology. West Afr J Med. 2003;22(1):1-4.
  77. Ladipo JK, Seidel SA, Bradshaw LA, Halter S, Wikswo JP, Jr., Richards WO. Histopathologic changes during mesenteric ischaemia and reperfusion. West Afr J Med. 2003;22(1):59-62.
  78. Richards WO, Houston HL, Torquati A, Khaitan L, Holzman MD, Sharp KW. Paradigm shift in the management of gastroesophageal reflux disease. Ann Surg. 2003;237(5):638-647; discussion 648-639. PMCID: PMC1514514
  79. Scholz S, Richards WO. Thoughts on the implantation of prosthetic material at the esophageal hiatus in children. Pediatr Surg Int. 2003;19(1-2):131-132.
  80. Buist ML, Cheng LK, Yassi R, Bradshaw LA, Richards WO, Pullan AJ. An anatomical model of the gastric system for producing bioelectric and biomagnetic fields. Physiol Meas. 2004;25(4):849-861.
  81. Dassinger MS, Torquati A, Houston HL, Holzman MD, Sharp KW, Richards WO. Laparoscopic fundoplication: 5-year follow-up. Am Surg. 2004;70(8):691-694; discussion 694-695.
  82. Lutfi RE, Torquati A, Richards WO. Endoscopic treatment modalities for gastroesophageal reflux disease. Surg Endosc. 2004;18(9):1299-1315.
  83. Lutfi RE, Torquati A, Richards WO. The endoscopic radiofrequency approach to management of GERD. Curr Opin Otolaryngol Head Neck Surg. 2004;12(3):191-196.
  84. Richards WO. Gastroesophageal reflux disease and the truth about endoluminal therapy. J Gastrointest Surg. 2004;8(8):930-931.
  85. Richards WO, Torquati A, Holzman MD, Khaitan L, Byrne D, Lutfi R, Sharp KW. Heller myotomy versus Heller myotomy with Dor fundoplication for achalasia: a prospective randomized double-blind clinical trial. Ann Surg. 2004;240(3):405-412; discussion 412- 405. PMCID: PMC1356431
  86. Torquati A, Houston HL, Kaiser J, Holzman MD, Richards WO. Long-term follow-up study of the Stretta procedure for the treatment of gastroesophageal reflux disease. Surg Endosc. 2004;18(10):1475-1479.
  87. Torquati A, O'Rear L, Longobardi L, Spagnoli A, Richards WO, Daniel Beauchamp R. RUNX3 inhibits cell proliferation and induces apoptosis by reinstating transforming growth factor beta responsiveness in esophageal adenocarcinoma cells. Surgery. 2004;136(2):310-316.
  88. Austin MT, Feurer ID, Holzman MD, Richards WO, Pinson CW, Herline AJ. The impact of a laparoscopic colorectal surgeon on the laparoscopic colectomy experience of a single academic center. Surg Endosc. 2005;19(3):311-315.
  89. Berch BR, Nava RD, Torquati A, Sharp KW, Richards WO. Myotomy: follow-up study of 50 patients. J Gastrointest Surg. 2005;9(9):1326-1331.
  90. Bradshaw LA, Myers A, Richards WO, Drake W, Wikswo JP. Vector projection of biomagnetic fields. Med Biol Eng Comput. 2005;43(1):85-93.
  91. Bradshaw LA, Roy OP, O'Mahony GP, Myers AG, McDowell JG, Wikswo JP, Richards WO. Biomagnetic detection of injury currents in rabbit ischemic intestine. Dig Dis Sci. 2005;50(9):1561-1568.
  92. Lutfi RE, Torquati A, Kaiser J, Holzman M, Richards WO. Three year's experience with the Stretta procedure: did it really make a difference? Surg Endosc. 2005;19(2):289-295.
  93. Poulose BK, Griffin MR, Moore DE, Zhu Y, Smalley W, Richards WO, Wright JK, Melvin W, Holzman MD. Risk factors for post-operative mortality in bariatric surgery. J Surg Res. 2005;127(1):1-7.
  94. Poulose BK, Griffin MR, Zhu Y, Smalley W, Richards WO, Wright JK, Melvin W, Holzman MD. National analysis of adverse patient safety for events in bariatric surgery. Am Surg. 2005;71(5):406-413.
  95. Poulose BK, Holzman MD, Zhu Y, Smalley W, Richards WO, Wright JK, Melvin W, Griffin MR. National variations in morbid obesity and bariatric surgery use. J Am Coll Surg. 2005;201(1):77-84.
  96. Richards WO, Rattner DW. Endoluminal and transluminal surgery: no longer if, but when. Surg Endosc. 2005;19(4):461-463.
  97. Richards WO, Torquati A, Lutfi R. The current treatment of achalasia. Adv Surg. 2005;39:285- 314.
  98. Torquati A, Lutfi R, Abumrad N, Richards WO. Is Roux-en-Y gastric bypass surgery the most effective treatment for type 2 diabetes mellitus in morbidly obese patients? J Gastrointest Surg. 2005;9(8):1112-1116; discussion 1117-1118.
  99. Berch BR, Torquati A, Lutfi RE, Richards WO. Experience with the optical access trocar for safe and rapid entry in the performance of laparoscopic gastric bypass. Surg Endosc. 2006;20(8):1238-1241.
  100. Bradshaw LA, Irimia A, Sims JA, Gallucci MR, Palmer RL, Richards WO. Biomagnetic characterization of spatiotemporal parameters of the gastric slow wave. Neurogastroenterol Motil. 2006;18(8):619-631.
  101. Eckhauser A, Torquati A, Youssef Y, Kaiser JL, Richards WO. Internal hernia: postoperative complication of roux-en-Y gastric bypass surgery. Am Surg. 2006;72(7):581-584; discussion 584-585.
  102. Irimia A, Gallucci MR, Richards WO, Bradshaw LA. Separation of gastric electrical control activity from simultaneous MGG/EGG recordings using independent component analysis. Conf Proc IEEE Eng Med Biol Soc. 2006;1:3110-3113.
  103. Irimia A, Richards WO, Bradshaw LA. Magnetogastrographic detection of gastric electrical response activity in humans. Phys Med Biol. 2006;51(5):1347-1360.
  104. Lutfi R, Torquati A, Sekhar N, Richards WO. Predictors of success after laparoscopic gastric bypass: a multivariate analysis of socioeconomic factors. Surg Endosc. 2006;20(6):864- 867.
  105. Rothstein R, Filipi C, Caca K, Pruitt R, Mergener K, Torquati A, Haber G, Chen Y, Chang K, Wong D, Deviere J, Pleskow D, Lightdale C, Ades A, Kozarek R, Richards W, Lembo A. Endoscopic full-thickness plication for the treatment of gastroesophageal reflux disease: A randomized, sham-controlled trial. Gastroenterology. 2006;131(3):704-712.
  106. Sekhar N, Torquati A, Lutfi R, Richards WO. Endoscopic evaluation of the gastrojejunostomy in laparoscopic gastric bypass. A series of 340 patients without postoperative leak. Surg Endosc. 2006;20(2):199-201.
  107. Silver HJ, Torquati A, Jensen GL, Richards WO. Weight, dietary and physical activity behaviors two years after gastric bypass. Obes Surg. 2006;16(7):859-864.
  108. Torquati A, Lutfi R, Khaitan L, Sharp KW, Richards WO. Heller myotomy vs Heller myotomy plus Dor fundoplication: cost-utility analysis of a randomized trial. Surg Endosc. 2006;20(3):389-393.
  109. Torquati A, Richards WO, Holzman MD, Sharp KW. Laparoscopic myotomy for achalasia: predictors of successful outcome after 200 cases. Ann Surg. 2006;243(5):587-591; discussion 591-583. PMCID: PMC 1570561
  110. Youssef YK, Shekar N, Lutfi R, Richards WO, Torquati A. Long-term evaluation of patient satisfaction and reflux symptoms after laparoscopic fundoplication with Collis gastroplasty. Surg Endosc. 2006;20(11):1702-1705.
  111. Bradshaw LA, Sims JA, Richards WO. Noninvasive assessment of the effects of glucagon on the gastric slow wave. Am J Physiol Gastrointest Liver Physiol. 2007;293(5):G1029- 1038. PMCID: PMC2726773
  112. Cordova-Fraga T, Gallucci M, Bradshaw A, Berch B, Richards WO. A biomagnetic assessment of colonic electrical activity in pigs. Physiol Meas. 2007;28(1):41-48.
  113. Morgenthal CB, Richards WO, Dunkin BJ, Forde KA, Vitale G, Lin E. The role of the surgeon in the evolution of flexible endoscopy. Surg Endosc. 2007;21(6):838-853.
  114. O'Mahony GD, Gallucci MR, Cordova-Fraga T, Berch B, Richards WO, Bradshaw LA. Biomagnetic investigation of injury currents in rabbit intestinal smooth muscle during mesenteric ischemia and reperfusion. Dig Dis Sci. 2007;52(1):292-301.
  115. Richards WO. Is the Stretta procedure safe and effective for the long-term control of symptoms in patients with refractory GERD Nat Clin Pract Gastroenterol Hepatol. 2007;4(12):654-655.
  116. Sekhar N, Torquati A, Youssef Y, Wright JK, Richards WO. A comparison of 399 open and 568 laparoscopic gastric bypasses performed during a 4-year period. Surg Endosc. 2007;21(4):665-668.
  117. Torquati A, Lutfi RE, Richards WO. Predictors of early quality-of-life improvement after laparoscopic gastric bypass surgery. Am J Surg. 2007;193(4):471-475.
  118. Torquati A, Richards WO. Endoluminal GERD treatments: critical appraisal of current literature with evidence-based medicine instruments. Surg Endosc. 2007;21(5):697-706.
  119. Torquati A, Wright K, Melvin W, Richards W. Effect of gastric bypass operation on Framingham and actual risk of cardiovascular events in class II to III obesity. J Am Coll Surg. 2007;204(5):776-782; discussion 782-773.
  120. Youssef Y, Richards WO, Sekhar N, Kaiser J, Spagnoli A, Abumrad N, Torquati A. Risk of secondary hyperparathyroidism after laparoscopic gastric bypass surgery in obese women. Surg Endosc. 2007;21(8):1393-1396.
  121. Youssef Y, Richards WO, Sharp K, Holzman M, Sekhar N, Kaiser J, Torquati A. Relief of dysphagia after laparoscopic Heller myotomy improves long-term quality of life. J Gastrointest Surg. 2007;11(3):309-313.
  122. Erickson J, Obioha C, Goodale A, Bradshaw A, Richards W. Noninvasive detection of small bowel electrical activity from SQUID magnetometer measurements using SOBI. Conf Proc IEEE Eng Med Biol Soc. 2008;2008:1871-1874.
  123. Bradshaw LA, Cheng LK, Richards WO, Pullan AJ. Surface current density mapping for identification of gastric slow wave propagation. IEEE Trans Biomed Eng. 2009;56(8):2131-2139. PMCID: PMC2722927
  124. Bradshaw LA, Irimia A, Sims JA, Richards WO. Biomagnetic signatures of uncoupled gastric musculature. Neurogastroenterol Motil. 2009;21(7):778-e750. PMCID: PMC2855967
  125. Brethauer SA, Pryor AD, Chand B, Schauer P, Rosenthal R, Richards W, Bessler M. Endoluminal procedures for bariatric patients: expectations among bariatric surgeons. Surg Obes Relat Dis. 2009;5(2):231-236.
  126. Erickson JC, Obioha C, Goodale A, Bradshaw LA, Richards WO. Detection of small bowel slow-wave frequencies from noninvasive biomagnetic measurements. IEEE Trans Biomed Eng. 2009;56(9):2181-2189. PMCID: PMC2760223
  127. Fowler SM, Kon V, Ma L, Richards WO, Fogo AB, Hunley TE. Obesity-related focal and segmental glomerulosclerosis: normalization of proteinuria in an adolescent after bariatric surgery. Pediatr Nephrol. 2009;24(4):851-855.
  128. Irimia A, Richards WO, Bradshaw LA. Comparison of conventional filtering and independent component analysis for artifact reduction in simultaneous gastric EMG and magnetogastrography from porcines. IEEE Trans Biomed Eng. 2009;56(11):2611-2618. PMCID: PMC 2855971
  129. Carpenter RO, Williams DB, Richards WO. Laparoscopic adjustable gastric banding after previous Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2010;6(1):93-95.
  130. Erickson JC, O'Grady G, Du P, Obioha C, Qiao W, Richards WO, Bradshaw LA, Pullan AJ, Cheng LK. Falling-edge, variable threshold (FEVT) method for the automated detection of gastric slow wave events in high-resolution serosal electrode recordings. Ann Biomed Eng. 2010;38(4):1511-1529.
  131. Fabbrini E, Tamboli RA, Magkos F, Marks PA, Eckhauser AW, Richards WO, Klein S, Abumrad NN. Surgical Removal of Omental Fat Does Not Improve Insulin Sensitivity and Cardiovascular Risk Factors in Obese Adults. Gastroenterology. 2010; 139(2):448- 455. PMCID: PMC2910849
  132. Kim S, Richards WO. Long-term follow-up of the metabolic profiles in obese patients with type 2 diabetes mellitus after Roux-en-Y gastric bypass. Ann Surg. 2010;251(6):1049- 1055.
  133. Howard D, DeShazo ME, Richards WO, Rodning CB. Retrograde jejunojejunal intussusception status following Roux-en-Y gastrojejunostomy. International Surgery. 2010;95:177-182.
  134. Gandy RE, Richards WO, Rodning CB. Documentation of student-resident interaction during a surgical clerkship. J Surgical Education 2010. September/October issue, volume 67(5).
  135. Taylor D, Mulekar MS, Luterman A, Meyer FN, Richards WO, Rodning CB. Spirituality within the Patient-Surgeon Relationship. J Surgical Education 2010. January/February 2011 issue, volume 68(1).
  136. Erickson J, O’Grady G, Du P, Obioha C, Qiao W, Richards W. Falling edge variable threshold (FEVT) method for the automated detection of gastric slow wave events in high resolution serosal electrode recordings. Ann Biomed Eng vol 38 No. 4 pp 11511-1529, 2010. PMCID: PMC2855965
  137. Gandy RE, Richards WO, Rodning CB. Documentation of student-resident interaction during a surgical clerkship. J Surg Edu. 67(3): 187, 2010.
  138. Schneider A, Rawat D, Weinstein S,Gupte S, Richards WO: Laparoscopic Roux-en-Y Gastric Bypass Reduces Elevated Glucose-6-Phosphate Dehydrogenase Activity in Morbidly Obese Diabetic Patients. Surg Endosc 26: no. 3: pp823-830, 2012.
  139. Paixao FC, Quini CC, Bradshaw LA, Richards WO, Baffa O, Miranda JRA. Esophageal transit time assessed by magnetic methods: An in vitro feasibility study of the novel alternating current biosusceptomety with 3-axis magnetorresistor. M. Long (Ed.): World Congress on Medical Physics and Biomedical Engineering, IFMBE Proceedings 39, pp. 1389- 1392, 2012. www.springerlink.com.
  140. Somarajan S, Muszynski ND, Obioha C, Richards WO, Bradshaw LA. Biomagnetic and bioelectric detection of gastric slow wave activity in normal human subjects--a correlation study. Physiol. Meas. 331171-1179 2012 stacks.iop.org/PM/33/117.
  141. Obioha C, Erickson J, Suseela J, Hajri T, Chung E, Richards WO, Bradshaw LA. Effect of Body Mass Index on the sensitivity of Magnetogastrogram and Electrogastrogram. Journal of Gastroenterology and Hepatology Res of GHR. 2013 Apr; 2(4): 403-408.
  142. Somarajan S, Cassilly S, Obioha C, Bradshaw LA, Richards WO. Noninvasive biomagnetic detection of isolated ischemic bowel segments. IEEE Trans Biomed Eng. 2013;60(6):1677-1684.
  143. Taylor D, Luterman A, Richards WO, Gonzalez RP, Rodning CB. Application of the core competencies after unexpected patient death: consolation of the grieved. J Surg Educ. 2013;70(1):37-47.
  144. Simmons JD, Lee YL, Mulekar S, Kuck JL, Brevard SB, Gonzalez RP, Gillespie MN, Richards WO. Elevated levels of plasma mitochondrial DNA DAMPs are linked to clinical outcome in severely injured human subjects. Ann Surg. 2013;258(4):591-596; discussion 596-598.
  145. Somarajan S, Cassilly S, Obioha C, Richards WO, Bradshaw LA. Effects of body mass index on gastric slow wave: a magnetogastrographic study. Physiol Meas. 2014;35(2):205-215.

Video Presentations:

  1. Sharp KS, Richards WO, Holcomb GW III. Laparoscopic Heller myotomy for achalasia. Presented at the American College of Surgeons, October 1995.
  2. Richards WO, Wang P, Holzman M, Sharp K. Laparoscopic repair of rectal prolapse: Ripstein Procedure. Presented at Southeastern Surgical Congress, February 1998.
  3. Richards, WO, Wolff, R, Sharp, KW, Holzman, MD, Laparoscopic Heller Myotomy without Antireflux Procedure. Video presentation at the American College of Surgeons, October14, 1999.
  4. Eckhauser A, Richards WO. Laparoscopic Duodenojejunostomy for Benign Duodenal Obstruction Video presentation at the Southeastern Surgical Congress, February 2007.
  5. Ballard B, Richards WO, Revision of Strictured Gastric Sleeve to Subtotal Gastrectomy. Video presentation at Southeastern Surgical Congress, Chattanooga, TN, February 14, 2011.
  6. Koonce CJ;Cole PA; Richards WO; Rodning CB,Cervical Pharyngostomy Video presentation at Southeastern Surgical Congress, Chattanooga, TN, February 13, 2012.
  7. Blair B; Richards WO. Laparoscopic Collis-Nissen Fundoplication. Video presentation at Southern Surgical Congress, Jacksonville, FL, February 11, 2013.

Books and Book Chapters:

  1. Richards WO, Williams LF Jr. Obstruction of the large and small intestine. In: Sawyers JL, Williams LF Jr (ed). The Acute Abdomen. The Surgical Clinics of North America, Vol 68. Philadelphia: WB Saunders, 1988:355–376.
  2. Richards WO. Intestinal pseudo–obstruction (Dyskinesia). In: Scott HW Jr. and Sawyers JL. Surgery of the Stomach, Duodenum and Small Intestine, Second Edition. 1991:872–882.
  3. Abumrad NN, Sawyers JL, Richards WO. Dumping syndrome and other early postgastrectomy sequelae. In: Scott HW Jr. and Sawyers JL. Surgery of the Stomach, Duodenum and Small Intestine, Second Edition. 1991:620–631.
  4. Golzarian J, Richards WO. Choice of animal species for experimental surgery. In: Gregerson H. Experimental Surgery, Gastroenterology. Harwood Academic Publishers, 1994.
  5. Richards WO, Sawyers JL. Chronic pancreatitis. In: Rakel RE. Conn's Current Therapy, 1994:497– 501.
  6. Richards WO and Key SP. Surgical approaches. In: (ed) Winston Parris, M.D. Cancer Pain Management: Principles and Practice. Butterworth-Heinemann Publishers, 1997.
  7. Richards WO. Gastrointestinal bleeding. In: (eds) Polk, Gardner, Stone Basic Surgery, Edition 5. Quality Medical Publishing, Inc., St. Louis, MO, 1995.
  8. Sawyers, JL and Richards WO. Selective vagotomy and pyloroplasty. In (ed) Baker, R and Fischer JE, Mastery of Surgery Fourth edition, Lippincott Williams and Wilkins, Philadelphia, Pa., 2001.
  9. Draper, K, Richards, WO. Laparoscopic Cholangiography in Therapeutic Laparoscopy for Digestive Diseases. Ed MacFadyen 2003.
  10. Richards WO, Torquati A, Lutfi RE. Current Treatment of Achalasia in Advances in Surgery Ed Cameron JC. Vol 39: Chapter 14, 2005.
  11. Lutfi RE , Richards WO. Chapter 27 Laparoscopic Adhesiolysis. in Advanced Therapy in Minimally Invasive Surgery Ed. Talamini publisher BC Decker Inc Hamilton, Ontario, 2005.
  12. Torquati A, Richards WO. Endolumenal Treatments of GERD” in Mastery of Endoscopic and Laparoscopic Surgery Ed Soper N, and Swanstrom L. 2007.
  13. Richards WO, Schirmer BD Morbid Obesity in Sabiston Textbook of Surgery 18th edition, Ed Towsend, Beauchamp, Evers and Mattox. Saunders and Elsevier Publishers, 2008.
  14. Torquati A, Richards WO. Endoluminal Treatments of GERD” in Mastery of Endoscopic and Laparoscopic Surgery Third edition, Ed Soper N, Swanstrom L., Eubanks, WS, Lippincott, Williams and Wilkins publishers 2009.
  15. Richards WO; Morbid Obesity in Sabiston Textbook of Surgery 19th edition,Chap 15 pp. 358-388; Ed Towsend, Beauchamp, Evers and Mattox. Saunders and Elsevier Publishers, Philadelphia PA 2012.
  16. Howard D, Richards WO; Endoluminal Therapy for Gastroesophageal Reflux Disease in Evidence-based Approach to MIS, Chap 5 pp. 30-36; edited by Kenric Murayama, MD, Bipan Chand, MD, and associate editors, Dean Mikami MD, Alexander Nagle MD, Shanu Kothari MD. Cine-Med publishers, Woodbury, CT 2012.
  17. Rostas JW, Mai TT, Richards WO. Gastric Motility Physiology and Surgical Intervention. Surgical Clinics of North America Vol. 91(No5), 983-999, October 2011.
  18. Schwaitzberg SD, Sawyers JL, Richards WO. Vagotomy and Pyloroplasty. Chapter 86, pg 1012 on line . Mastery of Surgery 6th edition, Lippincott

 Abstracts:

  1. Richards WO, Pearson TC, DePuey EG, Millikan WJ, Henderson JM, Warren WD. Pulmonary embolization of sclerosant after intravariceal sclerotherapy. Hepatology 5:976, 1985.
  2. Richards WO, Williams LF. Propagation of the migrating motor complex occurs after ablation of the submucosal or myenteric nerve plexus. Gastroenterology. 95:886, 1988.
  3. Chapman WC, Ross CB, Richards WO, Demetriou AA, Williams LF. The polyamine spermine causes decreased gallbladder contractility in vitro. Gastroenterology. 95:859, 1988.
  4. Concepcion RS, Koch MD, McDougal WS, Richards WO. Detubularized intestinal segments in urinary tract reconstruction : Why do they work J. Urol 139:310A, 1988.
  5. Concepcion RS, Koch MD, Hill DE, Richards WO, Gishan FK, McDougal WS. The long term effects of urinary storage on the canine intestine in lower urinary tract reconstruction. J. Urol 141:485A, 1989.
  6. Richards WO, Millikan WJ, Henderson JM, Galloway JR, Warren WD. Urgent esophagogastroscopy in 100 consecutive portal hypertensive patients with hemorrhage. Society of American Gastrointestinal Endoscopic Surgeons, April 24, 1987.
  7. Richards WO, Williams LF. Myoelectrical activity of the upper gastrointestinal tract. H. William Scott, Jr. Society, Nashville, Tennessee, April 24, 1987.
  8. Concepcion R, Koch M, Richards WO. Detubularized intestinal segments in lower urinary tract reconstruction: why do they work? American Urological Association, Boston, Massachusetts, June 6, 1988.
  9. Alevizatos C, Richards WO, Chapman W, Parrish K, Elks S, Williams LF. Propagation of phase III migrating motor complex activity fronts across small intestinal anastomoses. Poster at 7th Annual Vanderbilt Research Forum, 1990.
  10. Arnold JH, Joseph LG, Chapman WC, Richards WO, Lind CD, Worrell JA, Stephens WH, Lorenz CH, Price RR, Williams LF. The principles of biliary extracorporeal lithotripsy. Advances in Biliary Shock Wave Lithotripsy New Orleans, LA March 31, 1990.
  11. Richards WO. Evaluation and treatment of the patient with postgastrectomy syndrome. University of Maryland Surgical Society Baltimore, Maryland May 3, 1990.
  12. Arnold JH, Josephs LG, Chapman WC, Richards WO, Lind C, Worrell J, Williams LF. Will Biliary lithotripsy survive Presented Southern Medical Assoc. October 1990.
  13. Arns PA, Richards WO, White L, Ryder D, Wilkinson GR, Branch RA. Stereoselective mephenytoin disposition in patients before and after surgical portasystemic shunt. Presented American Association for the Study of Liver Diseases, 1990.
  14. Arns PA, Richards WO, White L, Ryder D, Wilkinson GR, Branch RA. Assessment of hepatic dysfunction and portasystemic shunt using the stereoselectivity of mephenytoin disposition. Presented American Association for the Study of Liver Diseases, 1990.
  15. Arnold JH, Alevizatos CA, Cox SE, Richards WO. Propagation of small bowel phase III migrating motor complex activity fronts varies with anastomosis type. Poster presentation Assoc. Academic Surgery,Houston, TX. November 1990.
  16. Josephs LG, Chapman WC, Williams LF, Lind CD, Richards WO, Worrell JA. Lessons learned from a trial of biliary lithotripsy treatment for gallbladder gallstones. Gastro 100 (no. 5) A308, 1991.
  17. Rose DM, Soteriou MC, Kuhlman R, Richards WO. Selective cholecystokinin antagonist L365,260 prevents initiation of "fed" motility in canine small intestine. Gastro 100 (no. 5) A839, 1991.
  18. Richards WO, Sharp KW. Evaluation and treatment of the patient with chronic abdominal pain. Presented Southern Medical Association, November 1991.
  19. Golzarian J, Kuhlman R, Richards WO. The basic electrical rhythm (BER) of proximal small intestine is more phase locked or coherent than distal intestine. Gastroenterology, 102:A451, April 1992.
  20. Golzarian J, Richards WO. Comparison of two methods for analyzing small intestine motor patterns. Gastroenterology, 102:A451, April 1992.
  21. Soteriou M, Golzarian J, Richards WO. Duration and number of electrical response activity is correlated to the duration and amplitude of guinea pig small bowel contractions in vitro. Gastroenterology 102:A518, April 1992.
  22. Lind CD, Chong WK, Pinson CW, Richards WO, Mazer M. Transjugular intrahepatic portosystemic shunt (TIPS). Placement for the treatment of portal hypertension and variceal ?hemorrhage. Gastroenterology 102:A843, April 1992.
  23. Richards WO. Laparoscopic marcy type repair of the indirect hernia. Presented at the Third World Congress in Bordeaux, France, June 1992.
  24. Golzarian J, Richards WO. Frequency, amplitude and propagation velocity of spiking activity is decreased in ischemic guinea pig small intestine. Presented as a poster, Sixteenth Annual AVAS, Albuquerque, New Mexico, 1992.
  25. Golzarian J, Staton D, Wikswo JP Jr., Friedman RN, and Richards WO. First biomagnetic measurements of intestinal basic electrical rhythms (BER) in vivo using a high–resolution magnetometer. Gastroenterology 103:1385, October, 1992.
  26. Richards WO, Golzarian J, Wasudev N, Sawyers JL. Reverse peristalsis is present in antiperistaltic jejunal limbs up to twenty–one years after surgery. Presented as a poster, Society for Surgery of the Alimentary Tract, 1992.
  27. Lynch GB, Rice D, Abumrad N, Richards WO. Laparoscopic vs. open cholecystectomy – The effect of stress hormones on adynamic ileus. Presented at the Society of University Surgeons Resident Section, April 1993.
  28. Golzarian J, Staton D, Wikswo JP, Friedman RN, Richards WO. Diagnosis of intestinal ischemia (Int Isch) using a non–contact SuperConducting Quantum Interference Device (SQUID). Presented at the Society of University Surgeons Resident Section, February 1993.
  29. Lind CD, Malisch TW, Chong WK, Richards WO, Pinson CW, Meranze S, Mazer M. Incidence of shunt occlusion or stenosis with transjugular intrahepatic portosystemic shunts (TIPS). Gastroenterology 104(4):A941, April 1993.
  30. Richards WO, Golzarian J, Staton D, Friedman RN, Wikswo JP Jr. SQUID. A form of Sushi or a new non–invasive diagnostic device for the gut. H. William Scott Society Annual Meeting, April 1993.
  31. Holzman M, Sharp K, Holcomb GW III, Frexes–Steed M, Chapman W, Richards WO. A Novel ?and easy method for cholangiography. Presented at SAGES, April 1993.
  32. Lynch GB, Rice D, Abumrad N, Richards WO. Laparoscopic verses open cholecystectomy: The effect of stress hormones on adynamic ileus. Presented at Association for VA Surgeons, 1993.
  33. Golzarian J, Staton D, Wikswo JP Jr, Friedman RN, Richards WO. Non–contact measurement of biomagnetic signals in ischemic small intestine. Presented as a poster, Society for Surgery of the Alimentary Tract, 1993.
  34. Garrard CL, Wikswo JP Jr., Staton D, Golzarian J, Gallen C, Richards WO. Noninvasive measurement of small bowel electrical activity. Gastroenterology 106(4):A502.
  35. Garrard CL, Nanney L, Richards WO. Adhesion formation is reduced after surgery. Best paper presentation at SAGES, April 1994. Poster presentation at The World Congresses of ?Gastroenterology, October 1994.
  36. Drougas JG, Wright JK Jr., Richards WO, Chapman WC. Laparoscopy in the management of suspected peritoneal tuberculosis. Presentation at Southern Medical Association, November 1994.
  37. Bradshaw LA, Garrard CL, Wikswo JP, and Richards WO. Transabdominal magnetic recording of small bowel ischemia in anesthetized rabbits. Gastro 107(4):1234, 1994.
  38. Garrard CL, Wikswo JP, Staton D, Golzarian J, Gallen C, Richards WO. Measurement of the human gastric slow wave activity with a SQUID magnetometer. Presented VA Surgeons, Reno Nevada, May 1994.
  39. Geevarghese S, Garrard CL, Richards WO. Electrical activity of the intestine during mesenteric venous occlusion. Presented, Society of University Surgeons Resident Section. February 1995.
  40. Becker YT and Richards WO. The role of elective operation in the treatment of portal hypertension. Presented, Southeastern Surgical Congress, February 1995.
  41. Richards WO: Update on surgical and radiologic procedures for variceal bleeding. Postgraduate course Southeastern Surgical Congress. New Orleans, LA. February 5, 1995.
  42. Richards WO: Laparoscopic Heller myotomy. Postgraduate course Southeastern Surgical Congress. New Orleans, LA. February 5, 1995.
  43. Holzman MD, Sharp KW, Richards WO. Thoracoscopic vs. laparoscopic treatment of achalasia. Gastro 108(4):A1223, 1995.
  44. Allos SH, Bradshaw A, Wikswo JP Jr., Richards WO. Noninvasive measurement of large bowel electrical activity. Gastro 108(4):A562, 1995.
  45. Allos SH, Sorrell M, Slater S, Staton D, Wikswo JP Jr., Richards WO. SQUID Magnetometer diagnosis of mesenteric vein thrombosis. Gastro 108(4):A269, 1995.
  46. Staton DJ, Bradshaw A, Wikswo JP Jr., Richards WO. Noninvasive magnetic field recordings of gastric BER conduction velocity. Gastro 108(4):A693, 1995.
  47. Lind CD, Chong WK, Richards WO, Pinson CW, Meranze SG, and Mazer MJ. Predictors of shunt stenosis following transjugular intrahepatic portosystemic shunt (TIPS) placement. Gastro 108(4):A1110, 1995.
  48. Bradshaw LA, Wikswo JP Jr., Richards WO. A comparison of the effects of abdominal layers on external electric potentials and magnetic fields from gastrointestinal sources. Dig Dis and Sci 41(9):1984.
  49. Bradshaw LA, Wikswo JP Jr., Richards WO. A 2-D spatio-temporal model of external magnetic fields from gastrointestinal electrical activity.Dig Dis and Sci 41(9):1984.
  50. Bradshaw LA, Allos SH, Wikswo JP Jr., Richards WO. The effect of abdominal layers on electric and magnetic fields from gastrointestinal electrical activity. Gastro:110, No.4:A640, 1996.
  51. Bradshaw LA, Wikswo JP Jr., Richards WO. The effect of abdominal layers on electric and magnetic fields from gastrointestinal electrical activity: Computer simulations. Gastro:110, No.4:A639, 1996.
  52. Staton DJ, Allos SH, Ladipo JK, Wikswo JP Jr., Richards WO. First noninvasive measurement of human gastrointestinal electrical sources using a Vector SQUID magnetometer. Gastro:110, No.4:A764, 1996.
  53. Eller RF, Olsen D, Sharp KS, Richards WO. Laparoscopic Nissen fundoplication - Is division of the short gastric vessels necessary? Presented SAGES, 1997.
  54. Wang PC, Holzman MD, Richards WO. Laparoscopic treatment of patients with gastroesophageal reflux and gastroparesis. Presented as poster presentation at SAGES, March 1997.
  55. Ladipo JK, Halter S, Hegde SS, Bradshaw LA, Richards WO. Histopathologic correlation of intestinal basic electrical rhythm activity during ischemia. Poster presentation,VA Surgeons, May 1997.
  56. Hegde SS, Bradshaw LA, Ladipo JK, Richards WO. Effects of mesenteric ischemia and reperfusion on small bowel basic electrical rhythm. Presented at the Association of VA Surgeons, May 1997.
  57. Wang PC, Richards WO. The outcome of Heller myotomy without antireflux procedure in patients with achalasia. Presented at the Scott Society 1997.
  58. Richards WO. Laparoscopic surgery in West Africa. Presented at the Scott Society 1997.
  59. Bradshaw LA, Ladipo JK, Hegde SS, Just S, Wikswo JP, Richards WO. The vector magnetic field of the human stomach. Gastro 112(4):A704.
  60. Hedge SS, Bradshaw LA, Lapido JK, Wikswo JP, Richards WO. Intestinal tachyarrhythmias during small bowel ischemia. Gastro 112(4):A368.
  61. Hegde SS, Bradshaw LA, Lapido JK, Richards WO. Effects of mesenteric ischemia on small bowel basic electrical rhythm. Gastro 112(4):A1447.
  62. Wang PC, Olsen D, Holzman MD, Sharp KW, Richards WO. Laparoscopic approach to patients with failed antireflux procedures. Poster presentation, SMA, November 1997.
  63. Wang PC, Holzman MD, Richards WO. Laparoscopic repair of rectal prolapse Ripstein procedure. Paper presentation, SMA, November 1997.
  64. Ladipo JK, Hegde SS, Halter S, Bradshaw LA, Richards WO. Correlation between histopathology and intestinal basic electrical rhythm activity during ischemia. Paper presentation, SMA, November 1997.
  65. Wang P, Sharp K, Holzman M, Holzomb G, Richards WO. The outcome of laparoscopic Heller myotomy without antireflux procedure in patients with achalasia. Presented SESC, February 1997.
  66. Ladipo JK, Bradshaw LA, Hegde SS, Halter S, Seidel SA, Wikswo JP, Richards WO, Non- Invasive Detection of Normal and Ischemic Bowel In Vivo Using a SQUID. Gastro , April 15, 1998, Vol. 114, #4, Part 2, G1591.
  67. Ladipo JK, Seidel SA, Bradshaw LA, Halter S, Richards WO, Basic Electrical Rhythm (BER) Activity As a Measure of Bowel Viability During Mesenteric Ischemia and Reperfusion. Gastro. April 15, 1998, Vol. 114, #4, Part 2, S0133.
  68. Lind CD, Clements RH, Wang P, Mertz H, Holzman M, Sharp K, Richards WO, Laparoscopic Heller Myotomy (LHM) without Fundoplication Improves Symptoms of Gastroesophageal Reflux (GER) in Patients with Achalasia. Gastro, April 15, 1998, Vol. 114, #4, Part 2, G0836.
  69. Lind CD, Clements RH, Mertz H, Holzman MD, Sharp KW, Richards WO. Non-Esophageal Gastrointestinal Symptoms (NEWS) Predict Worse Results after Fundoplication for Gastroesophageal Reflux Disease. Gastro, April 15, 1998, Vol. 114, #4, Part 2, G0837.
  70. Bradshaw LA, Ladipo JK, Haupt CD, Seidel SA, Van Leeuwen P, Wikswo JP, Richards WO, Noninvasive Measurement of Gastric Propagation Using a Multichannel Squid Magnetometer. Gastro, April 15, 1998, Vol. 114, #4, Part 2, G3003.
  71. Clements RH, Chekan EG, Eubanks WS, Holzman MD, Lind CD, Brody FJ, Sharp KW, Wang PC, Richards WO. Symptomatic Outcome after Laparoscopic Heller Esophagomyotomy with and without Fundoplication. Gastro, April 15, 1998, Vol.114, #4, Part 2, S0046.
  72. Draper KR, Mertz H, Caudillo M, Sharp K, Holzman MD, Wolff RS, Richards WO Irritable Bowel Symptoms Predict Worse Functional Outcome after Laparoscopic Antireflux Surgery. Gastro, April 1999, Vol.116, No. 4, A1308.
  73. Bradshaw LA, Ladipo JK, Richards WO Characterization of Gastric Electrical Activity Using a SQUID Magnetometer. Gastro., April 1999, Vol. 116, No.4, A963.
  74. Bradshaw LA, Redmond A, Richards WO. Biomagnetic Detection of Gastric Dysrhythmia Associated with Vagotomy. Presented at 11th Biennial Meeting, American Motility Society, September 2000.
  75. Bradshaw LA, Redmond A, Richards WO. Correlation of Magnetic and Electric Detection of Gastric Electrical Activity. Presented at 11th Biennial Meeting, American Motility Society, September 2000.
  76. Khaitan L, Sharp KW, Holzman MD, Cohen J, Richards WO. Evaluation of Dysphagia After Fundoplication with Esophageal Impedance. Gastro April 2001.
  77. Khaitan L, Powitsky E, Courey M, Holzman MD, Richards WO. Is one Episode Enough Redefining Pathologic Extra-Esophageal Reflux. Gastro April 2001.
  78. Cohen JA, Harris PA, Byrne DW, Arian A, Khaitan L, Holzman MD, Sharp KW, Richards WO. Sleep Architecture in Patients with Gastroesophageal Reflux Disease. SAGES Scientific Session April 2001 Meeting.
  79. Houston H, Khaitan L, Scholz S, Holzman MD, Richards WO: First Year Experience of Patients Undergoing The Stretta Procedure. Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons, New York City, March, 2002.
  80. Khaitan L, Cohen JA, Richards WO. Laparoscopic Adhesiolysis and Placement of Seprafilm: A Novel approach to patients with Intractable Abdominal Pain. SAGES April 2001 Meeting.
  81. Khaitan L, Cohen JA, Richards WO. Achalasia Following Fundoplication. SAGES Scientific Session April 2001 Meeting.
  82. Cohen J, Arain A, Harris P, Byrne D, Khaitan L, Holzman MD, Sharp KW, Richards WO. Objective Measures of Sleep Quality Before and After Laparoscopic Nissen Fundoplication. Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons, New York City, March, 2002.
  83. Foster A, Richards WO, McDowell JA, Laws HL, Clemments RH. Gastrointestinal Symptoms are More Intense in Morbidly Obese Patients, Poster Presented at Society of American Gastrointestinal Endoscopic Surgeons, New York City, March, 2002.
  84. Khaitan L, Bhatt P, Richards WO, Houston H, Sharp KW, Holzman MD. Comparison of Patient Satisfaction With Redo Verses Primary Fundoplication Presented at Society of American Gastrointestinal Endoscopic Surgeons, New York City March, 2002.
  85. McDowell J, Myers A, Bradshaw L, Richards WO. Noninvasive Detection of Mesenteric Ischemia Using A Superconducting QUantum Interference Device (SQUID) Association VA Surgeons, April 2002 Houston, TX.
  86. Khaitan L, Powitsky E, Houston H, Courey M, Richards WO. Reflux Patterns in Patients with Extra-Esophageal Symptoms Compared to Patients with Typical Reflux Symptoms, DDW, May, 2002.
  87. Houston H, Khaitan L, Holzman M, Sharp KW, Richards WO. Laparoscopic Nissen Fundoplication: 5 Year Follow-up, DDW, May 2002.
  88. Clements RH, Foster A, Richards WO, McDowell J, Laws HL. Gastrointestinal Symptoms Are More Intense in Morbidly Obese Patients and Are Improved with Laparoscopic Roux-En-Y Gastric Bypass. Am Society of Bariatric Surgeons, Las Vegas, June 2002.
  89. Bradshaw A, Myers A, McDowell J, Richards WO. Noninvasive Identification of Mechanical Uncoupling of Gastric Smooth Muscle using Magnetogastrography. Supplement to Gastroenterology 2002:122 A-559.
  90. McDowell J, Myers A, Bradshaw LA, Richards WO. Noninvasive Detection of Mesenteric Ischemia using a Superconducting Quantum Interference Device. Supplement to Gastroenterology 2002:122 A-436.
  91. Roy OP, Myers A, McDowell J, Bradshaw LA, Richards WO. Measurement of DC Injury Currents using the SQUID Magnetometer. Supplement to Gastroenterology 2002:122 A-438.
  92. Myers A, McDowell J, Bradshaw LA, Richards WO. Simultaneous Magnetic Identification of Human Gastrointestinal Frequency Gradients. Supplement to Gastroenterology 2002:122 A-325.
  93. Bradshaw LA, Myers AG, Wikswo JP Jr., Richards WO: A Dipole simulation of magnetic fields from intestinal electrical control activity. Neurogastroenterology and Motility Vol 14 No 4 424, 2002.
  94. Palmer RL, Bradshaw LA, Myers A, McDowell J, Richards WO. Use of a magnetogastrogram for detecting gastric uncoupling in an animal model. Neurogastroenterology and Motility Vol 14 No4, 445, 2002.
  95. McDowell J, Nava D Richards WO. FACS, Decreasing Complication Rates with experience in Laparoscopic Roux en Y Gastric Bypass at Vanderbilt. Presented at TN Chapter of ACS, August 2003.
  96. Dassinger S, Khaitan L, Holzman MD, Sharp K, Richards WO. Laparoscopic Nissen Fundoplication: 5 Year Follow-Up. Presented TN Chapter ACS, August 2003.
  97. Lo Menzo E, Khaitan L, Williams E, Richards WO. Petersen’s Hernia After Laparoscopic Roux- en-Y Gastric Bypass is it Avoidable? A Case Presentation and Review of the Literature. Presented at SAGES Los Angeles, March 2003.
  98. Lo Menzo E, Khaitan L, Richards WO. Concomitant Laparoscopic Gastric Bypass and Paraesophageal Hernia. Presented at SAGES Los Angeles, March 2003.
  99. Torquati A, Houston H, Holzman M, Sharp K, Richards WO. Evaluation of patient satisfaction and reflux symptoms after fundoplication with Collis gastroplasty. Presentation SE Surgical Congress 2004.
  100. Torquati A, Grande M, Richards WO, Spagnoli A. Laparoscopic Surgery Preserves the Integrity like Growth Factors (IGFs)-Insuline like Growth Factor Binding Proteins (IGFBP) Axis when Compared with Open Surgery. Presented at University of Rome Tor Vergata, Italy.
  101. Lutfi R, Torquati A, Kaiser J, Holzman M, Richards WO. Three Years Experience with the Stretta Procedure. Did it Really Make a Difference? SAGES 2004.
  102. Lutfi R, Torquati A, Holzman M, Richards WO. Surgical Treatment of Secondary Achalasia: Lessons Learned. SAGES 2004.
  103. Torquati A, Lutfi R, Kaiser J, Richards WO. Laparoscopic Fundoplication: Is it Worthwhile with Persistent with GERD Symptoms Despite Proton Pump Inhibitors? SAGES 2004.
  104. Torquati A, Richards WO. Benchmarking a Surgical Society: Is SAGES Making a Significant Impact on Surgical Sciences? SAGES 2004.
  105. Torquati A, McDowell J, Houston H, Lutfi R, Richards WO. 200 Consecutive Laparoscopic Roux-en-y Gastric Bypasses: Lessons Learned with Three Different Gastrojejunostomy Techniques. SAGES 2004.
  106. Houston H, Torquati A, Lutfi R, Kaiser J, Richards WO. Prevalence of Non-acid Reflux Following Medical and Surgical Treatment of Barrett’s Esophagus. SAGES 2004.
  107. Palmer RL, Jordan P, Bradshaw LA, Sims J, Richards WO. Unshielded Post-Recording Noise Removal Methods with a SQUID Magnetometer for Low Frequency Signals BMES conference Nashville, TN Oct 2003.
  108. Bradshaw LA, Myers AG, Redmond A, Wikswo JP, and Richards WO. Biomagnetic detection of gastric electrical activity in normal and vagotomized rabbits. Neurogastroenterology & Motility, 2003.
  109. Scholz S, Bradshaw LA, Myers AG, Richards WO. Nicthinvasive Messung von Darmischämie mit dem SQUID Magnetometer. (Abstract) Kongress der Deutschen Gesellschaft für Chirurgie. Berlin, Germany, 2002.
  110. Bradshaw LA, Myers AG, McDowell JG, Richards WO. Noninvasive identification of mechanical uncoupling of gastric smooth muscle using magnetogastrography. (Abstract) Gastro 122(3), A559, 2002.
  111. McDowell JG, Myers AG, Bradshaw LA, Richards WO. Noninvasive detection of mesenteric ischemia using a Superconducting QUantum Interference Device. (Abstract) Gastro 122(3), A436, 2002.
  112. Myers AG, McDowell JG, Bradshaw LA, Richards WO. Simultaneous magnetic identification of human gastrointestinal frequency gradients.(Abstract) Gastro 122(3), A325, 2002.
  113. Roy OP, Myers AG, McDowell JG, Bradshaw LA, Richards WO. Measurement of DC injury currents using the SQUID magnetometer. (Abstract) Gastro 122(3), A 438, 2002.
  114. Bradshaw LA, Myers AG, Richards WO, and Wikswo, JP, Jr. A spatiotemporal dipole simulation of biomagnetic field from gastrointestinal electrical activity. (Abstract) 2002 24th Annual International Conference of the IEEE/EMBS and Annual Fall Meeting of the BMES, Houston, TX, 2002.
  115. Myers AG, Bradshaw LA, Wikswo, JP, Jr., and Richards WO. Magnetic vector analysis of gastrointestinal electrical control activity. 2002 24th Annual International Conference of the IEEE/EMBS and Annual Fall Meeting of the BMES, Houston, TX, 2002.
  116. Palmer RL, Bradshaw LA, Myers AG, McDowell JG, and Richards WO. Use of magnetogas- trogram for detecting gastric uncoupling in an animal model. Neurogastroenterology & Motility, 14(4): 445, 2002.
  117. Bradshaw LA, Myers AG, Wikswo JP, Jr., and Richards WO. A dipole simulation of magnetic fields from intestinal electrical control activity. Neurogastroenterology & Motility, 14(4): 424, 2002.
  118. Bradshaw LA, Myers AG, McDowell JG, and Richards WO. Propagation characteristics of gastric biomagnetic fields. American Gastroenterological Association, Digestive Disease Week, Orlando, Florida, 2003.
  119. Buist ML, Cheng LK, Richards WO, Bradshaw LA and Pullan AJ. Modeling GI Electrical Activity. (AGA Distinguished Abstract Award) Digestive Disease Week, Orlando, Florida, 2003.
  120. Pullan AJ, Cheng, LK, Bradshaw LA, Richards WO and Buist ML. An anatomical model of the gastrointestinal system for producing bioelectric and biomagnetic fields. World Congress on Medical Physics and Biomedical Engineering, Sydney, Australia, 2003.
  121. Cheng LK, Buist ML, Yassi RY, Richards WO, Bradshaw LA, Pullan AJ. A model of the ?electrical activity of the stomach: from cell to body surface. 25th Annual International Conference of the IEEE EMBS, Cancun, Mexico, 2003.
  122. Bradshaw LA, Sims JA, Jordan P, Wikswo JP, Richards WO. Vector analysis of gastrointestinal ?biomagnetic fields. 25th Annual International Conference of the IEEE EMBS, Cancun, Mexico, 2003.
  123. Palmer RL, Jordan P, Bradshaw LA, and Richards WO. Unshielded post-recording noise removal methods with SQUID magnetometer for low frequency signals. Biomedical Engineering Society,2003 Annual Fall Meeting, Nashville, TN, 2003.
  124. Bradshaw LA and Richards WO. Noninvasive detection of gastric electrical activity using the vector magnetogastrogram. Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  125. Sims JA, Bradshaw LA and Richards WO. Magnetic vector analysis of intestinal ischemia. Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  126. Jordan P, Bradshaw LA, and Richards WO. Detection and characterization of gastric basic electrical rhythm in diabetic animals. Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  127. Buist ML, Cheng LK, Yassi R, Bradshaw LA, Richards WO, and Pullan AJ. Modeling gastric electrical uncoupling. Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  128. Torquati, Alfonso, Houston, Hugh, L., Richards, William. Multichannel Intraluminal Impedance Combined with Manometry Improves the Evaluation of Functional Esophageal Motility Disorders in Patients Undergoing Antireflux Surgery for Gastroesophageal Reflux Disease (GERD). Digestive Disease Week, May, 2003.
  129. Bradshaw, Alan, Myers, Andrew, McDowell, James, Richards, William. Propagation Characteristics of Gastric Biomagnetic Fields. Digestive Disease Week, May 2003.
  130. Alfonso Torquati, Rami Lutfi, Kenneth Sharp, William Richards Preoperative risk factors for developing pathologic Gastro-esophageal reflux after Heller myotomy. AGA digestive disease Week May 2004
  131. Richards WO, Torquati, A, Holzman, MD, Khaitan, L, Byrne, D, Lutfi, R, Sharp, K: Heller Myotomy Versus Heller Myotomy with Dor Fundoplication for Achalasia: A Prospective Randomized Double-blind Clinical Trial. Presented American Surgical Association, April 2004, San Francisco, CA.
  132. Bradshaw, L.A., Sims, J., Palmer, R., Richards, W.O. Vector Magnetogastrogaphy for Detection of Gastric Pharmacological Uncoupling. Presented at BMES 2004 Annual Fall Meeting.
  133. Lutfi, R.E., Torquati, A., Richards, W.O. Predictors for Quality of Life Improvement after Laparoscopic Gastric Bypass. Presented American College of Surgeons, October 10-14, 2004, New Orleans, LA.
  134. Poulose, B.K., Holzman, M., Zhu, Y., Smalley, W., Richards, W.O., Wright, J.K., Melvin, W., Griffin, M., . National Variations in Bariatric Surgery Utilization. Presented American College of Surgeons, October 10-14, 2004, New Orleans, LA.
  135. A. Torquati, H.L. Houston, J. Kaiser, M.D. Holzman and W.O. Richards. Long-term and follow- up study of the Stretta procedure for the treatment of gastroesophageal reflux disease. Presented European Association for Endoscopic Surgery, Glasgow June 2003.
  136. Berch BR, Torquati A, Lutfi RE, Richards WO. Experience with the Optical Access Trocar for Safe and Rapid Entry in Performing the Laparoscopic Gastric Bypass - Poster presentation at SAGES April 2005.
  137. Barry R. Berch MD, R. Dean Nava BS, Alfonso Torquati MD, Kenneth W. Sharp MD, William O. Richards MD. Long-term Results of Laparoscopic Myotomy: Follow-up Study of Fifty Patients - Poster presentation for DDW May 2005.
  138. Barry R. Berch, MD; Alfonso Torquati, MD; Willie Melvin, MD; Richards WO. Hand-Assisted Verses Totally Laparoscopic Gastric Bypass: A Case Control Study - Poster presentation for ASBS in June 2005. .
  139. Bradshaw LA, Redmond A, and Richards WO. Correlation of magnetic and electric detection of gastric electrical activity. (Abstract) Neurogastroenterology & Motility 12(5): 478, 2000.
  140. Bradshaw LA, Redmond A, and Richards WO. Biomagnetic detection of gastric dysrhythmia associated with vagotomy. (Abstract) Neurogastroenterology & Motility 12(5): 478, 2000.
  141. Bradshaw LA, Myers AG, Richards WO. Spatiotemporal biomagnetic characterization of intestinal ischemia. (Abstract) XVIII International Symposium on Neurogastroenterology and Motility. Madison, WI, 2001.
  142. Scholz S, Bradshaw LA, Myers AG, and Richards WO. Noninvasive detection of ischemic bowel using a SQUID magnetometer. Presented at the 2002 German National Surgical Conference, 2002.
  143. Scholz S, Bradshaw LA, Myers AG, Richards WO. Nicthinvasive Messung von Darmischämie mit dem SQUID Magnetometer. (Abstract) Kongress der Deutschen Gesellschaft für Chirurgie. Berlin, Germany, 2002.
  144. Bradshaw LA, Myers AG, McDowell JG, Richards WO. Noninvasive identification of mechanical uncoupling of gastric smooth muscle using magnetogastrography. (Abstract) Gastro 122(4), W1065, 2002.
  145. McDowell JG, Myers AG, Bradshaw LA, Richards WO. Noninvasive detection of mesenteric ischemia using a Superconducting QUantum Interference Device. (Abstract) Gastro 122(4), T1222, 2002.
  146. Myers AG, McDowell JG, Bradshaw LA, Richards WO. Simultaneous magnetic identification of human gastrointestinal frequency gradients. (Abstract) Gastro 122(4), M1561, 2002.
  147. Roy OP, Myers AG, McDowell JG, Bradshaw LA, Richards WO. Measurement of DC injury currents using the SQUID magnetometer. (Abstract) Gastro 122(4), T1232, 2002.
  148. Bradshaw LA, Myers AG, Richards WO, and Wikswo, JP, Jr. A spatiotemporal dipole simulation of biomagnetic field from gastrointestinal electrical activity. (Abstract) 2002 24th Annual International Conference of the IEEE/EMBS and Annual Fall Meeting of the BMES, Houston, TX, 2002.
  149. Myers AG, Bradshaw LA, Wikswo, JP, Jr., and Richards WO. Magnetic vector analysis of gastrointestinal electrical control activity. 2002 24th Annual International Conference of the IEEE/EMBS and Annual Fall Meeting of the BMES, Houston, TX, 2002.
  150. Palmer RL, Bradshaw LA, Myers AG, McDowell JG, and Richards WO. Use of magnetogas- trogram for detecting gastric uncoupling in an animal model. Neurogastroenterology & Motility, 14(4): 445, 2002.
  151. Bradshaw LA, Myers AG, Wikswo JP, Jr., and Richards WO. A dipole simulation of magnetic fields from intestinal electrical control activity. Neurogastroenterology & Motility, 14(4): 424, 2002.
  152. Bradshaw LA, Myers AG, Sims JA, McDowell JG, and Richards WO. Noninvasive biomagnetic identification of chronic mesenteric ischemia. Presented as poster at DDW American Gastroenterological Association, 2003.
  153. Bradshaw LA, Myers AG, McDowell JG, and Richards WO. Propagation characteristics of gastric biomagnetic fields. Gastro 124(4): A675, 2003.
  154. Buist ML, Cheng LK, Richards WO, Bradshaw LA and Pullan AJ. Modeling GI Electrical Activity. (AGA Distinguished Abstract Award) Gastro 124(4): A23, 2003.
  155. Pullan AJ, Cheng, LK, Bradshaw LA, Richards WO and Buist ML. An anatomical model of the gastrointestinal system for producing bioelectric and biomagnetic fields. Presented at the World Congress on Medical Physics and Biomedical Engineering, Sydney, Australia, 2003.
  156. Cheng LK, Buist ML, Yassi RY, Richards WO, Bradshaw LA, Pullan AJ. A model of the elec- trical activity of the stomach: from cell to body surface. Presented at the 25th Annual International Conference of the IEEE EMBS, Cancun, Mexico, 2003.
  157. Bradshaw LA, Sims JA, Jordan P, Wikswo JP, Richards WO. Vector analysis of gastrointestinal biomagnetic fields. Presented at the 25th Annual International Conference of the IEEE EMBS, Cancun, Mexico, 2003.
  158. Palmer RL, Jordan P, Bradshaw LA, and Richards WO. Unshielded post-recording noise removal methods with SQUID magnetometer for low frequency signals. Presented at the Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  159. Bradshaw LA and Richards WO. Noninvasive detection of gastric electrical activity using the vector magnetogastrogram. Presented at the Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  160. Sims JA, Bradshaw LA and Richards WO. Magnetic vector analysis of intestinal ischemia. Presented at the Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  161. Jordan P, Bradshaw LA, and Richards WO. Detection and characterization of gastric basic electrical rhythm in diabetic animals. Presented at the Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  162. Buist ML, Cheng LK, Yassi R, Bradshaw LA, Richards WO, and Pullan AJ. Modeling gastric electrical uncoupling. Presented at the Biomedical Engineering Society 2003 Annual Fall Meeting, Nashville, TN, 2003.
  163. Torquati A, Houston H, Richards WO Multichannel intraluminal impedance combined with manometry improves the evaluation of functional esophageal motility disorders in patients undergoing antireflux surgery for gastroesophageal reflux disease (GERD). Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Los Angeles March 2003.
  164. Torquati A, Houston H, Holzman M, Sharp KW, Richards WO Evaluation of patient satisfaction and reflux symptoms after fundoplication with Collis gastroplasty. Presented at the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Los Angeles March 2003.
  165. Torquati A, Grande M, Richards WO, Spagnoli A Laparoscopic surgery preserves the integrity of the Insulin-like Growth Factors (IGFs) - Insulin-like Growth Factor Binding Proteins (IGBP) axis when compared with open surgery.. Presented at the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Los Angeles March 2003.
  166. Torquati A, Houston H, Richards WO Multichannel intraluminal impedance combined with manometry improves the evaluation of functional esophageal motility disorders in patients undergoing antireflux surgery for gastroesophageal reflux disease. Presented at the Digestive Disease Week (DDW) Orlando May 2003.
  167. Torquati A, Houston H, Richards WO Long-term results of the Stretta procedure for the treatment of gastroesophageal reflux disease (GERD). Oral Presentation at European Association of Endoscopic Surgery, Glasgow (UK) June 2003.
  168. Bradshaw LA, Richards WO. Biomagnetic methods for assessing stomach and small bowel motility. VIII Mexican Symposium on Medical Physics, Invited Talk, Guanajuato, Mexico, 2004.
  169. Bradshaw LA, Myers AG, McDowell JG, and Richards WO. Analysis of propagation of gastric magnetic fields. Presented at BIOMAG 2004, Boston, MA, 2004.
  170. Bradshaw LA, Roy OP, Myers AG, McDowell JG, Wikswo JP, and Richards WO. Identification of magnetic field injury currents in ischemic small intestine. Presented at BIOMAG 2004, Boston, MA, 2004.
  171. Bradshaw LA, Richards WO. Biomagnetic methods for assessing gastric and small bowel electrical activity. Medical Physics: Presented at the Eighth Mexican Symposium on Medical Physics. 724(1): 8-13, 2004.
  172. Torquati A, Lutfi RE, Kaiser J, Richards WO. Laparoscopic fundoplication: is it worthwhile in patients with persistent GERD symptoms despite proton pump inhibitors therapy. Presented at Digestive Disease Week, New Orleans May 2004.
  173. Torquati A, McDowell J, Houston H, Kaiser J, Richards WO. 200 consecutive laparoscopic roux- en-y gastric bypasses: lessons learned with three different gastro-jejunostomy techniques. Presented at the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Denver (CO) April 2004.
  174. Houston H, Torquati A, McDowell J, Kaiser J, Richards WO. Prevalence of non-acid reflux following medical and surgical treatment of Barrett’s esophagus. Presented at the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Denver (CO) April 2004.
  175. Torquati A, O’Rear L, Spagnoli A, Richards WO, Beauchamp D. RUNX3 Inhibits Cell Proliferation and Induces Apoptosis by Reinstating TGF-ß responsiveness in Esophageal Adenocarcinoma Cells. Plenary Session presentation at the Society of University Surgeons, 65th meeting, St. Louis, February 2004.
  176. Lutfi RE, Torquati A, Kaiser J, Holzman MD, Richards WO. Three years experience with the Stretta procedure, does it really make a difference. Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Denver (CO) April 2004.
  177. Lutfi RE, Torquati A, Holzman MD, Richards WO. Surgical treatment of secondary achalasia: lessons learned. Presented at the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Denver (CO) April 2004.
  178. Torquati A, Lutfi RE, Sharp KW, Richards WO. Preoperative risk factors for developing pathologic gastro-esophageal reflux after Heller myotomy. Plenary Session SSAT: Digestive Disease Week, New Orleans May 2004.
  179. Bradshaw LA, Sims J, Richards WO. Noninvasive characterization of gastric slow wave by magnetogastrography, electrogastrography and intraluminal gastric manometry in human subjects. Gastro 128(4): A544, 2005.
  180. Lutfi RE, Torquati A, Kaiser J, Holzman M, Richards WO. Three year's experience with the Stretta procedure: did it really make a difference. Presented at SAGES annual meeting 2005.
  181. Poulose BK, Griffin MR, Zhu Y, Smalley W, Richards WO, Wright JK, Melvin W, Holzman MD. National analysis of adverse patient safety for events in bariatric surgery. Presented at the Southeastern Surgical Congress annual meeting 2005.
  182. Poulose BK, Holzman MD, Zhu Y, Smalley W, Richards WO, Wright JK, Melvin W, Griffin MR. National variations in morbid obesity and bariatric surgery use. Presented at the American College of Surgeons Annual meeting 2005.
  183. Poulose BK, Griffin MR, Moore DE, Zhu Y, Smalley W, Richards WO, Wright JK, Melvin W, Holzman MD. Risk factors for post-operative mortality in bariatric surgery Presented at the AAAS annual meeting 2004.
  184. Torquati A, Lutfi R, Abumrad N, Richards WO. Is Roux-en-Y gastric bypass surgery the most effective treatment for type 2 diabetes mellitus in morbidly obese patients. Presented at the SSAT annual meeting 2005.
  185. Berch BR, Nava RD, Torquati A, Sharp KW, Richards WO. Myotomy: follow-up study of 50 patients. Poster SSAT annual meeting 2005.
  186. Torquati A, Lutfi RE, Khaitan L, Holzman MD, Sharp KW, Richards WO. Heller Myotomy Versus Heller Myotomy plus Dor Fundoplication for Achalasia: cost utility analysis of a randomized trial. Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Ft Lauderdale (FL) April 2005.
  187. Lutfi RE, Torquati A, Sekhar N, Kaiser J, Carroll A, Richards WO. Predictors of Success after Laparoscopic Gastric Bypass A Multivariate Analysis of Socioeconomic Factors. Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Ft Lauderdale (FL) April 2005.
  188. Sekhar N, Torquati A, Lutfi RE, Richards WO. Endoscopic Evaluation of the gastrojejunostomy in laparoscopic gastric bypass: a series of 340 patients without postoperative leak. Oral Presentation at Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Ft Lauderdale (FL) April 2005.
  189. Torquati A, Lutfi RE, Abumrad N, Richards WO. Is Roux-en-Y Gastric Bypass Surgery the Most Effective Treatment for Type 2 Diabetes Mellitus in Morbidly Obese Patients Plenary Session SSAT: Digestive Disease Week, Chicago May 2005.
  190. Torquati A, Lutfi RE, Abumrad N, Richards WO. Resolution of Metabolic Syndrome after Laparoscopic Roux en Y Gastric Bypass. Plenary Session American Society of Bariatric Surgery, Orlando June 26-July 1, 2005.
  191. Torquati A, Richards WO, Holzman MD, Sharp KW. Laparoscopic Myotomy for Achalasia: Predictors of Successful Outcome after 200 Cases. Presentation at the 2005 Meeting of the Southern Surgical Association. PMCID: PMC1570561
  192. Torquati A, Spagnoli A, Richards WO, Expression of RUNX3 in Barrett’s metaplasia after Nissen Fundoplication. Plenary Session at the 2006 meeting of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES).
  193. Youssef Y, Sekhar N, Kaiser J, Richards WO, Spagnoli A, Torquati A Risk Of Secondary Hyperparathyroidism After Laparoscopic Gastric Bypass Surgery In Obese Women. Oral Presentation at the 2006 meeting of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES).
  194. Youssef Y, Richards WO, Sharp K, Holzman M, Kaiser J, Sekhar N, Torquati A. Relief of Dysphagia after Laparoscopic Heller Myotomy Improves Long Term Quality of Life. Presented at SSAT: Digestive Disease Week, Los Angeles May 2005.
  195. Ketel C, Ginnings JG, Youssef YK, Sekhar N, Kaiser J, Richards WO, Torquati A. Increased Risk Of Secondary Hyperparathyroidism In African American After Laparoscopic Gastric Bypass Surgery. Oral Presentation at the 2006 meeting of the American Society of Bariatric Surgery (ASBS).
  196. Irimia A, Gallucci MR, Wikswo JP, Richards WO, and Bradshaw LA. Comparison of chaotic biomagnetic field patterns recorded from the arrhythmic cardiac and GI systems. Presented at the International Conference on Complex Systems, Boston, MA, 2006.
  197. Irimia A, Richards WO and Bradshaw LA. Noninvasive recordings of electrical response activity using a SQUID biomagnetometer. American Gastroenterological Society, Los Angeles, CA, Gastro 130(4): A431, 2006.
  198. Bradshaw LA, Sims J, McDonald K, and Richards WO. Glucagon alters frequency and propagation velocity of the gastric magnetic field. American Gastroenterological Society, Los Angeles, CA, Gastro 130(4): A245, 2006.
  199. Biomagnetic detection of gastric slow wave changes evoked by glucagon. LA Bradshaw, JA Sims, RM Palmer, WO Richards. Presented at the Joint International Neurogastroenterology & Motility Meeting, Boston, MA, 2006.
  200. Cordova-Fraga T, Hernandez E, Huerta R, Vargas M, Bradshaw A, and Sosa M. Assessment of gastric retention time through a magnetic indigestible particle: Preliminary results. Presented at the 10th Mexican Symposium on Medical Physics, Mexic 2007.
  201. Irimia A, Bradshaw LA, Richards WO. Characterization of gastric electrical activity parameters in pigs using simultaneous EGG and MGG. Presented at the American Gastroenterolgical Society, Washington, DC, 2007.
  202. Hernandez-Torres E, Cordova-Fraga T, Mendoza A, Bradshaw LA, Hernandez-Gonzales M, Sosa M. Magnetic scanning of the gastroesophageal activity in two distention states. Presented at the 6th International Conference on Bioelectromagnetism. Fukushima, Japan, 2007.
  203. Goodale A, Obioha C, Erickson J, Irimia A, Williams B, Bradshaw LA, and Richards WO. Partial mesenteric ischemia alters biomagnetic slow wave. Presented at the American Gastroenterological Society, San Diego, CA, 2008,
  204. Obioha C, Goodale A, Erickson J, Bradshaw LA, and Richards WO. Correlation of bioamgnetic and bioelectric recordings in a patient with ischemic bowel. Presented at the American Gastroenterological Society, San Diego, CA, 2008.
  205. Richards WO Laparoscopic Omentectomy for Treatment of Type 2 Diabetes presented at the Surgical Biology Club, 10/7/2007 New Orleans, LA.
  206. Irimia A, Wikswo JP, Richards WO, Bradshaw LA. Application of nonlinear dynamical analysis for the study of gastrointestinal circulatory pathology. Presented at Dynamics Days 2008, Knoxville, TN, 2008.
  207. Schneider A, Rawat D, Weinstein S,Gupte S, Richards WO: Laparoscopic Roux-en-Y Gastric Bypass Reduces Elevated Glucose-6-Phosphate Dehydrogenase Activity in Morbidly Obese Diabetic Patients. Oral presentation at SAGES April 2011.
  208. Rose M, Richards WO; Laparoscopic Longitudinal Jejunectomy For Intussusception After Gastric Bypass Poster presentation Southeastern Surgical Congress Birmingham, AL Feb 12, 2012. Brief report in American Surgeon June 2012 Vol 78 No.6. E308 Available online only atwww.ingentaconnect.com
  209. Bradshaw LA and Richards WO. Multichannel MGG identifies intestinal slow wave dysrythmias in chronic mesenteric ischemia. Presented during Digestive Disease Week, San Diego, CA, May 19, 2012.
  210. Bradshaw LA and Richards WO. Progressive occlusion of mesenteric artery changes Biomagnetic signature of intestinal slow wave. Presented during Digestive Disease Week, San Diego, CA, May 22,2012.
  211. Koonce CJ, Richards WO, Rodning CB; Cervical Pharyngostomy. Presented at Alabama American College of Surgeons Meeting, Sandestin, FL, June 15, 2012.
  212. Schneider A, Richards WO, Alvarez D, Simmons J, Gonzalez R, Frotan M, Gillespie M. “The ?presence of SIRS in burn and trauma patients correlates with altered microvascular function.” Presented at 39th Annual Medical Student Research Day, University of South Alabama, Mobile, AL August 3, 2012.
  213. Lee YL, Schneider A, Simmons JD, Richards WO. “Sublingual Microscopy As A Measure of Tissue Perfusion in Trauma.” Presented at Annual Academic Surgical Congress, New Orleans, LA, Feb 7, 2013. J Surg Research Feb;179(2):320.
  214. Simmons JD, Lee YL, Mulekar S, Kuck JL, Brevard SB, Gonzalez RP, Gillespie MN, Richards WO. Elevated levels of plasma mitochondrial DNA DAMPs are linked to clinical outcome in severely injured human subjects. Oral presentation by WOR at the American Surgical Association. April 2013 Indianapolis, IN.
  215. Richards WO, Cioffi DL; Bariatric surgery influences endothelial autoantibody concentration in type 2 diabetics. Poster presentation by WOR at the Annual Scientific Session of American Society For Metabolic and Bariatric Surgery at Obesity Week, 14, Nov 2013, Atlanta, GA.
  216. Richards WO, Audia, JP , Alvarez DF; Bariatric surgery improves the number of late outgrowth endothelial progenitor cells. Oral presentation by WOR at the Annual Scientific Session of American Society For Metabolic and Bariatric Surgery at Obesity Week, 15 Nov 2013, Atlanta, GA.

 

 

 

 

 

 

 

 

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