Douglas Rex

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Douglas Rex

M.D.
NationalityAmerican
Alma materHarvard College
Indiana University School of Medicine
Occupation(s)Physician, Professor of Medicine
Known forResearch in colonoscopy

Douglas Kevin Rex is an American gastroenterologist who teaches at Indiana University School of Medicine.[1] He is well known for his prolific publishing in the field of gastroenterology particularly in colonoscopy and colorectal cancer screening[2] and is widely regarded as one of the doctors who established colonoscopy as a safe and effective procedure.[3] He played a key role in Medicare reimbursement for colonoscopy resulting in adoption of the procedure as a colorectal cancer screening tool in the US.[4]

Rex returned to home state Indiana and enrolled at Indiana University School of Medicine in 1976 after graduating from Harvard College, in Cambridge, Massachusetts. As noted on the IU webpages, he remains loyal to his alma mater despite being in considerable demand all over the world. He has won many accolades including the Master Endoscopist Award (2003)[5] and Rudolf Schindler award (2013) from ASGE;[6] Berk-Fise clinical achievement award (2011)[7] from ACG. He is a past president and a Master of both the American Society of Gastrointestinal Endoscopy and the American College of Gastroenterology,[8] a Master of the American College of Physicians,[9] and is a Distinguished Professor of medicine at Indiana University since 2009.

Early life

Rex was born in Ligonier, Indiana and attended West Noble High School[10] before going on to Harvard College on a General Motors scholarship.

Medical career

Rex graduated summa cum laude from Harvard and enrolled at Indiana University School of Medicine in 1976. After graduating with the highest distinction from medical school he pursued residency at the same school going on for a fellowship in gastroenterology and chief residency at one of the IU hospitals. Colonoscopy in the 1980s was still considered unsafe and screening programs were mostly limited to occult blood testing, which although extremely cheap, was not very accurate. Rex conducted the first population based study where he invited about 800 doctors and spouses in Indiana for screening colonoscopy. In addition to confirming the safety of the procedure, high polyp prevalence was noted which was replicated in later studies. More than two-thirds of colorectal cancer burden is the result of slowly progressing pre-cancerous polyps. Removal of at least larger of these polyps should therefore result in a decrease of colorectal cancer incidence. Colonoscopy screening for colorectal cancer was thus established in the United States. Rex is a major figure in the technical aspect of colonoscopy and his textbook on the procedure penned with Waye and Williams, remains the authority in that particular field.[11] His most widely cited study is a tandem colonoscopy study in which 183 patients underwent 2 colonoscopies on the same day.[12] The study brought to light that colonoscopy misses a significant percentage of pre-cancerous polyps. Since then Rex has been an international leader in the movement to improve the quality of colonoscopy performance.[13][14]

References

  1. ^ "Douglas Rex, MD". Medicine.iupui.edu. 2009-12-11. Retrieved 2016-06-17.
  2. ^ History of endoscopy in the colon and rectum, chapter by Hirohumi Niwa and Christopher Williams in Colonoscopy: Principles and practice, Waye, Rex and Williams.
  3. ^ "30 Years Ago: He Helped Make Colonoscopy A Household Word". IU Health. Retrieved 2022-08-22.
  4. ^ "Douglas K. Rex: IU News Room: Indiana University". Newsinfo.iu.edu. 2009-03-20. Retrieved 2016-06-17.
  5. ^ "Honorary Award Recipients". ASGE.org. 2015-09-14. Retrieved 2016-06-17.
  6. ^ "2013 Crystal Awards Honorees" (PDF). Asge.org. Retrieved 2016-06-17.
  7. ^ "Berk/Fise Clinical Achievement Award" (PDF). S3.gi.org. Retrieved 2016-06-17.
  8. ^ "ACG Past Presidents | American College of Gastroenterology". Gi.org. Retrieved 2016-06-17.
  9. ^ "ACP: Awards & Masterships - ACP Announces New Masters and Awardees for 2014". Archived from the original on February 2, 2014. Retrieved January 22, 2014.
  10. ^ "West Noble School Corporation". Westnoble.k12.in.us. Retrieved 2016-06-17.
  11. ^ Porro, G.B. (2005) Book Review [Review of the book Colonoscopy—Principles and Practice by J.D. Waye, D.K. Rex, C.B. Williams] Digestive and Liver Disease, Volume 37, Issue 7, Page 545.
  12. ^ "Google Scholar". Scholar.google.com. Retrieved 2016-06-17.
  13. ^ "NEJM Journal Watch Editor : Douglas K. Rex, MD". Jwatch.org. Retrieved 2016-06-17.
  14. ^ Rex, D. K. (2006). Maximizing detection of adenomas and cancers during colonoscopy. The American Journal of Gastroenterology, 101(12), 2866-2877
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