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Research & Articles

CRH O’Regan System Research & Articles

Read published research on the CRH O’Regan System. Click on a link to open as a PDF.

Iain G.M. Cleator and Maria M. Cleator. Banding Hemorrhoids using the O’Regan Disposable Bander. Business Briefing: U.S. Gastroenterology Review, April 2005.

Robert A. Ganz, MD, FASGE. The Evaluation and Treatment of Hemorrhoids: A Guide for the Gastroenterologist. Clinical Gastroenterology and Hepatology, June 2013.

Mitchel Guttenplan, MD, FACS and Robert A Ganz, MD, FASGE Hemorrhoids – Office Management and Review for Gastroenterologists,, December 2011

Iain M. Cleator, Mihaela M. Cleator, David Johnson, Bergein F. Overholt Eight Years of Hemorrhoid Banding Experience with the O’Regan Ligator

Neal Osborn, MD, MSc, Hemorrhoid Treatment Using Rubber Band LigationThe Journal of Medicine, November/December 2009

Shaun Gerrits, Striking a BalanceEndoEconomics, Summer 2018 – click here for more

David A. Johnson, MD, FACG, FASGE Evolving Perspectives for Survival of Gastroenterology Practice: A Business Plan Assessment for Improved Economic Success EndoEconomics, August 2011

Harry Sarles Jr., David A. Johnson, Klaus Mergener Gastroenterology Practice 2016 and Beyond:Survival Guide for Ancillary Income EndoEconomics, Spring 2016

Jack A. Di Palma, MD, FACG Introducing Comprehensive Non-Surgical Anorectal Care to the Gastroenterology Fellowship Training Curriculum: The University of Southern Alabama Experience Practical Gastroenterology, May 2011

Iain M. Cleator, Mihaela M. Cleator The Long Term Results of Hemorrhoid Banding Using The CRH O’Regan Disposable Suction Ligator

Mitchel Guttenplan, MD, FACS, David A. Johnson, MD, FACP, FACG, FASGE, Bergein Overholt, MD, MACG, FACP, FASGE Hemorrhoid Care Rubber Band Ligation Using the CRH O’Regan System™ EndoEconomics, Winter 2010

Neal Osborn, MD, MSc Hemorrhoid Treatment: The Gastroenterologist Perspective. A Year in Review.

Neal Osborn, MD, MSc, Jessica Higgins-Walzer, Steven Morris, MD. Hemorrhoid Treatment in the Outpatient Gastroenterology Practice Using the O’Regan Disposable Bander is Safe and Effective

Harry E. Sarles, Jr., MD, FACG Increase Your EASC and Practice Bottom Line by Providing Hemorrhoidal Treatment

Kim Shealy Introducing Hemorrhoid Treatment to a GI Practice EndoEconomics, November, 2013

Jeff Dew Marketing a procedure: A look at the effects of a hemorrhoid treatment advertising campaign on practice revenue EndoEconomics, November, 2012

Mitchel Guttenplan, MD, FACS Anal Fissures: Diagnosis and Management for the Gastroenterologist Gastroenterology & Endoscopy News, October 2015

Mitchel Guttenplan, MD, FACS Anorectal Topicals – Whitepaper. January 2015

Kelly SM, Sanowski RA, Foutch PG et al. A Prospective Comparison of Anoscopy and Fiberendoscopy in Detecting Anal Lesions. Journal of Clinical Gastroenterology, Vol. 8, No. 6, 1989

Gordon V. Ohning, MD, PhD, Gustavo A. Machicado, MD, Dennis M. Jensen, MD Definitive Therapy for Internal Hemorrhoids—New Opportunities and Options

Dimitrios Paikos, et al. “Banding Hemorrhoids Using the O’ Regan Disposable Bander. Single Center Experience. ”

Robert A. Ganz, MD, FASGE Healthcare “Reform” ‐‐ A Potential Crisis For Practitioners!

Christina Frangou. Which Hemorrhoid Therapy? Expert Reviews Options Gastroenterology and Endoscopy News, May 2009 & General Surgery News, April 2009.

Cheetham MJ, Cohen CR, Kamm MA et al. A randomized, controlled trial of diathermy hemorrhoidectomy vs. stapled hemorrhoidectomy in an intended day-care setting with longer-term follow-up. Dis Colon Rectum. 2003 Apr; 46(4):491-7.

Cheetham MJ, Mortensen NJ, Nystrom PO et al. Persistent pain and fecal urgency after stapled haemorrhoidectomy. Lancet. 2000 Aug 26; 356:730-3.

Sutherland LM, Burchard AK, Matsuda K et al. A systematic review of stapled hemorrhoidectomy. Arch Surg. 2002 Dec; 137(12):1395-406; discussion 1407.

Aliberti LC. The flexible sigmoidoscope as a potential vector of infectious disease, including suggestions for decontamination of the flexible sigmoidoscope. Yale J Biol Med. 1987 Jan-Feb; 60(1):19-26.

McLaws ML, Taylor PC. The Hospital Infection Standardised Surveillance (HISS) programme: analysis of a two-year pilot. J Hosp Infect. 2003 Apr; 53(4):259-67.

Hemorrhoids & Fissure-in-Ano. American Society of Colon & Rectal Surgeons.

Other Topics

Anticoagulant Guidelines

Acosta, Ruben D. et al. The management of antithrombotic agents for patients undergoing GI endoscopy. Gastrointestinal Endoscopy, Volume 83, Issue 1 ,3-16

R.S. Nelson and A.G. Thorson Risk of bleeding following hemorrhoidal banding in patients on antithrombotic therapy.  Gastroentérologie Clinique et Biologique (2009) 33, 463-465.

GI Anesthesia

Staff. GI Anesthesia Partnerships and the Changing Landscape of GI Anesthesia. Becker’s ASC Review (November 2017).

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