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Colonoscopy and polypectomy with a side-viewing endoscope.

E Frimberger1, S von Delius, T Rösch

  • 1Department of Internal Medicine II, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany. Eckart.Frimberger@lrz.tu-muenchen.de

Endoscopy
|March 21, 2007
PubMed
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Side-viewing duodenoscopes offer a safe and effective solution for removing difficult colorectal polyps. This endoscopic approach successfully resected polyps that were inaccessible with conventional forward-viewing colonoscopes.

Area of Science:

  • Gastroenterology
  • Endoscopic Surgery

Background:

  • Colorectal polyps located behind mucosal folds or bowel bends present challenges for conventional forward-viewing colonoscopy.
  • Incomplete polypectomy or surgical intervention may be required for these difficult-to-access polyps.

Purpose of the Study:

  • To evaluate the safety and efficacy of using side-viewing duodenoscopes for polypectomy of challenging colorectal polyps.
  • To determine if this method can avoid incomplete resection or surgery.

Main Methods:

  • A prospective study involving 15 patients with previously unsuccessful forward-viewing colonoscopic polypectomy attempts.
  • Polypectomy was performed using a side-viewing duodenoscope, with slight tip bending to achieve an optimal view.
  • Patients had a mean age of 63.7 years, and procedures were conducted between April 2000 and August 2003.

Related Experiment Videos

Main Results:

  • Complete macroscopic removal of colorectal polyps was achieved in 11 out of 15 patients (73.3%).
  • Complete removal was not possible for one polyp near the ileocecal valve, one large flat rectal adenoma, one recurrent rectal polyp, and another ileocecal valve polyp.
  • No procedure-related complications were observed, and endoscopic follow-up in seven patients showed no evidence of recurrence after a mean of 27 months.

Conclusions:

  • Polypectomy using a side-viewing duodenoscope is a safe and effective therapeutic option.
  • This technique is valuable for managing colorectal polyps that are not adequately accessible with standard forward-viewing colonoscopes.