170 degrees wide-angle colonoscope: effect on efficiency and miss rates.

Background: Small polyps are routinely missed during colonoscopy even with careful examination.

Aim: To determine and compare endoscopic efficiency and polyp miss rate between a prototype 170 degrees wide-angle (WA) colonoscope and a standard (S) colonoscope.

Methods: Two consecutive same-day colonoscopies were performed in 50 patients with intact colons.

Propofol versus midazolam/fentanyl for outpatient colonoscopy: administration by nurses supervised by endoscopists.

Background & Aims: Propofol is under evaluation as a sedative for endoscopic procedures. We compared nurse-administered propofol to midazolam plus fentanyl for outpatient colonoscopy.

Methods: One hundred outpatients undergoing colonoscopy were randomized to receive propofol or midazolam plus fentanyl, administered by a registered nurse and supervised only by an endoscopist.

Nurse-administered propofol versus midazolam and meperidine for upper endoscopy in cirrhotic patients.

Objectives: Upper GI endoscopy is often performed in patients with chronic liver disease to screen for esophageal and gastric varices. Propofol is currently under evaluation as an alternative to the combination of midazolam and meperidine for sedation during endoscopic procedures. The purpose of this study was to compare nurse-administered propofol to midazolam and meperidine for sedation in patients with chronic liver disease undergoing diagnostic upper GI endoscopy.

Wide angle colonoscopy with a prototype instrument: impact on miss rates and efficiency as determined by back-to-back colonoscopies.

Objective: Polyps are missed during conventional colonoscopy, even with meticulous technique. The aim of this study was to investigate whether a prototype wide angle colonoscope is associated with a reduced miss rate for polyps.

Methods: Two studies were performed.

Wireless capsule endoscopy detects small bowel ulcers in patients with normal results from state of the art enteroclysis.

Background: Wireless capsule endoscopy (WCE) is a new technology for small bowel imaging.

Aim: To report our initial experience with sensitivity of high quality enteroclysis in patients with small bowel ulcers detected by WCE.

Methods: Medical records of all patients referred for WCE from December, 2001 to April, 2002 at our institution were reviewed.