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Usefulness of pediatric colonoscopes in adult colonoscopy
1St. Mark's Hospital for Diseases of the Rectum and Colon, London, England.
Insights
Pediatric colonoscopes offer a valuable solution for adult colonoscopy, successfully navigating difficult anatomies where standard instruments fail. This approach significantly reduces colonoscopy failure rates and can help patients avoid surgery.
Area of Science:
- Gastroenterology
- Medical Devices
Background:
- Standard adult colonoscopes may fail to navigate complex colonic anatomies.
- Conditions like strictures, stomas, diverticular disease, and adhesions can impede colonoscope passage.
Purpose of the Study:
- To evaluate the efficacy of small-diameter, extraflexible pediatric colonoscopes in adult colonoscopy.
- To determine if pediatric colonoscopes can improve success rates in cases where adult colonoscopes fail.
Main Methods:
- Retrospective analysis of adult colonoscopy procedures.
- Comparison of success rates between adult and pediatric colonoscopes in challenging cases.
- Documentation of reasons for failure with adult colonoscopes.
Main Results:
- Pediatric colonoscopes successfully passed the sigmoid colon in 92% (70/78) of cases where adult colonoscopes failed.
- Fifteen patients were potentially spared surgery due to successful colonoscopy with pediatric instruments.
- The overall colonoscopy failure rate was reduced to 2% with the use of pediatric colonoscopes when needed.
Conclusions:
- Small-diameter, extraflexible pediatric colonoscopes are highly effective in adult endoscopy for difficult passages.
- Availability of pediatric colonoscopes can significantly lower colonoscopy failure rates and potentially avoid surgery.
- Pediatric colonoscopes should be a standard tool in endoscopy units performing frequent colonoscopies for both pediatric and selected adult patients.
Abstract:
Use of small diameter, extraflexible pediatric colonoscopes has proved to be valuable in adult endoscopy practice, not only for passing strictures and stomas but also where either fixation due to diverticular disease or postoperative adhesions, or unavoidably painful looping made passage of adult colonoscopes impossible. In 70 of 78 (92%) of the cases where the adult colonoscope could not be passed through the sigmoid colon by an expert endoscopist, the pediatric colonoscope passed through, often very easily. Fifteen of these patients were considered to have been saved surgery by successful passage. The "failure" rate for all colonoscopy examinations was only 2%; this low failure rate was attributable to the use of pediatric instruments whenever passage through the sigmoid colon proved to be impossible with standard colonoscopes. In our opinion every unit performing frequent colonoscopies should have a pediatric colonoscope available for selected adult patients as well as for use in children.
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