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Sequential changes of gastric hyperplastic polyps following endoscopic ligation.
1Department of Internal Medicine, Kaohsiung Veterans General Hospital, Taiwan, ROC.
Zhonghua Yi Xue Za Zhi = Chinese Medical Journal; Free China Ed
|February 21, 2002
Summary
Endoscopic detachable snare ligation effectively induces avascular necrosis in most gastric hyperplastic polyps. Cyanotic change during the procedure predicts successful outcomes for these gastrointestinal polyps.
Area of Science:
- Gastroenterology
- Endoscopic procedures
- Surgical pathology
Background:
- Endoscopic ligation is widely used for esophageal and gastric varices.
- The efficacy of ligation in inducing avascular necrosis in gastrointestinal polyps is not well-established.
- Gastric hyperplastic polyps are common lesions requiring treatment considerations.
Purpose of the Study:
- To investigate sequential changes in gastric hyperplastic polyps after endoscopic detachable snare ligation.
- To determine the potential for inducing avascular necrosis in these polyps via ligation.
Main Methods:
- Eleven patients underwent endoscopic detachable snare ligation for eighteen gastric hyperplastic polyps.
- Immediate post-ligation observation and biopsies were performed.
- Follow-up endoscopies were conducted at 14 days to assess polyp outcomes.
Main Results:
- Immediate polyp congestion (94%) and cyanotic changes (89%) were observed post-ligation.
- Pathology revealed severe venous congestion in the lamina propria.
- Avascular necrosis occurred in 89% of polyps by 2-week follow-up; cyanotic change predicted this outcome.
- No complications were reported.
Conclusions:
- Endoscopic detachable snare ligation is effective in inducing avascular necrosis in most gastric hyperplastic polyps.
- Initial cyanotic changes are a key predictor of successful ligation outcomes.
- Further research is warranted for applying this technique to various gastrointestinal polyps.