Journal article
In vivo evaluation of monopolar versus bipolar electrosurgical polypectomy snares
The American journal of gastroenterology, Vol.85(10), pp.1386-1390
10/1990
PMID: 2220733
Abstract
The energy required and tissue damage in bipolar and monopolar polypectomy snares were compared in a canine model. The bipolar snare required an average of 34 joules of energy, whereas the monopolar snare required 228 joules to cut the same diameter of gastric mucosa tended into a polypoid structure (p = 0.0005). The reduced energy delivered to the tissue from the bipolar procedure resulted in only 32% average depth of damage to the underlying gastric wall, whereas the monopolar procedure caused an average 69% (p = 0.001). Surgically created polyps required 247 joules and 69 joules for corresponding monopolar and bipolar polypectomy (p = 0.001). The decreased energy required and the correspondingly reduced damage caused to the underlying bowel wall by the bipolar snare should reduce the incidence of perforation and post-polypectomy syndrome. The bipolar snare completes a local circuit about the snare, eliminating the return electrode and, consequently, the possibility of any return electrode burns. The bipolar snare thus provides an added safety margin during polypectomy.
Details
- Title: Subtitle
- In vivo evaluation of monopolar versus bipolar electrosurgical polypectomy snares
- Creators
- R D Tucker - Department of Pathology, University of Iowa Hospitals & Clinics, Iowa CityC E PlatzC E SievertJ A VennesS E Silvis
- Resource Type
- Journal article
- Publication Details
- The American journal of gastroenterology, Vol.85(10), pp.1386-1390
- Publisher
- United States
- PMID
- 2220733
- ISSN
- 0002-9270
- eISSN
- 1572-0241
- Language
- English
- Date published
- 10/1990
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Pathology
- Record Identifier
- 9984046920602771
Metrics
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