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Histologyassessmentofbipolarcoagulationandargonplasmacoagulationon digestivetract

World Journal of Gastrointestinal Endoscopy 2014年第7期6卷 304-311页

作者： Garrido T baba er Wodak S Sakai P Cecconello I Maluf-Filho F Teresa Garrido Elisa R Baba Stephanie Wodak Paulo Sakai Ivan Cecconello Fauze Maluf-Filho Endoscopy Division and Gastrointestinal Surgery Division Hospital das Clinicas of the University of S?o Paulo S?o Paulo SP 05403-000 Brazil

AIM: To analyze the effect of bipolar electrocoagula-tion and argon plasma coagulation on fresh specimens of gastrointestinal tract. METHODS: An experimental evaluation was performed at Hospital das Clinicas of the University of So Paulo, on 31 fresh surgical specimens using argon plasma coagulation and bipolar electrocoagulation at different time intervals. The depth of tissue damage was his-topathologically analyzed by single senior pathologist unaware of the coagulation method and power setting applied. To analyze the results, the mucosa was divided in superficial mucosa (epithelial layer of the esophagus and superficial portion of the glandular layer of the stomach and colon) intermediate mucosa (until thelamina propria of the esophagus and until the bottom of the glandular layer of the stomach and colon) and muscularis mucosa. Necrosis involvement of the layers was compared in several combinations of power and time interval. RESULTS: Involvement of the intermediate mucosa of the stomach and of the muscularis mucosa of the three organs was more frequent when higher amounts of en-ergy were used with argon plasma. In the esophagus and in the colon, injury of the intermediate mucosa was frequent, even when small amounts of energy were used. The use of bipolar electrocoagulation resulted in more frequent involvement of the intermediate mucosa and of the muscularis mucosa of the esophagus and of the colon when higher amounts of energy were used. In the stomach, these involvements were rare. The risk of injury of the muscularis propria was significant only in the colon when argon plasma coagulation was ***: Tissue damage after argon plasma coagulation is deeper than bipolar electrocoagulation. Both of them depend on the amount of energy used.

关键词： Argon plasma coagulation Electrocoagula-tion Gastrointestinal endoscopy Surgical procedures Endoscopic gastrointestinal Mucous membrane/injuries

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