Comparison of electrical current and ultrasonic device for incision of the septum of the pharyngoesophageal diverticulum in a pig model.

作者信息

Hondo Fábio Yuji, Giordano-Nappi José Humberto, Pessorrusso Fernanda Cristina Simões, Franco Matheus Cavalcante, Neves Carla Zanelatto, Cecconello Ivan, Sakai Paulo, Maluf-Filho Fauze

机构信息

Gastrointestinal Endoscopy Unit, Department of Gastroenterology, Medical School of University of São Paulo, São Paulo, Brazil.

Gastrointestinal Surgery Division, Department of Gastroenterology, Medical School of University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, São Paulo, SP, 05403-000, Brazil.

出版信息

Surg Endosc. 2015 Nov;29(11):3409-13. doi: 10.1007/s00464-015-4090-4. Epub 2015 Feb 11.

DOI:10.1007/s00464-015-4090-4

PMID:25669640

Abstract

BACKGROUND

Complications of endoscopic treatment of pharyngoesophageal diverticulum (PED) such as bleeding and perforation occur in up to 15 % of cases. Our objective was to compare incision of the PED septum using the ultrasonic device (group H) with incision using electrical current (group M) in a pig model.

METHODS

Twenty domestic pigs were divided into groups H and M. The incision of the PED septum was performed using the ultrasonic device or using electrical current, respectively. The procedural time, complication rate, length of the border of the incised septum, and thermal tissue damage were compared between groups.

RESULTS

Mean time to divide the septum and total procedure time were significantly shorter in group H. Mean length of the border of the incised septum was significantly higher in group H. The lateral thermal spread caused by electrical current (group M) was more intense. Hemorrhage was exclusively observed in group M.