Online Articles: Technical ReportsUsing a Video-Laparoscope for Intraoperative Colonoscopy: An Experimental Study on Intraluminal Temperature Values and Tissue DamageŞimşek, Turgay MD*; Büyükgebiz, Oğuzhan MD*; Şahin, Deniz PhD†; Güneş, Abdullah MD*; Gürbüz, Yeşim MD‡Author Information Departments of *General Surgery †Physiology ‡Pathology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey This study is conducted as dissertation thesis in the Department of General Surgery of the School of Medicine of Kocaeli University and approved by the Committee of Ethics. Supported by Kocaeli University Scientific Research Project Coordination Unit. The authors declare no conflicts of interest. Reprints: Turgay Şimşek, MD, Karaosman Mah, Bezirci Sok, No:30 Adapazari, Sakarya 54100, Turkey (e-mail: firstname.lastname@example.org). Surgical Laparoscopy, Endoscopy & Percutaneous Techniques: August 2018 - Volume 28 - Issue 4 - p e78-e82 doi: 10.1097/SLE.0000000000000538 Buy Metrics Abstract Laparoscopy systems possess remarkable heat production. Video-laparoscopy was used for colonoscopy intraoperatively in rabbits. Rod lens type laparoscopes 5 and 10 mm in diameter connected with 175 and 300-W xenon light sources were used in combination. Physiological parameters including blood pressure, pulse, oxygen saturations, and luminal temperatures were investigated during 20 minutes of colonoscopy. Thermal damage scores were obtained by histopathologic analysis of the intestinal wall. The changes were categorized as physiological and structural. Damage scores were not different when 175-W light source was used with 5- and 10-mm laparoscopes. Intraluminal heat values most increased with 300 W plus 10-mm laparoscope and caused significant increase in damage scores. Structural damage indicating tissue necrosis was not observed with any of the combination in all groups. Video-laparoscopy systems did not cause significant tissue damage when used at low and moderate levels of xenon light source in the rabbit bowel intraoperatively. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.