Endoscopy 2013; 45(05): 335-341
DOI: 10.1055/s-0032-1326199
Original article
© Georg Thieme Verlag KG Stuttgart · New York

A prospective, randomized, double-blind, controlled trial on the efficacy of carbon dioxide insufflation in gastric endoscopic submucosal dissection

Y. Maeda
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
D. Hirasawa
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
N. Fujita
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
T. Obana
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
T. Sugawara
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
T. Ohira
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
Y. Harada
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
T. Yamagata
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
K. Suzuki
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
Y. Koike
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
J. Kusaka
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
M. Tanaka
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
,
Y. Noda
Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
› Author Affiliations
Further Information

Publication History

submitted 14 August 2012

accepted after revision 20 November 2012

Publication Date:
06 March 2013 (online)

Preview

Background and study aims: Carbon dioxide (CO2) insufflation is expected to be safe and effective in endoscopic submucosal dissection (ESD) as well as in other endoscopic procedures. The present study aimed to clarify the usefulness and safety of CO2 insufflation in gastric ESD.

Patients and methods: A total of 102 consecutive patients were randomly assigned to CO2 insufflation (CO2 group, n = 54) or air insufflation (Air group, n = 48). Abdominal pain and distension were chronologically recorded on a 100-mm visual analog scale (VAS). The volume of residual gas in the digestive tract was measured by computed tomography performed immediately after ESD.

Results: Abdominal pain on a 100-mm VAS in the CO2 vs. Air group was 4 vs. 3 immediately after ESD, 4 vs. 4 one hour after the procedure, 3 vs. 3 three hours after the procedure, and 1 vs. 4 the next morning, showing no difference between the groups. In addition, there was no difference in abdominal distension on the 100-mm VAS over the time course of the study. The volume of residual gas in the digestive tract in the CO2 group was significantly smaller than that in the Air group (643 mL vs. 1037 mL, P < 0.001). The dose of sedative drugs did not differ between the groups. Neither the incidences of complications nor clinical courses differed between the groups.

Conclusions: Compared with air insufflation, CO2 insufflation during gastric ESD significantly reduced the volume of residual gas in the digestive tract but not the VAS score of abdominal pain and distension.