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Minerva Medica 2011 August;102(4):261-9

Copyright © 2011 EDIZIONI MINERVA MEDICA

language: English

Carbon dioxide insufflation versus air insufflation during endoscopic retrograde cholangiopancreatography under general anesthesia

Luigiano C. 1, Ferrara F. 1, Pellicano R. 2, Fabbri C. 1, Cennamo V. 3, Bassi M. 1, Ghersi S. 1, Billi P. 1, Polifemo A. M. 1, Festa C. 4, Cerchiari E. L. 4, Morace C. 5, Consolo P. 5, Alibrandi A. 6, D’Imperio N. 1

1 Unit of Gastroenterology and Digestive Endoscopy, AUSL Bologna Bellaria-Maggiore Hospital, Bologna, Italy; 2 Department of Gastro-Hepatology, Molinette Hospital, Turin, Italy; 3 Department of Internal Medicine and Gastroenterology, University of Bologna, Bologna, Italy; 4 Unit of Anesthesia and Intensive Care, Maggiore Hospital, Bologna, Italy; 5 Department of Medicine and Pharmacology, University of Messina, Messina, Italy; 6 Department of Statistics, University of Messina, Messina, Italy


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AIM: The aim of this paper was to evaluate the effect of carbon dioxide (CO2) vs. air insufflation on post-endoscopic retrograde cholangiopancreatography (ERCP) abdominal pain and distension. In addition, we investigated the changes in the partial pressure of end-tidal CO2 (PetCO2) and the partial pressure of arterial CO2 (PaCO2).
METHODS: From October 2009 to January 2010, all patients admitted to our centre for ERCP were screened for enrollment; the patients recruited were randomised to CO2 or air insufflation. The patients were asked to rate their abdominal pain intensity and distension using a 100-mm Visual Analogue Scale (VAS) before, in the recovery room and at 1, 3, 6 and 24 hours after the ERCP. All anesthesiological and endoscopic details and complications were evaluated.
RESULTS: We included 76 patients, 39 in the Air group and 37 in the CO2 group. The groups were similar for age, gender, indications and duration of the procedure. Post-procedure mean values of pain (in the recovery room and at 1, 3 and 6 hours) and distension (at recovery room, and at 1 and 3 hours) according to the VAS were significantly reduced in the CO2 group as compared to the Air group. At baseline, the PetCO2 values were similar between the two groups while, during the ERCP, they increased significantly in CO2 group as compared to the Air group; these values were reduced by simply increasing the ventilation.
CONCLUSION:CO2 insufflation during ERCP significantly reduces post-procedural abdominal pain and distension. Increased PetCO2 and PaCO2 values remained within acceptable or readily controllable ranges.

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carmeluigiano@libero.it