Abstract
Background
Intraoperative endoscopy (IOE) is a useful adjunct during laparoscopic gastrointestinal (GI) surgery. However, one potential hazard of IOE is a prolonged bowel distension due to insufflated air, which may cause obstructed surgical exposure and increased postoperative abdominal pain. Recently, carbon dioxide (CO2), with its rapid absorptive nature, has been proven effective to minimize prolonged bowel distension in ambulatory/intraoperative colonoscopy. The objectives were to assess the feasibility, safety, and efficacy of CO2-insufflating upper GI IOE during laparoscopic surgery.
Methods
A historical comparison study was performed on the initial ten consecutive patients who underwent CO2-insufflating upper GI IOE (CO2-IOE) during laparoscopic surgery. The control group consisted of the past 12 consecutive patients who underwent conventional air-insufflating upper GI IOE (air-IOE) during laparoscopic surgery. The following parameters were compared between the two groups: (1) patient demographics; (2) feasibility (% completion of IOE); (3) safety (complications related to IOE, impacts on cardiopulmonary status, including systemic blood pressure, heart rate, and end-tidal CO2); (4) efficacy (postoperative residual intestinal gas, time to resume oral intake, and bowel movement). The amounts of post-IOE residual intestinal gas were evaluated and classified on the immediate postoperative abdominal radiographs in a blinded manner.
Results
Patient demographics were comparable between the two groups. IOE was completed in both groups without complications. Adverse effects on cardiopulmonary status were not observed during simultaneous intraperitoneal and intraluminal CO2 insufflation. In the air-IOE group, one patient was converted to open surgery because of inadequate surgical exposure from prolonged distension of the downstream bowel. The patients in the CO2-IOE group had significantly lower grade of postoperative bowel distension than the control group. Postoperative oral intake was resumed earlier in the CO2-IOE group.
Conclusion
CO2-insufflating upper GI IOE during laparoscopic surgery is feasible, safe, and has a practical advantage in minimizing post-IOE bowel distension compared with conventional air-insufflating upper GI IOE.
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Acknowledgments
Part of this study was presented at the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) at Pennsylvania Convention Center, Philadelphia, Pennsylvania, April 2008. The authors thank Kenji Noda and Masakazu Gotanda (Olympus Medical Systems, Tokyo, Japan) for technical assistance.
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Souma, Y., Nakajima, K., Takahashi, T. et al. The role of intraoperative carbon dioxide insufflating upper gastrointestinal endoscopy during laparoscopic surgery. Surg Endosc 23, 2279–2285 (2009). https://doi.org/10.1007/s00464-008-0309-y
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DOI: https://doi.org/10.1007/s00464-008-0309-y