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Diaphragm Function Is Not Impaired by Pneumoperitoneum After Laparoscopy
Dan Benhamou, MD;
Gérald Simonneau, MD;
Thierry Poynard, MD;
Michael Goldman, MD, ScD;
Jean-Claude Chaput, MD;
Pierre Duroux, MD
Arch Surg. 1993;128(4):430-432.
Abstract
• Open cholecystectomy is known to induce a major restrictive respiratory syndrome. These respiratory disturbances, although of reduced magnitude, still persist after laparoscopic cholecystectomy. To determine the role of pneumoperitoneum per se in the respiratory dysfunction observed after this procedure, seven patients were studied before and 2 hours after laparoscopy. This diagnostic procedure avoids the upper midline incision and the surgical injury of cholecystectomy. Ventilatory performance and diaphragm function were assessed as follows: (1) during quiet tidal breathing by obtaining measurements of esophageal, gastric, and transdiaphragmatic pressures; determining the ratio of gastric pressures to esophageal pressures; and abdomen-rib cage partitioning of tidal volume obtained from two differential linear transformers and (2) during maximal respiratory efforts by obtaining measurements of vital capacity and maximal transdiaphragmatic pressure during Müller's maneuver and a sniff test. Although a large residual pneumoperitoneum (assessed as the maximal height of the suprahepatic space: Hmax = 30.3±7.8 mm) was observed after laparoscopy, we did not find any change suggestive of diaphragm dysfunction. We thus conclude that postoperative residual pneumoperitoneum per se is unable to explain the diaphragm dysfunction observed after open or laparoscopic cholecystectomy.
(Arch Surg. 1993;128:430-432)
Author Affiliations
From the Department of Anesthesiology (Dr Benhamou), Divisions of Pulmonology (Drs Simonneau and Duroux) and Gastroenterology (Drs Poynard and Chaput), and the Laboratory of Physiology (Dr Goldman), Université Paris-Sud, Hôpital Antoine-Béclère, Clamart, France. Dr Goldman is with the Department of Medicine and Neurology at the Medical College of Pennsylvania, Philadelphia, and is currently visiting associate professor at the Laboratory of Physiology, Hôpital Antoine-Béclère, Clamart Cedex, France.
Footnotes
Accepted for publication July 25, 1992.
Reprint requests to Department of Anesthesiology, Hôpital Antoine-Béclère, 157, rue de la Porte-de-Trivaux, Clamart Cedex, France 92141 (Dr Benhamou).
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