Journal
DIGESTIVE SURGERY
Volume 21, Issue 2, Pages 95-105Publisher
KARGER
DOI: 10.1159/000077038
Keywords
carbon dioxide insufflation; pneumoperitoneum; laparoscopic pathophysiological changes
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Background: Although providing excellent outcome results, laparoscopy also induces particular pathophysiological changes in response to pneumoperitoneum. Knowledge of the pathophysiology of a CO2 pneumoperitoneum can help minimize complications while profiting from the benefits of laparoscopic surgery without concerns about its safety. Methods: A review of articles on the pathophysiological changes and complications of carbon dioxide pneumoperitoneum as well as prevention and treatment of these complications was performed using the Medline database. Results: The main pathophysiological changes during CO2 pneumoperitoneum refer to the cardiovascular system and are mainly correlated with the amount of intra-abdominal pressure in combination with the patient's position on the operating table. These changes are well tolerated even in older and more debilitated patients, and except for a slight increase in the incidence of cardiac arrhythmias, no other significant cardiovascular complications occur. Although there are important pulmonary pathophysiological changes, hypercarbia, hypoxemia and barotraumas, they would develop rarely since effective ventilation monitoring and techniques are applied. The alteration in splanchnic perfusion is proportional with the increase in intra-abdominal pressure and duration of pneumoperitoneum. Conclusion: A moderate-to-low intra-abdominal pressure (<12 mm Hg) can help limit the extent of the pathophysiological changes since consecutive organ dysfunctions are minimal, transient and do not influence the outcome. Copyright (C) 2004 S. Karger AG, Basel.
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