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Carbon Dioxide Homeostasis During Laparoscopy

ABSTRACT: Arterial blood gases were monitored in ten patients undergoing laparoscopy for diagnostic or sterilization procedure. During constant volume of ventilation, mean arterial co2 tension rose approximately 5 torr following insufflation of the peritoneal cavity with carbon dioxide. Arterial pH changes correlated well with arterial Pco2 changes. There was no significant change of oxygen tension in these patients.