Investigators evaluate the effect of patient position (Trendelenburg and reverse Trendelenburg) on arterial, end-tidal and transcutaneous carbon dioxide partial pressure in patients undergoing laparoscopic surgery. Arterial carbon dioxide partial pressure is assessed intermittently before, during, and after pneumoperitoneum. End-tidal and transcutaneous carbon dioxide partial pressure are continuously monitored.
Investigators evaluate the effect of patient position (Trendelenburg and reverse Trendelenburg) on arterial, end-tidal and transcutaneous carbon dioxide partial pressure in patients undergoing laparoscopic surgery.