Non-invasive pulse wave analysis for monitoring the cardiovascular effects of CO2 pneumoperitoneum during laparoscopic cholecystectomy--a prospective case-series study.

Background: Peritoneal insufflation results in hemodynamic changes during laparoscopic cholecystectomy. The aim of the present work is to test whether non-invasive applanation tonometry is suitable for reflecting these hemodynamic alterations.

Methods: 41 patients undergoing laparoscopic cholecystectomies were monitored using the SphygmoCor pulse wave analysing system.