Positive End-expiratory Pressure-induced Increase in Central Venous Pressure as a Predictor of Fluid Responsiveness in Robot-assisted Laparoscopic Surgery

In urologic robotic surgery with steep Trendelenburg position, maintenance of cardiac preload and cardiac output is important for clinical prognosis. As a preload index, the predictability of central venous pressure, pulse pressure variation and stroke volume variations may be impaired due to the impaired hemodynamics that result from the effect of increased abdominal pressure and decreased venous return. Previous studies reported the positive end-expiratory pressure (PEEP)-induced increase in central venous pressure (CVP) could be a accurate predictor of fluid responsiveness in cardiac surgical patients. Therefore, the authors attempt to evaluate the predictability of PEEP-induced increase in CVP as well as stroke volume variation in urologic robotic surgery with Steep Trendelenburg position.

Inclusion criteria

• Adult patient undergoing robot-assisted laparoscopic radical prostatectomy or cystectomy.
• American Society of Anesthesiologist Physical Status Classification of 1, 2 or 3.

Exclusion criteria

• Medical history of arrhythmia or new-onset arrhythmia after anesthesia induction.
• Valvular or ischemic heart disease or left ventricular ejection fraction less than 40%.
• Any significant pulmonary disease or history of chronic obstructive pulmonary disease
• End-stage renal disease or preoperative creatinine > 1.4 mg/dl