Stroke Volume Variation Versus Central Venous Pressure Guidance for Reducing Perioperative Blood Loss During Open Liver Resection

Anesthesiologists will perform methods to achieve and maintain SVV at 13-20% during liver parenchymal transection (fluid restrictive phase). Central venous pressure monitoring will be concealed with drapes, and the room anesthesiologist will use SVV for guiding fluid management only during parenchymal transection phase. If SVV exceeds 20%, a balanced salt crystalloid will be administered in the minimal amount necessary to reduce the SVV to below 20%.