"Restrictive" fluid management is usually the current standard practice for patients undergoing liver surgery. The general idea is to maintain a low central venous pressure in order to decrease blood loss and improve the quality of the surgical field. However, this strategy , considered as rather "restrictive", can be associated with patient's harm, mainly acute kidney injury. Today, Goal directed fluid therapy (GDFT) is a well accepted strategy to optimize fluid administration in patients undergoing major surgery which aimed to maintain normovolemia without being too liberal. The goal of this randomized controlled trial is to compare these two strategies on Urethral Perfusion index measured with a new IKORUS UP probe (Foley catheter made smarter with embedded photoplethysmographic sensing technology).
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Urethral Perfusion index
Timeframe: during surgery