Clinical trials

The goal of this randomized clinical trial is to compare different types of advanced hemodynamic monitoring in patients undergoing major abdominal surgery. Participants undergoing major abdominal surgery will receive anesthesia with two different types of hemodynamic monitoring - group A will receive arterial pressure cardiac output algorithm with the FloTrac sensor and group B will receive hemodynamic monitoring with the Hypotension Prediction Index. The main question the study aims to answer is: • will the hypotension prediction index algorithm reduce the rate of hypotension in comparison to arterial pressure cardiac output algorithm.

The aim of the current study is to evaluate the effects of the Hypotension Prediction Index (HPI) on the degree of intraoperative hypotension in patients undergoing free flap surgery. The hypothesis is that implementation of the HPI algorithm will reduce the time-weighted average (TWA) intraoperative hypotension below a threshold of 65 mmHg (16), and to reveal the relationship between the episodes of hypotension and free flap viability and function.