Intraoperative hypotension and blood pressure variability are associated with postoperative complications in surgical patients. The investigators have developed a closed-loop vasopressor (CLV) controller that titrates norepinephrine to correct hypotension. After having tested the system in a small cohort series of patients undergoing major surgeries, the investigators aimed to test the feasibility of the CLV controller guided noninvasively and continuously with the ClearSight system (Edwards Lifesciences, USA) in three high risk patients undergoing renal transplant surgery
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Percentage of case time in hypotension
Timeframe: during surgery