Norepinephrine in the Management of General Anesthesia-Induced Arterial Hypotension in Chronic Heart Failure Patients

"During the surgery, the channels and monitoring equipment will be set up according to the usual procedure in the vascular surgery department. As part of the research, the Starling™ SV Sebac® electrodes will be installed (to measure cardiac flow, cardiac index (CI), stroke volume (VES), variations in stroke volume (VVES), and peripheral resistors (TPRI)).~Once the equipment is in place, anesthetic induction will be carried out according to the usual protocol with curarization and mechanical ventilation.~If the appearance of arterial hypotension is noted after anesthetic induction and mechanical ventilation, the patient will be definitively included in the study. As recommended, he will receive norepinephrine to treat hypotension.~The measurements from the monitoring will be collected at 3, 5, and 10 min after the administration of norepinephrine.~10 days after admission to the operating room, hospitalization data will be collected."