Remote Ischemic Preconditioning in High Risk Cardiovascular Surgery Patients

The intervention will consist of 3 cycles of 5 minutes of upper limb ischemia. The RIPC stimulus will be performed using a blood pressure cuff placed on the upper arm inflated above systemic pressure to 200 mmHg for 5 minutes, then deflated for 5 minutes. Ischemia will be assured with the use of a saturation probe on the digit of the involved arm.

These patients are randomized to placebo, thus they will no undergo the RIPC stimulus.