The surgical procedure most commonly associated with postoperative acute kidney injury is:

The procedures most commonly associated with AKI are 1. Cardiac surgery with cardiopulmonary bypass 2. Vascular procedures with aoic cross clamping 3. Intraperitoneal procedures. Severe AKI requiring dialysis occurs in approximately 1% of cardiac and vascular surgery procedures. Ref: Harrison-E-18, P-2295.