Preoperative Cardiac Risk Management

Abstract

Numerous strategies exist for preoperative cardiac testing before patients undergo vascular operations. Potential adverse effects of evaluation and cardiac intervention should be considered before undertaking screening studies. We recently analyzed the adverse outcomes of preoperative cardiac evaluation and intervention before vascular operations in patients treated at the Denver Department of Veterans Affairs Medical Center. During the 12 month study period, 161 patients were scheduled to undergo major vascular operations; 153 patients came to operation. The decision to pursue a cardiac evaluation was made without a defined protocol. Forty two men. aged 68±9 years underwent comprehensive preoperative cardiac evaluations Sixteen (38%) patients had untoward events related to cardiac evaluation, Including eight patients (19%) who refused vascular surgery after cardiac screening and/or intervention. Other complications included prosthetic graft infection, pseudoaneurysms (2), sternal wound infections (2) amputations (2), renal failure and brain anoxia. Extensive cardiac evaluation prior to vascular operations can result in morbidity, delays, and refusal to undergo vascular surgery. The underlying indication for vascular operations and the local iatrogenic cardiac complication rates must be considered before ordering special studies.