How to avoid cardiac ischemic events associated with aortic surgery.

Area of Science:

• Cardiology
• Vascular Surgery
• Perioperative Medicine

Background:

• Coronary artery disease (CAD) is common in patients needing vascular surgery, but consensus on preventing perioperative cardiac ischemic events is lacking.
• Adverse cardiac outcomes occur frequently after infrainguinal operations, similar to aortic procedures, making findings relevant across vascular surgery types.

Purpose of the Study:

• To analyze adverse outcomes associated with preoperative cardiac evaluation and intervention in vascular surgery patients.
• To review current strategies for preoperative cardiac testing and management of CAD in vascular surgery.

Main Methods:

• Retrospective analysis of 153 patients undergoing vascular procedures at the Denver Department of Veterans Affairs Medical Center.
• Review of existing literature and ongoing trials (e.g., CARP trial) on cardiac evaluation and management strategies.

Main Results:

• Of 42 patients with extended cardiac evaluations, 16 (38%) experienced untoward events.
• Extensive cardiac evaluation can lead to morbidity, delays, and patient refusal of necessary vascular surgery.
• Perioperative beta-blocker therapy has been shown to reduce adverse cardiac outcomes by 55% in vascular patients with CAD.

Conclusions:

• The risks of preoperative cardiac evaluation and intervention must be weighed against potential benefits, considering the primary surgical indication and local complication rates.
• Perioperative beta-adrenergic blockade is a proven strategy to mitigate cardiac risk in vascular surgery patients with CAD.
• Further research, like the CARP trial, is needed to compare invasive cardiac intervention versus best medical care for these patients.