Indications for myocardial revascularization before endovascular aortic repair

Area of Science:

• Cardiology
• Vascular Surgery
• Medical Diagnostics

Background:

• Abdominal aortic aneurysm (AAA) repair, particularly endovascular aortic repair (EVAR), carries significant risks of coronary morbidity and mortality.
• A thorough understanding of coronary risk in EVAR patients is essential for optimizing perioperative management and long-term outcomes.

Purpose of the Study:

• To emphasize the importance of pre-operative cardiac evaluation for patients undergoing EVAR.
• To outline a risk stratification strategy for identifying patients who may benefit from further cardiac investigations.
• To guide clinical decision-making regarding coronary revascularization prior to EVAR.

Main Methods:

• Clinical assessment including physical examination, basic laboratory tests, and electrocardiogram (ECG) for initial risk stratification.
• Further diagnostic testing for intermediate-risk patients, including left ventricular function assessment, stress testing (exercise or pharmacological), ambulatory ECG monitoring, and coronary angiography.
• Consideration of advanced imaging like exercise echocardiography or myocardial perfusion imaging for select patients.

Main Results:

• Low-risk patients typically require no further cardiac evaluation.
• High-risk patients generally proceed to coronary angiography.
• Intermediate-risk patients, the largest subgroup, necessitate a tailored approach with additional non-invasive or invasive testing.

Conclusions:

• Comprehensive cardiac assessment is mandatory for EVAR candidates to mitigate perioperative cardiac complications.
• Prognostic high-risk coronary anatomy identified in EVAR patients may warrant prior coronary revascularization to improve long-term outcomes.
• Integrating cardiac risk evaluation into the EVAR pathway can reduce associated morbidity and mortality.