[Preoperative evaluation of coronary circulation]

Area of Science:

• Cardiology
• Vascular Surgery
• Anesthesiology

Context:

• Assessing coronary circulation preoperatively is challenging due to controversial studies and imperfect diagnostic tests.
• Identifying patients with high perioperative cardiac event risk is essential for treatment intensification or myocardial revascularization.

Purpose:

• To define a strategic approach for coronary circulation assessment in patients undergoing surgery.
• To identify patients at high risk for perioperative cardiac events.

Summary:

• Initial assessment includes history, physical exam, and basic tests (ECG, chest X-ray).
• For patients with risk factors (Goldman criteria, diabetes, smoking, hypertension) or coronary artery disease, further evaluation is needed.
• Tests like Holter monitoring, stress testing, dobutamine stress echocardiography, and dipyridamole-thallium scintigraphy aid risk stratification.
• Coronary angiography may be indicated for patients with significant abnormalities to consider myocardial revascularization before surgery.

Impact:

• Facilitates informed decisions regarding medical treatment intensification or myocardial revascularization.
• Aims to reduce perioperative cardiac events and improve patient outcomes in high-risk surgical candidates.
• Provides a framework for optimizing preoperative cardiac risk assessment and management strategies.