[Coronary bed in aneurysm of the left ventricle]

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Cardiac Surgery

Background:

• Post-infarction left ventricular aneurysm is a serious complication of myocardial infarction.
• Understanding coronary artery involvement is critical for managing these patients.
• Collateral circulation plays a vital role in myocardial nutrition.

Purpose of the Study:

• To evaluate clinical and radiological findings in patients with post-infarction left ventricular aneurysm.
• To assess the impact of coronary artery disease severity on treatment strategies.
• To investigate the role of collateral circulation in patients with left ventricular aneurysm.

Main Methods:

• Clinical and radiological examinations were performed on 110 patients.
• Selective coronarography and cardiac catheterization were utilized.
• Patients were grouped based on the number of affected coronary arteries.

Main Results:

• The anterior interventricular artery was occluded in 95.8% of patients.
• Aorticocoronary bypass surgery was not feasible in 65% of cases.
• Collateral arteries formed anastomoses, improving nutrition to the myocardium surrounding the aneurysm.

Conclusions:

• Coronary artery stenosis severity influences the feasibility of surgical interventions.
• Collateral circulation is essential for maintaining myocardial viability in the presence of aneurysms.
• Aorticocoronary bypass grafting is indicated when stenotic arteries, not directly involved in the aneurysm, contribute to collateral flow.