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An uncommon anatomy presenting with a common disease
1Department of Surgery, Flinders Medical Centre, Adelaide, South Australia, Australia. jp.tantiongco@yahoo.com
Insights
Coronary artery fistulas, rare congenital anomalies, can lead to serious heart conditions. This case highlights a fistula contributing to ischaemic heart disease, successfully treated with bypass grafting and fistula ligation.
Area of Science:
- Cardiology
- Vascular Surgery
Background:
- Coronary artery fistulas are uncommon congenital abnormalities connecting coronary arteries to cardiac chambers or great vessels.
- While often asymptomatic until adulthood, they can precipitate severe cardiovascular events like heart failure and myocardial infarction.
Observation:
- A patient with long-standing stable angina presented with a coronary artery fistula to the main pulmonary artery.
- The fistula was associated with chronic occlusion of the left anterior descending artery, proximal to the fistula site.
Findings:
- The coronary artery fistula is suspected to have contributed to the development of the patient's ischaemic heart disease.
- Successful surgical intervention included coronary artery bypass grafting and ligation of the fistula.
Implications:
- This case underscores the importance of considering coronary artery anomalies in patients with ischaemic heart disease.
- Management strategies involve addressing both the fistula and the underlying coronary artery disease according to current guidelines.
Abstract:
Coronary artery fistulas are rare anomalous communications, between coronary arteries and cardiac chambers and great vessels. They are often congenital, but usually present in adulthood. They can affect cardiac haemodynamic stability and are thought to predispose patients to heart failure, myocardial ischaemia, myocardial infarction, infective endocarditis, arrythmias and rupture. Herein, a case is discussed where a patient with long-standing stable angina was found to have a coronary artery fistula to the main pulmonary artery and concomitant ischaemic heart disease with a chronically occluded left anterior descending artery, proximal to the fistula. It is thought that the fistula probably predisposed the patient's ischaemic heart disease. He underwent a successful coronary artery bypass grafting plus surgical ligation of the coronary artery fistula. This uncommon coronary artery anomaly, presenting with ischaemic heart disease, a common disease in adulthood, is discussed in the context of current recommedations.