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Anomalous left coronary artery from the pulmonary artery - a therapeutic dilemma
Insights
An anomalous left coronary artery from the pulmonary artery (ALCAPA) is rare in adults. Most patients present with electrocardiographic changes, and surgical intervention offers limited survival benefits.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- Anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital heart defect.
- It often presents with symptoms mimicking other cardiac conditions, leading to diagnostic challenges.
Purpose of the Study:
- To describe the clinical presentation, diagnostic findings, and outcomes of patients with ALCAPA.
- To evaluate the effectiveness of surgical intervention versus medical management for ALCAPA.
Main Methods:
- Retrospective review of 12 patients diagnosed with ALCAPA.
- Clinical, electrocardiographic, and angiographic data analysis.
- Assessment of outcomes following surgical reimplantation or medical management.
Main Results:
- Only 1 patient had a classic history of 'infantile angina'.
- Electrocardiographic changes of anterolateral ischemia/infarction were present in 92% of patients.
- Surgical reimplantation in 3 patients resulted in 2 survivors with persistent cardiac abnormalities. Medical management in 9 patients yielded 4 survivors.
- Most deaths (5/6) occurred within the first month of diagnosis.
Conclusions:
- ALCAPA diagnosis in adults is often delayed and lacks classic symptoms.
- Surgical intervention for ALCAPA may not significantly improve long-term prognosis.
- A conservative approach to surgical management is recommended due to limited impact on ultimate survival.
Abstract:
An anomalous left coronary artery from the pulmonary artery was diagnosed clinically in 12 patients (and confirmed angiographically in 11 and at autopsy in 1). A classic history of 'infantile angina' was obtained in only 1 patient, while the typical electrocardiographic findings of anterolateral ischaemia or infarction were present in 11 patients (92%). The majority had evidence of left ventricular dysfunction and mitral regurgitation. Three patients underwent surgical reimplantation of the anomalous left coronary artery into the ascending aorta. Two survive, but with persistent electrocardiographic changes and cardiomegaly. Nine patients, of whom 4 survive, were managed medically. Five of the 6 deaths occurred within 1 month of diagnosis. A conservative approach to surgical intervention is recommended, as surgery is unlikely to alter the ultimate prognosis.