Anomalous left anterior descending coronary artery: malignant hospital course of a not so benign anomaly

Area of Science:

• Cardiology
• Congenital Heart Disease
• Interventional Cardiology

Background:

• Anomalous origin of the left anterior descending coronary artery (ALAD) from the right sinus of Valsalva is a rare congenital coronary anomaly.
• This anomaly is typically considered benign, with ALAD usually taking an intraseptal or prepulmonic course.

Observation:

• The patient presented with an ALAD originating from the right sinus of Valsalva with a prepulmonic route.
• The course of the anomalous artery was identified as malignant, posing a risk of sudden cardiac death or ischemia.

Findings:

• The prepulmonic course of the ALAD was associated with significant clinical concern due to its potentially malignant trajectory.
• The patient underwent successful revascularization to address the anomalous coronary artery course.

Implications:

• This case underscores the importance of recognizing that ALAD from the right sinus of Valsalva can present with a malignant course, contrary to its typical benign description.
• Prompt diagnosis and appropriate management, including revascularization, are crucial for patients with symptomatic or high-risk anomalous coronary arteries.
• Further research into the specific anatomical variations and clinical outcomes associated with malignant courses of ALAD is warranted.