Anomalous Coronary Artery Origin from Pulmonary Artery and Coronary Fistulas: A Review About Coronary Steal Phenomenon

Area of Science:

• Pediatric Cardiology
• Congenital Heart Disease
• Vascular Anomalies

Background:

• Anomalous coronary artery origin from the pulmonary artery and coronary-pulmonary fistulas are primary causes of ischemic cardiopathy in children.
• These conditions involve a connection between high and low-pressure chambers, leading to a "coronary steal phenomenon".

Purpose of the Study:

• To review the embryology, anatomical variations, clinical manifestations, and diagnostic and therapeutic approaches for anomalous coronary artery origin and coronary-pulmonary fistulas.
• To elucidate the diverse presentations of the coronary steal phenomenon resulting from these anomalies.

Main Methods:

• Literature review focusing on pediatric cardiology and congenital cardiovascular anomalies.
• Synthesis of information on embryological development, anatomical descriptions, clinical presentations, and management strategies.
• Analysis of pathophysiology underlying the coronary steal phenomenon in these conditions.

Main Results:

• Detailed description of embryological origins for both anomalous coronary artery origin and coronary-pulmonary fistulas.
• Categorization of anatomical variations and associated lesions contributing to clinical diversity.
• Outline of diagnostic modalities including imaging techniques and clinical presentation patterns.
• Summary of current therapeutic strategies, encompassing both surgical and interventional options.

Conclusions:

• Anomalous coronary artery origin and coronary-pulmonary fistulas, despite similar coronary steal pathophysiology, present with varied clinical features.
• A comprehensive understanding of embryology, anatomy, and clinical presentation is crucial for effective diagnosis and management.
• Tailored diagnostic and therapeutic strategies are essential for optimizing outcomes in pediatric patients with these coronary anomalies.