Multiple Small Coronary Artery Fistulas Emptying into the Left Ventricle: A Rare but Challenging Problem

Area of Science:

• Cardiology
• Vascular Surgery
• Medical Case Reports

Background:

• Coronary artery fistulas (CAFs) are uncommon abnormal connections between coronary arteries and heart chambers or great vessels.
• Most CAFs drain into the right side of the heart; drainage into the high-pressure left ventricle (LV) is less frequent.
• Multiple small CAFs are exceptionally rare, particularly those draining into the LV.

Purpose of the Study:

• To present a rare case of multiple small coronary artery fistulas originating from the ramus intermedius and draining into the left ventricle.
• To discuss the diagnostic and therapeutic challenges associated with this specific type of coronary artery fistula.
• To contribute to the literature on managing complex coronary artery anomalies.

Main Methods:

• Case report detailing patient presentation, diagnostic workup, and therapeutic considerations.
• Review of relevant literature on coronary artery fistulas, focusing on left ventricular drainage and multiple fistulas.
• Discussion of treatment options and their limitations in this specific clinical scenario.

Main Results:

• A patient presented with atypical chest pain and was diagnosed with multiple small CAFs.
• The CAFs originated from the ramus intermedius and abnormally emptied into the left ventricle.
• The case underscores the difficulties in selecting and applying appropriate therapeutic strategies for such complex CAFs.

Conclusions:

• Multiple small coronary artery fistulas draining into the left ventricle represent a rare and diagnostically challenging condition.
• Therapeutic options for these fistulas are limited and require careful consideration of risks and benefits.
• Further research and case reports are needed to establish optimal management guidelines for these rare cardiovascular anomalies.