Giant Right Coronary Artery Aneurysm Associated with a Fistula Draining into the Superior Vena Cava

Area of Science:

• Cardiology
• Cardiac Surgery
• Vascular Medicine

Background:

• Giant coronary artery aneurysms (GCAAs) are uncommon cardiovascular conditions.
• Coronary-cameral fistulas (CCFs) are abnormal connections between coronary arteries and heart chambers.
• GCAAs often coexist with other cardiac pathologies like coronary atherosclerosis, potentially worsening myocardial ischemia.

Observation:

• This report details a rare case of a large right coronary artery aneurysm.
• The aneurysm was associated with a coronary-cameral fistula draining into the superior vena cava.
• The patient presented with a complex cardiac anomaly requiring surgical consideration.

Findings:

• Surgical intervention for GCAAs and CCFs is typically reserved for specific indications.
• Key indications include severe coronary artery disease, risk of embolization, or aneurysm expansion/rupture.
• Successful surgical repair of the described right coronary artery aneurysm and fistula was achieved.

Implications:

• This case highlights the importance of recognizing and managing uncommon GCAA and CCF presentations.
• Prompt surgical intervention can prevent serious complications such as myocardial ischemia and heart failure.
• Successful surgical outcomes underscore the efficacy of timely treatment for these rare cardiac conditions.