Work

Iatrogenic left circumflex artery aneurysm with fistulization to the coronary sinus following mitral valve replacement: a rare surgical complication case report

Year: 2026

Type: article

Abstract: Background: Coronary artery aneurysm with arteriovenous fistula is extremely rare. Here we present a novel iatrogenic case of a left circumflex coronary artery (LCX) to coronary sinus fistula after mitral valve replacement (MVR). Case summary: A 47-year-old woman with a history of MVR was diagnosed with an iatrogenic aneurysmal fistula from the LCX to the coronary sinus, causing dyspnoea. Surgical intervention included degenerated mitral and aortic valve replacement, tricuspid valve repair, and fistula ligation. Post-operative recovery was uneventful, with improved symptoms and stable cardiac function on follow-up. Discussion: This case highlights the diagnostic and therapeutic challenges associated with arteriovenous fistula, particularly when they arise secondary to prior cardiac surgery. Given their rarity and potential for serious complications, early recognition and multidisciplinary planning are essential.

Source: European Heart Journal - Case Reports

DOI: 10.1093/ehjcr/ytaf678

Authors: Tahereh Davarpasand, Muhammadhosein Moradi, Kyomars Abbasi, Ali Mohammad Haji Zeinali, Sara Rezaei

Institutions: Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences

Language: English

Topic: Coronary Artery Anomalies

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $815