Prenatal diagnosis of isolated coronary arteriovenous fistula

Area of Science:

• Cardiology
• Fetal Medicine
• Pediatric Surgery

Background:

• Coronary arteriovenous fistula (CAVF) is a rare anomaly of coronary artery termination.
• Etiologies include congenital and acquired causes, with iatrogenic origins common post-cardiac procedures.
• Prenatal diagnosis of CAVF is infrequent, often associated with complex congenital heart disease.

Observation:

• An isolated coronary arteriovenous fistula was successfully diagnosed via fetal echocardiography at 25.3 weeks of gestation.
• This case represents a rare instance of an isolated CAVF identified prenatally.

Findings:

• Accurate prenatal diagnosis of isolated CAVF was achieved.
• The diagnosis facilitated prompt surgical planning and intervention.

Implications:

• Early and accurate prenatal diagnosis of CAVF is crucial for timely management.
• Successful surgical correction postnatally leads to favorable outcomes in neonates.
• This case highlights the importance of fetal echocardiography in identifying rare cardiac anomalies.