Propranolol as a treatment for multiple coronary artery micro-fistulas

Area of Science:

• Cardiology
• Pediatric Cardiology
• Medical Genetics

Background:

• Congenital coronary artery fistulas (CCAFs) are abnormal connections between the coronary arteries and a heart chamber.
• Surgical or transcatheter closure are standard treatments for CCAFs, but may not be suitable for diffuse micro-fistulas.

Observation:

• A case of a patient with a malformative syndrome and chromosomal abnormality presented with multiple congenital coronary artery-left ventricle micro-fistulas.
• The patient's condition involved diffuse abnormal vascular connections, making traditional interventions challenging.

Findings:

• Treatment with propranolol resulted in the complete resolution of the coronary artery-left ventricle micro-fistulas within a 6-month period.
• This suggests a potential therapeutic role for propranolol in managing diffuse micro-fistulas.

Implications:

• Propranolol may represent a novel, non-invasive treatment option for congenital coronary artery-left ventricle micro-fistulas.
• Further research is warranted to confirm the efficacy and safety of propranolol for this condition.