What is coronary arteriovenous fistula?

Coronary arteriovenous fistula may be caused by congenital dysplasia, trauma, bacterial infection, etc.

1. Patients with congenital dysplasia

are in embryonic stage, abnormal cardiovascular development leads to the survival of primitive plexus vascular structure, coronary artery and surrounding veins are connected with each other, coronary arteriovenous fistula may be formed.

2.

Penetrating injuries such as traumatic stab wounds and metal fragments may cause coronary artery to be punctured, which may be connected with venous vessels during healing, resulting in coronary arteriovenous fistula.

3.

Inflammatory lesions are prone to occur after bacterial infection of the vascular wall of patients, resulting in vascular wall rupture. Coronary arteriovenous fistula may also occur when adjacent venous vessels are damaged.