Bow hunter's syndrome

A 62-year-old man with non-obstructive hypertrophic cardiomyopathy developed rotatory vertigo and pre-syncope on turning his head to the left, since the past 2 months. He had received an implantable cardioverter defibrillator owing to a history of syncope caused by ventricular fibrillation. Ultrasonography of the carotid artery (UCA) showed a significant decrease in the …