Aortico–left ventricular tunnel (ALVT) is a rare congenital paravalvar communication between the aorta and the left ventricle (LV). ALVT represents an extracardiac channel that connects the ascending aorta above the sino-tubular junction to the cavity of the left ventricle. It results in chronic preload due to regurgitation leading to left ventricular (LV) dilatation and requires early surgical repair.
Kathare et al. Diagnosis and management of aorto-left ventricular tunnel. Ann Pediatr Cardiol. 2015 May-Aug; 8(2): 103–107.