Outlet strut fracture of the Björk-Shiley 60 ° Convexo-Concave valve: Current information and recommendations for patient care

Mechanical failure of artificial heart valves can be a catastrophic event. The problem of outlet strut fracture of the Björk-Shiley 60 ° Convexo-Concave tilting disc prosthesis has received much attention in the medical literature and generated both concern and confusion among patients and physicians.