Abstract
While mitroflow pericardial valve is a homograft for valve replacement having salient characteristic features, clinical evidence indicates that primary tissue failure may occur early after its use in occasional cases and the durability of the prosthesis per se is not reliably long. In a case to be presented here, primary tissue failure occurred with the prosthetic valve in a 40-year-old female, necessitating re-valve replacement 2 years and 5 months after the initial operation. In this unusual instance, a thread got entangled with the stent, gave rise to a tear of the prosthesis, thus causing mitral regurgitation to supervene. Strange to say, the thread was certainly not the one we used and derived from quite an unknown source. However, there is no denying the fact that no meticulous care was taken during and after surgery upon this patient and this calls for grave reflection.
