Structural valve failure of TTK Chitra heart valve prosthesis.

Mechanical prosthetic valve dysfunction can be structural or non-structural. Structural valve dysfunction includes disc dislodgement, disc fracture, and strut fracture. These events in an implanted valve are rare but could pose a risk to life. TTK Chitra heart valve prosthesis (CHVP), an Indian-made single tilting disc valve, has been implanted since 1990 as reported by Vayalappil and Bhuvaneswar (2005). There is limited literature on the structural valve dysfunction of CHVP. We hereby submit images of the dysfunctional valve from our patient, a case of acute severe mitral paravalvular regurgitation 16 years after implantation of CHVP.

A Rare Entity: Double Outlet of Both Ventricles.

Double outlet of both ventricles is an anomaly wherein both ventricles equally share the arterial trunks. A majority of the literature describes a variant of this disease with a muscular outlet septum which is perpendicular to the plane of the ventricular septum although a variant with a fibrous muscular septum can also be present. The condition may be associated with obstruction of either outflow tract, which may complicate repair. We report a child with double outlet of both ventricles and a fibrous outlet septum with unobstructed outflows. The child underwent a successful surgical repair using a two-patch technique.