A mechanical prosthetic heart valve assembly for the provision of surface anticoagulation by generating an electrostatic field of a plurality of negatively charged ions thereon, acting as neo-endothelium on the mechanical prosthetic heart valve, referred as Surface Anticoagulation by Electrical Neo-endothelialization (SAEN). The mechanical prosthetic heart valve assembly comprises a mechanical prosthetic heart valve housing; a pair of mechanical prosthetic heart valve discs; a mechanical prosthetic heart valve sewing ring; an implantable pulse generator serving as a source of electricity for generating the electrostatic field of the plurality of negatively charged ions thereon the surface of the mechanical prosthetic heart valve; a pulse generator bipolar lead connected to the outer surface of the mechanical prosthetic heart valve housing, using an electrode; and a polytetrafluoroethylene (PTFE) graft sutured to margins of a fenestration on the mechanical prosthetic heart valve sewing ring.