An anchoring device (1) designed for anchoring a prosthetic heart valve inside a heart, includes an extraventricular part (2) designed to be positioned inside an atrium or an artery and a ventricular part (3) designed to be positioned inside a ventricle, wherein the ventricular part includes a double wall composed of an outer wall (4) and an inner wall (5) spaced apart at the level where the prosthetic heart valve is intended to be inserted, and wherein the anchoring device further includes a predefined V-shaped groove (8) formed between the extraventricular part (2) and the ventricular part (3). The present invention also relates to an anchoring system (11) for anchoring a prosthetic heart valve inside a heart, including the anchoring device (1), a prosthetic heart valve support (12) and a prosthetic heart valve (13) connected to the prosthetic heart valve support (12).
