An apparatus (10) is provided for treating regurgitation of blood flow through a diseased heart valve. The diseased heart valve includes an annulus, anterior and posterior valve leaflets, and a subvalvular apparatus. The apparatus includes a substantially annular support member (40) and at least one infra - annular support member (42) securely connected thereto. The substantially annular support member has at least a first intermediate portion, a second intermediate portion, and a posterior end portion extending between the first and second intermediate portions. The posterior end portion is dimensioned for attachment to a posterior portion of the annulus of the diseased heart valve. The at least one infra - annular support member is securely connected to the substantially annular support member at a first location. The at least one infra - annular support member is dimensioned to extend below at least one of the posterior and anterior valve leaflets and across or behind at least one subvalvular structure.