CPT® Code 33464

The procedure described by CPT® Code 33464 refers to a valvuloplasty of the tricuspid valve that includes the insertion of a ring. This surgical intervention is performed to address conditions such as tricuspid valve regurgitation, insufficiency, or incompetence, which occur when the tricuspid valve fails to close properly. The tricuspid valve is situated between the right atrium and the right ventricle of the heart, playing a crucial role in maintaining unidirectional blood flow. In cases of tricuspid valve regurgitation, the valve leaflets may bulge upward into the right atrium during ventricular contraction, leading to a backflow of blood. This condition can arise from various structural changes affecting the valve's components, including the leaflets, chordae tendineae, annulus, or papillary muscles. The surgical approach typically involves a median sternotomy to access the heart, followed by the establishment of cardiopulmonary bypass to facilitate the procedure. The specific repair techniques employed during the valvuloplasty depend on the nature and severity of the valve damage, with options including annuloplasty to reduce the orifice size and reconstruction of the valve leaflets. The use of a ring annuloplasty device is indicated when the annulus is dilated, ensuring proper valve function post-repair.