CPT® Code 33933

Backbench standard preparation of cadaver donor heart/lung allograft prior to transplantation, including dissection of allograft from surrounding soft tissues to prepare aorta, superior vena cava, inferior vena cava, and trachea for implantation

The procedure described by CPT® Code 33933 involves the meticulous preparation of a cadaver donor heart and lung allograft prior to transplantation. This preparation is critical to ensure that the allograft is suitable for implantation into the recipient. The process begins with the careful removal of the heart and lungs from a sterile container, where they are kept on ice and continuously bathed in a cold preservation solution to maintain their viability. The heart is inspected thoroughly, with particular attention given to the coronary arteries, which are palpated to assess their condition. If any repairs are necessary, these are performed as separate procedures, ensuring that the integrity of the allograft is preserved. The aorta, superior vena cava, inferior vena cava, and trachea are also examined and prepared for implantation. This includes identifying and repairing or excising the cannulation site on the aorta, inspecting the superior vena cava for the presence of the azygos vein orifice, and addressing any thrombus found during the inspection. The inferior vena cava is evaluated for anatomical considerations, and any defects in the atrial septum are noted for potential repair in a separately reportable procedure. The lungs are not overlooked; their external surfaces are examined for defects, which are also addressed through separate procedures if necessary. The trachea undergoes specific preparations, including the removal of the tracheal staple line and culturing of secretions. Throughout this process, the allograft is carefully maintained in a cold saline environment to ensure optimal conditions until the transplantation procedure commences. This comprehensive preparation is essential for the success of the transplantation and the overall outcome for the recipient.