Novel technique for airless connection of artificial heart to vascular conduits

Abstract

Successful implantation of a total artificial heart relies on multiple standardized procedures, primarily the resection of the native heart, and exacting preparation of the atrial and vascular conduits for pump implant and activation. Achieving secure pump connections to inflow/outflow conduits is critical to a successful outcome. During the connection process, however, air may be introduced into the circulation, traveling to the brain and multiple organs. Such air emboli block blood flow to these areas and are detrimental to long-term survival. A correctly managed pump-to-conduit connection prevents air from collecting in the pump and conduits. To further optimize pump-connection techniques, we have developed a novel connecting sleeve that enables airless connection of the Cleveland Clinic continuous-flow total artificial heart (CFTAH) to the conduits. In this brief report, we describe the connecting sleeve design and our initial results from two acute in vivo implantations using a scaled-down version of the CFTAH.

SynCardia, total artificial heart, as a bridge to transplant

“…The surgical implantation technique has been described previously (7,8). Briefl y, the native ventricles were excised at the level of the atrioventricular valves, the atrial connectors were placed in the right and left atrial cuffs, the anastomosis of both great arteries was performed and the ventricles of the artifi cial heart were implanted.…”