title: Biologic heart-assist device problems similar to difficulties with mechanical pumps.
mesh_terms: D000818:Animals; D001243:Assisted Circulation / Q000009:adverse effects*; D006348:Cardiac Surgical Procedures; D004285:Dogs; D006353:Heart-Assist Devices / Q000009:adverse effects*; D009132:Muscles / Q000601:surgery*; D013923:Thromboembolism / Q000209:etiology*