Left heart decompression by closed gravity drainage.
D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures; D003331:Coronary Vessels / Q000601:surgery; D004322:Drainage; D005112:Extracorporeal Circulation; D006324:Heart Arrest, Induced; D006352:Heart Ventricles / Q000601:surgery; D006801:Humans; D008722:Methods