Direct vs balloon counterpulsation assistance of the failing myocardium.
D000818:Animals; D001243:Assisted Circulation; D001794:Blood Pressure; D003326:Coronary Circulation; D004285:Dogs; D007423:Intra-Aortic Balloon Pumping; D009206:Myocardium / Q000378:metabolism; D010101:Oxygen Consumption; D012770:Shock, Cardiogenic / Q000503:physiopathology*