Effectiveness of intraaortic balloon counterpulsation in the elderly.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001243:Assisted Circulation / Q000009:adverse effects; D002404:Catheterization; D005260:Female; D006439:Hemodynamics; D006801:Humans; D007423:Intra-Aortic Balloon Pumping / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology / Q000628:therapy*