Hypotension following cardiopulmonary bypass.
D000368:Aged; D001021:Aortic Valve; D002302:Cardiac Output; D002315:Cardiopulmonary Bypass / Q000009:adverse effects*; D006350:Heart Valve Prosthesis; D006801:Humans; D007022:Hypotension / Q000188:drug therapy / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D010656:Phenylephrine / Q000627:therapeutic use; D014655:Vascular Resistance
D010656:Phenylephrine