title: ST changes during sodium nitroprusside therapy in acute myocardial infarction.
abstract: Nineteen patients with acute anterior myocardial infarction who were hypertensive (systolic BP greater than or equal to 170 mm Hg and/or diastolic BP greater than or equal to 100 mm Hg) at the time of admission were treated with continuous infusion of sodium nitroprusside (NP). The administration of NP resulted in a significant elevation of ST segments probably related to decreased diastolic BP and increased HR; direct NP effects on coronary circulation cannot be excluded. These changes may indicate a negative effect on the ischemic portion(s) of the myocardium.
mesh_terms: D000368:Aged; D001794:Blood Pressure / Q000187:drug effects*; D004562:Electrocardiography; D005260:Female; D005292:Ferricyanides / Q000627:therapeutic use*; D006801:Humans; D006973:Hypertension / Q000150:complications; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000188:drug therapy*; D009599:Nitroprusside / Q000627:therapeutic use*; D014655:Vascular Resistance / Q000187:drug effects
chemical_list: D005292:Ferricyanides; D009599:Nitroprusside