title: Incremental intravenous nitroglycerin for control of afterload during anesthesia in patients undergoing myocardial revascularization.
abstract: In 25 patients undergoing coronary artery bypass grafting hemodynamic measurements (including values obtained with Swan-Ganz catheterization in 21 of the patients) were made before and after administering a bolus injection of 64 or 96 mcg of nitroglycerin to relieve intraoperative hypertension. This pharmacological agent reduced afterload and preload without raising heart rate. The effect was apparent within 1-3 min and lasted 5-10 min. Untoward hypotension was not encountered in any instance. This intervention appears to be a safe approach to the treatment of intraoperative hypertension in patients with coronary artery disease.
mesh_terms: D000328:Adult; D000368:Aged; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000601:surgery; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D005996:Nitroglycerin / Q000494:pharmacology / Q000627:therapeutic use*; D013997:Time Factors
chemical_list: D005996:Nitroglycerin