title: Hypotensive anaesthesia for operations on the ear, nose and parotid gland. Use of intravenous metoprolol as an adjunct to sodium nitroprusside and halothane.
mesh_terms: D000293:Adolescent; D000328:Adult; D000771:Anesthesia, Intravenous; D001794:Blood Pressure / Q000187:drug effects; D004334:Drug Administration Schedule; D004423:Ear / Q000601:surgery; D004562:Electrocardiography; D005292:Ferricyanides / Q000008:administration & dosage; D006221:Halothane; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007023:Hypotension, Controlled; D008297:Male; D008790:Metoprolol / Q000008:administration & dosage; D008875:Middle Aged; D009599:Nitroprusside / Q000008:administration & dosage; D009666:Nose / Q000601:surgery; D010306:Parotid Gland / Q000601:surgery; D011412:Propanolamines / Q000008:administration & dosage
chemical_list: D005292:Ferricyanides; D011412:Propanolamines; D009599:Nitroprusside; D008790:Metoprolol; D006221:Halothane