title: A comparison of droperidol and cyclizine in the prevention of postoperative nausea and vomiting associated with patient-controlled analgesia.
abstract: Fifty ASA 1 or 2 patients scheduled to undergo major gynaecological surgery were allocated randomly to one of two groups. All patients received a standard anaesthetic regimen. Patients in group 1 received droperidol 1.25 mg given intravenously 20 min prior to the end of surgery and a patient-controlled analgesia infusion containing morphine 1 mg.ml-1 and droperidol 0.05 mg.ml-1. Patients in group 2 received cyclizine 50 mg by slow intravenous injection 20 min prior to the end of surgery and a patient-controlled analgesia infusion containing morphine 1 mg.ml-1 and cyclizine 2 mg.ml-1. Fifteen of 25 patients (60%) in group 1 and 18 (72%) of 25 in group 2 suffered no nausea or vomiting postoperatively. Two patients (8%) in group 1 and three (12%) in group 2 suffered severe postoperative nausea or vomiting. We conclude that cyclizine is as effective as droperidol in the prevention of postoperative nausea and vomiting when included in a patient-controlled analgesia infusion using morphine.
authors.affiliation: University Department of Anaesthesia, Queen's Medical Centre, Nottingham.
authors.forename: A D
authors.initials: AD
authors.lastname: Walder
authors.forename: A R
authors.initials: AR
authors.lastname: Aitkenhead
mesh_terms: D000328:Adult; D000368:Aged; D016058:Analgesia, Patient-Controlled / Q000009:adverse effects*; D003501:Cyclizine / Q000627:therapeutic use*; D004329:Droperidol / Q000627:therapeutic use*; D005260:Female; D005836:Genitalia, Female / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D009325:Nausea / Q000517:prevention & control*; D011183:Postoperative Complications / Q000517:prevention & control*; D014839:Vomiting / Q000517:prevention & control*
chemical_list: D004329:Droperidol; D003501:Cyclizine