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Revista Brasileira de Anestesiologia

Print version ISSN 0034-7094On-line version ISSN 1806-907X


CONTRERAS-DOMINGUEZ, Víctor  and  CARBONELL-BELLOLIO, Paulina. Prophylactic antiemetic therapy for acute abdominal surgery: a comparative study of droperidol, metoclopramide, tropisetron, granisetron and dexamethasone. Rev. Bras. Anestesiol. [online]. 2008, vol.58, n.1, pp.35-44. ISSN 0034-7094.

BACKGROUND AND OBJECTIVES: It is calculated that the incidence of postoperative nausea and vomiting (PONV) is approximately 30%. The prophylaxis of PONV has been the subject of several studies, both to decrease this problem and to compare the cost-benefit ration of the treatment used. The objective of this study was to compare the efficacy of 5 antiemetic drugs with a control group in emergency appendectomy. METHODS: A controlled, double-blind, prospective study with 150 patients, ASA I and II, BMI < 30, undergoing appendectomy, was undertaken. Patients were divided in six groups: Group 1 (n = 25): 5 mL of normal saline; Group 2 (n = 25): 0.625 mg of droperidol; Group 3 (n = 25): 20 mg of metoclopramide; Group 4 (n = 25): 5 mg of tropisetron; Group 5 (n = 25): 1 mg of granisetron; Group 6 (n = 25): 4 mg of dexamethasone. Monitoring included ECG, non-invasive blood pressure, O2 saturation, PETCO2, anesthetic gas analyzer and peripheral nerve stimulator. The presence of PONV, complications and the degree of satisfaction in the first 48 hours were evaluated. RESULTS: The incidence of PONV in the droperidol group was 4% while in the granisetron, tropisetron and metoclopramide groups it was 12% (p < 0.05). The dexamethasone group had a 24% incidence and the control group 28%. CONCLUSIONS: Low doses of droperidol were more effective in the prophylaxis of PONV in emergency appendectomy than the other drugs.

Keywords : ANTIEMETICS [dexamethasone]; ANTIEMETICS [droperidol]; ANTIEMETICS [granisetron]; ANTIEMETICS [metoclopramide]; ANTIEMETICS [tropisetron]; COMPLICATIONS [nausea]; COMPLICATIONS [vomiting]; SURGERY [appendectomy]; SURGERY [emergency].

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