title: The application of EMLA and glyceryl trinitrate ointment prior to venepuncture.
abstract: The efficacy of EMLA cream combined with glyceryl trinitrate (GTN) ointment was assessed by a double-blind prospective study. Adult female patients were randomly allocated to receive either EMLA 1 ml or 2 ml combined with GTN 2 mg, or EMLA 2 ml only. The difference in pain scores between the three groups was not statistically significant. When GTN was used with EMLA, the quality of the veins was superior and aided intravenous cannulation. There were no significant side-effects. It is concluded that if GTN is used with EMLA, the dose of EMLA can be reduced and intravenous cannulation is technically easier compared with EMLA alone.
authors.affiliation: Department of Anaesthesia, Lyell McEwin Health Service, Adelaide, S.A.
authors.forename: A
authors.initials: A
authors.lastname: Michael
authors.forename: M
authors.initials: M
authors.lastname: Andrew
mesh_terms: D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D004338:Drug Combinations; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage / Q000627:therapeutic use*; D000077442:Lidocaine, Prilocaine Drug Combination; D005996:Nitroglycerin / Q000008:administration & dosage / Q000627:therapeutic use*; D009824:Ointments; D010146:Pain / Q000209:etiology / Q000517:prevention & control*; D010147:Pain Measurement; D018962:Phlebotomy / Q000009:adverse effects*; D011318:Prilocaine / Q000008:administration & dosage / Q000627:therapeutic use*; D011446:Prospective Studies
chemical_list: D000779:Anesthetics, Local; D004338:Drug Combinations; D000077442:Lidocaine, Prilocaine Drug Combination; D009824:Ointments; D011318:Prilocaine; D008012:Lidocaine; D005996:Nitroglycerin