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CLINICAL TRIAL
COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL
Pain on injection of propofol: the mitigating influence of metoclopramide using different techniques.
Acta Anaesthesiologica Scandinavica 1999 January
BACKGROUND: Metoclopramide administered intravenously (i.v.) immediately before injection of propofol, after mixing with propofol, or after a rubber tourniquet for 1 min before propofol injection will reduce pain induced by propofol injection. In this study, these three different techniques in reducing propofol injection pain with metoclopramide were compared with lidocaine or saline to evaluate the most effective method in reducing propofol injection pain.
METHODS: In a randomized, semi-double-blind treatment, 175 patients were included into this study. Patients in group A were pretreated with metoclopramide 10 mg i.v. before propofol (2 mg/kg) induction. Patients in group B were induced with a mixture of propofol and metoclopramide. Patients in group C were pretreated with metoclopramide i.v. with a rubber tourniquet on the arm for 1 min followed by propofol administration. Groups D and E were identical to group C except for the replacement of pretreatment with either lidocaine (40 mg) or saline, respectively.
RESULTS: Groups A, C and D (with active pain prophylaxis) showed a significantly less incidence of pain than the saline control group (E) as propofol was injected. There was no significance difference between metoclopramide and lidocaine in reducing propofol injection pain using a tourniquet technique. The intensity of the propofol injection pain (verbal pain score) was stronger with saline as compared with the other groups.
CONCLUSIONS: We conclude that i.v. retention of metoclopramide with tourniquet is as good as lidocaine and may be a useful alternative for reducing pain on propofol injection.
METHODS: In a randomized, semi-double-blind treatment, 175 patients were included into this study. Patients in group A were pretreated with metoclopramide 10 mg i.v. before propofol (2 mg/kg) induction. Patients in group B were induced with a mixture of propofol and metoclopramide. Patients in group C were pretreated with metoclopramide i.v. with a rubber tourniquet on the arm for 1 min followed by propofol administration. Groups D and E were identical to group C except for the replacement of pretreatment with either lidocaine (40 mg) or saline, respectively.
RESULTS: Groups A, C and D (with active pain prophylaxis) showed a significantly less incidence of pain than the saline control group (E) as propofol was injected. There was no significance difference between metoclopramide and lidocaine in reducing propofol injection pain using a tourniquet technique. The intensity of the propofol injection pain (verbal pain score) was stronger with saline as compared with the other groups.
CONCLUSIONS: We conclude that i.v. retention of metoclopramide with tourniquet is as good as lidocaine and may be a useful alternative for reducing pain on propofol injection.
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