• G H Elta and J L Barnett.
• Department of Internal Medicine, University of Michigan, Ann Arbor, 48109-0362.
• Gastrointest. Endosc. 1994 Jan 1; 40 (1): 7-9.

AbstractMeperidine is routinely proscribed during sphincter of Oddi manometry because narcotics have been associated with spasm of the sphincter of Oddi. We have performed a prospective study of the effect of meperidine on sphincter of Oddi manometry in 18 patients undergoing manometry for suspected sphincter dysfunction. After diagnostic manometry using only intravenous diazepam sedation, the endoscope remained in the duodenum while 1 mg/kg intravenous meperidine was given. Five minutes later sphincter manometry was repeated. There was no difference in the baseline sphincter pressure before and after meperidine in all patients. The frequency of phasic contractions increased after meperidine (p = 0.001). Baseline sphincter pressure is generally the only manometric criteria used to diagnose sphincter dysfunction and this did not change after meperidine. We conclude that meperidine may be used for additional analgesia during sphincter manometry. This may improve patient tolerance and the success rate of this procedure.

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