Abstract
The effect of propofol was studied in 11 patients who had common bile duct sphincter of Oddi manometry for suspected dysfunction. Patients were initially sedated with midazolam and then further or resedated with propofol for the second set of pressure measurements. Recordings were made about 10 min after giving each drug. No patient had elevated basal pressure initially. Average basal pressure was unchanged (16.7±16.4 mm Hg), phasic contraction frequency was unchanged (3.4±3.8/min), and phasic contraction amplitude fell but did not achieve statistical significance (91.8±77.3 mm Hg,P=0.1). There was no difference in lowest blood pressure, pulse, or oxygen saturation recorded during midazolam or propofol sedation. Subjectively, the patients were more sedated during propofol administration. It is concluded that propofol is a safe and effective agent for conscious sedation. It does not alter the sphincter of Oddi pressure profile in patients with normal basal sphincter pressures and thus could be used as an alternative and perhaps better form of sedation for ERCP with sphincter of Oddi manometry.
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Supported by a grant from Poudre Valley Hospital Foundation.
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Goff, J.S. Effect of propofol on human sphincter of Oddi. Digest Dis Sci 40, 2364–2367 (1995). https://doi.org/10.1007/BF02063238
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DOI: https://doi.org/10.1007/BF02063238