• Bmc Gastroenterol · Nov 2018

    Dexmedetomidine is safe and reduces the additional dose of midazolam for sedation during endoscopic retrograde cholangiopancreatography in very elderly patients.

    • Osamu Inatomi, Takayuki Imai, Takehide Fujimoto, Kenichiro Takahashi, Yoshihiro Yokota, Noriaki Yamashita, Hiroshi Hasegawa, Atsushi Nishida, Shigeki Bamba, Mitsushige Sugimoto, and Akira Andoh.
    • Division of Gastroenterology, Department of Medicine, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga, 520-2192, Japan. osam@belle.shiga-med.ac.jp.
    • Bmc Gastroenterol. 2018 Nov 6; 18 (1): 166.

    BackgroundEndoscopic retrograde cholangiopancreatography (ERCP) often requires deep sedation. Dexmedetomidine, a highly selective α2-adrenoceptor agonist with sedative activity and minimal effects on respiration, has recently been widely used among patients in the intensive care unit. However, its use in endoscopic procedures in very elderly patients is unclear. In this study, we retrospectively investigated the safety and efficacy of dexmedetomidine sedation during ERCP.MethodsThe study included 62 very elderly patients (aged over 80 years) who underwent ERCP from January 2014, with sedation involving dexmedetomidine (i.v. infusion at 3.0 μg/kg/h over 10 min followed by continuous infusion at 0.4 μg/kg/h) along with midazolam. For comparison, the study included 78 patients who underwent ERCP before January 2014, with midazolam alone. We considered additional administration of midazolam as needed to maintain a sedation level of 3-4, according to the Ramsay sedation scale. The outcome measures were amount of midazolam, adverse events associated with sedation, and hemodynamics.ResultsThe incidence of decreased SpO2 and median dose of additional midazolam were significantly lower in the dexmedetomidine group than in the conventional group. The minimum systolic blood pressure and minimum heart rate during and after examination was significantly lower in the dexmedetomidine group than in the conventional group. However, serious acute heart failure or arrhythmia was not noted.ConclusionsDexmedetomidine can decrease the incidence of respiratory complications and the total dose of other sedative agents. It can be used as an alternative to conventional methods with midazolam for adequate sedation during ERCP in very elderly patients.

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