Cocktail sedation containing propofol versus conventional sedation for ERCP: a prospective, randomized controlled study

Phonthep Angsuwatcharakon, Rungsun Rerknimitr, Wiriyaporn Ridtitid, Pradermchai Kongkam, Sahadol Poonyathawon, Yuwadee Ponauthai, Sakolkan Sumdin, Pinit Kullavanijaya, Phonthep Angsuwatcharakon, Rungsun Rerknimitr, Wiriyaporn Ridtitid, Pradermchai Kongkam, Sahadol Poonyathawon, Yuwadee Ponauthai, Sakolkan Sumdin, Pinit Kullavanijaya

Abstract

Background: ERCP practically requires moderate to deep sedation controlled by a combination of benzodiazepine and opiod. Propofol as a sole agent may cause oversedation. A combination (cocktail) of infused propofol, meperidine, and midazolam can reduce the dosage of propofol and we hypothesized that it might decrease the risk of oversedation. We prospectively compare the efficacy, recovery time, patient satisfactory, and side effects between cocktail and conventional sedations in patients undergoing ERCP.

Methods: ERCP patients were randomized into 2 groups; the cocktail group (n = 103) and the controls (n = 102). For induction, a combination of 25 mg of meperidine and 2.5 mg of midazolam were administered in both groups. In the cocktail group, a bolus dose of propofol 1 mg/kg was administered and continuously infused. In the controls, 25 mg of meperidine or 2.5 mg/kg of midazolam were titrated to maintain the level of sedation.

Results: In the cocktail group, the average administration rate of propofol was 6.2 mg/kg/hr. In the control group; average weight base dosage of meperidine and midazolam were 1.03 mg/kg and 0.12 mg/kg, respectively. Recovery times and patients' satisfaction scores in the cocktail and control groups were 9.67 minutes and 12.89 minutes (P = 0.045), 93.1and 87.6 (P <0.001), respectively. Desaturation rates in the cocktail and conventional groups were 58.3% and 31.4% (P <0.001), respectively. All desaturations were corrected with temporary oxygen supplementation without the need for scope removal.

Conclusions: Cocktail sedation containing propofol provides faster recovery time and better patients' satisfaction for patients undergoing ERCP. However, mild degree of desaturation may still develop.

Trial registration: ClinicalTrials.gov, NCT01540084.

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