Bispectral index monitoring for nurse-administered propofol sedation during upper endoscopic ultrasound: A prospective, randomized controlled trial

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Bispectral index monitoring (BIS) is a quantitative assessment of brain cortical activity. The aim of this study was to determine if BIS-guided nurse-administered propofol sedation would decrease by ≥20% both recovery time and propofol dose compared to standard propofol sedation for endoscopic ultrasound (EUS). Prospectively, eligible outpatients were randomized to BIS-guided or standard propofol sedation during EUS. Propofol was given by nurses in intermittent boluses with sedation targeted at a BIS score of <65-75. For the control group, the nurse was blinded to BIS scores and sedation was titrated to a modified observer's assessment of alertness/sedation scale (MOAA/S) score ≤3. Of 50 patients enrolled, data for 44 randomized to BIS-guidance (n = 24) and the control group (n = 20) were evaluated. Between the BIS-guided and control group there was no difference between the mean procedure duration, total propofol dose, recovery time, mean intraoperative MOAA/S, and mean BIS score. Compared to standard propofol sedation for EUS, BIS-guided propofol sedation offers no significant decrease in postprocedure recovery times or propofol doses.

Original languageEnglish (US)
Pages (from-to)2739-2745
Number of pages7
JournalDigestive diseases and sciences
Issue number10
StatePublished - Oct 1 2008



  • Endoscopic ultrasound
  • Monitoring
  • Propofol
  • Sedation

ASJC Scopus subject areas

  • Gastroenterology

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