Wake-up times following sedation with sevoflurane versus propofol after cardiac surgery

  • Hellström J
  • Öwall A
  • Sackey P
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Abstract

OBJECTIVES: Intravenous sedation in the intensive care unit (ICU) may contribute to altered consciousness and prolonged mechanical ventilation. We tested the hypothesis that replacing intravenous propofol with inhaled sevoflurane for sedation after cardiac surgery would lead to shorter wake-up times, quicker patient cooperation, and less delusional memories. DESIGN: Following coronary artery bypass surgery with cardiopulmonary bypass, 100 patients were randomized to sedation with sevoflurane via the anesthetic conserving device or propofol. Study drugs were administered for a minimum of 2 hours until criteria for extubation were met. Primary endpoints were time from drug stop to extubation and to adequate verbal response. Secondary endpoints were adverse recovery events, memories reported in the ICU Memory Tool test, and ICU/hospital stay. RESULTS: Median time from drug stop to extubation (interquartile range/total range) was shorter after sevoflurane compared to propofol sedation; 10 (10/100) minutes versus 25 (21/240) minutes (p

Author-supplied keywords

  • Extubation
  • Memories
  • Postoperative period
  • Propofol
  • Randomized controlled trial
  • Sedation
  • Sevoflurane

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Authors

  • Jan Hellström

  • Anders Öwall

  • Peter V. Sackey

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