Surgical Endoscopy

, Volume 21, Issue 9, pp 1631–1636

Single use of fentanyl in colonoscopy is safe and effective and significantly shortens recovery time

  • G. Lazaraki
  • J. Kountouras
  • S. Metallidis
  • S. Dokas
  • T. Bakaloudis
  • D. Chatzopoulos
  • E. Gavalas
  • C. Zavos
Article

DOI: 10.1007/s00464-007-9215-y

Cite this article as:
Lazaraki, G., Kountouras, J., Metallidis, S. et al. Surg Endosc (2007) 21: 1631. doi:10.1007/s00464-007-9215-y

Abstract

Background

Colonoscopy remains an uncomfortable examination and many patients prefer to be sedated. The aim of this study was to evaluate the efficacy and safety of intravenous administration of fentanyl in titrated doses compared with intravenous administration of the well-known midazolam in titrated doses.

Methods

One hundred twenty-six patients scheduled for ambulatory colonoscopy were randomly assigned to receive either 25 mcg fentanyl (Fentanyl group, n = 66, 35 females, mean age = 61.5 years) and titrated up to 50 mcg or 2 mg midazolam (Midazolam group, n = 60, 33 females, mean age = 63.2 years) and titrated up to 5 mg. Patients graded discomfort on a scale from 0 to 4 and pain on a scale from 0 to 10. Success of the procedure, time to cecum, complications, and recovery time for each patient were independently recorded.

Results

Mean discomfort scores were 0.4 in the Fentanyl group and 1.0 in the Midazolam group (p = 0.002). Similarly, mean scores for pain and anus to cecum time were lower in the Fentanyl group than in the Midazolam group [2.59 vs. 4.43 (p = 0.002) and 8.7 vs. 12.9 min (p = 0.012), respectively]. No adverse events were reported in the Fentanyl group, while in the Midazolam group a decrease in oxygen saturation was noted in 23/60 (35%) patients. Mean recovery time was 5.6 min in the Fentanyl group and 16 min in the Midazolam group (p = 0.014). Mean dosage was36 mcg for fentanyl and 4.6 mg for midazolam.

Conclusion

Αdministration of fentanyl in low incremental doses is sufficient to achieve a satisfactory level of comfort during colonoscopy.

Keywords

ColonoscopySedationFentanylEndoscopy

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • G. Lazaraki
    • 1
  • J. Kountouras
    • 1
  • S. Metallidis
    • 2
  • S. Dokas
    • 1
  • T. Bakaloudis
    • 2
  • D. Chatzopoulos
    • 1
  • E. Gavalas
    • 1
  • C. Zavos
    • 1
  1. 1.Department of Medicine, Second Medical Clinic, Ippokration HospitalAristotle University of ThessalonikiThessalonikiGreece
  2. 2.1st Department of Internal Medicine, AHEPA General HospitalAristotle University of ThesslonikiThessalonikiGreece