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Tezcan AH, Ornek DH, Ozlu O, et al. Abuse potential assessment of propofol by its subjective effects after sedation. Pak J Med Sci. 2014;30(6):1247-52doi: 10.12669/pjms.306.5811.
Tezcan, A. H., Ornek, D. H., Ozlu, O., Baydar, M., Yavuz, N., Ozaslan, N. G., Dilek, K., & Keske, A. (2014). Abuse potential assessment of propofol by its subjective effects after sedation. Pakistan journal of medical sciences, 30(6), 1247-52. https://doi.org/10.12669/pjms.306.5811
Tezcan, Aysu Hayriye, et al. "Abuse potential assessment of propofol by its subjective effects after sedation." Pakistan journal of medical sciences vol. 30,6 (2014): 1247-52. doi: https://doi.org/10.12669/pjms.306.5811
Tezcan AH, Ornek DH, Ozlu O, Baydar M, Yavuz N, Ozaslan NG, Dilek K, Keske A. Abuse potential assessment of propofol by its subjective effects after sedation. Pak J Med Sci. 2014 Nov-Dec;30(6):1247-52. doi: 10.12669/pjms.306.5811. PMID: 25674117; PMCID: PMC4320709.
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Pak J Med Sci. 2014 Nov-Dec;30(6):1247-52. doi: 10.12669/pjms.306.5811.

Abuse potential assessment of propofol by its subjective effects after sedation.

Pakistan journal of medical sciences

Aysu Hayriye Tezcan, Dilsen Hatice Ornek, Onur Ozlu, Mustafa Baydar, Nurcan Yavuz, Nihal Gokbulut Ozaslan, Kevser Dilek, Aylin Keske

Affiliations

  1. Dr. Aysu Hayriye Tezcan, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.
  2. Dr. Dilsen Hatice Ornek, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.
  3. Prof. Dr. Onur Ozlu, Department of Anesthesia and Reanimation, Duzce University Faculty of Medicine, Duzce, Turkey.
  4. Dr. Mustafa Baydar, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.
  5. Dr. Nurcan Yavuz, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.
  6. Dr. Nihal Gokbulut Ozaslan, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.
  7. Dr. Kevser Dilek, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.
  8. Dr. Aylin Keske, Department of Anesthesia and Reanimation, Ankara Numune Education and Research Hospital, Ankara, Turkey.

PMID: 25674117 PMCID: PMC4320709 DOI: 10.12669/pjms.306.5811

Abstract

OBJECTIVE: In this study, we examined the euphoric effect of propofol and its high satisfaction ratio regarding its liability to be abused, particularly in painless procedures, such as colonoscopy.

METHODS: Fifty subjects aged between 18 and 65 years who fulfilled the criteria for ASA 1-2 and were prepared for colonoscopy were enrolled into this study. For intravenous sedation induction, 2 mg/kg propofol was used, and additional injections were administered according to BIS values. After colonoscopy, the subjects were taken to a recovery room and observed for 30 minutes. Patients were interviewed with the modified Brice questionnare regarding the incidence and the content of dreams. A 5-point Likert scale was used to classify their dreams, and the content of the dreams was also recorded. To assess the subjective effects of propofol, the patients were asked to use the Hall and Van der Castle emotion scale; their biological states were also assessed. The patients' feelings regarding propofol were each rated as absent or present. We used the Morphine-Benzedrine Group scale to measure the euphoric effects of propofol. At the end of the study, subjects scored their satisfaction on a five-point scale.

RESULTS: There were no statistically significant differences in sex age, weight, propofol dose, or satisfaction ratio (p>0.05) in the groups, although male patients received a higher dose of propofol and had higher satisfaction ratio. Patients reported no residual after-effects. The incidence of dreaming was 42%. There was no statistically significant difference in dreaming between the sexes, but male patients had a higher dreaming ratio. Dreamers received higher propofol doses and had a higher satisfaction ratio (p>0.05). All dreamers reported happy dreams regarding daily life, and their mean MBG score was 10.5. There was no correlation between MBG scores and propofol doses (r= -0.044, p= 0.761).

CONCLUSIONS: We conclude that propofol functions as a reward; that patients enjoy its acute effects; and that no residual after-effects should arise. We suggest that propofol may carry potential for abuse, and further abuse liability testing is indicated.

Keywords: Abuse potential; Euphoric effect; Propofol; Sedation

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