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Current Drug Metabolism

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ISSN (Print): 1389-2002
ISSN (Online): 1875-5453

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Research Article

Changing Pain Management Strategy from Opioid-centric Towards Improve Postoperative Cognitive Dysfunction with Dexmedetomidine

Author(s): Chunhong Su*, Xiaojun Ren, Hongpei Wang, Xiaomei Ding and Jian Guo

Volume 23, Issue 1, 2022

Published on: 16 December, 2021

Page: [57 - 65] Pages: 9

DOI: 10.2174/1389200222666211118115347

Price: $65

Abstract

Objective: This study was aimed to investigate the effectiveness of dexmedetomidine (DEX) on improving the level of pain and disability to find out the possible correlation between psychological factors with pain management satisfaction and physical function in patients with femoral neck fractures.

Methods: One hundred twenty-four adult patients with stable femoral neck fractures (type I and II, Garden classification) who underwent internal fixation, were prospectively enrolled including 62 patients in the DEX group and 62 patients in the control group. The magnitude of disability using Harris Hip Score, Postoperative Cognitive Dysfunction (POCD) using Mini-Mental State Examination (MMSE score), Quality of Recovery (QoR-40), pain-related anxiety (PASS-20), pain management and pain catastrophizing scale (PCS) were recorded on the first and second day after surgery.

Results: The DEX group on the first and second days after surgery exhibited higher quality of recovery scores, greater satisfaction with pain management, low disability scores, less catastrophic thinking, lower pain anxiety, greater mini mental state examination scores and less opioid intake and the differences were statistically significant compared with the control group (P<0.001). Emergence agitation and incidence of POCD were significantly less in the DEX group (P<0.001). Decreased disability was associated with less catastrophic thinking and lower pain anxiety, but not associated with more opioid intake (P<0.001). Higher QoR-40 scores had a negative correlation with more catastrophic thinking and more opioid intake (P<0.001). Greater satisfaction with pain management was correlated with less catastrophic thinking and less opioid intake (P<0.001).

Conclusion: Using DEX as an adjunct to anesthesia could significantly improve postoperative cognitive dysfunction and the quality of recovery and these improvements were accompanied by decrease in pain, emergence agitation, and opioid consumption by DEX administration. Since pain relief and decreased disability were not associated with prescribing greater amounts of opioid intake in the patients, improving psychological factors, including reducing catastrophic thinking or self-efficacy about pain, could be a more effective strategy to reduce pain and disability, meanwhile reducing opioid prescription in the patients. Our findings showed that DEX administration is safe sedation with anti-inflammatory, analgesic and antiemetic effects and it could help change pain management strategy from opioidcentric towards improved postoperative cognitive dysfunction.

Keywords: Opioid intake, dexmedetomidine, psychological factors, postoperative cognitive dysfunction, catastrophic thinking, femoral neck fractures.

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