期刊
BIOLOGICAL RESEARCH FOR NURSING
卷 15, 期 3, 页码 309-317出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1099800411436171
关键词
OPRM1; COMT; pain; opioid use; sedation
类别
资金
- National Center for Research Resources (NCRR), a component of the National Institutes of Health (NIH) [UL1 RR024153]
- Office of the Senior Vice Chancellor for the Health Sciences, University of Pittsburgh
Previous studies have associated mu-opioid receptor (OPRM1) genotype with pain and analgesia responses in postoperative and patient populations. This study investigates the role of catechol-O-methyltransferase (COMT) and OPRM1 genotypes in acute postoperative pain scores, opioid use, and opioid-induced sedation after surgical procedures for orthopedic trauma in an otherwise healthy patient population. Verbal pain/sedation scores, opioid use, and physiologic responses in the immediate postoperative period were examined for association with genetic variants in Caucasians genotyped for OPRM1 single nucleotide polymorphisms (SNPs) A118G and C17T and COMT SNPs. The OPRM1 A118G genotype was associated with patients' postoperative Numerical Pain scale (NPS) ratings at 15 min in the postanesthesia care unit (PACU) (p = .01) and patients' sedation scores at 15 min in the PACU (p = .02). COMT genotype (rs4818) was associated with opioid consumption in the first 45 min in the PACU (p = .04). NPS ratings at 45 min were also higher in the group of patients with A/A genotype of rs4680 than in patients with the other two genotypes at this SNP (p = .03). Our haplotype trend analysis identified a COMT haplotype GCGG significantly associated with NPS at 15 min (p = .0013), amount of opioids consumed in the first 45 min (p = .0024), and heart rate at 45 min in the PACU (p = .017). The results indicate that genetic variations in COMT contribute to the acute postoperative pain and analgesia responses and physiologic responses in this group of otherwise healthy postoperative orthopedic trauma patients.
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