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The Influence of Genotype Polymorphism on Morphine Analgesic Effect for Postoperative Pain in Children
Article in English | WPRIM | ID: wpr-48904
Responsible library: WPRO
ABSTRACT

BACKGROUND:

Although opioids are the most commonly used medications to control postoperative pain in children, the analgesic effects could have a large inter-individual variability according to genotypes. The aim of this study was to investigate the association between single nucleotide polymorphisms and the analgesic effect of morphine for postoperative pain in children.

METHODS:

A prospective study was conducted in 88 healthy children undergoing tonsillectomy, who received morphine during the operation. The postoperative pain score, frequency of rescue analgesics, and side effects of morphine were assessed in the post-anesthesia care unit. The children were genotyped for OPRM1 A118G, ABCB1 C3435T, and COMT Val158Met.

RESULTS:

Children with at least one G allele for OPRM1 (AG/GG) had higher postoperative pain scores compared with those with the AA genotype at the time of discharge from the post-anesthesia care unit (P = 0.025). Other recovery profiles were not significantly different between the two groups. There was no significant relationship between genotypes and postoperative pain scores in analysis of ABCB1 and COMT polymorphisms.

CONCLUSIONS:

Genetic polymorphism at OPRM1 A118G, but not at ABCB1 C3435T and COMT Val158Met, influences the analgesic effect of morphine for immediate acute postoperative pain in children.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Pain, Postoperative / Polymorphism, Genetic / Tonsillectomy / Humans / Child / Prospective Studies / Polymorphism, Single Nucleotide / Alleles / Genotype / Analgesics Language: English Journal: The Korean Journal of Pain Year: 2016 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pain, Postoperative / Polymorphism, Genetic / Tonsillectomy / Humans / Child / Prospective Studies / Polymorphism, Single Nucleotide / Alleles / Genotype / Analgesics Language: English Journal: The Korean Journal of Pain Year: 2016 Type: Article