Efficacy of lidocaine-prilocaine combination cream in reducing pain caused by hepatitis B injection in neonates: a randomized control trial
Abstract
Background Many invasive medical procedures cause pain inneonates. Pain in this age group increases morbidity, impairs
emotional bonding, and causes hyperalgesia. Combination of
lidocaine and prilocaine cream is one of the topical analgesics
that are easy to use and safe for neonates.
Objective To assess the efficacy of lidocaine-prilocaine
combination cream in reducing pain caused by intramuscular
injection of hepatitis B and to find out the correlation of sex,
gestational age, birth weight, chronological age, and method of
delivery with infant’s pain response.
Methods A double blind randomized controlled trial was
conducted on term neonates. Subjects were selected consecutively
and every subject was randomized to either receive lidocaine-
prilocaine cream or placebo one hour prior to administration of
intramuscular hepatitis B vaccine. The administration was
recorded by a handycam and the intensity of pain responses was
evaluated using DAN (Douleur Aigue Nouveau-ne) scale.
Results Of 67 subjects, the mean of DAN scale was 7.60 (95%
CI 7.27;7.95) in the lidocaine-prilocaine cream group and this
was significantly lower (P<0.0001) than in placebo group, which
was 8.82 (95% CI 8.56;9.09). ANCOVA showed that there were
no associations between sex, gestational age, birth weight,
chronological age, and method of delivery with infant’s pain
response.
Conclusion Lidocaine-prilocaine combination cream can reduce
the pain caused by intramuscular injection of hepatitis B vaccine
on term neonates.
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Accepted 2016-08-19
Published 2007-02-28