Effect of hepatitis C virus status on liver enzymes in opioid-dependent pregnant women maintained on opioid-agonist medication.
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ABSTRACT:
SUBMITTER: McNicholas LF
PROVIDER: S-EPMC4268861 | biostudies-literature | 2012 Nov
REPOSITORIES: biostudies-literature
Publications
Effect of hepatitis C virus status on liver enzymes in opioid-dependent pregnant women maintained on opioid-agonist medication.
McNicholas Laura F LF Holbrook Amber M AM O'Grady Kevin E KE Jones Hendrée E HE Coyle Mara G MG Martin Peter R PR Heil Sarah H SH Stine Susan M SM Kaltenbach Karol K
Addiction (Abingdon, England) 20121101
<h4>Aim</h4>To examine hepatic enzyme test results throughout the course of pregnancy in women maintained on methadone or buprenorphine.<h4>Design</h4>Participants were randomized to either methadone or buprenorphine maintenance. Blood chemistry tests, including liver transaminases and hepatitis C virus (HCV) status, were determined every 4 weeks and once postpartum. As part of a planned secondary analysis, generalized mixed linear models were conducted with aspartate aminotransferase (AST), ala ...[more]
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Project description:Induction onto buprenorphine during pregnancy may be more challenging than induction onto methadone. This study explores factors predicting withdrawal intensities and compares trajectories of withdrawal during the induction phase between opioid-dependent women randomly assigned to methadone or buprenorphine.A secondary analysis was conducted on data from 175 opioid-dependent pregnant women inducted onto buprenorphine or methadone subsequent to stabilization on morphine sulfate. ANOVA analyses were conducted to determine differences between mean peak CINA scores by medication and completion status. General linear mixed models were fitted to compare trajectories of CINA scores between methadone and buprenorphine conditions, and between study dropouts and completers within the buprenorphine condition.Both buprenorphine and methadone patients experienced withdrawal categorized as minimal by the CINA scoring system. Significant differences in mean peak CINA scores for the first 72 hours of induction were found between the methadone (4.5; SD=0.4) and buprenorphine conditions (6.9; SD=0.4), with buprenorphine patients exhibiting higher mean peak CINA scores [F (3, 165)=9.70, p<0.001]. The trajectory of CINA scores showed buprenorphine patients exhibiting a sharper increase in mean CINA scores than methadone patients [F (1, 233)=8.70, p=0.004]. There were no differences in mean peak CINA scores [F (3, 77)=0.08, p=0.52] or in trajectory of CINA scores [F (1, 166)=0.42, p=0.52] between buprenorphine study dropouts and completers.While mean peak CINA score was significantly higher in the buprenorphine condition than the methadone condition, neither medication condition experienced substantial withdrawal symptoms. Further research on factors related to successful induction to buprenorphine treatment in pregnant women is needed.
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Project description:AimsThis paper reviews the published literature regarding outcomes following maternal treatment with buprenorphine in five areas: maternal efficacy, fetal effects, neonatal effects, effects on breast milk and longer-term developmental effects.MethodsWithin each outcome area, findings are summarized first for the three randomized clinical trials and then for the 44 non-randomized studies (i.e. prospective studies, case reports and series and retrospective chart reviews), only 28 of which involve independent samples.ResultsResults indicate that maternal treatment with buprenorphine has comparable efficacy to methadone, although difficulties may exist with current buprenorphine induction methods. The available fetal data suggest buprenorphine results in less physiological suppression of fetal heart rate and movements than methadone. Regarding neonatal effects, perhaps the single definitive conclusion is that prenatal buprenorphine treatment results in a clinically significant less severe neonatal abstinence syndrome (NAS) than treatment with methadone. The limited research suggests that, like methadone, buprenorphine is compatible with breastfeeding. Data available thus far suggest that there are no deleterious effects of in utero buprenorphine exposure on infant development.ConclusionsWhile buprenorphine produces a less severe neonatal abstinence syndrome than methadone, both methadone and buprenorphine are important parts of a complete comprehensive treatment approach for opioid-dependent pregnant women.
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