Document Detail

Neonatal neurobehavior effects following buprenorphine versus methadone exposure.
MedLine Citation:
PMID:  23106928     Owner:  NLM     Status:  In-Data-Review    
AIM: To determine the effects of in utero exposure to methadone or buprenorphine on infant neurobehavior.
DESIGN: Three sites from the Maternal Opioid Treatment: Human Experimental Research (MOTHER) study, a double-blind, double-dummy, randomized clinical trial participated in this substudy.
SETTING: Medical Centers that provided comprehensive maternal care to opioid-dependent pregnant women in Baltimore, MD, Providence, RI and Vienna, Austria.
PARTICIPANTS: Thirty-nine full-term infants.
MEASUREMENTS: The Neonatal Intensive Care Unit (NICU) Network Neurobehavioral Scale (NNNS) was administered to a subgroup of infants on postpartum days 3, 5, 7, 10, 14-15 and 28-30.
FINDINGS: While neurobehavior improved for both medication conditions over time, infants exposed in utero to buprenorphine exhibited fewer stress-abstinence signs (P < 0.001), were less excitable (P < 0.001) and less over-aroused (P < 0.01), exhibited less hypertonia (P < 0.007), had better self-regulation (P < 0.04) and required less handling (P < 0.001) to maintain a quiet alert state relative to in utero methadone-exposed infants. Infants who were older when they began morphine treatment for withdrawal had higher self-regulation scores (P < 0.01), and demonstrated the least amount of excitability (P < 0.02) and hypertonia (P < 0.02) on average. Quality of movement was correlated negatively with peak NAS score (P < 0.01), number of days treated with morphine for NAS (P < 0.01) and total amount of morphine received (P < 0.03). Excitability scores were related positively to total morphine dose (P < 0.03).
CONCLUSION: While neurobehavior improves during the first month of postnatal life for in utero agonist medication-exposed neonates, buprenorphine exposure results in superior neurobehavioral scores and less severe withdrawal than does methadone exposure.
Mara G Coyle; Amy L Salisbury; Barry M Lester; Hendrée E Jones; Hai Lin; Klaudia Graf-Rohrmeister; Gabriele Fischer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Addiction (Abingdon, England)     Volume:  107 Suppl 1     ISSN:  1360-0443     ISO Abbreviation:  Addiction     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9304118     Medline TA:  Addiction     Country:  England    
Other Details:
Languages:  eng     Pagination:  63-73     Citation Subset:  IM    
Copyright Information:
© 2012 The Authors, Addiction © 2012 Society for the Study of Addiction.
Department of Pediatrics, The Warren Alpert Medical School of Brown University, Providence, RI, USA.
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