PMID- 33064777 OWN - NLM STAT- MEDLINE DCOM- 20201210 LR - 20231112 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 15 IP - 10 DP - 2020 TI - Neurobehavior of newborn infants exposed prenatally to methadone and identification of a neurobehavioral profile linked to poorer neurodevelopmental outcomes at age 24 months. PG - e0240905 LID - 10.1371/journal.pone.0240905 [doi] LID - e0240905 AB - The abuse of prescription opioids and heroin by women of childbearing age over the past decade has resulted in a five-fold increase in the number of infants born opioid-dependent. Daily opioid substitution treatment with methadone is associated with less maternal illicit opioid use and improved antenatal care. However, research on the neurobehavioral effects of daily prenatal exposure to methadone on the infant is limited. Using the NICU Network Neurobehavioral Scale (NNNS), we compared the neurobehavior at birth of 86 infants born to opioid-dependent mothers receiving methadone treatment (MMT) with 103 infants unexposed to methadone. Generalized linear models, adjusted for covariates, showed methadone exposed infants had significantly poorer attention, regulation, and quality of movement. They were also significantly more excitable, more easily aroused, exhibited more non-optimal reflexes, hypertonicity, and total signs of stress abstinence. Maternal MMT was also associated with more indices of neonatal abstinence, including: CNS, visual, genitourinary (GI), and state. Latent profile analysis of the NNNS summary scores revealed four distinct neurobehavioral profiles with infants characterized by the most disturbed neurobehavior at birth having the poorest clinical outcomes at birth, and poorer cognitive and motor development at 24 months of age. FAU - Wouldes, Trecia A AU - Wouldes TA AUID- ORCID: 0000-0002-6609-8464 AD - Department of Psychological Medicine, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand. FAU - Woodward, Lianne J AU - Woodward LJ AD - School of Health Sciences, University of Canterbury, Christchurch, New Zealand. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201016 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Analgesics, Opioid) RN - UC6VBE7V1Z (Methadone) SB - IM MH - Adult MH - Analgesics, Opioid/adverse effects/pharmacology/*therapeutic use MH - Attention MH - Case-Control Studies MH - Child Development/*physiology MH - Female MH - Humans MH - Infant MH - Infant Behavior/*physiology MH - Linear Models MH - Male MH - Maternal Exposure MH - Methadone/adverse effects/pharmacology/*therapeutic use MH - Muscle Hypertonia/pathology MH - Neonatal Abstinence Syndrome/diagnosis MH - Opiate Substitution Treatment MH - Opioid-Related Disorders/*drug therapy/pathology MH - Pregnancy MH - Prenatal Exposure Delayed Effects/etiology MH - Psychometrics PMC - PMC7567379 COIS- The authors have declared that no competing interests exist. EDAT- 2020/10/17 06:00 MHDA- 2020/12/15 06:00 PMCR- 2020/10/16 CRDT- 2020/10/16 17:11 PHST- 2020/01/07 00:00 [received] PHST- 2020/10/05 00:00 [accepted] PHST- 2020/10/16 17:11 [entrez] PHST- 2020/10/17 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PHST- 2020/10/16 00:00 [pmc-release] AID - PONE-D-20-00546 [pii] AID - 10.1371/journal.pone.0240905 [doi] PST - epublish SO - PLoS One. 2020 Oct 16;15(10):e0240905. doi: 10.1371/journal.pone.0240905. eCollection 2020.