{"title":"Neurodevelopmental effects of opioids in preterm infants – A systematic review and meta-analysis of randomised and observational studies","authors":"Maya Rakshasbhuvankar , Chandra Rath , Sachin Agrawal , Sanjay Patole","doi":"10.1016/j.earlhumdev.2025.106357","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Opioids are commonly used to reduce pain and distress in preterm infants in neonatal intensive care units. However, there is a concern that exposure to opioids may adversely affect their neurodevelopment.</div></div><div><h3>Methods</h3><div>We conducted a systematic review of randomised controlled trials (RCTs) and observational studies (OSs) to investigate the effect of opioids on neurodevelopmental outcomes in preterm infants. We followed the Cochrane Collaboration guidelines and those for the synthesis of OSs. Results were pooled when at least two studies reported the outcome. We performed a qualitative synthesis for data not suitable for pooling.</div></div><div><h3>Results</h3><div>The systematic review included 21 records of 16 studies (13 OSs [<em>n</em> = 2993] and three RCTs [<em>n</em> = 180]). Quantitative analysis was possible for ten studies. The certainty of evidence was ‘very low’ for all outcomes. The risk of neurodevelopmental impairment, the primary outcome, was not increased in opioid exposed preterm infants (OR: 1.15, 95 % CIs: 0.64, 2.08, 5 OSs, <em>n</em> = 697 and OR: 1.29, 95 % CIs: 0.56, 3.01, 2 RCTs, <em>n</em> = 151). There was no increase in adverse secondary outcomes apart from lower motor scores at 2–3 years of age (MD: -6.19, 85 % CI: −11.26, −1.11, 4 OSs, <em>n</em> = 692) in the opioid group. On qualitative analysis of adjusted data, opioids showed variable effects: ten reports suggested harm, two suggested benefit and two suggested no impact, while the results were inconsistent in three reports.</div></div><div><h3>Conclusion</h3><div>The current evidence for the effect of opioids on neurodevelopmental outcomes of preterm infants is inconclusive and of very low certainty.</div></div>","PeriodicalId":11435,"journal":{"name":"Early human development","volume":"210 ","pages":"Article 106357"},"PeriodicalIF":2.0000,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Early human development","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378378225001677","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OBSTETRICS & GYNECOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Opioids are commonly used to reduce pain and distress in preterm infants in neonatal intensive care units. However, there is a concern that exposure to opioids may adversely affect their neurodevelopment.
Methods
We conducted a systematic review of randomised controlled trials (RCTs) and observational studies (OSs) to investigate the effect of opioids on neurodevelopmental outcomes in preterm infants. We followed the Cochrane Collaboration guidelines and those for the synthesis of OSs. Results were pooled when at least two studies reported the outcome. We performed a qualitative synthesis for data not suitable for pooling.
Results
The systematic review included 21 records of 16 studies (13 OSs [n = 2993] and three RCTs [n = 180]). Quantitative analysis was possible for ten studies. The certainty of evidence was ‘very low’ for all outcomes. The risk of neurodevelopmental impairment, the primary outcome, was not increased in opioid exposed preterm infants (OR: 1.15, 95 % CIs: 0.64, 2.08, 5 OSs, n = 697 and OR: 1.29, 95 % CIs: 0.56, 3.01, 2 RCTs, n = 151). There was no increase in adverse secondary outcomes apart from lower motor scores at 2–3 years of age (MD: -6.19, 85 % CI: −11.26, −1.11, 4 OSs, n = 692) in the opioid group. On qualitative analysis of adjusted data, opioids showed variable effects: ten reports suggested harm, two suggested benefit and two suggested no impact, while the results were inconsistent in three reports.
Conclusion
The current evidence for the effect of opioids on neurodevelopmental outcomes of preterm infants is inconclusive and of very low certainty.
期刊介绍:
Established as an authoritative, highly cited voice on early human development, Early Human Development provides a unique opportunity for researchers and clinicians to bridge the communication gap between disciplines. Creating a forum for the productive exchange of ideas concerning early human growth and development, the journal publishes original research and clinical papers with particular emphasis on the continuum between fetal life and the perinatal period; aspects of postnatal growth influenced by early events; and the safeguarding of the quality of human survival.
The first comprehensive and interdisciplinary journal in this area of growing importance, Early Human Development offers pertinent contributions to the following subject areas:
Fetology; perinatology; pediatrics; growth and development; obstetrics; reproduction and fertility; epidemiology; behavioural sciences; nutrition and metabolism; teratology; neurology; brain biology; developmental psychology and screening.