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Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Illicit drug use and neonatal outcomes: a critical review
1Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA. aschempf@jhsph.edu
Insights
Prenatal illicit drug use, particularly cocaine, is linked to adverse neonatal outcomes like reduced fetal growth. Addressing surrounding factors is crucial for improving infant health.
Area of Science:
- Neonatal Health
- Perinatal Epidemiology
- Substance Abuse Research
Background:
- Neonatal effects of tobacco and alcohol are known, but evidence on prenatal illicit drug use is inconsistent.
- Social, psychosocial, behavioral, and biomedical factors complicate the assessment of illicit drug use on birth outcomes.
- Prevalent views often overestimate the direct impact of illicit drugs compared to confounding factors.
Purpose of the Study:
- To review recent epidemiologic literature on the neonatal impact of marijuana, opiate, and cocaine use.
- To highlight inconsistencies and challenges in evaluating the effects of prenatal illicit drug exposure.
- To provide recommendations for future research directions.
Main Methods:
- Systematic review of recent epidemiologic studies.
- Focus on marijuana, opiate, and cocaine use during pregnancy.
- Analysis of neonatal outcomes and confounding variables.
Main Results:
- Cocaine use shows the most consistent association with fetal growth decrements, with observed dose-response effects.
- Studies often lack adequate control for social, psychosocial, and contextual factors.
- Evidence for marijuana and opiate use on neonatal outcomes is less consistent.
Conclusions:
- Interventions must address multifaceted factors surrounding drug use, including social circumstances, nutrition, stress, and infections, to improve neonatal outcomes.
- Further research is needed to disentangle the direct effects of illicit drugs from confounding variables.
- Improving neonatal health requires a comprehensive approach beyond solely focusing on drug exposure.
Abstract:
Although the neonatal consequences of tobacco and alcohol exposure are well established, the evidence related to prenatal illicit drug use is less consistent despite prevalent views to the contrary. The many social, psychosocial, behavioral, and biomedical risk factors for adverse birth outcomes associated with illicit drug use complicate the evaluation of neonatal effects. Placing emphasis on recent research, this review summarizes the epidemiologic literature on the neonatal impact of marijuana, opiate, and cocaine use. Of these drugs, cocaine use is most consistently related to fetal growth decrements and dose-response effects have been observed. However, studies to date have largely failed to control for associated social, psychosocial, and contextual factors. Additional recommendations for future research are provided. It is likely that interventions will need to address the factors surrounding drug use to greatly improve neonatal outcomes (e.g., social circumstances, poor nutrition, stress, infections).
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