HIV exposure and neurodevelopmental outcome in very low birth weight infants in a low-middle income setting: a

Cheryl Anne Mackay1, Refiloe Masekela2

  • 1Department of Paediatrics, Dora Nginza Hospital, Nelson Mandela Bay, Port Elizabeth, South Africa.

AIDS Care
|March 25, 2021
PubMed

Insights

Maternal HIV status impacts neurodevelopment in very low birth weight (VLBW) infants. HIV exposure was linked to lower scores, while magnesium sulfate and breastfeeding showed improved infant neurodevelopmental outcomes at 12 months.

Area of Science:

  • Neonatalogy
  • Neurodevelopmental Pediatrics
  • Public Health

Background:

  • Neurodevelopmental impairment is a significant concern for premature infants.
  • Very low birth weight (VLBW) infants face heightened risks for developmental challenges.
  • Understanding factors influencing neurodevelopment in VLBW infants is crucial for early intervention.

Purpose of the Study:

  • To describe neurodevelopmental outcomes in VLBW infants at 12 months postmenstrual age (PMA).
  • To correlate these outcomes with maternal HIV status.
  • To identify other factors associated with neurodevelopmental trajectories in this vulnerable population.

Main Methods:

  • A prospective cohort study involving VLBW infants (<1500g) from June 2017 to January 2019.
  • Follow-up assessments conducted at 12 months PMA.
  • Neurodevelopmental assessment using a general development quotient, with analysis of maternal HIV status, magnesium sulfate exposure, and breastfeeding.

Main Results:

  • Of 279 enrolled VLBW infants, 104 underwent neurodevelopmental assessment at 12 months PMA.
  • The mean general development quotient was 106.8, with 3% exhibiting moderate-to-severe or mild impairment.
  • HIV exposure correlated with lower developmental scores (104.3 vs. 109.0, p=0.005).
  • Antenatal magnesium sulfate (109.6 vs. 105.2, p=0.01) and breastfeeding (108.0 vs. 104.0, p=0.03) were associated with higher scores.

Conclusions:

  • Maternal HIV status is a significant factor associated with neurodevelopmental outcomes in VLBW infants at 12 months PMA.
  • HIV exposure in VLBW infants is linked to diminished neurodevelopmental scores.
  • Antenatal magnesium sulfate administration and breastfeeding are associated with improved neurodevelopmental outcomes in VLBW infants.

Related Concept Videos

Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
3.7K
Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
939
Prevalence and Incidence01:08

Prevalence and Incidence

In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
1.1K
Longitudinal Studies01:26

Longitudinal Studies

Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
319