Childhood growth outcomes 2 years after hypertensive versus normotensive pregnancy: a P4 study

Megan L Gow1,2,3, Priya Vakil4, Lynne Roberts5,6

  • 1Discipline of Paediatrics and Child Health, School of Clinical Medicine, UNSW Medicine and Health, Sydney, NSW, Australia. megan.gow@sydney.edu.au.

Pediatric Research
|September 6, 2023
PubMed

Insights

Infants exposed to hypertensive pregnancy disorders like preeclampsia (PE) and gestational hypertension (GH) showed accelerated weight gain from birth to 2 years. This rapid growth may increase future cardiometabolic disease risk.

Area of Science:

  • Perinatal medicine
  • Pediatric growth and development
  • Maternal-fetal medicine

Background:

  • Hypertensive disorders of pregnancy, including gestational hypertension (GH) and preeclampsia (PE), can impact infant development.
  • Intrauterine exposure may lead to long-term health implications for the child.

Purpose of the Study:

  • To compare infant growth outcomes from birth to 2 years among those exposed to normotensive pregnancy (NTP), GH, or PE.
  • To identify potential long-term effects of hypertensive pregnancy disorders on infant growth trajectories.

Main Methods:

  • Prospective cohort study (P4) involving infants born to mothers with NTP (n=240), GH (n=19), or PE (n=66).
  • Assessment of infant growth using birth, 6-month, and 2-year weight z-scores, change in weight z-scores, rapid weight gain, and conditional weight gain.
  • Age-correction applied for 6-month and 2-year assessments.

Main Results:

  • Infants exposed to PE had significantly lower birth weight and length z-scores compared to NTP or GH groups.
  • No significant differences in growth outcomes were observed at 6 months or 2 years between the groups.
  • Both GH and PE-exposed infants exhibited significantly greater weight z-score gain and rapid weight gain from birth to 2 years compared to NTP infants.
  • Accelerated weight gain remained significant for PE-exposed infants after adjusting for confounders.

Conclusions:

  • Gestational hypertension and preeclampsia are associated with accelerated infant weight gain up to 2 years of age.
  • This accelerated growth trajectory may elevate the risk of future cardiometabolic diseases.
  • Monitoring infant growth patterns following exposure to hypertensive disorders of pregnancy is recommended to mitigate risks of obesity and related conditions.
Abstract

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