Antihypertensive treatment during pregnancy and functional development at primary school age in a historical cohort...

Area of Science:

• Obstetrics and Gynecology
• Pediatric Neurology
• Pharmacology

Background:

• Mild-to-moderate gestational hypertension requires careful management to ensure maternal and fetal well-being.
• Antihypertensive medications like labetalol and methyldopa are commonly used, but their long-term effects on child neurodevelopment are not fully understood.

Purpose of the Study:

• To compare the functional neurodevelopment of children exposed prenatally to labetalol, methyldopa, or no medication (bed rest) for gestational hypertension.
• To assess outcomes including intelligence quotient (IQ), concentration, motor skills, and behavior in primary school-aged children.

Main Methods:

• A historical cohort study involving 202 children born in twelve Dutch hospitals.
• Children were exposed prenatally to labetalol, methyldopa, or managed with bed rest for mild-to-moderate gestational hypertension.
• Central nervous system development was evaluated using standardized tests at 4-10 years of age, with statistical analyses including linear regression and chi-square tests.

Main Results:

• Children exposed to labetalol showed a higher incidence of attention deficit hyperactivity disorder (ADHD) compared to those exposed to methyldopa or bed rest.
• A trend towards more frequent sleeping problems was observed in children exposed to methyldopa, though not statistically significant.
• No significant differences were found between the groups in IQ, concentration, or motor development test scores.

Conclusions:

• Prenatal labetalol exposure may be associated with an increased risk of childhood ADHD.
• Prenatal methyldopa exposure might be linked to sleep disturbances.
• Further research with larger sample sizes is necessary to confirm these findings and elucidate the long-term neurodevelopmental effects of antihypertensive medications used during pregnancy.