Heart rate in newborns is associated with age, sex and maternal levothyroxine therapy.

Asta Uusitalo Antti Tikkakoski Pieta Lehtinen Kaisa Ylänen Tuija Poutanen Päivi H Korhonen

Published in: Acta paediatrica (Oslo, Norway : 1992) (2024)

Among term newborns with bradycardias, younger age, male sex and maternal levothyroxine medication were associated with a lower heart rate on Holter monitoring. Given the age-related increase in heart rate, the 80 beats per minute limit as a universal threshold for abnormal heart rate in newborns appears inappropriate.

Keyphrases

heart rate
gestational age
birth weight
heart rate variability
blood pressure
pregnant women
low birth weight
cord blood
preterm infants
preterm birth
healthcare
pregnancy outcomes
stem cells
bone marrow
adverse drug