Heart rate
Five studies determined changes in offspring heart rate following ACS
exposure. Three of these studies showed no difference in heart rate
between ACS exposure and controls 1824 39. Two studies found an increase
in heart rate in ACS exposed infants - one found that in the first 72
hours after birth, unexposed infants had lower mean peak heart rate than
those were exposed to ACS, which the authors describe as clinically
irrelevant 19. The other study showed that infants
exposed to ACS had a higher heart rate response to a stress test (heel
prick) than those who had not been exposed ACS 40.