Key result
Late pregnancy is linked to a ~40% peak rate of exercise-induced ST-segment depression.
Why the study?
The effect of pregnancy on the maternal electrocardiographic response to exercise-induced stress was not previously determined.
Does pregnancy alter the maternal electrocardiographic response to exercise-induced stress in healthy women?
Observational (n=15)
No
Does pregnancy alter the maternal electrocardiographic response to exercise-induced stress in healthy women?
Absolute Event Rate: 40% vs 13.3%
p-value: p=0.01 < P < 0.05
Late pregnancy is associated with an increased frequency of exercise-induced ST-segment depression, which may represent a normal physiological effect rather than pathology.
No takes yet. Share an insight, caveat, or question.
Late-pregnancy exercise-induced ST depression may be physiological; leaves open whether it alters stress-test interpretation in healthy women.
Asher et al. (1993) conducted an observational in Healthy pregnancy (n=15). Exercise stress test at 37 weeks gestation vs. Exercise stress test at 29 weeks gestation and 6 weeks postpartum was evaluated on ST-segment depression induced by stress (95% CI 0.042-0.492, p=0.01 < P < 0.05). Exercise-induced ST-segment depression was more frequent at 37 weeks gestation (40%) compared to 29 weeks (13.3%) and 6 weeks postpartum (6.7%) (0.01 < P < 0.05).
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: