Abstract
Purpose
To determine the impact of a single episode of minor trauma during pregnancy on maternal and fetal outcomes.
Methods
This is a retrospective cohort study of pregnant women who experienced minor trauma at ≥24 weeks gestation between 2004 and 2014. The subjects who experienced minor trauma (minor trauma group) were matched by gestational age at the time of minor trauma, body mass index, and age to a cohort of women who did not experience trauma in pregnancy (control group). The primary obstetrical outcome was preterm delivery and the primary neonatal outcomes were APGAR scores and neonatal intensive care unit admission.
Results
There were no significant differences between the two groups with respect to demographics or other risk factors for preterm delivery. Average gestational age at the time of delivery was 39 weeks regardless of whether a woman experienced minor trauma. Preterm delivery occurred more often in the control group (11.8% versus 7.9%, p = 0.0428) as did the rate of neonatal intensive care unit admissions (8.6% versus 5%, p = 0.0273). A subgroup analysis was performed excluding patients with a medically indicated delivery and there was no difference in the rate of preterm delivery (6.4% in the control group, 4% in the minor trauma group, p-value 0.9052). Among women with a spontaneous preterm delivery, the rates of preterm labor (3.0% control versus 2.0% minor trauma, p-value 0.75) and preterm premature rupture of membranes were found to be similar between the two groups (3.8% control versus 2.0% minor trauma PPROM, p-value 0.75).
Conclusions
One episode of minor trauma in pregnancy does not increase the risk for preterm delivery, premature rupture of membranes, or poor neonatal outcomes.
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