BACKGROUND
Gastroschisis is a severe congenital anomaly the etiology of which is unknown. Research evidence supports attempted vaginal delivery for pregnancies complicated by gastroschisis in the absence of obstetric indications for cesarean delivery.
OBJECTIVE
The objectives of the study evaluating pregnancies complicated by gastroschisis were to: (i) determine the proportion of women undergoing planned cesarean versus attempted vaginal delivery; and (ii) provide up-to-date epidemiology on risk factors associated with this anomaly.
STUDY DESIGN
This population-based study of United States natality records from 2005–2013 evaluated pregnancies complicated by gastroschisis. Women were classified based on whether they attempted vaginal delivery or underwent a planned cesarean (n=24,836,777). Obstetrical, medical, and demographic characteristics were evaluated. Multivariable log-linear regression models were developed to determine factors associated with mode of delivery. Factors associated with the occurrence of the anomaly were also evaluated in log-linear models.
RESULTS
Of 5,985 pregnancies with gastroschisis, 63.5% (n=3,800) attempted vaginal delivery and 36.5% (n=2,185) underwent planned cesarean delivery. The rate of attempted vaginal delivery increased from 59.7% in 2005 to 68.8% in 2013. Earlier gestational age and Hispanic ethnicity were associated with lower rates of attempted vaginal delivery. Factors associated with the occurrence of gastroschisis included young age, smoking, high educational attainment, and being married. Protective factors included chronic hypertension, black race, and obesity. The incidence of gastroschisis was 3.1 per 10,000 pregnancies and did not increase during the study period.
CONCLUSION
Attempted vaginal delivery is becoming increasingly prevalent for women with a pregnancy complicated by gastroschisis. Recommendations from research literature findings may be diffusing into clinical practice. A significant proportion of women with this anomaly still deliver by planned cesarean suggesting further reduction of surgical delivery for this anomaly is possible.