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Gastroschisis: can prenatal sonography predict neonatal outcome?
R P Japaraj1, R Hockey, F Y Chan
1Department of Maternal Fetal Medicine, Mater Mothers' Hospital, South Brisbane, Queensland, Australia.
Summary
Prenatal ultrasound for gastroschisis (a birth defect) has limited predictive power for neonatal outcomes. However, the presence of polyhydramnios during pregnancy strongly indicates severe bowel complications in newborns.
Area of Science:
- Perinatology
- Neonatal Surgery
- Medical Imaging
Background:
- Gastroschisis is a congenital defect with significant neonatal morbidity and mortality.
- Previous antenatal ultrasound studies for prognostication have yielded conflicting results.
Purpose of the Study:
- To assess the predictive value of prenatal sonographic parameters for neonatal outcomes in gastroschisis.
- To identify reliable ultrasound markers for adverse neonatal outcomes.
Main Methods:
- Retrospective review of 45 fetuses diagnosed with gastroschisis between 1993 and 2001.
- Analysis of sonographic parameters including gestation, bowel dimensions, wall thickness, associated anomalies, growth restriction, and polyhydramnios.
- Definition of adverse outcome: death, severe bowel complications, or multiple bowel surgeries.
Main Results:
- Polyhydramnios was significantly associated with severe bowel complications (Likelihood Ratio 11.7, P=0.001).
- Other assessed ultrasound parameters did not show significant correlation with neonatal outcomes.
- Six neonates died, 12 experienced severe bowel complications, and 15 had combined adverse outcomes.
Conclusions:
- Antenatal ultrasound parameters, excluding polyhydramnios, have limited ability to predict adverse neonatal outcomes in gastroschisis.
- Polyhydramnios is a strong predictor of severe neonatal bowel complications.
- Findings aid in counseling parents and managing high-risk pregnancies.