Prenatal diagnosis of gastrointestinal anomalies with ultrasound. What have we learned?

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The use of routine obstetric ultrasound has been shown to accurately diagnose fetal gastrointestinal anomalies, both during and after the midtrimester. These are among the most accurately diagnosed of all anomalies, comprising 5-7% of all fetal anomalies. From a review of the literature it is clear that the use of routine ultrasound allows: (1) the detection of multiple anomalies that are often present and affect outcome significantly, (2) preparation for delivery at a tertiary center where neonatal surgical experience will allow optimal outcome, and (3) decisions about mode and timing of delivery in cases where this is important, i.e., cases of omphalocele and gastroschisis.