P35Duodenal atresia: prenatal diagnosis and perinatal outcome of 27 fetuses

Abstract

ObjectiveTo discuss the prenatal diagnosis, obstetrical management, and perinatal outcome of duodenal atresia, and investigate the incidence of associated malformations and chromosomal anomalies.Materials and methodsThe data about 27 fetuses with duodenal atresia which were diagnosed on prenatal sonographic evaluation, and confirmed postnatally, among 20401 high risk pregnancies who were referred to Prenatal Diagnosis Unit of Obstetrics and Gynecology Department of Istanbul Medical Faculty between 1988 and 1999, are analyzed. Presence of polihydramnios, gestational week at diagnosis, associated malformations and chromosomal abnormalities, and perinatal outcomes were evaluated. Fisher's exact test is used for statistical analysis.ResultsDuodenal atresia was diagnosed in 43 fetuses, but postnatal outcomes of 38 fetuses could be obtained. Ten of the fetuses had additional abnormalities in 27 cases whom diagnosis was confirmed. Nine chromosomal abnormalities (33.3%) including seven trisomy 21 (29.6%), one deletion, one translocation anomaly detected. The perinatal mortality of duodenal atresia is found 44.4% with 12 pre and postnatal deaths. Fifteen infants discharged in a healthy condition after operations.ConclusionDuodenal atresia, especially in the presence of associated abnormalities has a high perinatal mortality. Establishment of diagnosis in prenatal period, even in the late stages of gestation, may contribute the obstetrical and neonatal management.