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Antenatal prognostic factor of fetal echogenic bowel
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International audience. Objective: The aim of this study was to identify antenatal prognostic factors of neonatal outcomes in cases of fetal echogenic bowel (FEB). Study design: A retrospective study in three tertiary referral centers including fetal echogenic bowel over a 10-year period (from January 2003 to December 2013). The echogenicity of the fetal bowel was graded from 1 to 3, according to Slotnick's definition. Associated echographic findings such as bowel dilations, gallbladder abnormalities, calcifications, extra-abdominal abnormalities, intrauterine growth restriction (IUGR) and a decrease in amniotic fluid volume, if present were also recorded. This was followed by the FEB's sonographic evolution. The sonographic evolution was considered favorable if it was stable or decreasing and unfavorable if the echogenicity of the bowel increased or if additional sonographic findings appeared. Neonates had a pediatric examination in the delivery room and upon discharge from the maternity hospital. An outcome was considered good in the case of on-term delivery of a newborn with normal clinical examination and meconium elimination. Results: Complete pregnancy outcome data were available for 409 pregnancies. 338 newborns had uneventful outcomes (82.6%). Antenatal exploration diagnosed 4 cases of aneuploidy (1 case of trisomy 13, 1 case of trisomy 18 and 2 cases of triploidies), 16 cases of congenital infections, 9 cases of cystic fibrosis and 11 cases of bowel abnormalities. After a multivariate analysis, we discovered the sonographic grade of the echogenic bowel was not a prognostic factor of neonatal outcome. The isolated fetal echogenic bowel had a 6.6-fold increase chance of uneventful outcomes (adjusted odd ratio (aOR) 6.6, 95% CI 3-14.4). Notably, favorable sonographic evolution (aOR 8.1, 95% CI 4.1-16) and late gestational age at the time of the diagnosis (aOR 1.17, 95% CI 1.07-1.27) are independent, good prognostic factors of good neonatal outcomes. None of the 180 fetuses with isolated fetal echogenic bowel and favorable sonographic evolution had adverse outcomes. Among these, 4 cases (0.98%) of aneuploidy, 17 cases (4.2%) of congenital infections and 9 cases (2.2%) of cystic fibroses were also diagnosed. No cases of Down syndrome (DS) were reported. Conclusion: Our study shows that the grade should not be considered a prognostic factor of neonatal outcomes. Our data suggests the need to reevaluate the concept of systematic amniocentesis. Sonographic evolution of fetal bowel is an independent, strong prognostic factor for good neonatal outcomes. It also better defines the FEB prognostic. (C) 2017 Elsevier B.V. All rights reserved.
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