N Engl J Med 2021 Jun 8. Epub 2021 Jun 8.
From the Department of Obstetrics and Gynecology, KU Leuven (J.A.D., F.M.R.) and Academic Department of Development and Regeneration, Biomedical Sciences, University Hospitals KU Leuven, Leuven, Belgium (J.A.D., B.V.C., F.M.R.); King's College Hospital (K.H.N.) and the Institute for Women's Health, University College London Hospital (J.A.D.) - both in London; Hospital Antoine-Béclère, Université Paris-Saclay, Clamart, France (A.B.); Hospital Clinic and Sant Joan de Déu, Barcelona (E.G.); Mount Sinai Hospital, Toronto (G.R.); Hospital Maggiore Policlinico, Milan (N.P.); the National Center for Child Health and Development, Tokyo (H.S.); Children's Memorial Hermann Hospital, Houston (A.J.); the Medical University of Warsaw, Warsaw, Poland (M.W.); and University Hospital Bonn, Bonn, Germany (C.B.).
Background: Observational studies have shown that fetoscopic endoluminal tracheal occlusion (FETO) has been associated with increased survival among infants with severe pulmonary hypoplasia due to isolated congenital diaphragmatic hernia on the left side, but data from randomized trials are lacking.
Methods: In this open-label trial conducted at centers with experience in FETO and other types of prenatal surgery, we randomly assigned, in a 1:1 ratio, women carrying singleton fetuses with severe isolated congenital diaphragmatic hernia on the left side to FETO at 27 to 29 weeks of gestation or expectant care. Both treatments were followed by standardized postnatal care. Read More