{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T16:24:01Z","timestamp":1786465441291,"version":"build-2736575974"},"reference-count":15,"publisher":"American Medical Association (AMA)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA"],"published-print":{"date-parts":[[2026,8,11]]},"abstract":"\n Importance<\/jats:title>\n Anhydramnios from fetal kidney failure causes lethal pulmonary hypoplasia. Serial amnioinfusions have shown promise in mitigating pulmonary disease from bilateral renal agenesis, but efficacy and safety for other causes of fetal kidney failure are unproven.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n To assess the efficacy of serial amnioinfusions initiated before 26 weeks\u2019 gestation to mitigate lethal pulmonary hypoplasia in cases of anhydramnios due to fetal kidney failure.<\/jats:p>\n <\/jats:sec>\n \n Design, Setting, and Participants<\/jats:title>\n Prospective, nonrandomized clinical trial conducted at 13 US fetal therapy centers from December 2018 to February 2025. Outcomes for maternal-fetal pairs with anhydramnios before 22 weeks\u2019 gestation due to fetal kidney failure without bilateral renal agenesis are reported; data collection for surviving infants continued until February 13, 2026.<\/jats:p>\n <\/jats:sec>\n \n Exposure<\/jats:title>\n Thirty-two participants underwent serial amnioinfusions with isotonic fluid beginning before 26 weeks\u2019 gestation.<\/jats:p>\n <\/jats:sec>\n \n Main Outcomes and Measures<\/jats:title>\n The primary end point was neonatal survival for 14 days or longer with dialysis access placement. Secondary outcome measures of survival to discharge home and kidney transplant are reported.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Twenty-nine of 32 participants (91%) had a live birth, with a median (IQR) gestational age at delivery of 34 weeks 1 day (31 weeks 5 days to 34 weeks 6 days). All participants delivered before 37 weeks\u2019 gestation. No unexpected serious maternal adverse events occurred, and the most common maternal complications were preterm prelabor rupture of membranes in 19 participants (56%) and chorioamniotic separation in 10 (29%). The primary outcome occurred in 19 (65.5%) of 29 live-born neonates (95% CI, 45.7%-82.1%). Factors associated with survival to the primary outcome included receiving more amnioinfusions (median [IQR], 14 [9-18] in survivors vs 7 [4-11] in nonsurvivors;\n P<\/jats:italic>\n \u2009=\u2009.01), longer time interval from first amnioinfusion to preterm prelabor rupture of membranes (63.5 [60.5-74.5] days in survivors vs 29.0 [22.0-56.0] days in nonsurvivors;\n P<\/jats:italic>\n \u2009=\u2009.01), gestational age greater than 32 weeks (79% of survivors vs 38% of nonsurvivors;\n P<\/jats:italic>\n \u2009=\u2009.03), and higher birth weight (2029 [1770-2250] g in survivors vs 1635 [1185-1915] g in nonsurvivors;\n P<\/jats:italic>\n \u2009=\u2009.01). Fourteen live-born infants (48%) survived to hospital discharge at a median (IQR) age of 4.7 (3.4-5.7) months. Of the 11 infants surviving to date, 7 (64%) have undergone kidney transplant between ages 2 years to 5 years.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions and Relevance<\/jats:title>\n Serial amnioinfusions mitigated lethal pulmonary hypoplasia in neonates with anhydramnios due to fetal kidney failure. Significant neonatal morbidity and mortality independent of early lung function was noted. Factors associated with survival were consistent with the Renal Anhydramnios Fetal Therapy trial\u2019s bilateral renal agenesis cohort, suggesting common mechanistic pathways for mitigating pulmonary hypoplasia.<\/jats:p>\n <\/jats:sec>\n \n Trial Registration<\/jats:title>\n \n ClinicalTrials.gov Identifier:\n NCT03101891<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1001\/jama.2026.8568","type":"journal-article","created":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T15:40:49Z","timestamp":1782920449000},"page":"473","source":"Crossref","is-referenced-by-count":0,"title":["Neonatal Survival After Serial Amnioinfusions for Anhydramnios Due to Fetal Kidney Failure"],"prefix":"10.1001","volume":"336","author":[{"given":"Jena L.","family":"Miller","sequence":"first","affiliation":[{"name":"Richard D. Wood Jr Center for Fetal Diagnosis and Treatment, Children\u2019s Hospital of Philadelphia, Philadelphia, Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmet A.","family":"Baschat","sequence":"additional","affiliation":[{"name":"Center for Fetal Therapy, Department of Gynecology & Obstetrics, The Johns Hopkins University, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony","family":"Johnson","sequence":"additional","affiliation":[{"name":"The Fetal Center, Department of Obstetrics and Gynecology, University of Texas Health Center, Houston"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yair J.","family":"Blumenfeld","sequence":"additional","affiliation":[{"name":"Department of Obstetrics & Gynecology, Stanford University School of Medicine, Stanford, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mauro H.","family":"Schenone","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Division of Maternal and Fetal Medicine, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliana S.","family":"Gebb","sequence":"additional","affiliation":[{"name":"Richard D. Wood Jr Center for Fetal Diagnosis and Treatment, Children\u2019s Hospital of Philadelphia, Philadelphia, Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julie S.","family":"Moldenhauer","sequence":"additional","affiliation":[{"name":"Institute for Maternal Fetal Health, Nemours Children\u2019s Hospital, Wilmington, Delaware"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael V.","family":"Zaretsky","sequence":"additional","affiliation":[{"name":"Colorado Fetal Care Center, Children\u2019s Hospital Colorado, University of Colorado School of Medicine, Aurora"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramen H.","family":"Chmait","sequence":"additional","affiliation":[{"name":"Department of Obstetrics & Gynecology, University of Southern California, Keck School of Medicine, Los Angeles"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan M.","family":"Gonzalez","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of California, San Francisco"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Russell S.","family":"Miller","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eyal","family":"Krispin","sequence":"additional","affiliation":[{"name":"Fetal Care and Surgery Center, Division of Fetal Medicine and Surgery, Boston Children\u2019s Hospital, Harvard Medical School, Boston, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alireza","family":"Shamshirsaz","sequence":"additional","affiliation":[{"name":"Division of Fetal Medicine and Therapy, Department of Women\u2019s Health, Dell Medical School, The University of Texas at Austin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katherine H.","family":"Bligard","sequence":"additional","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Washington University in St Louis School of Medicine, St Louis, Missouri"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda M.","family":"Kalan","sequence":"additional","affiliation":[{"name":"Obstetrics and Gynecology Institute, Division of Maternal-Fetal Medicine, Fetal Care Center, Cleveland Clinic Foundation, Cleveland, Ohio"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magdalena","family":"Sanz Cortes","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anita J.","family":"Moon-Grady","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Pediatrics, University of California, San Francisco"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ellen","family":"Bendel-Stenzel","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Mayo Clinic Children\u2019s, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shina","family":"Menon","sequence":"additional","affiliation":[{"name":"Division of Nephrology, Department of Pediatrics, Stanford University, Palo Alto, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cynthia","family":"Wong","sequence":"additional","affiliation":[{"name":"Division of Nephrology, Department of Pediatrics, Stanford University, Palo Alto, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Grimm","sequence":"additional","affiliation":[{"name":"Division of Nephrology, Department of Pediatrics, Stanford University, Palo Alto, 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Children\u2019s Hospital Colorado, University of Colorado School of Medicine, Aurora"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua","family":"Samuels","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, McGovern Medical School at UTHealth Houston, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rita","family":"Swinford","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, McGovern Medical School at UTHealth Houston, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amaris M.","family":"Keiser","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Yale Medicine, Yale New Haven Children\u2019s Hospital, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mara","family":"Rosner","sequence":"additional","affiliation":[{"name":"Richard D. 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