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Mustafa, HJ; Sambatur, EV; Shamshirsaz, AA; Johnson, S; Moise, KJ; Baschat, AA; Joanne, Verweij, EJT; Javinani, A; Kilby, MD; Lopriore, E; Rose, R; Devlieger, R; Snowise, S; Sachs, UJ; Khalil, A, , HDFN, Delphi, Working, Group.
Monitoring and management of hemolytic disease of the fetus and newborn based on an international expert Delphi consensus.
Am J Obstet Gynecol. 2025; 232(3):280-300 Doi: 10.1016/j.ajog.2024.11.003
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Abstract:: The study aimed to develop structured, expert-based clinical guidance on the prenatal and postnatal management of hemolytic disease of the fetus and newborn. A Delphi procedure was conducted among an international panel of experts in fetal medicine, neonatology, and hematology. Experts were selected based on their expertise, relevant publications, and affiliations. The domains were (i) prenatal workup, (ii) prenatal monitoring and management, (iii) intrauterine transfusion (IUT), (iv) delivery, and (v) postnatal management. The predefined cut-off for consensus was ≥70% agreement. One hundred-seven experts representing 25 countries across 6 continents completed the first round, and 100 (93.5%) completed the subsequent rounds. 75.3% agreed on using cfDNA to determine fetal antigen status, particularly for RhD, Kell, and Rhc antigens. The critical titer, requiring fetal monitoring via ultrasound, is considered when the threshold of ≥16 is for non-Kell antigens. 70.0% agreed on the use of maternal IVIg in pregnancies with prior IUT <24 weeks or fetal/neonatal death due to HDFN. The minimum GA for IUT is 16 to 18 weeks, and the maximum is 35^0/7 to 35^6/7 weeks. Postnatal management consensus was reached for the following: anemia labs should be investigated in the affected neonates before hospital discharge (92.0% agreement), and if they received IUT, the labs should be repeated within 1 week of discharge (84.0% agreement). 96.0% agreed that exchange transfusions should be centralized in hospitals with sufficient exposure and experience, and 92.0% agreed that the hemoglobin cut-off level to consider transfusion following hospital discharge is 7 g/dL, and the newborns need to be monitored until 2 to 3 months of age (96.0% agreement).
Find related publications in this database (using NLM MeSH Indexing): Humans - administration & dosage; Pregnancy - administration & dosage; Erythroblastosis, Fetal - therapy, diagnosis; Infant, Newborn - administration & dosage; Female - administration & dosage; Blood Transfusion, Intrauterine - administration & dosage; Consensus - administration & dosage; Delphi Technique - administration & dosage; Immunoglobulins, Intravenous - therapeutic use; Fetal Monitoring - methods; Gestational Age - administration & dosage; Noninvasive Prenatal Testing - administration & dosage; Delivery, Obstetric - administration & dosage
Find related publications in this database (Keywords): anemia; consensus; cordocentesis; Delphi; erythroblastosis; fetal; hemolytic disease; IUT; IVIg; pregnancy; PUBS