title: [Efficacy and safety of intravenous immunoglobulins in the management of neonatal hyperbilirubinemia due to ABO incompatibility: a meta-analysis].
abstract: OBJECTIVE
  ABO fetomaternal red blood cell incompatibility (ABO FMI) induces an immune hemolysis after fetal transfer of hemolyzing maternal anti-A or anti-B. ABO hemolytic disease (ABO HD) remains the most frequent cause of severe and early jaundice in newborns. High levels of unconjugated hyperbilirubinemia may induce acute and chronic neurological complications. Severe hyperbilirubinemia can be prevented by first-line phototherapy (PT) treatment, but exchange transfusion (ET) is required if treatment is not effective, even if ET is linked with high hemodynamic, infectious, gastrointestinal, and/or biological morbidity. Intravenous human polyclonal immunoglobulins (IVIg) have been proposed in concomitant use with PT in order to avoid the requirement for ET in ABO FMI.
  
  
  METHODS
  Electronic databases of all published clinical trials in neonatal hyperbilirubinemia due to ABO incompatibility were systematically queried for randomized controlled clinical trials comparing PT alone to PT associated with IVIg based on the requirement for ET. Duration of PT and adverse events were optional criteria. A meta-analysis of the selected data was performed on six selected trials out of 28 found.
  
  
  RESULTS
  IVIg doses ranged from 0.5 to 1.5 g/Kg in one to three administrations. Requirement for ET was lower in the IgIV+PT group, with a relative risk of 0.27 [CI 95% 0.17-0.42; P<0.00001], expressed as a number needed to treat of five neonates to avoid one ET. The mean duration of PT was 4 days in the PT group and association of PT with IVIg significantly reduced the duration of PT treatment by 0.84 days. The tolerance of the IVIg and PT association was good with no reported cases of ulcerative enterocolitis in 265 treated newborns.
  
  
  CONCLUSIONS
  IVIG associated with PT reduces the need for ET and the duration of PT in newborns with hyperbilirubinemia due to ABO hemolytic disease. Their efficacy and good tolerance prompt consideration of IVIg as a therapeutic adjuvant to PT in severe hemolytic hyperbilirubinemia due to ABO incompatibility.
authors.affiliation: Centre national de référence en hémobiologie périnatale (unité clinique), pôle périnatalité, hôpital Trousseau, AP-HP, 26, rue Arnold-Netter, 75012 Paris, France. Electronic address: anne.cortey@trs.aphp.fr.
authors.forename: A
authors.initials: A
authors.lastname: Cortey
authors.affiliation: LFB biotechnologies SAS, 3, avenue des Tropiques, Les Ulis, 91958 Courtabœuf, France.
authors.forename: M
authors.initials: M
authors.lastname: Elzaabi
authors.affiliation: LFB biotechnologies SAS, 3, avenue des Tropiques, Les Ulis, 91958 Courtabœuf, France.
authors.forename: T
authors.initials: T
authors.lastname: Waegemans
authors.affiliation: LFB biotechnologies SAS, 3, avenue des Tropiques, Les Ulis, 91958 Courtabœuf, France.
authors.forename: B
authors.initials: B
authors.lastname: Roch
authors.affiliation: Pôle de gynécologie et périnatalité, hôpital Robert-Debré, AP-HP, université Paris-7 Denis-Diderot, 48, boulevard Serrurier, 75019 Paris, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Aujard
mesh_terms: D000017:ABO Blood-Group System; D001787:Blood Group Incompatibility / Q000150:complications*; D003131:Combined Modality Therapy; D006801:Humans; D051556:Hyperbilirubinemia, Neonatal / Q000209:etiology / Q000628:therapy*; D016756:Immunoglobulins, Intravenous / Q000627:therapeutic use*; D007231:Infant, Newborn; D010789:Phototherapy
chemical_list: D000017:ABO Blood-Group System; D016756:Immunoglobulins, Intravenous