Document Detail

Hemolytic Disease of the Fetus and Newborn With Late-Onset Anemia due to Anti-M: A Case Report and Review of the Japanese Literature.
MedLine Citation:
PMID:  24262303     Owner:  NLM     Status:  Publisher    
Hemolytic disease of the fetus and newborn (HDFN) attributed to M/N-incompatibility varies from asymptomatic to lethally hydropic. Case reports are rare, and the clinical significance of anti-M is not completely understood. A challenging case of HDFN due to anti-M prompted an investigation of the Japanese literature, in order to characterize the clinical spectrum of M/N-incompatibility pregnancies in Japan and report results to English-language readers. Japanese reports of HDFN attributed to M/N incompatibility were compiled. Abstracted data include maternal antibody titers at delivery, fetal direct antiglobulin test, hemoglobin, total bilirubin, reticulocyte count at birth, and therapeutic interventions. We investigated characteristics of HDFN due to M/N-incompatible pregnancies in Japan after encountering a case of severe HDFN along with late-onset anemia in an infant born to a woman carrying IgG anti-M with a titer of 1. In total, thirty-three babies with HDFN due to anti-M and one due to anti-N have been reported in Japan since 1975. The median maternal antibody titer was 64 at delivery and was 16 or less in 10 of 34 women (29%). Five of 34 babies (15%) were stillborn or died as neonates. Twenty-one of 29 survivors (72%) had severe hemolytic anemia and/or hydrops fetalis. The reticulocyte count of neonates with anemia stayed below the reference interval. Sixteen (55%) developed late-onset anemia and 14 (48%) were transfused with M-negative RBCs. Significant positive correlation (P < .05) between the hemoglobin value and the reticulocyte count within 4 days of birth was obtained in 16 babies with anti-M HDFN. In the Japanese population, 21 of 34 cases of M/N-incompatible HDFN (72%) have manifested as severe hemolytic anemia and/or hydrops fetalis. Low reticulocyte count in neonates with late-onset anemia is consistent with suppressed erythropoiesis due to anti-M.
Hiroyasu Yasuda; Hitoshi Ohto; Kenneth E Nollet; Kinuyo Kawabata; Shunnichi Saito; Yoshihito Yagi; Yutaka Negishi; Atsushi Ishida
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-10-19
Journal Detail:
Title:  Transfusion medicine reviews     Volume:  -     ISSN:  1532-9496     ISO Abbreviation:  Transfus Med Rev     Publication Date:  2013 Oct 
Date Detail:
Created Date:  2013-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8709027     Medline TA:  Transfus Med Rev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013.
Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, Fukushima, Japan. Electronic address:
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