Hemolytic Disease of the Newborn Associated with Anti-Jra Alloimmunization in a Twin Pregnancy: The First Case Report in Korea
- Authors
- Kim, Hyung Suk; Park, Min Jeong; Sung, Tae Jung; Choi, Ji Seon; Hyun, Jung Won; Park, Kyoung Un; Han, Kyou Sup
- Issue Date
- Oct-2010
- Publisher
- Korean Society for Laboratory Medicine
- Keywords
- Anti-Jr(a); Neonatal jaundice; Fetal erythroblastosis; Hematologic pregnancy complications
- Citation
- Korean Journal of Laboratory Medicine, v.30, no.5, pp 511 - 515
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- Korean Journal of Laboratory Medicine
- Volume
- 30
- Number
- 5
- Start Page
- 511
- End Page
- 515
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/35355
- DOI
- 10.3343/kjlm.2010.30.5.511
- ISSN
- 1598-6535
- Abstract
- Jra is a high-frequency antigen found in all ethnic groups. However, the clinical significance of the anti-Jra antibody has remained controversial. Most studies have reported mild hemolytic disease of the newborn and fetus (HDNF) in Jra-positive patients. Recently, fatal cases of HDNF have also been reported. We report the first case of HDNF caused by anti-Jra alloimmunization in twins in Korea. A 33-yr-old nulliparous woman with no history of transfusion or amniocentesis was admitted at the 32nd week of gestation because of vaginal bleeding caused by placenta previa. Anti-Jra antibodies were detected in a routine laboratory examination. An emergency cesarean section was performed at the 34th week of gestation, and 2 premature infant twins were delivered. Laboratory examination showed positive direct antiglobulin test and Jr(a+) phenotype in the red blood cells and the presence of anti-Jra antibodies in the serum in both neonates. The infants underwent phototherapy for neonatal jaundice; this was followed by conservative management. They showed no further complications and were discharged on the 19th postpartum day. Preparative management to ensure the availability of Jr(a-) blood, via autologous donation, and close fetal monitoring must be performed even in cases of first pregnancy in Jr(a-) women.
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Collections - 2. Clinical Science > Department of Laboratory Medicine > 1. Journal Articles
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