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Microangiopathic hemolytic anemia in pregnancy
Mohammed Salhab1, Andrew Hsu2, Elizabeth Ryer2
1University of Massachusetts Medical School, Department of Medicine, United States; University of Massachusetts Medical School, Department of Hematology and Oncology, United States.
Summary
Microangiopathic hemolytic anemia (MAHA) in pregnancy is challenging. A case suggests congenital ADAMTS13 deficiency, identified late in pregnancy, is a potential cause of MAHA during gestation.
Area of Science:
- Hematology
- Obstetrics
- Genetics
Background:
- Microangiopathic hemolytic anemia (MAHA) presents diagnostic challenges in pregnancy due to overlapping conditions.
- Pregnancy can influence ADAMTS13 enzyme activity through various physiological factors.
Observation:
- A pregnant patient at 37 weeks gestation presented with MAHA.
- Extremely low ADAMTS13 enzyme activity was detected post-delivery without evidence of an inhibitor.
Findings:
- The persistent, severe deficiency of ADAMTS13 enzyme activity post-delivery strongly indicated a congenital deficiency.
- This case highlights a likely congenital ADAMTS13 deficiency manifesting during late pregnancy.
Implications:
- Congenital ADAMTS13 deficiency should be considered in pregnant patients with unexplained MAHA.
- Early diagnosis and management are crucial for maternal and fetal well-being in such cases.
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