BMC Pregnancy and Childbirth (Dec 2021)

Pregnancy-associated thrombotic thrombocytopenic purpura complicated by Sjögren’s syndrome and non-neutralising antibodies to ADAMTS13: a case report

  • Lu Zhou,
  • Yu Zhu,
  • Miao Jiang,
  • Jian Su,
  • Xiaofan Liu,
  • Yizhi Jiang,
  • Hui Mu,
  • Jie Yin,
  • Li Yang,
  • Haiyan Liu,
  • Weidong Pan,
  • Min Su,
  • Hong Liu

DOI
https://doi.org/10.1186/s12884-021-04167-9
Journal volume & issue
Vol. 21, no. 1
pp. 1 – 6

Abstract

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Abstract Background Thrombotic thrombocytopenic purpura (TTP) is a severe and life-threatening disease. Given its heterogeneous clinical presentation, the phenotype of TTP during pregnancy and its management have not been well documented. Case presentation We report here a 25-year-old woman, G1P0 at 36 weeks gestation, who developed severe thrombocytopenia and anemia. She was performed an emergent caesarean section 1 day after admission because of multiple organ failure. As ADAMTS 13 enzyme activity of the patient was 0% and antibodies were identified by enzyme-linked immunosorbent assay, she was diagnosed as acquired thrombotic thrombocytopenic purpura (aTTP). Furthermore, asymptomatic primary Sjögren’s syndrome was incidentally diagnosed on screening. After treatment with rituximab in addition to PEX and steroids, the activity of the ADAMTS 13 enzyme increased significantly from 0 to 100%. Conclusions To the best of our knowledge, this is the first case report of concomitant TTP and asymptomatic Sjögren’s syndrome in a pregnant woman. It highlights the association between pregnancy, autoimmune disease, and TTP. It also emphasizes the importance of an enzyme-linked immunosorbent assay in the diagnosis and rituximab in the treatment of patients with acquired TTP.

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