Clinical features and treatment of 70 children with lupus anticoagulant-hypoprothrombinemia syndrome: a retrospective study from a single center in China.

Background

Lupus anticoagulant-hypoprothrombinemia syndrome (LAHPS) is a rare acquired bleeding disorder characterized by the presence of lupus anticoagulant (LA) and acquired hypoprothrombinemia.

Objectives

To summarize the experience of diagnosis, clinical features, and treatment of lupus anticoagulant-hypoprothrombinemia syndrome (LAHPS).

Methods

A retrospective study of 70 children diagnosed with LAHPS from January 2019 to February 2024 at a single center was conducted.

Results

A total of 70 subjects (32 boys and 38 girls), with a mean age of 5.58 years, were included in the study. Among these subjects, 15 had autoimmune diseases (AIDs), 51 had infections, and 4 had unknown causes. Fifty-six of 70 (80%) subjects experienced bleeding with the median bleeding score of 4, 1 of 70 (1.4%) presented with thrombosis, and 13 of 70 (18.6%) were asymptomatic. All patients exhibited prolonged prothrombin time, significantly prolonged activated partial thromboplastin time, decreased factor (F)II activity (FII:C), and positive lupus anticoagulant. There was a weak negative correlation between the severity of bleeding and FII:C level (

Conclusion

Children develop LAHPS most commonly after AIDs and infection. Most patients presented with mild to moderate bleeding. The severity of bleeding symptoms was not exactly parallel to the decreased FII:C level.

Informations de copyright

© 2024 The Author(s).