Gynecological and obstetric outcome in the French cohort of women with factor XIII deficiency

Lucia Rugeri, Christophe Martinaud, Philippe Beurrier, Yvonne Borg, Hervé Chambost, Mirela Chirila-Hetsch, Dominique Desprez, Annie Harroche, Vanessa Milien, Brigitte Pan-Petesch, Sandrine Meunier
Thrombosis Research 2020 April 21, 191: 22-25

INTRODUCTION: Congenital factor XIII deficiency is a very rare bleeding disorder affecting 33 patients in France. Besides its role in fibrin clot stabilization, factor XIII is involved in placental attachment. Fetal miscarriages represent a frequent and concerning issue for these patients. The aim of the present study was to describe clinical characteristics of women presenting severe congenital FXIII deficiency in France, to focus on gynecological and obstetrical events, and to report the management of these rare situations.

METHODS: We conducted a retrospective study in the French Hemophilia Comprehensive Care and Clinical Hemostasis Centers. Women between 15 and 65 years with factor XIII activity <10 IU dL-1 were included. Biological, clinical and therapeutic events that occurred to these patients during their gynecological and obstetrical period were recorded.

RESULTS: Among 31 centers, eleven patients were included. The median age at diagnosis was 1.5 years (range: 0-35), and at inclusion it was 30 years (range: 15-63). Fetal miscarriage was the primary manifestations in 2 (18%) patients, the remaining were diagnosed during hemorrhage. Menorrhagias were reported by 2 women (27%), 13 pregnancies were reported by 9 women including one abortion. Every pregnancy was conducted under factor XIII substitution, no hemorrhagic episode was reported. Four patients (36%) experienced at least one fetal miscarriage with a total amount of 30 miscarriages with 6 occurring during substitution.

CONCLUSION: Altogether, our data confirmed the high incidence of miscarriage in women with factor XIII deficiency. Good outcome of pregnancies required prophylaxis in accordance with international guidelines.

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