• M T Sartori, S M Teresa, M Milan, M Marta, E de Bon, D B Emiliano, M Fadin, F Mariangela, R Pesavento, P Raffaele, E Zanon, and Z Ezio.
• 2nd Chair of Internal Medicine, Department of Cardiac, Thoracic and Vascular Sciences, University Hospital of Padua, Padua, Italy.
• Haemophilia. 2015 Jan 1; 21 (1): 88-94.

AbstractThrombotic events in congenital hypo-afibrinogenemia have been rarely reported, either in association or not with replacement therapy or thrombotic risk factors. We describe clinical findings and management of thrombosis of abdominal aorta with peripheral embolism in a patient with congenital afibrinogenemia. A review of arterial thrombosis in inherited hypo-afibrinogenemia was also performed. The patient with a severe bleeding history requiring prophylaxis with fibrinogen concentrates (FC) was admitted for ischaemia of the 4th right toe. An angio-CT of abdominal aorta showed a thrombosis from the origin of renal arteries to the carrefour with a distal floating part. No thrombotic risk factors were found; a previous traumatic lesion of aortic wall might have triggered the thrombus formation, whereas the role of FC prophylaxis remains uncertain. The patient was successfully treated with FC, enoxaparin followed by fondaparinux, and low-dose aspirin without bleeding or thrombosis recurrence. After 2 years, aortic thrombus was almost completely recovered. Sixteen hypo/afibrinogenemia patients with arterial thrombosis were found in Literature, showing that thrombosis often occurs at a young age, involves large vessels, its recurrence is not unusual, and therapeutic strategy is not defined yet. Our therapeutic approach was effective and also safe, but further studies are needed to improve the knowledge of pathogenesis and the anti-thrombotic management in this peculiar setting.© 2014 John Wiley & Sons Ltd.

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