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Published on: April 1, 2015
Clinical Features and Management of Congenital Fibrinogen Deficiencies
Alessandro Casini1, Philippe de Moerloose1, Marguerite Neerman-Arbez2
1Division of Angiology and Haemostasis, University Hospitals and Faculty of Medicine, Geneva, Switzerland.
Insights
Congenital fibrinogen disorders, affecting fibrinogen quantity or quality, present diverse clinical issues from bleeding to thrombosis. Management requires personalized strategies, often using fibrinogen concentrates for bleeding.
Area of Science:
- Hematology
- Rare Diseases
- Genetics
Background:
- Congenital fibrinogen disorders are rare genetic conditions impacting plasmatic fibrinogen levels or function.
- These disorders encompass afibrinogenemia, hypofibrinogenemia, dysfibrinogenemia, and hypodysfibrinogenemia, each with unique clinical profiles.
- Manifestations range from asymptomatic presentations to severe bleeding, thrombosis, and specific organ complications.
Purpose of the Study:
- To review the diverse clinical manifestations of congenital fibrinogen disorders.
- To discuss the diagnostic challenges and management strategies for these rare conditions.
- To highlight the importance of personalized treatment approaches based on individual patient factors.
Main Methods:
- Literature review of congenital fibrinogen disorders.
- Analysis of clinical presentations, diagnostic criteria, and management guidelines.
- Expert consensus-based recommendations for treatment.
Main Results:
- Afibrinogenemia often presents with neonatal bleeding; hypofibrinogenemia may be asymptomatic.
- Dysfibrinogenemia exhibits heterogeneous symptoms, including bleeding, thrombosis, and organ-specific complications.
- Hypodysfibrinogenemia can involve both bleeding and thrombotic events.
- Pregnancy in affected women poses significant risks.
- Plasma-derived fibrinogen concentrates are recommended for bleeding management.
Conclusions:
- Congenital fibrinogen disorders require individualized management plans.
- Treatment strategies must consider patient history, genotype, and clinical status.
- Plasma-derived fibrinogen concentrates are crucial for managing bleeding episodes.
- Thrombosis management presents unique challenges in these patients.
Abstract:
Congenital fibrinogen disorders are rare diseases affecting either the quantity (afibrinogenemia and hypofibrinogenemia) or the quality (dysfibrinogenemia) or both (hypodysfibrinogenemia) of plasmatic fibrinogen. Afibrinogenemia is often diagnosed at birth following prolonged umbilical cord bleeding and is characterized by spontaneous bleeding in all tissues, while hypofibrinogenemic patients are more often asymptomatic. Spontaneous spleen ruptures, painful bone cysts, cardiovascular events, and intrahepatic inclusions can complicate the clinical course of patients with quantitative fibrinogen disorders. Clinical manifestations of dysfibrinogenemia are very heterogeneous, from absence of symptoms to major bleeding or thrombosis, chronic thromboembolic pulmonary hypertension, and renal amyloidosis. Hypodysfibrinogenemic patients can suffer from both major bleeding and recurrent thrombosis. Pregnancy of women with congenital fibrinogen disorders is a high-risk situation. Owing to the absence of controlled randomized studies, clinical management is mainly based on expert consensus. For the treatment and/or the prevention of bleeding, plasma-derived fibrinogen concentrates are the optimal choice. Treatment of thrombosis may be challenging. More specifically, management strategies should be tailored to each patient, taking the personal and familial history of bleeding and thrombosis, the genotype, and the specific clinical situation into account.
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