[Von Willebrand disease].

Area of Science:

• Hematology
• Vascular Biology
• Genetics

Background:

• Von Willebrand factor (VWF) is crucial for primary hemostasis and serves as a carrier for coagulation factor VIII.
• Von Willebrand disease (VWD) is the most prevalent inherited bleeding disorder, stemming from quantitative or qualitative VWF defects.
• VWD manifests as mucocutaneous bleeding, excessive bleeding post-trauma, and severe forms can cause gastrointestinal bleeding or hemarthrosis.

Purpose of the Study:

• To summarize the role of VWF in hemostasis and VWD.
• To outline diagnostic approaches and classification of VWD.
• To describe current treatment strategies for VWD.

Main Methods:

• Review of literature on VWF function, VWD pathophysiology, diagnosis, and treatment.
• Analysis of diagnostic criteria including clinical symptoms and laboratory assays.
• Examination of therapeutic options such as desmopressin and VWF concentrates.

Main Results:

• VWF plays a dual role in platelet adhesion, aggregation, and factor VIII transport.
• Diagnosis requires integrating clinical presentation with laboratory findings (VWF activity, antigen, FVIII activity).
• VWD classification into types (1, 2A, 2B, 2M, 2N, 3) guides tailored management strategies.

Conclusions:

• Understanding VWF's role is key to diagnosing and managing VWD.
• Accurate classification of VWD subtypes is essential for effective treatment selection.
• Treatment modalities aim to increase VWF levels or replace deficient VWF and factor VIII.