von Willebrand disease in the developing world

Area of Science:

• Hematology
• Epidemiology
• Global Health

Background:

• Von Willebrand disease (VWD) is the most prevalent inherited bleeding disorder globally.
• Epidemiological data and the impact of VWD in developing countries are scarce.
• The diagnosis of VWD is challenging due to its biological heterogeneity and varied clinical presentations.

Purpose of the Study:

• To highlight the limited data on VWD epidemiology in developing countries.
• To underscore the diagnostic challenges and lower diagnosis rates in these regions.
• To emphasize the need for improved awareness, support, and research for VWD patients in developing nations.

Main Methods:

• Review of existing epidemiological data on VWD in developing countries.
• Analysis of diagnostic challenges and treatment modalities.
• Assessment of healthcare system support and awareness levels.

Main Results:

• Diagnosed VWD cases in developing countries represent only 6% to 13% of expected hereditary bleeding disorder patients.
• Accurate VWD subtyping is often not feasible, with a higher prevalence of severe disease noted, especially in regions with consanguinity.
• Treatment options include plasma, factor concentrates, and desmopressin (DDAVP), with preliminary genetic data indicating population-specific differences.

Conclusions:

• There is a significant underdiagnosis and underreporting of VWD in developing countries.
• Inadequate healthcare awareness and support systems exacerbate the challenges faced by VWD patients.
• Concerted scientific and social efforts are crucial to improve the management and outcomes of VWD globally, particularly in resource-limited settings.