[Haemophilia A, B or von Willebrand disease type 3. Census of patients in the eastern part of Germany].
Diagnostics and treatment of severe forms of haemorrhagic diatheses (HD), such as haemophilia A, B or type 3 von Willebrand disease (VWD) need high standards in haemophilia treatment centers (HTCs). Due to their generally low incidence, a close cooperation of haemophilia treaters is needed to optimize treatment strategies. For this purpose, the Kompetenznetz Hämorrhagische Diathesen Ost was founded. The first project was the conduction of a survey of epidemiological data of patients with HA, HB and type 3 VWD in all HTCs in the eastern part of Germany.


METHODS
The study assessed the data regarding numbers of patients treated with HA, HB or type 3 VWD, disease severity, regime of coagulation factor replacement (CFR) and the frequency of factor VIII and IX inhibitors.


RESULTS
Up to now, data of 838 patients from 27 HTCs were evaluated (5-151 per HTCs). Among the included patients, 201 were children or adolescents (<18 years). 81 children suffered from severe HA, 20 from severe HB and 10 from type 3 VWD. In 637 adults we found 246 with severe HA, 51 severe HB and 28 VWD of type 3. The most commonly used treatment of CFR in patients with severe disease was prophylactic modality. 90% of the children received prophylaxis, but also in 64% of the adults an intermittent or long-term secondary prophylaxis was the preferred treatment. At the time of survey conduction, a factor VIII or IX inhibitor was present in 1.9% of the children and in 1.6% of the adults with haemophilia.


CONCLUSIONS
Our data allow an overview of the number of patients and treatment strategies in the eastern part of Germany.
Scholz
U
U
Praxis für Blutgerinnungsstörungen, Leipzig.
Syrbe
G
G
Koscielny
J
J
Klamroth
R
R
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D019352:Censuses; D002648:Child; D002675:Child, Preschool; D015897:Comorbidity; D005260:Female; D005858:Germany / Q000453:epidemiology; D006467:Hemophilia A / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control*; D002836:Hemophilia B / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D015995:Prevalence; D018570:Risk Assessment; D012307:Risk Factors; D016896:Treatment Outcome; D055815:Young Adult; D056729:von Willebrand Disease, Type 3 / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control*