Hong Kong Med J 2011;17:189–94 | Number 3, June 2011
A synopsis of current haemophilia care in Hong Kong
WY Au, Vincent Lee, Bonnie Kho, Alvin SC Ling, Desmond Chan, Eric YT Chan, Godfrey CF Chan, Winnie WW Cheung, CW Lau, CY Lee, Rever CH Li, CK Li, SY Lin, Vivien Mak, Lina Sun, Kris HF Wong, Raymond Wong, Jeffrey Yau, HL Yuen
Department of Medicine, Queen Mary Hospital, Hong Kong
OBJECTIVE. To provide a synopsis of current haemophilia care in Hong Kong.
DESIGN. Retrospective survey.
SETTING. All haematology units of the Hospital Authority in Hong Kong.
PATIENTS. All patients with haemophilia A and haemophilia B.
RESULTS. To date, there were 222 mild-to-severe haemophilia patients (192 type A, 30 type B) under regular public care in Hong Kong (43% were considered severe, 33% moderate, and 24% mild), which gave a crude prevalence of 6.8/100 000 male inhabitants. A total of 12.8 million units of Factor VIII and 3 million units of Factor IX were prescribed annually. This amounts to 1.83 units of FVIII per capita of the population, which is comparable to that of other developed countries. Leading causes of mortality were human immunodeficiency virus–related complications (10 cases) and cerebral bleeding (2 cases). The life expectancy of patients with severe haemophilia in Hong Kong is improving; currently the oldest patient is 60 years old. Such improved survival may be due to enhanced factor availability, prompt treatment of bleeding episodes at home, safer factor products, and better antiviral treatment. Primary prophylaxis is the accepted standard of care for severe and moderate cases, and "Factor First" has become hospital policy. However, 12 patients continue to present treatment challenges, due to the documented presence of factor inhibitors. In all, 28, 100, and 14 cases respectively were positive for human immunodeficiency virus, hepatitis C virus, and hepatitis B virus; the youngest patients with the corresponding infections being 28, 13, and 22 years old. Comprehensive care with dedicated physiotherapy, surgical support, and radionucleotide synovectomy may reduce morbidity further.
CONCLUSION. A multidisciplinary approach can further improve the future care for haemophilia patients in Hong Kong.
Key words: Factor VIII; Hemophilia A; HIV infections; Mutation; Survival rate
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