期刊
JOURNAL OF THROMBOSIS AND HAEMOSTASIS
卷 7, 期 5, 页码 766-773出版社
WILEY
DOI: 10.1111/j.1538-7836.2009.03317.x
关键词
cost of illness analysis; costs of HIT; heparin; heparin-induced thrombocytopenia
资金
- Organon International
- Department of Cardiovascular Medicine
Background and objectives: Due to the complexity of heparin-induced thrombocytopenia (HIT), currently available cost analyses are rough estimates. The objectives of this study were quantification of costs involved in HIT and identification of main cost drivers based on a patient-oriented approach. Methods: Patients diagnosed with HIT (1995-2004, University-hospital Greifswald, Germany) based on a positive functional assay (HIPA test) were retrieved from the laboratory records and scored (4T-score) by two medical experts using the patient file. For cost of illness analysis, predefined HIT-relevant cost parameters (medication costs, prolonged in-hospital stay, diagnostic and therapeutic interventions, laboratory tests, blood transfusions) were retrieved from the patient files. The data were analysed by linear regression estimates with the log of costs and a gamma regression model. Mean length of stay data of non-HIT patients were obtained from the German Federal Statistical Office, adjusted for patient characteristics, comorbidities and year of treatment. Hospital costs were provided by the controlling department. Results and conclusions: One hundred and thirty HIT cases with a 4T-score >= 4 and a positive HIPA test were analyzed. Mean additional costs of a HIT case were 9008 Euro. The main cost drivers were prolonged in-hospital stay (70.3%) and costs of alternative anticoagulants (19.7%). HIT was more costly in surgical patients compared with medical patients and in patients with thrombosis. Early start of alternative anticoagulation did not increase HIT costs despite the high medication costs indicating prevention of costly complications. An HIT cost calculator is provided, allowing online calculation of HIT costs based on local cost structures and different currencies.
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