Journal
CLINICAL AND LABORATORY HAEMATOLOGY
Volume 26, Issue 6, Pages 407-411Publisher
BLACKWELL PUBLISHING LTD
DOI: 10.1111/j.1365-2257.2004.00643.x
Keywords
idiopathic thrombocytopenic purpura; vinca alkaloids
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The aim of the study was to evaluate the application of vincristin or vinblastin in patients with chronic idiopathic thrombocytopenic purpura (ITP). resistant to corticosteroids or with partial contraindication to their application. Twenty-two patients were treated with vincristin or vinblastin in doses of 2 and 10 mg, respectively. Eight of these patients were additionally administered prednisone in an oral dose of 0.5 mg/kg body mass (bm). Two-hour intravenous infusions of drugs were made once a week. at least three times. In every patient. the platelet count was evaluated before and after the three infusions. A rise of the platelet count of at least 100 x 10(9)/l was assumed to signify improvement. Statistically significant improvement (P < 0.01) was obtained in nine (41%) patients (including five (35%) patients treated with vinca alkaloids only and in four (50%) patients treated with vincristin and corticosteroids). On the average. 8 weeks after the termination of the treatment there was a 40% drop in the platelet. Patients with a shorter duration of the disease and without detectable platelet antibodies responded well to the treatment more frequently. Minor complications were observed in five patients (23%). notably in the form of paresthesia. Leukopenia was not present. Vinca alkaloids could find their application in clinical situations requiring short-term increase of the platelet count in chronically ill patients with ITP, resistant to corticosteroids or with counterindication to their application.
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