Abstract
The risk factors for haemorrhage in chronic idiopathic thrombocytopenic purpura (ITP) remain poorly understood. We classified 49 patients with chronic ITP into two groups on the basis of the presence (n = 11) or absence (n = 38) of hypertension and/or diabetes mellitus, and then analyzed their clinical and immunological characteristics. The patients with hypertension and/or diabetes were older than those without these complications. There were no significant differences between the two groups with regard to platelet count or the levels of platelet-associated immunoglobulin G, platelet-associated immunoglobulin M, and platelet-associated C3. Positivity for anti-glycoprotein IIb/IIIa and anti-glycoprotein Ib autoantibodies was also similar. However, severe purpura and a poor response to prednisolone were far more common in the patients with hypertension and/or diabetes. We conclude that ITP complicated by hypertension and/or diabetes may be resistant to prednisolone and thus require more careful treatment.
Published Version
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