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  • Title: [The relationship between responsiveness to splenectomy and clinical course after splenectomy in chronic idiopathic thrombocytopenic purpura (ITP)].
    Author: Nagasawa T, Kobayashi T, Satoh Y, Yanagisawa H, Nakazawa M, Abe T.
    Journal: Rinsho Ketsueki; 1990 Jul; 31(7):922-8. PubMed ID: 2214190.
    Abstract:
    Fifty-four ITP patients were treated by the protocol proposed by Japanese Idiopathic Disease of Hematopoietic Organ Research Committee. Forty-eight patients were treated with corticosteroid (CS). Twenty-eight patients out of 30 patients who were refractory to CS were splenectomized. To study natural courses of splenectomized patients, 25 patients were splenectomized without elevation of platelet counts at the operation and were followed up their platelet counts and PAIgG for one month without treatment. Clinical courses after splenectomy were classified into four types by the platelet increment followed by splenectomy and the platelet counts at one month after splenectomy; type I (markedly over-shooted platelet peak and normalized platelet counts), type II (moderate platelet peak and 50 approximately 100 x 10(3)/microliters platelets), type III (minimal platelet peak and less than 50 x 10(3)/microliters platelets), and type IV (elevation of platelet counts at day 7 or later of splenectomy and normalized platelet counts). The results of analyses from 25 patients indicated that the numbers of type I, II, III and IV were 10, 5, 6 and 4, respectively. The clinical course of type IV suggests that platelet production may be impaired by anti-platelet antibodies.
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