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Treatment outcomes in patients with adult thrombotic thrombocytopenic purpura-hemolytic uremic syndrome.
Archives of Internal Medicine 1994 May 10
BACKGROUND: Plasma treatment has improved the outcomes in adults with thrombotic thrombocytopenic purpura (TTP)-hemolytic uremic syndrome (HUS). We reviewed our experience in treating unselected patients to determine the clinical outcomes and to evaluate the treatments given in addition to plasma.
METHODS: A chart review of all cases of TTP and HUS in adults treated at the Toronto (Ontario) Hospital, the largest treatment center for adults with TTP-HUS in the province of Ontario, was conducted.
RESULTS: Sixty-seven episodes of TTP-HUS in 52 consecutive adult patients were treated during a 12-year period. Plasma was the primary form of therapy, and most patients received plasma exchange. A complete hematologic remission was achieved in 65 of 67 episodes; however, two patients in remission were brain-dead. The time to complete remission varied from 3 to 58 days (median, 13 days). The death rate during the acute illness was 8%. Long-term sequelae included relapses, persisting renal impairment, hepatitis, and transfusion-associated acquired immunodeficiency syndrome. Relapses occurred in 21% of patients during a median follow-up of 1.1 years (range, 0.1 to 18 years). Analyses of the treatment given in addition to plasma did not demonstrate a significant benefit in terms of reducing the illness duration, mortality, or long-term sequelae.
CONCLUSION: While most patients recovered from TTP-HUS, deaths still occurred and many patients suffered long-term complications. The role of the treatments given in addition to plasma is uncertain.
METHODS: A chart review of all cases of TTP and HUS in adults treated at the Toronto (Ontario) Hospital, the largest treatment center for adults with TTP-HUS in the province of Ontario, was conducted.
RESULTS: Sixty-seven episodes of TTP-HUS in 52 consecutive adult patients were treated during a 12-year period. Plasma was the primary form of therapy, and most patients received plasma exchange. A complete hematologic remission was achieved in 65 of 67 episodes; however, two patients in remission were brain-dead. The time to complete remission varied from 3 to 58 days (median, 13 days). The death rate during the acute illness was 8%. Long-term sequelae included relapses, persisting renal impairment, hepatitis, and transfusion-associated acquired immunodeficiency syndrome. Relapses occurred in 21% of patients during a median follow-up of 1.1 years (range, 0.1 to 18 years). Analyses of the treatment given in addition to plasma did not demonstrate a significant benefit in terms of reducing the illness duration, mortality, or long-term sequelae.
CONCLUSION: While most patients recovered from TTP-HUS, deaths still occurred and many patients suffered long-term complications. The role of the treatments given in addition to plasma is uncertain.
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