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Clinical features of severe acquired ADAMTS13 deficiency in thrombotic thrombocytopenic purpura: the Korean TTP registry experience.
MedLine Citation:
PMID:  21287408     Owner:  NLM     Status:  Publisher    
The clinical significance of ADAMTS13 activity for response to treatment, mortality rate, recurrence, and prognosis is unclear. Therefore, we investigated the characteristics of severe ADAMTS13 deficiency and evaluated its prognostic features in Thrombotic thrombocytopenic purpura (TTP). The Korean TTP Registry includes 66 patients from 13 teaching hospitals in Korea who received the diagnosis of TTP from January 2005 to December 2008. Blood samples obtained upon admission were sent for ADAMTS13 analysis (multimer analysis by sodium dodecyl sulfate electrophoresis) to a central laboratory along with patient clinical information. Patients with severe ADAMTS13 deficiency had lower serum creatinine levels (P = 0.001) than patients with non-severe ADAMTS13 deficiency. Although severe ADAMTS13 deficiency was associated with better response rate (75 vs. 53%, P = 0.145), remission rate (81 vs. 61%, P = 0.209), and mortality rate (19 vs. 31%, P = 0.508) than non-severe ADAMTS13 deficiency, treatment outcomes did not differ significantly between groups. After adjusting for clinical and laboratory features, multivariate analysis did not reveal any independent risk factors for TTP-associated mortality. Patients with severe ADAMTS13 deficiency had lower serum creatinine levels at presentation, but severe ADAMTS13 activity deficiency at TTP diagnosis does not appear to have prognostic significance.
Moon Ju Jang; So Young Chong; In-Ho Kim; Jee-Hyun Kim; Chul-Won Jung; Ja Young Kim; Ji-Chan Park; Sun Min Lee; Yeo-Kyeoung Kim; Ji-Eun Lee; Sung-Su Jang; Jin-Seok Kim; Deog-Yeon Jo; Dae-Young Zang; Young-Yiul Lee; Ho-Young Yhim; Doyeun Oh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-3
Journal Detail:
Title:  International journal of hematology     Volume:  -     ISSN:  1865-3774     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111627     Medline TA:  Int J Hematol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Internal Medicine, School of Medicine, CHA University, Seongnam, Korea.
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