PMID- 19718479 OWN - NLM STAT- MEDLINE DCOM- 20091125 LR - 20220318 IS - 0340-6245 (Print) IS - 0340-6245 (Linking) VI - 102 IP - 3 DP - 2009 Sep TI - Levels of von Willebrand factor antigen and von Willebrand factor cleaving protease (ADAMTS13) activity predict clinical events in chronic heart failure. PG - 573-80 LID - 10.1160/TH09-01-0036 [doi] AB - Decreased activity of ADAMTS13, the von Willebrand factor (VWF) cleaving protease, was recently reported in cardiovascular diseases and in hepatic failure. Chronic heart failure (CHF) is characterised by abnormalities of left ventricular function accompanied by the failure of the liver and dysregulation of endothelial activation. Therefore, the aim of our study was to measure ADAMTS13 activity in CHF, and determine the prognostic value of VWF and ADAMTS13 on major clinical events in CHF. ADAMTS13 activity (measured by FRETS-VWF73 substrate) was decreased in CHF (n = 152, left ventricular ejection fraction <45%), and it correlated negatively with B-type natriuretic peptide (BNP) NYHA (New York Heart Association) classes, markers of synthetic capacity of the liver and endothelial dysfunction (all p < 0.005). Both, high VWF:Ag levels (hazard ratio [HR] 1.52, 95% confidence interval [CI] 1.189-1.943), and low ADAMTS13/VWF:Ag ratios (HR 0.70, 95% CI 0.58-0.84) independently and significantly predicted short-term (1 year follow-up) clinical adverse events in heart failure (HF). Decreased activity of ADAMTS13 with concomitant high VWF:Ag levels is a significant independent predictor of clinical events in CHF. The levels of the two molecules may integrate the impaired synthetic capacity of the liver and the disturbed endothelial regulation and can therefore be a useful tool to predict clinical events in CHF. FAU - Gombos, Timea AU - Gombos T AD - IIIrd Department of Internal Medicine, Semmelweis University, H-1125 Budapest, Hungary. FAU - Mako, Veronika AU - Mako V FAU - Cervenak, Laszlo AU - Cervenak L FAU - Papassotiriou, Jana AU - Papassotiriou J FAU - Kunde, Jan AU - Kunde J FAU - Harsfalvi, Jolan AU - Harsfalvi J FAU - Forhecz, Zsolt AU - Forhecz Z FAU - Pozsonyi, Zoltan AU - Pozsonyi Z FAU - Borgulya, Gabor AU - Borgulya G FAU - Janoskuti, Livia AU - Janoskuti L FAU - Prohaszka, Zoltan AU - Prohaszka Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Thromb Haemost JT - Thrombosis and haemostasis JID - 7608063 RN - 0 (Biomarkers) RN - 0 (von Willebrand Factor) RN - EC 3.4.24.- (ADAM Proteins) RN - EC 3.4.24.87 (ADAMTS13 Protein) RN - EC 3.4.24.87 (ADAMTS13 protein, human) SB - IM MH - ADAM Proteins/*biosynthesis MH - ADAMTS13 Protein MH - Aged MH - Biomarkers/metabolism MH - Chronic Disease MH - Cohort Studies MH - Endothelium, Vascular/pathology MH - Female MH - Heart Failure/*blood/diagnosis MH - Humans MH - Male MH - Middle Aged MH - Models, Biological MH - Risk MH - Treatment Outcome MH - von Willebrand Factor/*biosynthesis EDAT- 2009/09/01 06:00 MHDA- 2009/12/16 06:00 CRDT- 2009/09/01 09:00 PHST- 2009/09/01 09:00 [entrez] PHST- 2009/09/01 06:00 [pubmed] PHST- 2009/12/16 06:00 [medline] AID - 09-01-0036 [pii] AID - 10.1160/TH09-01-0036 [doi] PST - ppublish SO - Thromb Haemost. 2009 Sep;102(3):573-80. doi: 10.1160/TH09-01-0036.