Document Detail


Exercise in claudicants is accompanied by excessive thrombin generation.
MedLine Citation:
PMID:  12917829     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: exercise in IC leads to ischaemia-reperfusion injury of leg muscles and a systemic inflammatory response, but the effect of on coagulation is unknown. OBJECTIVE: to compare the effect of exercise on thrombin formation and fibrin turnover in patients with IC (n = 10), and age and sex matched smokers ([S] n = 5) and non-smokers ([NS] n = 5) without peripheral vascular disease. METHODS: blood was taken from subjects 60 and 30 min before, and 1, 5, 20, 40, 60 and 120 min after, treadmill exercise. Markers of thrombin generation (thrombin-antithrombin complexes [TAT] and prothrombin fragments 1 + 2 [PF1 + 2]) and fibrin turnover (D-dimer and fibrin degradation products [FbDP]) were assayed at each time point. RESULTS: following exercise, thrombin generation was significantly greater in the claudicant group compared to the control groups (Area Under Curve [AUC] post exercise IC vs S vs NS; TAT 3960 vs 1623 vs 1476 vs = 0.007 Kruskal-Wallis [KW]; PF1 + 2 163 vs 107 vs 123 p = 0.024 KW). Pre and post-exercise, fibrin turnover in claudicants was similar to smoking controls, but higher than non-smoking controls. (AUC post exercise IC vs NS; D-dimer 6340 vs 2754 p = 0.055 Mann-Whitney U[MW]; FbDP 45113 vs 21511 p = 0.009 MW). CONCLUSION: when compared to non-claudicants, exercise in IC is associated with excessive production of thrombin. Despite this, claudicants have a similar level of fibrin turnover suggesting a possible defect in fibrinolysis. This prothrombotic state may contribute to the excess thrombotic morbidity and mortality suffered by claudicants.
Authors:
P Burns; T Wilmink; C Fegan; A W Bradbury
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery     Volume:  26     ISSN:  1078-5884     ISO Abbreviation:  Eur J Vasc Endovasc Surg     Publication Date:  2003 Aug 
Date Detail:
Created Date:  2003-08-14     Completed Date:  2003-11-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9512728     Medline TA:  Eur J Vasc Endovasc Surg     Country:  England    
Other Details:
Languages:  eng     Pagination:  150-5     Citation Subset:  IM    
Affiliation:
University Department of Vascular Surgery, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham B9 5SS, UK.
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MeSH Terms
Descriptor/Qualifier:
Aged
Exercise*
Fibrin / metabolism
Fibrinolysis
Humans
Intermittent Claudication / blood,  physiopathology*
Male
Middle Aged
Smoking / physiopathology
Thrombin / biosynthesis*
Chemical
Reg. No./Substance:
9001-31-4/Fibrin; EC 3.4.21.5/Thrombin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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