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Alterations of the preoperative coagulation profile in patients with acute appendicitis
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Jianxin Li
Published/Copyright:
June 13, 2011
Abstract
Background: Acute appendicitis (AA) is usually associated with a systemic inflammatory response that often leads to activation of coagulation. However, limited data about coagulation changes in AA are available.
Methods: Results of preoperative coagulation testing in 702 patients with confirmed AA and 697 patients undergoing minor elective surgery (control) during the same period were analyzed retrospectively. Coagulation activity of factors VII, IX (FVII:C, FIX:C) and the concentration of plasma endotoxin from 40 patients with AA and 15 control subjects were measured.
Results: Compared with control subjects, prothrombin time (PT), fibrinogen (Fib) and endotoxin increased (all p<0.01), FVII:C decreased (p<0.05), and thrombin time shortened (p<0.01) significantly in patients with AA, which showed trends with increasing severity of disease. Areas under the receiver operating characteristic curve of Fib for discriminating complicated appendicitis or acute perforated appendicitis from enrolled patients were larger than those for leukocyte parameters. The concentration of endotoxin correlated negatively with FVII:C (r=−0.860, p<0.001), positively with PT (0.713, <0.001), and FVII:C negatively with PT (−0.729, <0.001) in individuals that were evaluated. The change in activated partial thromboplastin time and difference in FIX:C among patients with various pathological types of appendicitis were not significant.
Conclusions: Endotoxin-induced activation of the extrinsic coagulation pathway was present in patients with AA. Fib may be useful as a potential indicator for excluding complicated appendicitis.
Keywords: acute appendicitis; coagulation factor; coagulation screening tests; endotoxin; leukocyte parameters
Received: 2010-11-22
Accepted: 2011-03-23
Published Online: 2011-06-13
Published in Print: 2011-08-01
©2011 by Walter de Gruyter Berlin Boston
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Keywords for this article
acute appendicitis;
coagulation factor;
coagulation screening tests;
endotoxin;
leukocyte parameters
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