Thromb Haemost 2004; 92(06): 1327-1335
DOI: 10.1160/TH04-04-0223
Blood Coagulation, Fibrinolysis and Cellular Haemostasis
Schattauer GmbH

The effect of natural habituation on coagulation responses to acute mental stress and recovery in men

Roland von Känel
1   Department of General Internal Medicine, University Hospital Berne, Switzerland
2   Institute for Behavioral Sciences, Federal Institute of Technology, Zurich, Switzerland
,
Daniel Preckel
2   Institute for Behavioral Sciences, Federal Institute of Technology, Zurich, Switzerland
,
Lilian Zgraggen
2   Institute for Behavioral Sciences, Federal Institute of Technology, Zurich, Switzerland
,
Katharina Mischler
2   Institute for Behavioral Sciences, Federal Institute of Technology, Zurich, Switzerland
,
Brigitte M. Kudielka
2   Institute for Behavioral Sciences, Federal Institute of Technology, Zurich, Switzerland
,
André Haeberli
3   Thrombosis Research Laboratory, University Hospital Berne, Switzerland
,
Joachim E. Fischer
2   Institute for Behavioral Sciences, Federal Institute of Technology, Zurich, Switzerland
› Institutsangaben

Financial support: This work was supported by grant 32-68277 of the Swiss Natural Science Foundation and by the Federal Institute of Technology, Zurich, Switzerland.
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Publikationsverlauf

Received 08. April 2004

Accepted after revision 19. September 2004

Publikationsdatum:
02. Dezember 2017 (online)

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Summary

Blood coagulation activation might be one mechanism linking acute mental stress with coronary events. We investigated the natural habituation of coagulation responses and recovery to short-term mental stress.Three times with one-week intervals, 24 men (mean age 47 ± 7 years) underwent the same 13-min stressor (preparation, job interview, mental arithmetic). During each visit venous blood was obtained four times (baseline, immediately post-stress, 45 min of recovery, 105 min of recovery). Eight blood coagulation parameters were measured at weeks one and three. Acute stress provoked increases in von Willebrand factor antigen, fibrinogen, clotting factor FVII activity (FVII:C), FVIII:C, FXII:C (p’s ≤0.019), and D-dimer (N.S.). All coagulation parameters experienced full recovery except FVIII:C (p = 0.022). Stress did not significantly affect activated partial thromboplastin time and prothrombin time. At all time points FVIII:C and FXII:C levels were significantly higher at week one compared to week three (p’s ≤0.041). Before catheter insertion, systolic blood pressure (p = 0.001) and heart rate (p = 0.026) were relatively higher at week one. Unlike the magnitude of systolic blood pressure response to stress (p = 0.007) and of cortisol recovery from stress (p = 0.002), the magnitude of all coagulation responses to stress and the recovery from stress were similar in week one and week three. Sympathetic activation with anticipatory stress best explained increased baseline activity in FVIII and FXII at week one. An incapacity of the coagulation system to adapt to stress repeats is perhaps a consequence of evolution, but might also contribute to increased coronary risk in some individuals, particularly in those with cardiovascular diseases.