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Thromb Haemost 1989; 62(02): 767-771
DOI: 10.1055/s-0038-1646899
Original Article
Schattauer GmbH Stuttgart

Changes of Plasma Coagulation and Fibrinolysis in Response to Mental Stress

Christina Jern
The Department of Clinical Physiology, University of Göteborg, Östra Höspital, Göteborg, Sweden
,
Elsa Eriksson
*   The Department of Surgery, Östra and Sahlgren’s Hospitals, Göteborg, Sweden
,
Lilian Tengborn
**   The Coagulation Laboratory, Sahlgren’s Hospital, Göteborg, Sweden
,
Bo Risberg
*   The Department of Surgery, Östra and Sahlgren’s Hospitals, Göteborg, Sweden
,
Hans Wadenvik
The Department of Clinical Physiology, University of Göteborg, Östra Höspital, Göteborg, Sweden
,
Sverker Jern
The Department of Clinical Physiology, University of Göteborg, Östra Höspital, Göteborg, Sweden
› Author Affiliations
Further Information

Publication History

Received 15 November 1988

Accepted after revision 12 May 1989

Publication Date:
30 June 2018 (online)

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Summary

To study the effects of standardized mental stress (arithmetic and the Stroop color word test) on plasma coagulation and fibrinolysis, blood samples were obtained before, during, and after 20 minutes of mental stress from 10 healthy, non-smoking young males aged 22 to 30 years. Reactions were compared with those observed during physical exercise and infusion of adrenaline. Both von Willebrand factor antigen and factor VIII coagulant activity increased significantly in response to mental stress (95 ± 28 vs 123 + 56%; p <0.05 and 125 ±54 vs 217 ± 170%; p <0.05, respectively). There was also a significant increase of factor VII coagulant activity (86 ± 31 vs 108 + 51%; p <0.05). Furthermore, mental stress caused an activation of the fibrinolytic system with an elevation of tissue plasminogen activator activity and tissue plasminogen activator antigen (0.80 ± 0.48 vs 1.23 ± 0.96 IU/ml; p = 0.076 and 4.38 ± 1.87 vs 5.78 ± 2.58 IU/ml; p <0.01). Fibrinogen concentration increased during stress (1.95 ± 0.29 vs 2.11 ± 0.27 g/1; p <0.05). Similar but more pronounced responses were observed during exercise and adrenaline infusion. Parallel to the increases in coagulation and fibrinolytic factors there were significant increases in heart rate, and systolic and diastolic blood pressure. It is concluded that mental stress has significant effects on plasma coagulation and fibrinolysis, and that it could thus affect important risk factors for cardiovascular disease.

Keywords

Mental stress - Psychosocial factors - Blood coagulation factors - Fibrinolysis
 

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