Influence of Videofilm-Induced Emotional Stress on the Flow Properties of Blood

Ehrly, A. M.; Landgraf, H.; Hessler, J.; Saeger-Lorenz, K.
April 1988
Angiology;Apr1988, Vol. 39 Issue 4, p341
Academic Journal
The hemorheologic effects of emotional stress induced by a videofilm were investigated in 10 healthy volunteers. Blood samples were obtained from the antecubital vein before, during, and after the end of the videofilm. Blood pressure and heart rate were simultaneously measured. There was a statistically significant increase in blood and plasma viscosity during and immediately after the end of the videofilm, which correlated with an increase in plasma catecholamine concentrations. This hemorheologic behavior can be explained as a result of an endogenous hemoconcentration that takes place if the Starling equilibrium of intravascular vs extravascular fluid is changed. These observations could lead to new aspects of the pathophysiology of acute myocardial infarction initiated by severe emotional stress.


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