Key result
Psychoemotional stress linked to increased blood and plasma viscosity and decreased red cell filterability.
Why the study?
The effects of prolonged psychoemotional stress on blood rheology and its potential impact on cardiovascular disease were not well characterized.
Does psychoemotional stress alter haemorheological parameters in healthy candidates?
Observational (n=13)
Does psychoemotional stress alter haemorheological parameters in healthy candidates?
Psychoemotional stress negatively impacts blood rheology by increasing viscosity and decreasing red cell filterability, which may contribute to cardiovascular disease risk.
Psychoemotional stress may elevate cardiovascular risk via rheology changes; hypothesis-generating and requires prospective confirmation.
Final exams were chosen as a model for psychoemotional stress. 13 healthy candidates were tested for haemorheological parameters (blood and plasma viscosity, red cell filterability, red cell aggregation) firstly just before the most crucial examination and secondly 3 weeks after the successful exams. The results indicate that stress increases blood and plasma viscosity and decreases filterability, while it leaves red cell aggregation unaltered. It could be postulated that psychoemotional stress exhibits its negative potential on cardiovascular disease partly through its ill effects on blood rheology.
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Ernst et al. (1984) conducted an observational in Healthy (n=13). Psychoemotional stress (final exams) vs. Unstressed state (3 weeks after successful exams) was evaluated on Haemorheological parameters (blood and plasma viscosity, red cell filterability, red cell aggregation). Psychoemotional stress during final exams increased blood and plasma viscosity and decreased red cell filterability compared to the unstressed state 3 weeks post-exams.
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