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Changes in hemorrheology in urticaria.

C H Liu1, W Su

  • 1Institute of Dermatology, Shanghai Medical University.

Chinese Medical Journal
|February 1, 1992
PubMed
Summary
This summary is machine-generated.

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Urticaria is linked to higher blood viscosity and platelet aggregation. These hemorrheological changes, including increased plasma viscosity and red blood cell aggregation, correlate with altered blood flow in skin microcirculation.

Area of Science:

  • Hematology
  • Dermatology
  • Rheology

Background:

  • Urticaria is a common skin condition.
  • Hemodynamics and blood flow are critical in microcirculation.
  • Changes in blood viscosity can impact various physiological processes.

Purpose of the Study:

  • To investigate hemorrheological parameters in patients with urticaria.
  • To assess platelet aggregation function in urticaria.
  • To explore the relationship between hemorrheological changes and cutaneous microcirculation.

Main Methods:

  • Studied hemorrheology in 41 urticaria cases.
  • Assessed platelet aggregation in 37 urticaria cases.
  • Measured whole blood viscosity, plasma viscosity, fibrinogen levels, and platelet aggregation.

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Main Results:

  • Whole blood viscosity (low shear stress), plasma viscosity, fibrinogen levels, and platelet aggregation were significantly increased (P < 0.05 - P < 0.005).
  • High blood viscosity is attributed to elevated plasma viscosity and increased red blood cell aggregation.
  • Observed hemorrheological changes correlated with altered cutaneous microcirculation, including slow blood flow and erythrocyte aggregation.

Conclusions:

  • Urticaria is associated with significant hemorrheological abnormalities.
  • Increased blood viscosity and platelet aggregation may contribute to the pathophysiology of urticaria.
  • These findings highlight the importance of hemorrheology in understanding urticaria and its microcirculatory effects.