AI Article Synopsis

  • The study focused on 56 patients with severe angina pectoris who were treated with gravitation plasmapheresis due to ineffective conservative therapy.
  • The researchers measured platelet aggregation and blood viscosity before treatment and on subsequent days to understand their roles in predicting patient outcomes.
  • Results indicated that higher blood viscosity and platelet aggregation were linked to better clinical improvement, while lower levels did not support stabilization in patients with progressive angina.

Article Abstract

The study was undertaken to examine 56 patients (mean age 54.9 +/- 1.1 years) who had functional class III (n = 12), IV (n = 32), and unstable (n = 12) angina pectoris. Due to inefficacy of conservative therapy, all the patients underwent gravitation plasmapheresis (GPA). The parameters of induced platelet aggregation were examined by the Born-O'Brien method and blood viscosity on a rotor viscometer before, immediately and on days 1 and 3 after GPA. It was found that the baseline blood viscosity and platelet aggregation should be known to predict the natural history of angina in the following 1-3 days after GPA. There was a pronounced positive clinical effect in higher blood viscosity and platelet aggregation. An improvement in the clinical course of the disease and its stabilization were not observed in the baseline lower blood viscosity and platelet in patients with progressive angina.

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