Abstract
Dilute suspension of EDTAK2 anticoagulated red blood cells from 28 patients with polycythaemia vera and 22 healthy controls were filtered through 5 µm polycarbonate filters under a vacuum of 10 cm H2O.
The mean erythrocyte filtration times (EFT), taken as a measure of red blood deformability, were not statistically different in patients in comparison to controls.
However a group of 39% of patients showed EFT two standard deviations above the mean of controls; the values were unrelated to MCV and MCH of erythrocytes.
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