[A filtration study of erythrocyte deformability]

Area of Science:

• Hematology
• Biophysics

Background:

• Red blood cell deformability is crucial for microcirculation.
• Accurate quantitation methods are needed for clinical applications and blood quality control.

Purpose of the Study:

• To compare two distinct methods for quantifying red blood cell deformability: the constant flow method and the initial flow rate method.
• To identify optimal experimental conditions for reliable measurements of red cell deformability.

Main Methods:

• Washed red blood cells were suspended in a saline medium supplemented with glucose and albumin.
• Deformability was assessed using both constant flow and initial flow rate techniques under varied conditions.
• Parameters characterizing flow curves from the constant flow method were analyzed.

Main Results:

• Optimal conditions for measurement were established, including medium composition, hematocrit (HCT), leukocyte count, and filter types.
• Both the constant flow method and the initial flow rate method demonstrated the capability to quantify red blood cell deformability.
• The study presents parameters for characterizing flow curves obtained via the constant flow method.

Conclusions:

• Both investigated methods are suitable for quantitating red blood cell deformability.
• These methods can be effectively utilized for the quality control of stored blood and erythrocyte mass.
• Adherence to established optimal methodological requirements ensures reliable results for both techniques.