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[Correlation Analysis of Platelet Aggregation Rate Detected by Platelet Analyzer, Platelet Aggregometer and Thromboelastography].

OBJECTIVE
To analyze and compare the correlation of platelet aggregation rate measured by platelet analyzer, platelet aggregometer and thromboelastography.


METHODS
The performance of platelet analyzer in platelet count and platelet aggregation function was evaluated. The platelet aggregation rate of 55 patients with type 2 diabetes mellitus (T2DM) before and after taking aspirin alone (32 cases) and clopidogrel alone (23 cases) was measured by thromboelastography, platelet aggregometer and platelet analyzer respectively, and the analytical results were compared. The correlation between the results measured by different instruments and equipment were further analyzed and the data were included in the statistical analysis.


RESULTS
The precision of platelet analyzer in day and in batch was 1/3 lower than the total error (7%). The contamination rate was 0.30%. The slope of regression equation was 1.02 and R2 was 0.99 in the linear range of 4.15×109/L to 1379.95×109/L. The coincidence rate of platelet count and platelet reference method was 85%, which met the requirements of industry standards. The platelet aggregation rates of patients with T2DM after clopidogrel or aspirin by using thromboelastography, platelet aggregometer and platelet analyzer respectively was significantly lower than those whom before clopidogrel administration (P<0.01).


CONCLUSION
Platelet analyzer can provide reliable, objective and accurate information for clinical detection of platelet count and aggregation function, which is meet the requirements of industry standards, and its results are similar to those of platelet aggregometer and thromboelastography.