Whole blood platelet aggregometry and platelet function testing

Area of Science:

• Hematology
• Clinical Chemistry
• Diagnostic Medicine

Background:

• Platelet aggregometry, established in the 1960s, is the standard for diagnosing and monitoring qualitative platelet disorders.
• Light transmittance aggregometry has limitations in specimen management and sensitivity to platelet secretion impairments.

Purpose of the Study:

• To highlight the advantages of whole blood lumiaggregometry over traditional methods.
• To discuss the application of whole blood lumiaggregometry in diagnosing platelet disorders and monitoring antiplatelet therapy.
• To explore emerging uses of impedance-based whole blood lumiaggregometry for point-of-care testing.

Main Methods:

• Comparison of light transmittance aggregometry with lumiaggregometry and impedance-based whole blood lumiaggregometry.
• Utilizing whole blood lumiaggregometry to identify platelet plasma membrane receptor defects, secretion disorders, and storage pool deficiency.
• Assessing antiplatelet therapy efficacy and resistance using whole blood lumiaggregometry.

Main Results:

• Whole blood lumiaggregometry offers improved specimen handling and increased sensitivity to impaired platelet granule secretion.
• It effectively detects congenital and acquired platelet defects, including receptor issues, secretion problems, and storage pool deficiencies.
• Whole blood lumiaggregometry is valuable for monitoring antiplatelet medications and identifying resistance to aspirin and thienopyridines.

Conclusions:

• Whole blood lumiaggregometry represents a significant advancement in platelet function analysis.
• Its enhanced sensitivity and specimen management make it superior to older methods for diagnosing platelet disorders.
• There is increasing interest in its application for near-patient testing and antiplatelet therapy monitoring.