Reticulated platelets: analytical aspects and clinical utility.

Area of Science:

• Hematology
• Clinical Pathology
• Biomedical Engineering

Background:

• Reticulated platelets are immature platelets reflecting bone marrow megakaryopoiesis.
• They serve as a non-invasive biomarker for various clinical conditions, particularly thrombocytopenia.
• Current analytical methods lack standardization, hindering inter-laboratory result comparison.

Purpose of the Study:

• To review current technologies for measuring reticulated platelets.
• To provide an overview of the clinical applications of reticulated platelet assays.
• To highlight the need for further research in broader clinical contexts.

Main Methods:

• Discussion of automated hematology analyzers (Sysmex XE/XN-series, Abbott CELL-DYN Sapphire) for reticulated platelet measurement.
• Review of flow cytometry as the preferred analysis method.
• Synthesis of existing literature on clinical utility and technological advancements.

Main Results:

• Two main automated platforms exist, but their methods are not interchangeable.
• Reticulated platelet assays are clinically valuable for diagnosing thrombocytopenia and monitoring bone marrow recovery post-chemotherapy or transplantation.
• Preliminary data suggests potential use in acute coronary syndromes and antiplatelet therapy monitoring.

Conclusions:

• Automated reticulated platelet assays demonstrate clinical utility despite methodological differences.
• These assays are valuable tools for managing thrombocytopenia and assessing bone marrow function.
• Further research is required to expand their application beyond current indications.