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Published on: February 14, 2017
Reticulated Platelets and an Optimal Model for Differentiating Thrombocytopenia Etiologies.
Tung Thanh Tran1, Quyen Ngoc Truong1, Hong Phuoc Mac1
1Department of Hematology Cho Ray Hospital Ho Chi Minh City Vietnam.
Ejhaem
|May 18, 2026
Summary
Reticulated platelet (RtcPLT) percentage effectively differentiates thrombocytopenia causes. An optimal model combining RtcPLT with other hematologic parameters offers highly accurate, cost-effective screening for peripheral versus bone marrow etiologies.
Area of Science:
- Hematology
- Clinical Diagnostics
- Biomarker Discovery
Background:
- Thrombocytopenia diagnosis requires differentiating peripheral destruction from bone marrow production failure.
- Automated hematology analyzers offer potential for rapid diagnostic markers.
Purpose of the Study:
- To evaluate the clinical utility of reticulated platelet (RtcPLT) percentage in distinguishing thrombocytopenia causes.
- To establish RtcPLT reference intervals and develop an optimal diagnostic model.
Main Methods:
- A cross-sectional study of 375 subjects (84 healthy, 291 thrombocytopenic).
- RtcPLT measured via optical fluorescence; groups classified by bone marrow biopsy.
- Diagnostic accuracy assessed using ROC analysis and Bayesian model averaging.
Main Results:
- Median RtcPLT was significantly lower in bone marrow production failure (BME) group (2.28%) vs. peripheral etiology (PE) group (8.27%).
- Single RtcPLT cutoff (4.64%) showed high sensitivity (90.7%) and specificity (82.9%).
- Optimal model (RtcPLT + RBC, neutrophil%, basophil%, reticulocyte%, LUC%) achieved AUC 0.980, sensitivity 92.0%, specificity 94.4%.
Conclusions:
- RtcPLT is a robust, automated biomarker for assessing thrombopoietic activity.
- The proposed optimal model provides high accuracy for differentiating thrombocytopenia etiologies.
- This approach serves as an expeditious and cost-effective screening tool.
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