Evaluating the Role of Platelet Indices, with a Focus on Immature Platelet Fraction (IPF), in Differentiating Hyper-Destructive and Hypo-Productive Thrombocytopenia: A Study from Ludhiana, Punjab, India

Abstract

Background: Thrombocytopenia, characterized by a reduction in platelet count, is commonly observed in clinical settings. Its etiology can be broadly classified into hyper-destructive thrombocytopenia, where platelets are destroyed at an accelerated rate, and hypo-productive thrombocytopenia, where platelet production is impaired. Differentiating between these two causes is essential for effective management. The Immature Platelet Fraction (IPF) has emerged as a promising non-invasive diagnostic tool to distinguish these causes.

Objectives: The primary aim of this study was to evaluate the role of IPF in differentiating hyper-destructive from hypo-productive thrombocytopenia. Additionally, we sought to assess the clinical utility of other platelet indices, such as Mean Platelet Volume (MPV), Platelet Distribution Width (PDW), and Platelet Large Cell Ratio (P-LCR), in the diagnostic process.

Methods: This hospital-based case-control study included 350 participants: 175 patients with thrombocytopenia (Group A1: hyper-destructive, Group A2: hypo-productive) and 175 healthy controls. Platelet indices, including IPF, MPV, PDW, and P-LCR, were measured using the Mindray BC-6800 automated analyser. The data were analysed using univariate analysis, correlation, regression, and Chi-square tests to determine the significance of these indices in differentiating the two types of thrombocytopenia.

Results: The study found that IPF values were significantly higher in patients with hyper-destructive thrombocytopenia (16.3 ± 7.6%) compared to those with hypo-productive thrombocytopenia (6.0 ± 4.8%, P Conclusion: IPF is a valuable, non-invasive diagnostic marker that can reliably differentiate between hyper-destructive and hypo-productive thrombocytopenia. The use of automated platelet indices, particularly IPF, can enhance clinical decision-making and reduce the need for invasive procedures like bone marrow aspiration. Further research with larger, multicenter studies is recommended to validate these findings and establish standardized reference ranges for clinical practice.