Abstract
Thrombocytopenia has been shown to have significant mortality if ignored. Platelet indices have been reported to be useful prognostic indicators. The objectives of this study was to determine the diagnostic importance of the platelet indices in diagnosis of hyperdestructive thrombocytopenia i.e ITP. Study Design: Cross sectional observational study. Setting: Department of Pathology (MTI) Qazi Hussain Ahmed Medical Comeplex Nowshera Medical College. Period: Aug 2017 to Jan 2018. Materials and Methods: These blood samples were analyzed in clinical Pathology laboratory of QHAMC. Required information’s were recorded on predesigned proforrma as per objectives of the study. Results: The peripheral smears of 139 cases were reported in the study. Detailed history and Thorough clinical examination was conducted. Mean age of the study population of the patients with standard deviation was 30.90(±6.4) years. Mean platelet count was 27. 37(±12.8) x109/. Mean platelet volume MPV was 11.4(±1.4) fl. Mean platelet distribution width (PDW) was 15.4(±3.3) fl. Mean platelet large cell ratio (PLCR) was 39.6(±8.9) %. Eight cases with MPV lower than 11fl and cases with PDW more than 15fl that were also having pancytopenia or bycytopenic picture were advised bone marrow aspiration for further diagnosis if clinically indicated. Six cases out of eight to whom bone marrow was advised were sent for bone marrow examination by the clinicians and we found that three of them were idiopathic thrombocytopenia and one Megaloblastic anemia, one case with pancytopenia due to hyperspleenism and one with acute leukemia with eosinophilia. Conclusion: From the above we concluded that all cases with MPV>11fl and PDW>14fl are sensitive and specific indicators for ITP and These indices help to distinguish hyper-destructive thrombocytopenia and hypo-productive thrombocytopenia very easily and it is also cost effective on a very simple test that is special smear. We must look for platelet indices very keenly while reporting a case with bi-cytopenia and pancytopenia.
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