Role of mean platelet volume (MPV), platlet distribution width (PDW) and platelet large cell ratio (PLCR) in diagnosis of hyperdestructive thrombocytopenia.

  • Hamzullah Khan Nowshera Medical College, Nowshera.
  • Adnan Masood Nowshera Medical College, Nowshera.
  • Fazle Bari Nowshera Medical College, Nowshera.
  • Naila Tabassum Nowshera Medical College, Nowshera.
  • Ameezullah - Nowshera Medical College, Nowshera.
Keywords: Immune Thrombocytopenic Purpura (ITP), Pancytopenia, Periphral Smear, Platelet Indices, Smear

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.

Author Biographies

Hamzullah Khan, Nowshera Medical College, Nowshera.

MBBS, M.Phil Hematology

Associate Professor

Department of Hematology

 

Adnan Masood, Nowshera Medical College, Nowshera.

MBBS, MS

Assistant Professor

Department of Microbiology

 

Fazle Bari, Nowshera Medical College, Nowshera.

MBBS, M.Phil Microbiology

Professor

Department of Microbiology

 

Naila Tabassum, Nowshera Medical College, Nowshera.

MBBS

Medical Officer

Department of Pathology

 

Ameezullah -, Nowshera Medical College, Nowshera.

Lab Technician

Department of Pathology

 

Published
2019-08-10