Asian Journal of Transfusion Science
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ORIGINAL ARTICLE
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Comparison of platelet indices in dengue fever patients based on platelet transfusion: A prospective observational study in a tertiary care center


 Department of Transfusion Medicine, Department of General Medicine, Jubilee Mission Medical College and Research Institute, Thrissur, Kerala, India

Correspondence Address:
J Asha,
D/o. Dr. K. Joshi, Harichandanam, Nedunganda (PO), Vilabhagom, Varkala, Thiruvananthapuram - 695 307, Kerala
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajts.AJTS_24_20

CONTEXT: Dengue fever is the most prevalent mosquito-borne viral disease in humans. Platelet indices (PIs) are given by the cell counters but are often not reported which is possibly due to under-recognition of the utility of these parameters. AIMS: This study aimed to compare PIs in patients with dengue fever to assess their role in the outcome such as hospital stay and platelet transfusion requirements. SETTINGS AND DESIGN: Prospective observational study in a tertiary care center, Thrissur, Kerala. SUBJECTS AND METHODS: A group of 250 dengue patients was studied over a period of 18 months. The platelet parameters (platelet count, mean platelet volume [MPV], platelet distribution width [PDW], platelet large cell ratio [PLCR], plateletcrit [PCT] and immature platelet fraction [IPF]) were measured with Sysmex XN-1000 and followed up every 24 h. The clinical features, duration of hospital stay and platelet transfusion requirements details were collected. STATISTICAL ANALYSIS USED: Independent t-test, Chi-square test, Karl Pearson correlation coefficient. RESULTS: A total of sample size was 250. The study showed normal PDW and MPV, low platelet count and PCT, and high PLCR and IPF in dengue patients. There were significant differences in PIs (lower platelet count and PCT, higher MPV, PDW, PLCR, and IPF) in comparison between dengue patients based on platelet transfusion. CONCLUSIONS: PIs may act as a predictive tool in the diagnosis and predicting outcomes in dengue fever. Low platelet count and PCT, high PDW, MPV, PLCR, and IPF in transfused dengue patients were found to be statistically significant. Clinicians need to be sensitized about the utility and limitations of these indices and rationalize the need for red cell and platelet transfusions in dengue.


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    -  Asha J
    -  Baiju NM
    -  Innah SJ
    -  Rafi A
    -  John BM
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2006 - Asian Journal of Transfusion Science | Published by Wolters Kluwer - Medknow
Online since 10th November, 2006