Change in the Ratio of Mean Platelet Volume (MPV) to Platellet(PLT) in Covid-19 Pneumonia Patients

Study Overview
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Brief Summary
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Morbidity, mortality and progress depends on systemic inflammation especially in ARDS patients. Previous studies claims that the proportion of mean platellet volume to platellet which can simply be determined with simple blood tests that are performed at admission, might predict the mortality in ARDS patients. Covid-19 pneumonia has a very similar clinical outlook with ARDS. Therefore we decided to research whether that proportion is legitimate for detecting the progress of Covid-19 pneumonia or not.

Detailed Description
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Covid-19 pneumonia is a spesific disease dispate its similarity to ARDS. There are nomorous of studies that MPV/PLT ratio can predict the mortality, morbidity and the progress of ARDS. Depending on the similarity of ARDS, MPV/PLT ratio might predict the clinical progress of Covid-19 pneumonia. We retrospectively recruited150 patients admitted to our institute -a tertiary center- with Covid-19 pneumonia to our study. Clinical based defining research, by March-May 2020, the patients over 18 years old who were in either intensive care or ward scanned retrospectively. The laboratory tests, chronic diseases , age and gender has been collected from the written resources and electronic data retrospectively. the patients who are diagnosed with Covid*19 pneumonia will be divided into two groups. The ones in the ward will be considered as mild clinical course, and the ones in the intensive care unit will be considered as severe clinical course. there will be an additional non Covid individuals as a control group, which will consist 52 patients each. The ratio of MPV to PLT will be calculated using admission hemogrames of these groups, and the significance of the statistical differences on determining the prognosis of the disease will be discussed. Gpower 3 for Mac Os (Faul, F., Erdfelder, E., Buchner, A., & Lang, A.-G. (2009). Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses. Behavior Research Methods, 41, 11491160.) was used for istatistical power analysis.It was done using ANOVA test between at least two independent groups. In order to provide enoughsample magnitude power, which is 0.8, it was calculated that each group should have 52 patients which makes at total of 156. The normal distribution of data will be evaluated using Kolmogorov-Smirnov test. Parametric ones will be used in normal distrubitions, non-parametric ones will be uused in abnormal distrubitions. Between the independent groups, MPV/PLT ratio will be calculated using ANOVA test. Categoric data will be compared by Pearson ki square test and the p values less than 0.05 will be considered as significant. we aim to have an opinion about Covid 19-pneomonia prognosis at the admission of hospital.

Official Title
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Retrospective Change in the Ratio of Mean Platelet Volume (MPV) to Platellet(PLT) in Covid-19 Pneumonia Patients

Conditions
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Coronavirus Infection

Intervention / Treatment
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* Other: observation of covid 19 pneumonia


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients over 18 years old who hospitalized with diagnosis of Covid-19 pneumonia between march and may 2020 Exclusion Criteria: Under 18 years old patients Patients with heamolytic diaseses

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| mild pneumonia<br>The patients who has followed in the ward | Other: observation of covid 19 pneumonia<br>* We try to reveal the fact,covid-19 pneumonia prognosis can be estimated by using MPV/PLT ratio<br>|
| severe pneumonia<br>The patiens who has followed in the intensive care unit | Other: observation of covid 19 pneumonia<br>* We try to reveal the fact,covid-19 pneumonia prognosis can be estimated by using MPV/PLT ratio<br>|
| control group<br>patients who has not covid 19 pneumonia | Other: observation of covid 19 pneumonia<br>* We try to reveal the fact,covid-19 pneumonia prognosis can be estimated by using MPV/PLT ratio<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| estimation of inflammatory changes in Covid 19 pneumonia by using MVP/PLT ratio | İt has been studied that MPV/PLT ratio can show the cl inical couses of several diseases as well as ARDS. we thought that we can identify the coronavirus pneumonia patients earlier, at admission of hospital by using the hemogrames. | March-May 2020 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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covid-19, MPV/PLT, pneumonia