Abstract TP202: Association of Rs7961894 with Mean Platelet Volume in Patients with Acute Ischemic Stroke

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Malgorzata Miller ◽  
Nils Henninger ◽  
Renato Umeton ◽  
Agnieszka Slowik
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Myocardial Infarct ◽  
Mortality Data ◽  
Platelet Volume ◽  
Laboratory Findings ◽  
Stroke Subtypes ◽  
Increased Risk ◽  
One Year

Introduction: Mean platelet volume (MPV) is a marker of platelet function and elevated MPV was found to be an independent risk factor for death after myocardial infarct in patients with coronary artery disease. Higher MPV was associated with increased risk of ischemic stroke, yet there is insufficient data regarding the role of MPV as a marker of outcome in patients with ischemic stroke. The variability of platelet indices in humans is largely determined by genetic factors and rs7961894 located within intron 3 of WDR66 gene showed the strongest association with MPV in all genome wide association (GWA) studies in the European population. Aim: To determine the association of rs7961894 with MPV in patients with acute ischemic stroke and to assess whether rs7961894 and MPV could be markers of one year mortality in different stroke subtypes. Material and methods: For 426 adults with first-ever ischemic stroke MPV was measured within 72h of stroke onset and single nucleotide polymorphism genotyping of rs7961894 was performed accordingly (RT-PCR, Applied Biosystems). Epidemiologic and clinical characteristics (including TOAST classification), laboratory findings as well as one year mortality data were collected for each participant. Results: Allele T and genotypes CT and TT of the rs7961894 polymorphism were associated with the highest (>11.5fL) MPV quartile (Chi 2 test, p<0.01). MPV was significantly higher in patients with genotype TT as compared to CT and CC genotype (12.0±0.24fL vs. 11.10±0.15fL and 10.77±0.05fL, respectively, ANOVA, p <0.005 with Tukey HSD post-hoc test, Figure 1). Conclusions: Allele T of rs7961894 polymorphism is associated with increased MPV in the recessive and dominant model and patients with genotype TT have significantly higher MPV as compared to the rest of the population study. Further analysis is currently being conducted to determine the association of MPV and rs7961894 polymorphism with one year mortality and stroke subtypes.

Association Between Mean Platelet Volume and Hemorrhagic Transformation in Acute Ischemic Stroke Patients

2020 ◽  
Vol 17 (1) ◽  
pp. 3-10
Author(s):  
Changyi Wang ◽  
Lu Wang ◽  
Linghui Deng ◽  
Shi Qiu ◽  
Shihong Zhang ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Generalized Additive Model ◽  
Univariate Analysis ◽  
Additive Model ◽  
Hemorrhagic Transformation ◽  
Dependent Manner ◽  
Platelet Volume ◽  
Increased Risk

Background: Hemorrhagic transformation (HT) is a frequent complication of acute ischemic stroke (AIS). Mean platelet volume (MPV) is a marker of platelet function. The relationship between MPV and HT remains unclear. Methods: From January 1st, 2012 to December 31st 2016, we consecutively enrolled AIS patients admitted to the Department of Neurology of West China Hospital. MPV was measured on admission. HT was diagnosed by brain imaging and classified into hemorrhagic infarct (HI) and parenchymal hematoma (PH). Moreover, subjects were divided into tertiles according to MPV levels. Confounders were identified by univariate analysis and multivariate logistic regression was performed to explore the association between MPV and HT as well as HT subtypes. Also, a generalized additive model was used to investigate whether a non-linear association existed between MPV and HT. Results: A total of 783 AIS patients were included. 63 patients (8.0%) developed HT: 34 (4.3%) HI and 29 (3.7%) PH. It was observed that MPV positively correlated with HT. After adjustment for confounders, patients in the highest MPV tertile had a significantly increased risk of HT compared to patients in the lowest tertile (odds ratio 2.3, 95% confidence interval 1.0-5.4, P=0.04). The risk of HT increased step-wise across MPV tertiles (P for trend=0.04). MPV tertiles significantly correlated with HI rather than PH. The generalized additive model demonstrated a nonlinear association between MPV and HT (P=0.02). Conclusion: The risk of HT increased with increasing MPV level in a dose-dependent manner. Patients with elevated MPV levels were more likely to develop HI rather than PH.

scholarly journals The mean platelet volume and plateletcrit as predictors of short-term outcome of acute ischemic stroke

2019 ◽  
Vol 55 (1) ◽  
Author(s):  
Al-Amir Bassiouny Mohamed ◽  
Hassan Mohamed Elnady ◽  
Hazem Kamal Alhewaig ◽  
Hesham Moslem Hefny ◽  
Ashraf Khodery
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Platelet Volume ◽  
Short Term ◽  
Term Outcome ◽  
Short Term Outcome ◽  
The Mean

Mean platelet volume in Korean patients with acute ischemic stroke: A gender difference

Platelets ◽  
2012 ◽  
Vol 24 (1) ◽  
pp. 75-76 ◽  
Author(s):  
Sun Young Cho ◽  
You La Jeon ◽  
Seok Keun Choi ◽  
Jin-Tae Suh ◽  
Hee Joo Lee ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Gender Difference ◽  
Acute Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Platelet Volume ◽  
Korean Patients

scholarly journals MEAN PLATELET VOLUME DI STROK

2016 ◽  
Vol 19 (1) ◽  
pp. 37
Author(s):  
Besse Rosmiati ◽  
Sulina Y Wibawa ◽  
Darmawaty ER
Keyword(s):  
Cohort Study ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Modified Rankin Scale ◽  
Platelet Activity ◽  
Stroke Patients ◽  
Platelet Volume ◽  
P Values ◽  
The Mean

Ischemic stroke is the cause of most cases which occur due to obstruction, this pathogenesis can be caused by the formation of thrombus in the cerebrum blood vessels. Platelet aggregation plays a role in the pathogenesis of thromboembolic cerebrovascular disease. Platelets size, measured as Mean Platelet Volume (MPV) is a marker of platelet function and is associated with the indicator of platelet activity. Several studies have found that there was an increased of MPV in acute ischemic stroke while the correlation with the severity and outcome of stroke was still controversial. The aim of study is to determine the MPV and their association with outcomes in acute ischemic stroke patients. A cohort study during May up to July 2010 was carried out, the researchers measured MPV and analyze their correlation with its outcome using modified Rankin scale score 10 days after the onset in 33 acute ischemic stroke patients. The mean of MPV for the first three days of the onset was 8.9 fl, on the 5th day was increased up to 9.4 but at the 10th day of onset the MPV remains the same value as the 5th day. The MPV of first three days and 5th day have a positive correlation, but insignificant with their outcome, with p values 0.158 and 0.06, respectively. From this study can be concluded that the increased of MPV on the fifth day onset did not have any significant correlation with the outcome of acute ischemic stroke illness.

scholarly journals A HOSPITAL BASED COMPARATIVE STUDY OF SERUM MEAN PLATELET VOLUME IN ISCHEMIC STROKE PATIENTS.

2019 ◽  
Vol 3 (9) ◽  
Author(s):  
Dr. Atul Baid ◽  
Dr. Chhavi Raman Baid
Keyword(s):  
Platelet Count ◽  
Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Normal Subjects ◽  
Rank Test ◽  
P Value ◽  
Modified Rankin Scale ◽  
Platelet Volume ◽  
Laboratory Findings ◽  
Significant Difference

Objectives: This study was evaluated the association of serum means platelet volume, functional outcome and various parameters in patients of ischemic stroke. Methods: Detail history clinical examinations and relevant investigations were performed to all subjects. Lab parameters included as platelets counts, mean platelet volume and others were performed. The diagnosis of ischaemic stroke was made clinically with the evidence of acute lesions (infarct) confirmed by brain CT or MRI within the first 24 h of presentation of symptoms. Each patient condition was assessed by modified Rankin Scale. Results: Data was analyzed using SPSS version 26 software. Related-Samples Wilcoxon Signed Rank Test was applied. Mean and standard deviation were calculated. P value was taken less than or equal to 0.05 for significant differences (p ≤ 0.05). Conclusions: There was no significant difference seen in platelet count of ischemic stroke cases with control. Mean platelet volume was significantly higher in ischemic stroke cases than normal subjects. Majorities of ischemic stroke cases had moderate disability, required some help but able to walk without assistance. MPV was higher in ischemic stroke cases that had higher Modified Rankin scale.  Hence, serum MPV can be used as meaningful laboratory findings for early detection of ischemic stroke. Key words: Ischemic stroke, mean platelet volume, platelet count, modified Rankin score

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