Mean Platelet Volume in Patients with Acute Ischemic Stroke with Nonvalvular Atrial Fibrillation

2018 ◽  
Vol 64 (11+12/2018) ◽  
Author(s):  
Sidika Gul ◽  
Eren Gozke
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Mean Platelet Volume ◽  
Platelet Volume ◽  
Nonvalvular Atrial Fibrillation

scholarly journals Mean platelet volume and mean platelet volume/platelet count ratio in nonvalvular atrial fibrillation stroke and large artery atherosclerosis stroke

2019 ◽  
Author(s):  
Ning Zhu ◽  
Shu Hao ◽  
Wenbing Jiang ◽  
Yi Wang ◽  
Shunkai Zhang
Keyword(s):  
Atrial Fibrillation ◽  
Platelet Count ◽  
Ischemic Stroke ◽  
Confidence Interval ◽  
Mean Platelet Volume ◽  
Size Composition ◽  
Lesion Volume ◽  
Large Artery ◽  
Platelet Volume ◽  
Nonvalvular Atrial Fibrillation

Abstract Objective Ischemic stroke subtypes such as patients with large artery atherosclerosis, cardioembolism and embolic stroke of undetermined source were investigated. This study was performed aimed to determine mean platelet volume (MPV) and mean platelet volume/platelet count (MPV/Plt) Ratio in nonvalvular atrial fibrillation (AF) stroke and large artery atherosclerosis (LAA) stroke.Methods We conducted a retrospective study of consecutive patients for treatment of acute ischemic stroke at Ruian People's Hospital from March 2017 to October 2018. The patients with ischemic stroke caused by AF and LAA were recruited to this study. Ischemic stroke was confirmed by MRI and MRA, ischemic lesions on diffusion-weighted imaging were measured in terms of size, composition, and pattern. MPV and platelet count were examined and (MPV/Plt) Ratio was calculated.Results 371 patients were enrolled composing of 177 (47.7%) nonvalvular AF and 194 (52.2%) with LAA. The MPV (11.3 ± 1.3 vs. 10.8 ±1.0, p﹤0.001) and MPV/Plt ratio (0.066±0.025 vs. 0.055±0.20, p﹤0.001) were much higher in AF group than LAA group. ROC analysis showed MPV (AUC: 0.624, confidence interval:0.567-0.68,p﹤0.001) and MPV/Plt (AUC: 0.657, confidence interval:0.601-0.713,p﹤0.001) predicted AF between the two groups. MPV/Plt ratio was negatively associated with lesion volume (r = -0.161, p = 0.033) in AF. The analyses of subtypes of composition of infarcts and infarct pattern showed that MPV/Plt ratio was almost higher in AF than LAA except for subcortical-only pattern. Multivariable regression analyses demonstrated NIHSS score (r = 2.74; p﹤0.001), LAD (r = -1.15; P = 0.025) and MPV/Plt ratio (r = -180.64; P = 0.021) were correlated with lesion volume.Conclusion Our results indicated elevated MPV and MPV/Plt ratio for the identification of difference between AF and LAA in patients with ischemic stroke.

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.

scholarly journals Atrial fibrillation risk factors in patients with ischemic stroke

2021 ◽  
Vol 17 (1) ◽  
pp. 19-24
Author(s):  
Paweł Wańkowicz ◽  
Przemysław Nowacki ◽  
Monika Gołąb-Janowska
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Atrial Fibrillation ◽  
Coronary Heart Disease ◽  
Heart Disease ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Nonvalvular Atrial Fibrillation ◽  
Multivariable Logistic Regression Model ◽  
Lipid Metabolism Disorders

IntroductionAtrial fibrillation (AF) is the most common heart arrhythmia. The condition is known to increase the risk of ischemic stroke (IS). Classical risk factors for the development of AF include advanced age, hypertension, diabetes mellitus, coronary heart disease and lipid metabolism disorders. Importantly, these are also recognized risk factors for ischemic stroke. Therefore, the purpose of this study was to investigate AF risk factors in patients with IS.Material and methodsThis is single-centre retrospective study which included 696 patients with acute ischemic stroke and nonvalvular atrial fibrillation and 1678 patients with acute ischemic stroke without atrial fibrillation.ResultsIn this study we found – based on a univariable and multivariable logistic regression model – that compared to the patients with IS without AF, the group of patients which suffered from IS with nonvalvular atrial fibrillation (NVAF) had a higher proportion of patients who smoked cigarettes (OR = 15.742, p < 0.01; OR = 41.1, p < 0.01), had hypertension (OR = 5.161, p < 0.01; OR = 5.666, p < 0.01), history of previous stroke (OR = 3.951, p < 0.01; OR = 4.792, p < 0.01), dyslipidemia (OR = 2.312, p < 0.01; OR = 1.592, p < 0.01), coronary heart disease (OR = 2.306, p < 0.01; OR = 1.988, p < 0.01), a greater proportion of female patients (OR = 1.717, p < 0.01; OR = 2.095, p < 0.01), higher incidence of diabetes mellitus (OR = 1.341, p < 0.01; OR = 1.261, p = 0.106) and more patients in old age (OR = 1.084, p < 0.01; OR = 1.101, p < 0.01).ConclusionsOur study demonstrates a need for thorough and systematic monitoring of post-ischemic stroke patients in whom AF has not been detected and who display other important risk factors. Regardless of the stroke, these factors may be responsible for development of AF.

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
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