Increased Mean Platelet Volume in Patients With Aortic Stenosis

2010 ◽  
Vol 17 (6) ◽  
pp. E17-E20 ◽  
Author(s):  
Ercan Varol ◽  
Akif Arslan ◽  
Habil Yucel ◽  
Mehmet Ozaydin ◽  
Dogan Erdogan ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Platelet Activation ◽  
Mean Platelet Volume ◽  
Matched Control ◽  
Control Group ◽  
Study Group ◽  
Platelet Volume ◽  
Echocardiographic Examination ◽  
The Mean ◽  
And Control

Background: Systemic thromboembolism is a serious complication in patients with aortic stenosis (AS). Previous studies have demonstrated that platelet activation occurs in patients with AS. The aim of this study was to assess the mean platelet volume (MPV), an indicator of platelet activation in patients with AS. Patients and Methods: The study group consisted of 43 patients with AS. An age-, gender-, and body mass index−matched control group consisted of 35 healthy volunteers. All patients and control participants underwent echocardiographic examination. We measured the serum MPV values in patients and control participants. Results: Mean platelet volume was significantly higher among patients with AS when compared with the control group (8.7 ± 1.0 vs 7.9 ± 0.9 fL, respectively; P = .001). Conclusion: We have shown that MPV was significantly elevated in patients with AS compared to control participant.

scholarly journals The Mean Platelet Volume in Patients with Retinal Vein Occlusion

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Alparslan Şahin ◽  
Muhammed Şahin ◽  
Harun Yüksel ◽  
Fatih Mehmet Türkcü ◽  
Yasin Çınar ◽  
...  
Keyword(s):  
Retinal Vein Occlusion ◽  
Mean Platelet Volume ◽  
Control Group ◽  
Platelet Volume ◽  
Control Subjects ◽  
Vein Occlusion ◽  
Significant Difference ◽  
Healthy Control ◽  
The Mean ◽  
And Control

Background. The aim of this study was to investigate the mean platelet volume (MPV) of patients with retinal vein occlusion (RVO).Methods. Hundred and ninty-three patients with the diagnosis of RVO and 83 healthy control subjects were included in this retrospective study. Retinal vein occlusion was diagnosed based on clinical examination. All patients and control subjects underwent complete ocular examination. MPV, hematocrit, hemoglobin, and platelet count of the participants were recorded. The data of patients with RVO was compared with the control subjects.Results. Patients with RVO had significantly higher MPV values ( fL) compared with the control subjects ( fL) (). No significant difference was found in platelet counts between RVO group and the control group ( 109/L and  109/L, resp., ), Mean platelet volume was an independent predictor of RVO (odds ratio (OR) = 1.43; 95% confidence interval (CI) = 1.09–1.89; ).Conclusion. Our results demonstrated that the MPV values were significantly higher in patients with RVO, suggesting that larger platelets may contribute to the pathogenesis of the RVOs.

Acute and Chronic Changes in Platelet Volume and Count After Cardiopulmonary Bypass Induced Thrombocytopenia in Man

1987 ◽  
Vol 57 (01) ◽  
pp. 55-58 ◽  
Author(s):  
J F Martin ◽  
T D Daniel ◽  
E A Trowbridge
Keyword(s):  
Platelet Count ◽  
Mean Platelet Volume ◽  
Artery Bypass ◽  
Bypass Graft ◽  
Control Group ◽  
Artery Bypass Graft ◽  
Platelet Volume ◽  
Young Males ◽  
The Mean

SummaryPatients undergoing surgery for coronary artery bypass graft or heart valve replacement had their platelet count and mean volume measured pre-operatively, immediately post-operatively and serially for up to 48 days after the surgical procedure. The mean pre-operative platelet count of 1.95 ± 0.11 × 1011/1 (n = 26) fell significantly to 1.35 ± 0.09 × 1011/1 immediately post-operatively (p <0.001) (n = 22), without a significant alteration in the mean platelet volume. The average platelet count rose to a maximum of 5.07 ± 0.66 × 1011/1 between days 14 and 17 after surgery while the average mean platelet volume fell from preparative and post-operative values of 7.25 ± 0.14 and 7.20 ± 0.14 fl respectively to a minimum of 6.16 ± 0.16 fl by day 20. Seven patients were followed for 32 days or longer after the operation. By this time they had achieved steady state thrombopoiesis and their average platelet count was 2.44 ± 0.33 × 1011/1, significantly higher than the pre-operative value (p <0.05), while their average mean platelet volume was 6.63 ± 0.21 fl, significantly lower than before surgery (p <0.001). The pre-operative values for the platelet volume and counts of these patients were significantly different from a control group of 32 young males, while the chronic post-operative values were not. These long term changes in platelet volume and count may reflect changes in the thrombopoietic control system secondary to the corrective surgery.

scholarly journals True and Pseudo Cholinesterase levels in short and long-term of pesticides exposures

2020 ◽  
pp. 9-12
Author(s):  
Mohammed Abdul Rahman ◽  
Raghunatha Rao D ◽  
Vasantha L
Keyword(s):  
Whole Blood ◽  
Acute Poisoning ◽  
Mean Value ◽  
Serum Cholinesterase ◽  
Control Group ◽  
Study Group ◽  
Chronic Poisoning ◽  
The Mean ◽  
The Difference ◽  
And Control

The present study is aimed to study and analyze the true and pseudo Cholinesterase levels in the subjects exposed to pesticides during short term by intentional or accidental intake and long term exposure due to their occupation were studied at Department of Biochemistry, SVS medical college and hospital mahbubnagar district. Whole blood cholinesterase levels and Pseudo cholinesterase levels were estimated. 150 people were taken as controls who had no medical illness and a total number of 300 cases of pesticide poisoning were selected, aged between 20 to 55 years, which consist of 150 acute poisoning and 150 chronic poisoning subjects in Mahbubnagar district, were taken as case study, the detailed case history and the type of organophosphorus pesticide taken were recorded. Mean and standard deviation (S.D) of all variables were calculated and compared with those of controls. Statistical significance was assessed and P-value <0.05 were considered significant.           During acute poisoning the mean value of Whole blood cholinesterase/True cholinesterase (U / L) in acute poisoning cases on first day was 1.267± 0.612 on 3th day was 1.651±0.647, on 7th day was 2.221±0.684 and at the end of 6 months was 3.970±0.404.The difference between the study group and control group (4.0 ± 0.39) was found to be statistically significant in1st, 3rd, 7th day but not significant at the end of 6 months. The mean value of serum cholinesterase/pseudo cholinesterase (U/L) in acute poisoning cases on first day was 2213.05 ± 1749.81, on 3th day was 2862.3 ± 2025.6, on 7th day was 4008.4 ± 2355.9 and at the end of 6 months was 7708.34 ± 880.72.The difference between the study group and control group (7991.97 ± 1276.5) was found to be statistically significant in1st, 3rd, 7th day but not significant at the end of 6 months. During chronic poisoning (exposure) the mean value of Whole blood cholinesterase (U/L) in controls is 4.0 ± 0.39 as compared to 3.019 ± 0.848 in cases of chronic poisoning. The difference between the study group and control group was found to be statistically significant. The mean value of serum cholinesterase/pseudo cholinesterase (U/L) in controls was 7991.97 ± 1276.5 as compared to 6214 ± 1189 in cases of chronic poisoning. The difference between the study group and control group was found to be statistically significant.

Mean Platelet Volume is Affected in Term Fetuses with Intrauterine Growth Restriction

2020 ◽  
Author(s):  
Gul Nihal Buyuk ◽  
Z.Asli Oskovi-Kaplan ◽  
Aysegul Oksuzoglu ◽  
H.Levent Keskin
Keyword(s):  
High Risk ◽  
Pregnant Women ◽  
Mean Platelet Volume ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Control Group ◽  
Platelet Volume ◽  
Intrauterine Growth ◽  
Potential Marker ◽  
The Mean

Abstract Objectives The aim of our study was to analyze the mean platelet volume levels as a potential marker of altered placentation in intrauterine growth restriction (IUGR) cases. Methods A total of 126 term singleton pregnant women with IUGR fetuses and 345 healthy pregnant controls were recruited and compared. Results The mean platelet volume was significantly higher in the IUGR group (10.8±0.9 fl) than the control group (9.9±1.1 fl) (p=0.03). The mean hemoglobin was lower in IUGR group (11.3 (8.3–14.5) g/dl) than the control group (11.9 (8.2–13.0) g/dl) (p=0.04). The optimal cut-off MPV for prediction of IUGR was ≥10.55 fl, with a sensitivity of 59% and a specificity of 75%. Conclusion Increased MPV levels in term pregnant women may be particularly helpful for discrimination and prediction of high-risk fetuses when IUGR is suspected.

scholarly journals Central retinal vein occlusion associated with platelet activation

2019 ◽  
Vol 11 ◽  
pp. 251584141986484 ◽  
Author(s):  
Mehmet Citirik
Keyword(s):  
Retinal Vein Occlusion ◽  
Platelet Activation ◽  
Central Retinal Vein Occlusion ◽  
Mean Platelet Volume ◽  
Control Group ◽  
Platelet Distribution Width ◽  
Platelet Volume ◽  
Distribution Width ◽  
Vein Occlusion ◽  
Central Retinal Vein

Purpose:The aim of this article is to determine and compare the platelet activation by three main platelet activation parameters: mean platelet volume, platelet distribution width, and plateletcrit in patients with central retinal vein occlusion and control subjects.Methods:This study included 30 patients with nonischemic central retinal vein occlusion and 30 control subjects. The levels of mean platelet volume, platelet distribution width, and plateletcrit were measured in all groups.Results:The mean serum level of mean platelet volume was 10.01 ± 0.89 fl in central retinal vein occlusion group and 8.74 ± 1.45 fl in control group. The mean serum level of platelet distribution width was 14.31 ± 1.49% and 11.65 ± 1.81% in central retinal vein occlusion group and control group, respectively. Mean serum plateletcrit value was 0.27 ± 0.07% in central retinal vein occlusion group and 0.23 ± 0.07% in control group. Mean platelet volume, platelet distribution width, and plateletcrit levels were significantly higher in central retinal vein occlusion patients than controls ( p < 0.05).Conclusion:Subclinical platelet activation reflected by mean platelet volume, platelet distribution width, and plateletcrit may have an impact on the genesis of vessel occlusion in central retinal vein occlusion. The results may be important for the clinical management of patients with central retinal vein occlusion.

Cytomorphometric and Morphological Analysis in Women with Trichomonas vaginalis Infection: Micronucleus Frequency in Exfoliated Cervical Epithelial Cells

2015 ◽  
Vol 59 (3) ◽  
pp. 258-264 ◽  
Author(s):  
Zehra Safi Oz ◽  
Banu Doğan Gun ◽  
Mustafa Ozkan Gun ◽  
Sukru Oguz Ozdamar
Keyword(s):  
Epithelial Cells ◽  
Trichomonas Vaginalis ◽  
Control Group ◽  
Study Group ◽  
Control Groups ◽  
The Mean ◽  
The Difference ◽  
Group 2 ◽  
And Control ◽  
Group 1

Objectives: The aim of this study was to explore the cytomorphometric and morphological effects of Trichomonas vaginalis in exfoliated epithelial cells. Study Design: Ninety-six Pap-stained cervical smears were divided into a study group and two control groups as follows: T. vaginalis cases, a first control group with inflammation, and a second control group without inflammation. Micronucleated, binucleated, karyorrhectic, karyolytic, and karyopyknotic cells and cells with perinuclear halos per 1,000 epithelial cells were counted. Nuclear and cellular areas were evaluated in 70 clearly defined cells in each smear using image analysis. Results: The frequencies of morphological parameters in the T. vaginalis cases were higher than the values of the two control groups, and the difference among groups was found to be significant (p < 0.05). The nuclear and cytoplasmic areas of epithelial cells were diminished in patients with trichomoniasis. The mean nucleus/cytoplasm ratio in T. vaginalis patients was higher than the value in the control groups, and the difference between the study group and control group 1 was significant. However, there was no statistically significant increase between the study group and control group 2. Conclusions:T. vaginalis exhibited significant changes in the cellular size and nuclear structure of the cells. The rising frequency of micronuclei, nuclear abnormalities, and changing nucleus/cytoplasm ratio may reflect genotoxic damage in trichomoniasis.

scholarly journals Associations of Trauma Severity with Mean Platelet Volume and Levels of Systemic Inflammatory Markers (IL1β, IL6, TNFα, and CRP)

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Baris Alper ◽  
Baris Erdogan ◽  
Mehmet Özgür Erdogan ◽  
Korkut Bozan ◽  
Murat Can
Keyword(s):  
Mean Platelet Volume ◽  
Injury Severity ◽  
Serum Levels ◽  
Study Group ◽  
Platelet Volume ◽  
Trauma Severity ◽  
Severity Scores ◽  
Severity Of Injury ◽  
Significant Difference ◽  
The Mean

We investigated the associations of injury severity scores (ISSs) with the mean platelet volume, the serum levels of two interleukins (IL1βand IL6), and the serum levels of tumour necrosis factor-α(TNFα) and C-reactive protein (CRP). We sought to identify biochemical parameters that could be used as components of a new biochemical parameter-based ISS system. The levels of CRP, TNFα, IL1β, and IL6 differed significantly (allpvalues < 0.05) between severely injured patients and controls. The mean platelet volume (MPV) did not correlate with the ISSs (p> 0.05). The TNFαand IL6 levels were useful for determining the severity of injury, and the CRP level was elevated in all trauma patients but did not correlate with the ISS. The IL1βlevel was higher in the study group but did not increase as the ISS increased. IL6 and TNFαlevels were higher in the study group and increased as the ISS increased. We found no significant difference between the trauma group and healthy individuals in terms of MPV values. IL6 and TNFαlevels can be used to assess trauma severity. However, neither the MPV nor the CRP or IL1βlevel is useful for this purpose.

Diagnostic Role Of MPV In Acute Appendicitis

2020 ◽  
pp. 10-13
Author(s):  
◽  
Keyword(s):  
Acute Appendicitis ◽  
Mean Platelet Volume ◽  
Pathological Diagnosis ◽  
Control Group ◽  
Healthy Children ◽  
Platelet Volume ◽  
Blood Samples ◽  
Diagnostic Role ◽  
And Control

Introduction: The aim of this study was to investigate the diagnostic role of mean platelet volume (MPV) for acute appendicitis. Methods: Patient files were retrospectively observed. MPV of 311 patients with pathological diagnosis of acute appendicitis were compared with the MPV of 314 healthy children (blood samples were taken for elective operations). SPSS (IBM SPSS Statistics for Windows, Version 20.0. Armonk, NY: IBM Corp.) was used to evaluate the results. Results: 188 of acute appendicitis were male (%60.5). Mean age of acute appendicitis group was 10.22±3.83. MPV of children with the diagnosis of acute appendicitis (8.37±0.83fL) and the control group (10.55±0.83fL). MPV values were statistically different between the acute appendicitis and control group (p<0,001). Conclusion: MPV may be used as a marker for the diagnosis of acute appendicitis, but it is not a specific biomarker for appendicitis.

TNF-α and intPLA2 genes' polymorphism in anorexia nervosa

2004 ◽  
Vol 16 (6) ◽  
pp. 290-294 ◽  
Author(s):  
Agnieszka Slopien ◽  
Filip Rybakowski ◽  
Monika Dmitrzak-Weglarz ◽  
Piotr Czerski ◽  
Joanna Hauser ◽  
...  
Keyword(s):  
Anorexia Nervosa ◽  
Gene Polymorphism ◽  
Control Group ◽  
Study Group ◽  
Intron 1 ◽  
Tnf Α ◽  
The Mean ◽  
Polymerase Chain ◽  
And Control ◽  
Necrosis Factor

Objective:The aim of this study was the assessment of −308G/A tumor necrosis factor (TNF)-α gene polymorphism and intPLA2 gene polymorphism in patients with anorexia nervosa (AN) and healthy controls.Subjects:We studied 91 non-related patients with AN and 144 healthy women (blood donors and students). The mean age of women from study group was 18.22 years (SD ± 3.13 years) and from control group was 31.71 years (SD ± 8.22).Methods:Gene polymorphisms were studied with the use of polymerase chain reaction-restriction fragment length polymorphism method. TNF-α gene polymorphism consists of G/A substitution in −308 promoter region. IntPLA2 gene polymorphism is related to intron 1, in which restrictive region is found and recognized by BanI enzyme.Results:We did not obtain statistically significant differences in the frequency of genotypes and alleles of −308G/A TNF-α polymorphism between the study and control groups (genotypes: P = 0.106, alleles: P = 0.076). We did analogous analysis in the restrictive and bulimic subgroups. We did not observe statistically relevant differences in the frequency of genotypes (P = 0.700) and alleles (P = 0.305). We did not obtain statistically relevant difference in the frequency of genotypes and alleles of intPLA2 gene between the study group and controls (genotypes: P = 0.300, alleles: P = 0.331). We did analogous analysis in both subgroups of AN. We did not observe statistically relevant differences in the frequency of genotypes (P = 0.344) and alleles (P = 0.230).Conclusions:There was no statistically relevant trend for the association between TNF-α polymorphism and AN. We did not find association between studied polymorphism of intPLA2 gene and risk of AN.

Prognostic value of mean platelet volume on tinnitus

2015 ◽  
Vol 130 (2) ◽  
pp. 162-165 ◽  
Author(s):  
O Kemal ◽  
T Müderris ◽  
F Başar ◽  
G Kutlar ◽  
F Gül
Keyword(s):  
Mean Platelet Volume ◽  
Healthy Subjects ◽  
Clinical Findings ◽  
University Hospital ◽  
Control Group ◽  
Study Group ◽  
Pathophysiological Mechanism ◽  
Platelet Volume ◽  
Significant Difference ◽  
Healthy Control

AbstractObjective:This study aimed to determine whether there was any relationship between tinnitus and mean platelet volume.Methods:This retrospective study was conducted between January 2013 and January 2014 in Ankara Atatürk Hospital and Ondokuz Mayıs University Hospital, Turkey, on a study group of 86 patients with tinnitus and a control group of 84 healthy subjects. Mean platelet volume was recorded and comparisons were made between the two groups.Results:Mean (± standard deviation) platelet volume was 7.67 ± 0.83 μm3 in the study group and 7.28 ± 0.56 μm3 in the control group. There was a statistically significant difference in mean platelet volume between the tinnitus patients and the healthy subjects (p < 0.05).Conclusion:The clinical findings indicated that tinnitus patients had a higher mean platelet volume than the healthy control subjects; however, the pathophysiological mechanism remains unclear.

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