scholarly journals Mean platelet volume and mean platelet volume to platelet count ratio as predictors of severity and mortality in sepsis

PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0262356
Author(s):  
Jorge Luis Vélez-Páez ◽  
Pedro Legua ◽  
Pablo Vélez-Páez ◽  
Estefanía Irigoyen ◽  
Henry Andrade ◽  
...  
Keyword(s):  
Septic Shock ◽  
Platelet Count ◽  
Mean Platelet Volume ◽  
Proportional Hazards Model ◽  
Fatal Outcome ◽  
Public Health Problem ◽  
Cox Proportional Hazards Model ◽  
Clinical Severity ◽  
Biological Behavior ◽  
Platelet Volume

Introduction Sepsis is a public health problem due to its high prevalence and mortality. Mean platelet volume (MPV), a biomarker reported in routine blood counts, has been investigated and shows promise for determining fatal outcomes in septic patients. Objective Evaluate whether the mean platelet volume (MPV) and mean platelet volume-to-platelet count (MPV/P) ratio are predictors of clinical severity and mortality in patients with sepsis. Methods A prospective population cohort of 163 patients aged 18–97 years was recruited at the Intensive Care Unit of Pablo Arturo Hospital, Quito, Ecuador from 2017–2019 and followed up for 28 days. Patients were diagnosed with sepsis based on SEPSIS-3 septic shock criteria; in which the MPV and the MPV/P ratio were measured on days 1, 2, and 3. Sequential organ failure assessment (SOFA) score and presence of septic shock assessed clinical severity. Mortality on day 28 was considered the fatal outcome. Results The average age of the patients was 61,15 years (SD 20,94) and female sex was predominant. MPV cutoff points at days 1, 2 and 3 were >9,45fL, >8,95fL and >8, 85fL; and (MPV/P) ratio >8, 18, >4, 12 y >3, 95, respectively. MPV at days 2 (9,85fL) and 3 (8,55fL) and (MPV/P) ratio at days 1 (4,42), 2 (4,21), and 3 (8,55), were predictors of clinical severity assessed by septic shock, which reached significance in the ROC curves. MPV and (MPV/P) ratio were also predictors of clinical severity determined by SOFA at days 1, 2, and 3, where higher values were observed in non-survivors reaching significance in all categories. MPV and MPV/P ratio at days 1, 2 and 3 were independent predictor factors of mortality using Cox proportional hazards model (HR 2,31; 95% CI 1,36–3,94), (HR 2,11; 95% CI 1,17–3,82), (HR 2,13; 95% CI 1,07–4,21) and (HR 2,38; 95% CI 1,38–4,12), (HR 2,15; 95% CI 1,14–4,06), (HR 4,43; 95% CI, 1,72–11,37) respectively. Conclusions MPV and the MPV/P ratio are predictors of clinical severity and mortality in sepsis. The MPV and its coefficient are indicators of the biological behavior of platelets in sepsis. They should be considered as a cost-effective and rapidly available tool that guides the treatment.

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.

Evaluation of platelet count and mean platelet volume in type 2 diabetes mellitus

2020 ◽  
Vol 14 (2) ◽  
pp. 34-37
Author(s):  
Priya Bhatt ◽  
◽  
Jignasa Bhalodia ◽  
Mehul Patel ◽  
◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Platelet Count ◽  
Mean Platelet Volume ◽  
Platelet Volume

scholarly journals Regular Use of VKA Prior to COVID-19 Associated with Lower 7-Day Survival in Hospitalized Frail Elderly COVID-19 Patients: The GERIA-COVID Cohort Study

Nutrients ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 39
Author(s):  
Pierre Ménager ◽  
Olivier Brière ◽  
Jennifer Gautier ◽  
Jérémie Riou ◽  
Guillaume Sacco ◽  
...  
Keyword(s):  
Cohort Study ◽  
Vitamin K ◽  
Frail Elderly ◽  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Cox Proportional Hazards ◽  
Cox Proportional Hazards Model ◽  
Clinical Severity ◽  
Survival Times ◽  
Short Term Mortality

Background. Vitamin K concentrations are inversely associated with the clinical severity of COVID-19. The objective of this cohort study was to determine whether the regular use of vitamin K antagonist (VKA) prior to COVID-19 was associated with short-term mortality in frail older adults hospitalized for COVID-19. Methods. Eighty-two patients consecutively hospitalized for COVID-19 in a geriatric acute care unit were included. The association of the regular use of VKA prior to COVID-19 with survival after 7 days of COVID-19 was examined using a propensity-score-weighted Cox proportional-hazards model accounting for age, sex, severe undernutrition, diabetes mellitus, hypertension, prior myocardial infarction, congestive heart failure, prior stroke and/or transient ischemic attack, CHA2DS2-VASc score, HAS-BLED score, and eGFR. Results. Among 82 patients (mean ± SD age 88.8 ± 4.5 years; 48% women), 73 survived COVID-19 at day 7 while 9 died. There was no between-group difference at baseline, despite a trend for more frequent use of VKA in those who did not survive on day 7 (33.3% versus 8.2%, p = 0.056). While considering “using no VKA” as the reference (hazard ratio (HR) = 1), the HR for 7-day mortality in those regularly using VKA was 5.68 [95% CI: 1.17; 27.53]. Consistently, COVID-19 patients using VKA on a regular basis had shorter survival times than the others (p = 0.031). Conclusions. Regular use of VKA was associated with increased mortality at day 7 in hospitalized frail elderly patients with COVID-19.

Mean platelet volume/platelet count ratio in hepatocellular carcinoma

Platelets ◽  
2012 ◽  
Vol 24 (5) ◽  
pp. 375-377 ◽  
Author(s):  
Sun Young Cho ◽  
John Jeongseok Yang ◽  
Eunkyoung You ◽  
Byung-Ho Kim ◽  
Jaejun Shim ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Platelet Count ◽  
Mean Platelet Volume ◽  
Platelet Volume ◽  
Count Ratio

scholarly journals Serum Inflammatory Biomarkers in the Diagnosis of Periprosthetic Joint Infections

Biomedicines ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1128
Author(s):  
Irene K. Sigmund ◽  
Stephan E. Puchner ◽  
Reinhard Windhager
Keyword(s):  
Platelet Count ◽  
Mean Platelet Volume ◽  
Preoperative Diagnosis ◽  
Clinical Symptoms ◽  
Volume Ratio ◽  
Diagnostic Value ◽  
Inflammatory Biomarkers ◽  
Platelet Volume ◽  
Joint Infections ◽  
D Dimer

Accurate preoperative diagnosis of periprosthetic joint infections (PJIs) can be very challenging, especially in patients with chronic PJI caused by low-virulence microorganisms. Serum parameters, such as serum C-reactive protein (CRP) or the erythrocyte sedimentation rate (ESR), are—among other diagnostic test methods—widely used to distinguish septic from aseptic failure after total hip or knee arthroplasty and are recommended by the AAOS in the preoperative setting. However, they are systemic parameters, and therefore, unspecific. Nevertheless, they may be the first and occasionally the only preoperative indication, especially when clinical symptoms are lacking. They are easy to obtain, cheap, and are available worldwide. In the last decade, different novel serum biomarkers (percentage of neutrophils, neutrophils to lymphocytes ratio, platelet count to mean platelet volume ratio, fibrinogen, D-Dimer, Il-6, PCT) were investigated to find a more specific and accurate serum parameter in the diagnosis of PJI. This article reviews the diagnostic value of established (serum CRP, ESR, WBC) and ‘novel’ serum inflammatory biomarkers (fibrinogen, D-dimer, interleukin-6 (IL-6), procalcitonin, percentage of neutrophils (%N), neutrophils to lymphocytes ratio (NLR), platelet count to mean platelet volume ratio (PC/mPV)) for the preoperative diagnosis of periprosthetic joint infections.

scholarly journals A pattern of platelet indices as a potential marker for prediction of pre-eclampsia among pregnant women attending a Tertiary Hospital, Ethiopia: A case-control study

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259543
Author(s):  
Solomon Gebre Bawore ◽  
Wondimagegn Adissu ◽  
Berhanu Niguse ◽  
Yilma Markos Larebo ◽  
Nigussie Abebe Ermolo ◽  
...  
Keyword(s):  
Platelet Count ◽  
Pregnant Women ◽  
Mean Platelet Volume ◽  
Case Control Study ◽  
Case Control ◽  
Platelet Distribution Width ◽  
Platelet Volume ◽  
Distribution Width ◽  
Platelet Indices ◽  
Control Study

Introduction Preeclampsia is the most serious health risk during pregnancy for both the mother and the fetus. Even though platelet parameters are among the proposed biomarkers for the prediction of preeclampsia, the use of its indices in the diagnosis of preeclampsia is not increasing in Ethiopia. There is little information on platelet patterns in preeclampsia and normal pregnancy. The purpose of this study was to determine the pattern of platelet indices in women with preeclampsia in our study setting. Methods A case-control study was conducted among 180 pregnant women who attended anti-natal follow-ups from January 1 to April 3, 2019. An Ethylene Diamine Tetra Acetic Acid anti-coagulated venous blood was collected and analyzed using a hematology analyzer (MINDRAY®-BC-300Plus, Shenzhen China). The SPSS software version 26 was used to run the Mann Whitney U test, Kruskal-Wallis H test, and Kolmogorov-Smirnov normality test, Post-hock test augmented with Benforeni, receiver operating characteristics curve, and Spear Man rank-order correlation. A P-value of <0.05 was considered statistically significant. Results A total of 180 pregnant women were included in the study. Platelet count and platelet crit levels tend to decrease as pre-eclampsia becomes more severe. In contrast, the mean platelet volume and platelet distribution widths were significantly increased with the severity of preeclampsia (P<0.001). Platelet distribution width (rho = 0.731, p<0.001) and mean platelet volume (rho = 0.674, p<0.001) had statistically significant positive relationships with mean arterial pressure. The best metric for predicting preeclampsia was platelet distribution width (AUC = 0.986; 95%CI; 0.970, 1). Conclusions Platelet indices, including platelet count, mean platelet volume, platelet distribution width, and Platelet crit, have been identified as promising candidate markers for predicting preeclampsia in pregnant women. In the future, a serial examination of these indicators during several trimesters of pregnancy should be conducted.

scholarly journals Are Mean Platelet Volume and Platelet Count Associated with Thrombus in Aneursymal Segment in Patients with Abdominal Aortic Aneursym?

2018 ◽  
Vol 56 (1) ◽  
pp. 32-36
Author(s):  
Mehmet Toptaş ◽  
Gündüz Durmuş ◽  
İbrahim Akkoç ◽  
Semi Öztürk ◽  
Mazlum Şahin ◽  
...  
Keyword(s):  
Platelet Count ◽  
Mean Platelet Volume ◽  
Platelet Volume ◽  
Abdominal Aortic
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