Mean Mean Platelet Volume Values Research Articles

The effect of the mean platelet volume on short-term prognosis in acute ischemic stroke patients who underwent intravenous thrombolytic therapy

Objective: To evaluate the effect of the mean platelet volume (MPV), on the short-term prognosis and bleeding complications of acute ischemic stroke patients who underwent intravenous tissue plasminogen activator (IV-tPA) treatment. Patients and Methods: Between 01.01.2018 and 01.06.2021, 314 ischemic stroke patients who applied to our clinic with acute neurological deficit were included in the study retrospectively. Alteplase was administered as IV-tPA treatment for 1 hour. MPV value was measured before the treatment and was evaluated as the main parameter. The patients were examined under 4 groups (≤8.8fL, >8.8 – ≤9.9, >9.9-≤10.8, >10.8fL) according to their MPV values, and age, gender, comorbidities, and treatment initiation parameters were standardized by statistical methods. It was compared whether there was a significant difference between the MPV groups in terms of short-term prognosis according to the admission National Institutes of Health Stroke Scale (NIHSS) scores and discharge NIHSS scores and also bleeding complications. Results: A total of 314 patients, 145 women with a mean age of 76.7±13.0, and 169 men with a mean age of 66.3±13.1, were included in the study. 31 patients (9.9%) died before discharge. The mean MPV value was 9.64±1.15fL and the mean NIHSS score was 9.1±4.9 at admission, and the mean NIHSS score was 4.3±4.7 at discharge. When the NIHSS difference between admission and discharge was compared in the 4 groups, it was found that the prognosis was better in Group 3 with MPV >9.9-≤10.8 compared to Groups 1 and 4. (p=0.002; p<0.01). Despite this, it was seen that low or high MPV values could not be considered as a prognostic factor alone in patients who received IV-tPA treatment, since, there was no significant difference between the 3rd group and the 2nd group in terms of NIHSS decrease and the 4th group had a worse prognosis than the 3rd group. There was no statistical significance between MPV groups in terms of hemorrhage complications (p value for intracerebral, gastrointestinal, urogenital hemorrhage complications were 0.540, 0.980, 0.783, respectively). Conclusion: In our study, it was revealed that MPV value, is not an independent risk factor in patients with acute ischemic stroke receiving IV-tPA treatment and cannot be used as a prognostic marker.

Association of Mean Platelet Volume with Grades of Hypertensive Retinopathy

Abstract Objective: Hypertension is the most prevalent non communicable disease causing deaths even before evidence of target organ damage. Platelet activation is associated with risk of vascular events. Identification of mean platelet volume (MPV) values in patients with hypertensive retinopathy (HR) can help in prognostication and risk stratification of possible complications. Materials and Methods: Patients presenting to the outpatient department over a period of 18 months underwent clinical examination, blood sampling, direct ophthalmoscopic examination, and two-dimensional echocardiography. Results: Out of 104 subjects, there were a total of 25 females and 79 males. Patients with grade 1HR had a mean MPV value of 9.4, those with grade 2 HR had a mean MPV of 9.8, among people with grade 3 HR the mean MPV was 10.1, and those with grade 4 HR had a mean MPV of 10.9. Conclusion: In our study, we have seen that MPV increases with increasing severity of HR, thus implying that MPV probably plays a role in HR. Testing of MPV can be used to decide whether preventative treatments should be instituted to the prevent the severe complications of retinopathy and thus decrease the risk and occurrence of cardiovascular and cerebrovascular events.

Understanding the Etiopathogenesis of Non-Arteritic Anterior Ischemic Optic Neuropathy with Laboratory Findings.

The role of inflammation and hemostasis in non-arteritic anterior ischemic optic neuropathy (NAION) was investigated by examining related blood tests. The predictive values of these laboratory indicators and their effects on prognosis were reviewed. In this study, 48 patients diagnosed with NAION and 50 healthy volunteers were included. All subjects underwent full ophthalmological examination. All patients were treated with oral corticosteroids (methylprednisolone 1 mg/kg/day) for 15 days after that corticosteroid medication was reduced and stopped. Each patient was monitored at least for 12 months. The mean platelet volume (MPV), platelet distribution width (PDW), neutrophil/lymphocyte ratio (NLR), and red cell distribution width (RDW) values were recorded. These findings were compared with control group. The mean MPV, RDW, and NLR values were significantly higher in NAION group (respectively, p<0.001, p=0.006, and p<0.001). There was no statistically significant difference between group 1 and group 2 in PDW values, but the mean PDW value was higher in the patient group compared to the control group (p=0.435). Based on the receiver operating characteristic (ROC) curve, the NLR had the strongest predictive value. This was followed by MPV, RDW, and PDW with lower diagnostic predictive values. MPV, NLR, and RDW were found to be elevated and have diagnostic predictive values in NAION patients. Easily accessible and simple laboratory methods could help us show systemic inflammation and ischemic events in NAION patients. As a result, inflammatory reactions besides ischemic changes may play a role in the etiopathogenesis of NAION. These biomarkers can be evaluated to ensure that patients with risk factors for the development of NAION.

Red Cell Distribution Width, Mean Platelet Volume, and Neutrophil/Lymphocyte Ratio in Patients With Irritable Bowel Syndrome.

Introduction Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder characterized by persistent abdominal pain and variable bowel patterns, impacting individuals' quality of life. Despite its functional nature, recent research has indicated the role of inflammatory processes in IBS development. This study aims to investigate the potential diagnostic value of routine blood parameters and their relationship with IBS. Methods In this retrospective analysis, patients diagnosed with IBS based on the ROME IV criteria were identified from the outpatient clinic of Hitit University Erol Olçok Teaching and Research Hospital between January 1, 2023, and May 1, 2023. Exclusion criteria encompassed specific medical conditions, psychiatric disorders, and organic bowel pathologies. A cohort of 100 IBS patients and 100 healthy controls were included for comparison. Comprehensive blood data, including neutrophil count, lymphocyte count, hemoglobin level, red cell distribution width (RDW), mean corpuscular volume (MCV), mean platelet volume (MPV), and platelet count, were collected. Statistical analyses were conducted using SPSS for Windows version 26.0 (IBM Corp., Armonk, NY). Descriptive statistics, Pearson's or Spearman's correlation coefficients, Mann-Whitney U test, and Chi-square test were used to analyze data. Results The study cohort consisted of 70 men (35%) and 130 women (65%). The average age was 51.65 ± 14.64 years (52 years). The mean neutrophil count was 4.6 ± 1.5 (4.29) in the control group and 4.7 ± 2.03 (4.12) in the IBS group. The mean lymphocyte count was 2.3 ± 0.86 (2.21) in the control group and 2.3 ± 0.82 (2.23) in the IBS group, indicating no statistically significant difference (p = 0.732). The mean RDW was measured as 13.62 ± 1.07 (13.4) in the control group and 13.68 ± 1.18 (13.55) in the IBS group, again demonstrating no significant difference (p = 0.915). Mean MCV and MPV values showed no substantial variation between the control and IBS groups (p = 0.649 and p = 0.406, respectively). Conclusion While this study did not yield statistically robust outcomes, it underscores the potential of utilizing neutrophil-to-lymphocyte ratio (NLR), RDW, and MPV as adjunctive diagnostic markers for IBS. These routine and cost-effective parameters could enhance the diagnostic process, especially in cases with suspected IBS. Continued research is essential to unravel their complete diagnostic potential and clinical applicability.

Can neutrophil-lymphocyte ratio and mean platelet volume be used to predict metastasis in individuals with lung cancer?

Chronic inflammation plays an important role in the etiopathogenesis of many life-threatening chronic diseases, including cancer. Currently, the relationship between inflammation, native immunity and cancer is widely accepted; however, many of the mechanisms mediating this relationship remain undetermined and the clinical significance of these markers is unclear. The purpose of this study was to investigate the potential of neutrophil-lymphocyte ratio (NLR) and mean platelet volume (MPV) to indicate the existence of metastasis in lung cancer. This retrospective cross-sectional study evaluated patients with lung cancer of any pathological type who was admitted to the Palliative Care Unit of the referral hospital in the region between January 2019 and February 2020. Patient characteristics, distant organ metastasis, treatments, NLR and MPV values were noted. Patients were grouped as with or without metastasis. Characters, NLR, MPV values were compared. One hundred twenty-six patients were included. The mean age of the patients was 61.17 ± 9.4 years and 7.9% (n = 10) were female. The patients with a history of chemotherapy were 47% (n = 60) and distant organ metastases were present in 38.9% (n = 49) of the patients. The mean MPV value of 49 patients with distant metastasis was 8.34 ± 0.8 fL. MPV values of those with metastasis were found to be significantly higher than those without (P = .010). There was no significant difference in NLR values between groups (P = .920). Lung cancer patients with metastasis were found with higher MPV values. MPV can be effective and most accessible test in prediction of metastasis in lung cancer patients regardless of the pathological type.

DIAGNOSTIC ROLE OF PLATELET INDICES IN PATIENTS WITH THROMBOCYTOPENIA

Introduction: Thrombocytopenia is the most common cause of abnormal bleeding and can result from Hyper destruction of platelets, Hypoproduction of platelets and Abnormal platelet pooling. The aim of this study was to evaluate role of platelet indices (MPV, PDW, PCT) in diagnosing various causes of thrombocytopenia. In this observational analytic study 600 st Methodology: udy samples were divided into two groups: 300 cases diagnosed as thrombocytopenia (1.5 lakhs /microliter) and 300 healthy control. Cases of thrombocytopenia were further classied in 3 categories depending upon the predominant mechanism of thrombocytopenia. Statistical Analysis: Mean and SD of platelet count, mean platelet volume (MPV), platelet distribution width (PDW) and plateletcrit (PCT) in each group was calculated and compared among groups using unpaired T- test. Out of 300 cases of Thrombocytopenia, Group A constituted 224 cas Results: es (75%) due to hyper destruction of platelets, Group B constituted 72 cases (24%) due to hypoproduction of platelets and Group C constituted 4 cases (1%) of Thrombocytopenia due to abnormal pooling of platelets. On comparing mean MPV and PDW values among groups, the MPV and PDW of hyper destructive thrombocytopenia was found to be higher than mean MPV and PDW of hypo productive thrombocytopenia as well as control group. The mean PCT of hyper destructive group was higher than that of hypo productive group. Combined interpretati Conclusion: on of platelet count and platelet indices are of signicant discriminating value in differentiating various causes of thrombocytopenia thus their standardized measures can signicantly increase its utility in diagnosis and understanding mechanism of various clinical condition

Plateletcrit as a prognostic marker in Hodgkin lymphoma: A pilot study

Background/Aim: Hodgkin lymphoma (HL) is a lymphoproliferative malignancy associated with inflammation. Plateletcrit (PCT) is a mean platelet volume (MPV) and platelet count-derived marker that is useful for evaluating malignancies and inflammatory diseases. International Prognostic Score (IPS-7) and more recently, IPS-3, are two indices indicating the prognosis of patients; however, widespread and easy to interpret prognostic markers are still needed for HL evaluation. Very few studies evaluating the prognostic significance of platelet indices in HL have been published, so we aimed to show the relationship between PCT and other adverse prognostic factors in HL and evaluate whether PCT can be used as a prognostic marker in HL. Methods: After excluding patients with insufficient data, 75 patients diagnosed with HL and 150 healthy controls were retrospectively analyzed in this case-control study. Evaluation of relationship of PCT and adverse HL prognostic factors, such as age, gender, hemoglobin, leukocytes, lymphocytes (absolute value and percentage), albumin, Ann Arbor stage and B symptoms, IPS-3 and-7 prognostic scores and post-treatment relapse, and progression-free survival of the patients were studied. Results: Mean MPV values were significantly lower, mean platelet values were significantly higher inpatient group (all P&lt;0.001). Patients with high sedimentation had significantly higher mean PCT than those without (P=0.031) and a moderately positive correlation between PCT and sedimentation were found (r=0.33, P&lt;0.01). Mean PCT values after treatment significantly decreased compared to baseline levels (P&lt;0.001). Conclusion: PCT may be useful as a prognostic marker in HL. Further studies were needed to evaluate the relationship between PCT and other prognostic factors, such as IPS-3 and -7.

Evaluation of the relation between HBA1C and MPV, PDW levels of patients with Type 2 diabetes admitted in internal medicine polyclinics.

Diabetes is a chronic, broad-spectrum metabolic disorder that requires continuous medical care, in which the organism cannot adequately benefit from carbohydrates, fats, and proteins due to insulin deficiency or defects in the effect of insulin. Vascular complications are considered to be the main cause of mortality in diabetic patients. Platelet activation plays a role in the development of vascular complications. The aim of this study was to evaluate the relationship between HbA1c, which is the parameters that we can evaluate in primary healthcare institutions, and increased Mean Platelet Volume (MPV) and Platelet Distribution Width (PDW) levels, which are thought to be a platelet activation markers in patients with Type 2 diabetes mellitus. In our study, the data for 600 patients who applied to Internal Medicine outpatient clinic of our hospital between January 01, 2022, and June 31, 2022, were obtained by examining their epicrisis through the hospital information management system. Six hundred patients, including 300 control group with HbA1c level below 6.5 and 100 patients each 7-8.5 8.5-10 and above 10, were included in the study. HbA1c, MPV, and PDW levels of the patients were recorded. Among 600 patients who applied to internal medicine polyclinics of our hospital between January 01, 2022, and June 31, 2022, 412 participants were female, while 188 participants were male. It was determined that the participants were 46.91±12.68 years old on average, the youngest participant was 18 years old and the oldest participant was 66 years old. It was determined that the mean HbA1c value of the participants participating in the study was 7.6±2.4, the lowest HbA1c value was 4.3, and the highest HbA1c value was 19.3. It was determined that the mean MPV value of the participants was 10.1±1.1, the lowest MPV value was 7.7, and the highest MPV value was 13.3. It was determined that the mean PDW value of the participants was 16.0±0.4, the lowest PDW value was 14.8, and the highest PDW value was 17.2. In this study, it was determined that MDV and PDW levels showed a statistically significant difference according to the HbA1c value ranges of the patient group. Accordingly, the MPV and PDW levels of the participants whose HbA1c value range is >10 are higher. It was observed that MPV and PDW levels increased as the HbA1c value range increased.

The effects of testosterone on transgender males on carotid intima-media thickness and serum inflammatory markers compared within patients with polycystic ovary syndrome

Objective: To evaluate the effects of testosterone on carotid intima-media thickness (CIMT) and serum inflammatory markers compared within transgender males (TGM-Former called female-to-male) and polycystic ovary syndrome (PCOS). Methods: The prospective observational study included 30 TGM, 30 patients with PCOS, and 30 healthy women. Groups were compared for CIMT and hematologic inflammatory markers white blood cell (WBC), lymphocyte/monocyte ratio (LMR), neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), and mean platelet volume (MPV). Results: The CIMT of the TGM group was 0.48 ± 0.09 mm was significantly higher than PCOS (0.41 ± 0.09 mm, p = .005) and the control group (0.38 ± 0.7 mm, p = .001). The mean NLR, LMR, and MPV values were similar (p > .05). TGM had higher WBC levels compared to control women (p = .029). TGM had significantly lower PLR compared to PCOS and the control group (p = .001). CIMT were related to age (r = .390, p = .04) and body mass index (BMI) (r = .392, p = .03) in TGM. Conclusion: Increased CIMT in TGM individuals is not associated with inflammation; it seems to be a deleterious effect of exogenous testosterone exposure. Since increased CIMT may be a sign of serious cardiovascular problems developing in the future, it is suggested that it will be beneficial for these individuals should undergo clinical and radiological evaluation at regular intervals.

Investigation of EGF, IL1-α and IL-6 levels and selected hematological parameters (NLR, MPV) in patients with the chronic cholesteatomatous otitis media.

In this study we aimed to investigate epidermal growth factor (EGF), interleukin (IL1)-α and IL-6 levels, and hematological parameters in the serum samples of patients with chronic cholesteatomatous otitis media (CCOM). This prospective included 40 patients who underwent surgery due to CCOM between June 2020 and May 2021. The stage of middle ear cholesteatoma was determined on each chart using the EAONO/JOS system. The control group comprised of 30 adults who were scheduled for septoplasty over the same period in our hospital, had no otological complaints, and had normal otological findings. The demographic, clinical, and laboratory data of the patients were obtained from the electronic medical record system of our hospital. The serum EGF, IL1-α and IL-6 levels, and hematological parameters (neutrophil-lymphocyte ratio (NLR) and mean platelet volume (MPV)) were compared between the CCOM and control groups. Seven patients had Stage 1 and 33 patients had Stage 2 middle ear cholestatoma. There was no statistically significant difference between the CCOM and control groups in terms of age and gender (p=0.092 and p=0.616, respectively). The serum EGF and IL1-α levels of the CCOM group were statistically significantly higher than those of the control group (p=0.047 and p=0.013, respectively). No statistically significant difference was observed in the serum IL-6 levels of the CCOM and control groups (p=0.675). There was also no significant difference between the CCOM and control groups in terms of the mean NLR and MPV values ​​(p=0.887 and p=0.164, respectively). There was no significant difference between the Stage 1 and Stage 2 cholesteatoma subgroups in terms of the mean EGF, IL1-α, IL-6 levels (p=0.204, p=0.557 and p=0.613, respectively), and the mean NLR and MPV values (p=0.487, p=0.439, respectively). Increased serum EGF and IL1-α levels in patients with CCOM suggest that these cytokines may play a role in cholesteatomatous epithelial hyperproliferation.

Evaluation of the association between platelet tests and thyroid-stimulating hormone levels in patients with vitiligo.

Vitiligo is a common dermatological disease of unknown cause and progressing with depigmentation and affects approximately 1% of the world population. In the study, we aimed to compare plateletcrit (PCT), mean platelet volume (MPV), platelet (PLT), and thyroid-stimulating hormone (TSH) values in vitiligo patients. We retrospectively evaluated the medical data of 100 patients who were admitted to the dermatology outpatient clinic between January 2020 and December 2021 with a diagnosis of vitiligo. The control group was retrospectively constituted from medical records of 90 healthy individuals. PCT, MPV, PLT, and TSH levels of both groups were compared statistically. A total of 190 participants (100 vitiligo patients and 90healthy volunteers) were included in the study. The mean age of the patient group was 38.62±1.62, while the mean age of the control group was 41.52±1.54. There were no differences between the two groups in terms of age and gender. It was found that the mean MPV value in the patient group was lower than the control group (p=0.00). PLT and PCT values were significantly higher in the patient group than the control group (p=0.00, p=0.01, respectively). There was no statistically significant difference between the two groups in terms of TSH (p>0.05). A negative correlation between MPV and PLT values in the patient group (r=-0.218, p=0.029), and a negative correlation between MPV and TSH (r=-0.218, p=0.029), (-0.230, p=0.021). In the study, a comparison of the PCT, MPV, and PLT levels showed a difference between both groups, but no differences in TSH levels. To clarify these results, comprehensive studies with more samples are needed.

Role of neutrophil-lymphocyte ratio and mean platelet volume in the outcome of atherosclerotic peripheral vascular disease interventions

Purpose: Classically, neutrophils have been neglected in the pathophysiology of atherosclerosis. However, recent studies have highlighted their role. Similarly, the role of platelets in peripheral artery disease (PAD) has become evident now. The significance of neutrophil-lymphocyte ratio (NLR) and mean platelet volume (MPV) has been independently studied and found that elevated values are associated with poor outcomes of atherosclerotic peripheral vascular disease interventions. However, the measure of association of NLR and MPV to the outcomes of intervention has not been studied. Hence, this study was undertaken to examine the measure of association of NLR and MPV to the outcomes of atherosclerotic peripheral vascular disease interventions. Methodology: This is a prospective study conducted between January 1, 2020, and September 30, 2021, with 6 months of follow-up. Patients aged 21 years or more, diagnosed to have atherosclerotic peripheral vascular disease, and undergoing interventions (endovascular and open procedure) are included in the study. Patients <21 years, not willing for any intervention, and with acute presentations were excluded. The primary endpoint assessed is graft patency at 6 months, and the secondary endpoints assessed are clinical improvement (which is a combined measure of change in ankle–brachial index, Rutherford grade, and ulcer status) at 1 and 6 months, redo procedure, and amputations within the follow-up period. Results: From January 2020 to September 2021, a total of 156 patients with atherosclerotic peripheral vascular disease fulfilled the inclusion and exclusion criteria. We observed that in 109 (69.9%) patients who had completed 6-month follow-up, 91 (83.5%) patients had graft patency and 18 (16.5%) patients had occluded graft. Independent receiver operating characteristic curve analysis of MPV and NLR showed that lower mean NLR and MPV values (cutoff taken as 10.15 for MPV) are associated with increased graft patency at 6 months than higher mean NLR and MPV values (NLR, P < 0.001; MPV, P = 0.024). Discriminant analysis model developed with MPV and NLR as the set of predictors showed that NLR and MPV together are good predictors of graft patency at 6 months (Wilk's lambda: χ2 = 45.54, P < 0.001). However, logistic regression analysis has shown that, in comparison to NLR, MPV is not a strong predictor of graft patency. Lower mean NLR value was associated with lower amputation rate (P < 0.001), lower mortality rate (P < 0.001), and higher clinical improvement rate at 1st month (P < 0.001) and at 6 months (P < 0.001) than patients with higher mean NLR. However, there was no statistically significant difference between two groups in predicting chance of redo procedure (P = 0.424). There was no statistically significant difference between the mean MPV values among patients who underwent amputation (P = 0.864), died (P = 0.640), or had redo procedure (P = 0.883), except for clinical improvement outcome where lower mean MPV value was associated with higher rate of clinical improvement at 1st month (P < 0.001) and 6 months (P < 0.001) than higher mean MPV value. Conclusion: In patients with atherosclerotic peripheral vascular disease, NLR value is a better predictor of outcomes after intervention than MPV, and lower mean NLR values are associated with increased rate of graft patency, clinical improvement, fewer amputations, and deaths.

The role of platelet mass index in the prediction of preeclampsia full

To assess the possible roles of platelet indices including platelet mass index (PMI), platelet count (PC), mean platelet volume (MPV) and PC/MPV in prediction of preeclampsia. 190 pregnant women diagnosed with preeclampsia and 100 healthy uncomplicated control patients were included in this retrospective study. Age, gestational week, fetal weight, alanine transaminase (ALT), aspartate transaminase (AST), creatinine, blood urea nitrogen (BUN), complete blood count parameters and platelet indices were compared. ROC curve was applied to analyze the cut-off values of the significantly differing parameters for prediction of preeclampsia. Preeclamptic patients gave birth significantly earlier than the controls. In preeclamptic patients, the mean values of PC, PC / MPV and PMI were significantly lower than the control group. Although mean MPV values were lower in preeclampsia patients, the difference was not significant. The cut-off values of PC, PC/MPV and PMI were found to be 207,500, 18448.16 and 2411.75 with a-sensitivity/specificity of 45.3%/ 44.3%, 42.2%/ 42.6% and 44.1%/ 44.3%, respectively. Indices such as PC, PC / MPV and PMI changed significantly in preeclampsia. Although they have low sensitivity and specificity, these indices can be combined with other parameters and used in the prediction of preeclampsia.

Are average platelet volume, red cell distribution width and platelet distribution width guiding markers for acute appendicitis treatment options?

Acute appendicitis (AA) is the most common cause of surgery performed for the acute abdomen. The standard treatment for AA patients has been appendectomy for more than a century. The use of broad-spectrum antibiotics, the medical treatment option has come to the fore in the treatment of uncomplicated AA. Evaluate whether white blood cell (WBC), platelet count, mean platelet volume (MPV), platelet distribution width (PDW), red cell distribution width (RDW) and C-reactive protein (CRP) values of patients diagnosed with uncomplicated AA clinically, with laboratory tests and radiologically with abdominal computed tomography (CT) could be a marker for choosing medical or surgical treatment. 519 patients aged between 20 and 65years who were diagnosed with uncomplicated AA by abdominal CT in our centre between January 2016 and January 2019 were retrospectively analysed. The presence of at least one of the criteria of 7mm or more appendix diameter and oedema or fluid accumulation around the appendix was accepted as uncomplicated AA. After the diagnosis of AA, 223 patients were treated medically, while 296 patients underwent laparoscopic appendectomy. The first group included patients who were treated medically and the second group included patients who underwent laparoscopic appendectomy. Group 2 patients had higher mean platelet count (P<.005) and RDW (P=.003) values compared to Group 1 patients, while mean PDW (P<.001) values were lower compared to those of Group 1 patients. The differences between the mean WBC, CRP and MPV values of the groups were not statistically significant (P>.05). Recently, studies supporting antibiotic therapy have been conducted in patients diagnosed with AA. As a result, we think that PDW, RDW, and platelet values in patients diagnosed with uncomplicated AA may be a guide in choosing patients to be treated with surgery or antibiotics.

English

BACKGROUND Thrombocytopenia may either be due to increased destruction or impaired production of platelets. Platelet count alone is not enough to determine the mechanism of low platelets. Platelet indices like mean platelet volume (MPV), platelet distribution width (PDW), platelet large cell ratio (P-LCR) and platelet crit (PCT) can help determine the cause and we aimed at finding their role and function in cases of thrombocytopenia. METHODS An observational cross-sectional study of 155 patients with thrombocytopenia and 71 controls was done for a period of six months in SGT Hospital, Gurugram, to determine the mechanism behind the low platelet count with the help of these indices. RESULTS The mean values of the platelet indices (PDW, P-LCR and PCT) were found to be higher in accelerated destruction group (P &lt; 0.05) in comparison to hypoproductive group, whereas, mean MPV values were higher in the former, but was not statistically significant. On comparison with the controls, both the groups of thrombocytopenia showed a statistically significant difference with P &lt; 0.005 in all the four indices. Mean PCT values showed a highly significant difference between the two groups as well as with controls (P &lt; 0.001) and also the relationship of PCT with severity of thrombocytopenia showed a direct relationship which was also significant (P &lt; 0.001). CONCLUSIONS In distinguishing between the cause of thrombocytopenia i.e., hypoproductive or hyper destruction, platelet parameters play an important role. These platelet indices are easily available with the help of automated haematology analysers and can reduce the need for costly and invasive tests for evaluation of thrombocytopenia. KEY WORDS Mean Platelet Volume, Platelet crit, Platelet Distribution Width, Platelet Large Cell Ratio, Thrombocytopenia

Comparison of platelet count and mean platelet volume values before and after treatment in rheumatoid arthritis and ankylosing spondylitis patients receiving tumor necrosis factor alpha inhibitor therapy

Aim: In our study, we planned to reveal the change of the mean platelet volume (MPV) with anti-TNF treatment given in patients with Rheumatoid-Arthritis (RA) and Ankylosing-Spondylitis (AS) and to evaluate the clinical importance of MPV in the follow-up of these diseases.Materials and Methods: Patients who applied to our hospital's between 2011 and 2013 were included in the study. 40 patients participated in the study. The average ages of the patients were 43.8±9.9 years (range:25-68 years). All patients were examined retrospectively, Hemoglobin (Hb), Hematocrit (Hct), Platelet count, Mean Red-Blood-Cell Volume (MCV), MPV, Erythrocyte-Sedimentation-Rate (ESR), C-Reactive Protein (CRP) before anti-TNF treatment were recorded. Then, the same values were checked six months after the treatment. Averages of the Hb, Hct, MCV, PLT, MPV, CRP, ESH parameters of patients before and after treatment were compared with each other.Results: When the values before and after the treatment were compared, there was a significant decrease in ESR (p:0.002). There was also a statistically significant increase in Hb and Hct values after treatment (p:0.002, p:0.039, respectively). A significant decrease was observed in mean platelet count and MPV values after treatment (p:0.001). Although there was an increase in the MCV value, it was not statistically significant. Likewise, there was a decrease in CRP value but it was not statistically significant.Conclusion: In this study, it was concluded that the MPV value and platelet count could be inexpensive biomarkers in the follow-up of RA and AS. However, more controlled prospective studies are needed in this regard.

CORRELATION OF INFLAMMATORY MARKERS AND CARDIAC ABNORMALITIES WITH SPIROMETRIC SEVERITY OF COPD

SESSION TITLE: Obstructive Lung Disease Posters SESSION TYPE: Original Investigation Posters PRESENTED ON: October 18-21, 2020 PURPOSE: • To study the ECG and Echocardiographic (ECHO) abnormalities in patients of COPD, and its correlation with spirometric severity • To study the levels of systemic inflammatory markers –C-Reactive protein (CRP) and Mean Platelet Volume (MPV) and its correlation with spirometric severity.• To study the correlation between inflammatory markers (CRP & MPV) and cardiac abnormalities (ECG& ECHO). METHODS: Cross sectional analytical study was conducted in the department of Respiratory Medicine,Chettinad Hospital & Research Institute,Chennai-India.The study was approved by Institutional Human Ethical Committee and conducted after obtaining informed consent. 55 stable COPD (both Inpatients & outpatients) were recruited in this study.The selected patients were subjected to Spirometry, ECG, Electrocardiography, CRP, and MPV.Data was analysed using SPSS version 17.0 and correlation of variables was done using Pearson chi-square test with p-value <0.05 as significant. RESULTS: A total of 55 stable COPD subjects, with the mean age of 56.5 years and male preponderance of 63.6% were observed. According to GOLD severity 30.9 % & 50.9 % had moderate and severe COPD respectively.58.1% were smokers among which 43.6% of smokers with pack years of >20 had moderate to severe COPD.The most common ECG pattern in Moderate and Severe COPD was p pulmonale (45.4%) followed by Right Axis Deviation (41.8%). Echocardiographic findings of Pulmonary hypertension, Right atrium and ventricle dilatation and Tricuspid regurgitation correlated significantly with severity of COPD.There was a significant increase in Mean CRP and MPV values with the severity of COPD. Subjects with cardiac abnormality had a mean MPV of >9.1 with 96.7% sensitivity and 84% of specificity.CRP levels of >6.3 were significantly observed with cardiac abnormality with 96.7% sensitivity and 84.0% specificity. CONCLUSIONS: There was a significant association of cardiac abnormalities and inflammatory markers with severity of COPD. Hence, early cardiac assessment and evaluation of inflammatory markers would enable us to predict the severity of COPD, to optimize management in order to prevent morbidity and mortality. CLINICAL IMPLICATIONS: Cardiac abnormalities in COPD have a significant correlation with inflammatory markers and severity of COPD. Hence the use of inflammatory markers would help to predict the presence of cardiac comorbidity to enable optimal treatment strategies in management of COPD DISCLOSURES: No relevant relationships by Meenakshi Narasimhan, source=Web Response No relevant relationships by Suresh SAGADEVAN, source=Web Response No relevant relationships by Aruna Shanmuganathan, source=Web Response No relevant relationships by ROSHINIDEVI SURESH, source=Web Response

Ortalama trombosit hacminin lenfosit sayısına oranı: İdiopatik ani sensörinöral işitme kaybında yeni bir belirteç

Objective: To investigate the value of mean platelet volume (MPV) to lymphocyte ratio (MPVLR), a novel marker, in determining the prognosis of sudden sensorineural hearing loss (SSNHL). Material and Method: This retrospective cross-sectional study study included the patient group consisting of 65 SSNHL and the control group consisting of 50 healthy individuals. 65 patients with SSNHL were divided into two subgroups as 44 recovered patients and 21 unrecovered patients. The SSHNL patients and the control group, and the recovered SSNHL patients and the unrecovered SSNHL patients were compared statistically in terms of MPV, lymphocyte count and MPVLR. Result(s): The mean MPV value was 9.28 ± 0.99 fL in the patients and 9.25 ±0.82 fL in the control group, and the difference was not statistically significant (p = 0,851). The mean lymphocyte count was 1.90 ± 1.02 in the study group and 2.55± 0.78 in the control group, and the difference was statistically significant (p <0.001). The mean MPVLR value was 6.44 ± 4.14 in the study group and 4.03 ± 1.62 in the control group and the difference was statistically significant (p<0,05). Conclusion(s): MPVLR is an easily accessible marker and levels are increased by severity of the disease. The lymphocyte count is also declined according to the severity of the disease. These results showed that MPVLR and lymphocyte count can help to predict the SSNHL prognosis. With future studies, the value of MPVLR in the prognosis of SSNHL may be better understood.

Is Mean Platelet Volume a Useful Noninvasive Biomarker for Inflammatory Bowel Disease in Childhood?

ABSTRACT Introduction The incidence of inflammatory bowel disease (IBD) has become a global disease in newly industrialized countries. Inflammation leads to a structural modification in platelets, and the secretion of cytokines results in a change of mean platelet volume (MPV). Aim To evaluate the relationship between IBD activity parameters and MPV. Materials and methods The study group included 26 patients [consisting of 18 ulcerative colitis (UC), 6 Crohn's disease (CD), and 2 indeterminate colitis patients] followed-up at Dr. Behçet Uz Children's Hospital between 2004 and 2016. The data of patients were screened retrospectively and the demographic, clinical and laboratory characteristics were evaluated. The changes in MPV during the activation, remission and relapse periods of the disease and correlation with other disease activity markers were investigated. Results The study group consisted of 26 IBD patients (female/male: 11/15) and 71 healthy controls. We used the Pediatric Ulcerative Colitis Activity Index and the Pediatric Crohn's Disease Activity Index to determine disease activity. The IBD group had statistically significantly higher leukocyte count and lower hemoglobin values compared with the control group (p = 0.05). The mean platelet count and MPV values were not correlated significantly with both the C-reactive protein level and erythrocyte sedimentation rate (p &gt; 0.05). Conclusion We suggest that MPV is a simple and inexpensive method that can be useful in the diagnosis of IBD but does not provide significant results to determine the disease activity. How to cite this article Çinleti T, Bağ Ö, Ecevit ÇÖ. Is Mean Platelet Volume a Useful Noninvasive Biomarker for Inflammatory Bowel Disease in Childhood? J Med Sci 2020;6(1):4–7.

Evaluation of Mean Platelet Volume Level as a Biomarker in Acute Appendicitis

Background: Acute appendicitis is one of the important causes of emergency surgeries. Diagnosis of acute appendicitis remains to be challenging with up to 30% negative exploration rates. In addition to careful clinical history and physical examination, we still need easily applicable, cheap and effective biomarker. Complete blood count is the primary investigation for any inflammatory condition. Total WBC count and neutrophil percentage are widely used biomarkers to diagnose acute appendicitis. Mean platelet volume (MPV) is an emerging biomarker that has been considered to be affected by inflammatory burden. MPV value is also estimated during complete blood count. This study may help to reveal the change of MPV in acute appendicitis.&#x0D; Study design: This was a prospective observational type of study.&#x0D; Study setting and period: The study was carried out in the Surgery In-patient Department of Dhaka Medical College Hospital, Dhaka from 15-11-2013 till 15-04-2014.&#x0D; Materials: A total of 150 patients of both sex aged 15-65 years who got admitted in the surgery department for acute appendicitis were selected. Pediatric patients (aged less than 14years), patients with co morbid illness like ischemic heart disease, inflammatory bowel disease, general peritonitis and the patients having lack of necessary investigations were excluded from the study.&#x0D; Methods: The variables like total WBC count, neutrophil percentage, platelet count and mean platelet volume (MPV) of all 150 selected patients were noted after admission by doing complete blood count and compared with normal value. The appendix samples obtained after surgery were sent for histopathological confirmation and reports were collected.&#x0D; Results: A total of 150 patients with the mean age of 25.72 (ranging 15-65) years were studied. Among them 93(62%) were male and 57(38%) were female. Mean MPV value was 11.7 ± 0.183 fL (p value 0.02). 122 patients have increased MPV value (81.33%). Among them 113 were eventually diagnosed as acute appendicitis. Negative exploration rate was 14%.Negative exploration was less among MPV raised patients (7.38%). Whereas negative exploration was more among normal MPV patients (21.42%).Total WBC count and neutriphil percentage are important biomarkers to diagnose acute appendicitis which is accepted. However this study revealed MPV value is an important biomarker in acute appendicitis also which is statistically significant and can reduce negative exploration.&#x0D; Conclusion: In this study mean platelet volume increases in acute appendicitis. MPV can be used as a biomarker in diagnosis of acute appendicitis.&#x0D; Journal of Surgical Sciences (2018) Vol. 22 (2) : 83-88