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Galardo G, Crisanti L, Gentile A, Cornacchia M, Iatomasi F, Egiddi I, Puscio E, Menichelli D, Pugliese F, Pastori D. Neutrophil to lymphocyte ratio (NLR) and short-term mortality risk in elderly acute medical patients admitted to a University Hospital Emergency Department. Intern Emerg Med 2024:10.1007/s11739-024-03683-8. [PMID: 38918300 DOI: 10.1007/s11739-024-03683-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/14/2024] [Indexed: 06/27/2024]
Abstract
Early identification of patients with a poorer prognosis in the Emergency Department (ED) is crucial for prompt treatment and resource allocation. We investigated the relationship between the Neutrophil to Lymphocyte Ratio (NLR) and 30-day mortality in elderly acute medical patients. Prospective single-center cohort study including consecutive patients admitted to the ED. Inclusion criteria were age > 65 years and medical condition as the cause of ED access. Exclusion criteria were patients admitted for traumatic injuries or non-traumatic surgical diseases. ROC analysis was used to set the best cut-off of the NLR for mortality. 953 patients were included and 142 (14.9%) died during follow-up. ROC analysis showed a good predictive value of the NLR with an AUC 0.70, 95%CI 0.67-0.73 (p < 0.001) and identified a NLR > 8 as the best cut-off. Patients with NLR > 8 had a more serious triage code (72.6% had a triage code ≤ 2) and an increased heart rate and body temperature. They more often presented with dyspnea, abdominal pain, falls and vomiting. They also were characterized by an increase in urea, creatinine, white blood cells, neutrophils, fibrinogen, D-dimer, glycemia, CRP, LDH and transaminases and by a decrease in eGFR, of lymphocytes and monocytes. Multivariable logistic regression analysis demonstrated that the NLR remained associated with mortality after adjustment for confounders (Odds ratio 2.563, 95%CI 1.595-4.118, p < 0.001). Patients with NLR > 8 showed a higher mortality rate. NLR is an easy and inexpensive tool that may be used for risk stratification in the ED. The results of this study need to be validated in larger external cohorts.
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Affiliation(s)
- Gioacchino Galardo
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
- Medical Emergency Unit, Policlinico Umberto I, Rome, Italy
| | - Luca Crisanti
- Postgraduate School of Emergency Medicine, Sapienza University of Rome, 00189, Rome, Italy
| | - Andrea Gentile
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Marco Cornacchia
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Francesca Iatomasi
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Iacopo Egiddi
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Emanuele Puscio
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Danilo Menichelli
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Francesco Pugliese
- Department of General Surgery and Surgical Specialties Paride Stefanini, Sapienza University of Rome, Rome, Italy
| | - Daniele Pastori
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
- IRCCS Neuromed, Località Camerelle, 86077, Pozzilli, IS, Italy.
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Xu J, Tan L, Jiang N, Li F, Wang J, Wang B, Li S. Assessment of nomogram model for the prediction of esophageal variceal hemorrhage in hepatitis B-induced hepatic cirrhosis. Eur J Gastroenterol Hepatol 2024; 36:758-765. [PMID: 38683192 PMCID: PMC11045406 DOI: 10.1097/meg.0000000000002750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/12/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Esophageal variceal (EV) hemorrhage is a life-threatening consequence of portal hypertension in hepatitis B virus (HBV) -induced cirrhotic patients. Screening upper endoscopy and endoscopic variceal ligation to find EVs for treatment have complications, contraindications, and high costs. We sought to identify the nomogram models (NMs) as alternative predictions for the risk of EV hemorrhage. METHODS In this case-control study, we retrospectively analyzed 241 HBV-induced liver cirrhotic patients treated for EVs at the Second People's Hospital of Fuyang City, China from January 2021 to April 2023. We applied univariate analysis and multivariate logistic regression to assess the accuracy of various NMs in EV hemorrhage. The area under the curve (AUC) and calibration curves of the receiver's operating characteristics were used to evaluate the predictive accuracy of the nomogram. Decision curve analysis (DCA) was used to determine the clinically relevant of nomograms. RESULTS In the prediction group, multivariate logistic regression analysis identified platelet distribution and spleen length as independent risk factors for EVs. We applied NMs as the independent risk factors to predict EVs risk. The NMs fit well with the calibration curve and have good discrimination ability. The AUC and DCA demonstrated that NMs with a good net benefit. The above results were validated in the validation cohort. CONCLUSION Our non-invasive NMs based on the platelet distribution width and spleen length may be used to predict EV hemorrhage in HBV-induced cirrhotic patients. NMs can help clinicians to increase diagnostic performance leading to improved treatment measures.
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Affiliation(s)
- Jing Xu
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
| | - Lin Tan
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
| | - Ning Jiang
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
| | - Fengcheng Li
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
| | - Jinling Wang
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
| | - Beibei Wang
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
| | - Shasha Li
- Department of Hepatology, The Second People’s Hospital of Fuyang City, Fuyang, Anhui Province, P.R. of China
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Hassan M, Abdayem C, El Daouk S, Matar BF. Correlation of Hemoglobin Level With New Inflammatory Markers in the Emergency Department: A Retrospective Study Exploring Neutrophil-to-Lymphocyte, Monocyte-to-Lymphocyte, Platelet-to-Lymphocyte, and Mean Platelet Volume-to-Platelet Count Ratios. Cureus 2024; 16:e55401. [PMID: 38562344 PMCID: PMC10984368 DOI: 10.7759/cureus.55401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2024] [Indexed: 04/04/2024] Open
Abstract
Background Anemia of chronic disease is known to be associated with inflammation. However, the relationship between hemoglobin (Hb) levels and potential inflammatory markers such as neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), and mean platelet volume-to-platelet count ratio (MPV/PC) has not been extensively studied. The primary objective of this retrospective analytical study conducted at Al Zahraa Hospital University Medical Center (ZHUMC), Beirut, was to investigate the correlation between Hb levels and potential inflammatory markers (NLR, MLR, PLR, MPV/PC) in patients visiting the emergency department (ED), across different genders and age groups. The secondary objectives were to compare Hb levels and inflammatory markers values between the referred medical ward group (the hospitalized patients who were admitted to the medical ward), and the non-referred to medical ward group (the patients who were discharged home from the ED), and to evaluate the predictability of inflammatory markers and Hb levels for referral to the medical ward, including the determination of optimal cutoff values for hospital admission to the medical ward. Methods We analyzed the blood parameters of 379 adult patients who presented to the ED with various medical complaints between September 1, 2022, and November 30, 2022 (three months). These patients were included in the study after we checked their eligibility regarding the verification of all our inclusion and exclusion criteria. Results Our findings revealed a significant negative correlation between Hb levels and PLR (r = -0.24) in both genders and across different age groups. The group referred to the medical ward exhibited lower Hb levels and higher NLR, MLR, and PLR values (P < 0.001). NLR/Hb ratio emerged as a predictive factor for admission in genitourinary (R² = 0.158; OR = 5.62) and respiratory groups (R² = 0.206; OR = 5.89), with specific cutoff values of 0.533 (Sensitivity = 57.1% & Specificity = 84.2%) and 0.276 (Sensitivity = 85% & Specificity = 51.1%), respectively. Conclusions Our study demonstrates that hemoglobin level negatively correlates with PLR. NLR, MLR, and PLR stand as important inflammatory markers. Moreover, we present the first study in the literature to show that NLR/Hb ratio can serve as a predictor for referral to the medical ward, particularly in the genitourinary and respiratory patient groups, underscoring its value in risk assessment as a prognostic marker reflecting the need for admission when the case is more serious.
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Affiliation(s)
- Majd Hassan
- Department of Medicine, Faculty of Medical Sciences, Lebanese University, Beirut, LBN
| | - Charbel Abdayem
- Department of Medicine, Faculty of Medical Sciences, Lebanese University, Beirut, LBN
| | - Sarine El Daouk
- Department of Medicine, Faculty of Public Health 1, Lebanese University, Beirut, LBN
| | - Bassam F Matar
- Department of Hematology and Oncology, Lebanese University, Al-Zahraa Hospital University Medical Center, Beirut, LBN
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Kim S, Lim JH, Ko HH, Lee HK, Ra YJ, Kim K, Kim HS. Outcomes of Extracorporeal Membrane Oxygenation in COVID-19: A Single-Center Study. J Chest Surg 2024; 57:36-43. [PMID: 38057954 DOI: 10.5090/jcs.23.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/09/2023] [Accepted: 10/24/2023] [Indexed: 12/08/2023] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) can lead to acute respiratory failure, which frequently necessitates invasive mechanical ventilation and extracorporeal membrane oxygenation (ECMO). However, the limited availability of ECMO resources poses challenges to patient selection and associated decision-making. Consequently, this retrospective single-center study was undertaken to evaluate the characteristics and clinical outcomes of patients with COVID-19 receiving ECMO. Methods Between March 2020 and July 2022, 65 patients with COVID-19 were treated with ECMO and were subsequently reviewed. Patient demographics, laboratory data, and clinical outcomes were examined, and statistical analyses were performed to identify risk factors associated with mortality. Results Of the patients studied, 15 (23.1%) survived and were discharged from the hospital, while 50 (76.9%) died during their hospitalization. The survival group had a significantly lower median age, at 52 years (interquartile range [IQR], 47.5-61.5 years), compared to 64 years (IQR, 60.0-68.0 years) among mortality group (p=0.016). However, no significant differences were observed in other underlying conditions or in factors related to intervention timing. Multivariable analysis revealed that the requirement of a change in ECMO mode (odds ratio [OR], 366.77; 95% confidence interval [CI], 1.92-69911.92; p=0.0275) and the initiation of continuous renal replacement therapy (CRRT) (OR, 139.15; 95% CI, 1.95-9,910.14; p=0.0233) were independent predictors of mortality. Conclusion Changes in ECMO mode and the initiation of CRRT during management were associated with mortality in patients with COVID-19 who were supported by ECMO. Patients exhibiting these factors require careful monitoring due to the potential for adverse outcomes.
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Affiliation(s)
- Sahri Kim
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Jung Hyun Lim
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Ho Hyun Ko
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Hong Kyu Lee
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Yong Joon Ra
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Kunil Kim
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Hyoung Soo Kim
- Department of Thoracic and Cardiovascular Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
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Kocoglu Barlas U, Akcay N, Talip M, Menentoglu ME, Sevketoglu E. Is the prognosis of traumatic critically ill pediatric patients predictable? : A multicenter retrospective analysis. Wien Klin Wochenschr 2023; 135:639-645. [PMID: 37684531 DOI: 10.1007/s00508-023-02269-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 08/05/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND In this retrospective study the effects of the neutrophil to lymphocyte ratio (NLR), monocyte to lymphocyte ratio (MLR), mean platelet volume to platelet count ratio (MPV/PC) values as well as C‑reactive protein (CRP) and procalcitonin (PCT) levels on the severity and mortality in critically ill child trauma cases were evaluated. METHODS A total of 80 trauma cases aged 31 days to 16 years that were followed-up in the pediatric intensive care unit (PICU) were included in the study. The data of the patients on the first day of hospitalization (T1), the median day of intensive care admission (T2), and before discharge or exitus (T3) were analyzed. The cases were divided into three groups according to the injury severity score (ISS) as minor, moderate, and severe. RESULTS Of the 80 cases 59 (73.75%) were male and 21 (26.25%) were female. The mean age of all the cases was 54.5 ± 47.8 months, and the mean PICU stay was 7.35 ± 6.64 days. Of the cases 19 (23.75%) due to motor vehicle accidents and 61 (76.25%) due to falling from heights were followed-up. The mortality rate was found to be 13.75% (11 cases). The T1, T2 and T3 NLR, MLR, MPV/PC and PCT values did not differ between the groups. The T1 and T2 CRP levels were higher in the moderate trauma group than in the severe trauma group. Also, ISS and pediatric risk of mortality 3 (PRISM-3) scores were higher while the revised injury severity classification version II (RISC II), RISC II survival and Glasgow coma scale (GCS) scores were lower in the nonsurvivors. While the T3 MLR value was lower in nonsurvival cases, the T3 MPV/PC value was found to be higher. CONCLUSION The NLR, MLR, and MPV/PC values do not predict the severity of the trauma in children. In children with severe trauma, low MLR and high MPV/PC values can be used to predict mortality.
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Affiliation(s)
- Ulkem Kocoglu Barlas
- Istanbul Medeniyet University, Faculty of Medicine, Goztepe Prof Dr Suleyman Yalcin City Hospital, Istanbul, Turkey.
| | - Nihal Akcay
- University of Health Sciences Turkey, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey
| | - Mey Talip
- University of Health Sciences Turkey, Prof Dr Cemil Tascioglu City Hospital, Istanbul, Turkey
| | - Mehmet Emin Menentoglu
- University of Health Sciences Turkey, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - Esra Sevketoglu
- University of Health Sciences Turkey, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Istanbul, Turkey
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Kieninger B, Kilger M, Foltan M, Gruber M, Lunz D, Dienemann T, Schmid S, Graf B, Wiest C, Lubnow M, Müller T, Salzberger B, Schneider-Brachert W, Kieninger M. Prognostic factors for favorable outcomes after veno-venous extracorporeal membrane oxygenation in critical care patients with COVID-19. PLoS One 2023; 18:e0280502. [PMID: 36662898 PMCID: PMC9858373 DOI: 10.1371/journal.pone.0280502] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/03/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Patients with COVID-19 and severe acute respiratory failure may require veno-venous extracorporeal membrane oxygenation (VV ECMO). Yet, this procedure is resource-intensive and high mortality rates have been reported. Thus, predictors for identifying patients who will benefit from VV ECMO would be helpful. METHODS This retrospective study included 129 patients with COVID-19 and severe acute respiratory failure, who had received VV ECMO at the University Medical Center Regensburg, Germany, between 1 March 2020 and 31 December 2021. Patient-specific factors and relevant intensive-care parameters at the time of the decision to start VV ECMO were investigated regarding their value as predictors of patient survival. In addition, the intensive-care course of the first 10 days of VV ECMO was compared between survivors and patients who had died in the intensive care unit. RESULTS The most important parameters for predicting outcome were patient age and platelet count, which differed significantly between survivors and non-survivors (age: 52.6±8.1 vs. 57.4±10.1 years, p<0.001; platelet count before VV ECMO: 321.3±132.2 vs. 262.0±121.0 /nL, p = 0.006; average on day 10: 199.2±88.0 vs. 147.1±57.9 /nL, p = 0.002). A linear regression model derived from parameters collected before the start of VV ECMO only included age and platelet count. Patients were divided into two groups by using receiver operating characteristics (ROC) analysis: group 1: 78% of patients, mortality 26%; group 2: 22% of patients, mortality 75%. A second linear regression model included average blood pH, minimum paO2, and average pump flow on day 10 of VV ECMO in addition to age and platelet count. The ROC curve resulted in two cut-off values and thus in three groups: group 1: 25% of patients, mortality 93%; group 2: 45% of patients, mortality 31%; group 3: 30% of patients, mortality 0%.
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Affiliation(s)
- Bärbel Kieninger
- Department of Infection Prevention and Infectious Diseases, University Medical Center Regensburg, Regensburg, Germany
| | - Magdalena Kilger
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Maik Foltan
- Department of Cardiac, Thoracic and Cardiovascular Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Michael Gruber
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Dirk Lunz
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Thomas Dienemann
- Department of Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Stephan Schmid
- Department of Internal Medicine I, University Medical Center Regensburg, Regensburg, Germany
| | - Bernhard Graf
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Clemens Wiest
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Matthias Lubnow
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Thomas Müller
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Bernd Salzberger
- Department of Infection Prevention and Infectious Diseases, University Medical Center Regensburg, Regensburg, Germany
| | - Wulf Schneider-Brachert
- Department of Infection Prevention and Infectious Diseases, University Medical Center Regensburg, Regensburg, Germany
| | - Martin Kieninger
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
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Zheng Y, Luo Z, Cao Z. Mean platelet volume as a predictive biomarker for in-hospital mortality in patients receiving invasive mechanical ventilation. BMC Pulm Med 2022; 22:353. [PMID: 36115956 PMCID: PMC9482743 DOI: 10.1186/s12890-022-02155-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/13/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Although mean platelet volume (MPV) has been reported to be associated with poor prognosis of various critical illness, the relationship between MPV and in-hospital mortality among patients undergoing invasive mechanical ventilation (IMV) is unclear.
Methods
A retrospective observational study including patients receiving IMV was conducted from January, 2014 to January, 2019. The patients were divided into two groups by MPV cutoff value. The receiver operating characteristics curve was used to evaluate the predictive ability of MPV for in-hospital mortality. Univariate and multivariate Cox regression analysis were conducted to analyze the value of MPV for predicting in-hospital mortality. Kaplan–Meier cumulative incidence curve was employed to observe the incidence of in-hospital mortality.
Results
A total of 274 patients were enrolled in the study, and 42 patients (15.3%) died in hospital. MPV > 11.4 fl was a valuable predictor for in-hospital mortality (AUC0.848; 95%CI, 0.800–0.889) with sensitivity 66.7%, and specificity = 86.21%. MPV > 11.4 fl was an independent risk factor for in-hospital mortality (adjusted HR 2.640, 95%CI, 1.208–5.767, P = 0.015). Compared to the group of MPV ≤ 11.4 fl, patients with MPV > 11.4 fl had increased mortality (log-rank test = 40.35, HR = 8.723, P < 0.0001). The relationship between MPV and in-hospital mortality was stronger in female patients than in male patients.
Conclusion
MPV > 11.4 fl is a more useful marker for predicting in-hospital mortality among critically ill patients receiving IMV, especially in female patients. Attention to the MPV marker is simple and profitable with immediate applicability in daily clinical practice.
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Quispe-Pari JF, Gonzales-Zamora JA, Munive-Dionisio J, Castro-Contreras C, Villar-Astete A, Kong-Paravicino C, Vilcapoma-Balbin P, Hurtado-Alegre J. Mean Platelet Volume as a Predictor of COVID-19 Severity: A Prospective Cohort Study in the Highlands of Peru. Diseases 2022; 10:diseases10020022. [PMID: 35466192 PMCID: PMC9044747 DOI: 10.3390/diseases10020022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/04/2022] [Accepted: 04/13/2022] [Indexed: 11/16/2022] Open
Abstract
Introduction: Although 80% of symptomatic individuals with COVID-19 develop mild forms, it is the severe (15%) and critical (5%) forms that have the greatest impact in the hospital setting. Recognizing markers that can predict severe forms is essential, especially in high-altitude populations. Methods: We conducted a prospective cohort study at 3200 masl (meters above sea level) in a city in Peru to determine if MPV (mean platelet volume) level is a predictor of COVID-19 severity. Patients with mild/moderate disease were enrolled and followed for 21 days or until the development of severe disease (primary outcome). A bivariate analysis was used to identify variables associated with severe disease. A ROC analysis determined the best MPV (mean platelet count) cut-off to predict COVID-19 severity, and then, a multiple regression analysis was performed. Results: 64 patients were enrolled. The median age was 48.5 years (IQT 39–64.5) and the proportion of women was 51.6%, the most frequent symptoms were chest pain (73%), fever (71%), and dyspnea (67%). The median time to develop a severe form from the onset of symptoms was 11 days (IQT 10.5–13). The most common radiographic phase on CT scan (computed tomography) was progressive (60.38%). We observed that an MPV of more than 10.15 fL in the first week of disease predicted severity regardless of age and sex at high altitudes. Conclusions: MPV in the first week of the disease may predict severity in patients diagnosed with COVID-19 at high altitudes; however, we need prospective studies with a larger population and at a different altitude, levels to confirm these findings.
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Affiliation(s)
- Jhosef Franck Quispe-Pari
- Infectology Unit, Department of Medicine, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru; (J.F.Q.-P.); (J.M.-D.); (P.V.-B.); (J.H.-A.)
- Faculty of Human Medicine, Universidad Nacional del Centro del Peru, Huancayo 12004, Peru
| | - Jose Armando Gonzales-Zamora
- Infectious Disease Division, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Peruvian American Medical Society, Albuquerque, NM 87111, USA
- Correspondence: ; Tel.: +1-706-284-3510
| | - Judith Munive-Dionisio
- Infectology Unit, Department of Medicine, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru; (J.F.Q.-P.); (J.M.-D.); (P.V.-B.); (J.H.-A.)
| | - Cristhian Castro-Contreras
- Clinical Pathology Unit, Department of Diagnostic, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru; (C.C.-C.); (C.K.-P.)
| | - Abelardo Villar-Astete
- Radiology Unit, Department of Diagnostic, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru;
| | - Cesar Kong-Paravicino
- Clinical Pathology Unit, Department of Diagnostic, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru; (C.C.-C.); (C.K.-P.)
| | - Pierina Vilcapoma-Balbin
- Infectology Unit, Department of Medicine, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru; (J.F.Q.-P.); (J.M.-D.); (P.V.-B.); (J.H.-A.)
- Facultad de Medicina Humana, Universidad Continental, Huancayo 12004, Peru
| | - Jorge Hurtado-Alegre
- Infectology Unit, Department of Medicine, Hospital Nacional Ramiro Prialé Prialé, Huancayo 12004, Peru; (J.F.Q.-P.); (J.M.-D.); (P.V.-B.); (J.H.-A.)
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Vélez-Páez JL, Legua P, Vélez-Páez P, Irigoyen E, Andrade H, Jara A, López F, Pérez-Galarza J, Baldeón L. Mean platelet volume and mean platelet volume to platelet count ratio as predictors of severity and mortality in sepsis. PLoS One 2022; 17:e0262356. [PMID: 34990467 PMCID: PMC8735631 DOI: 10.1371/journal.pone.0262356] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 12/21/2021] [Indexed: 01/20/2023] Open
Abstract
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.
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Affiliation(s)
- Jorge Luis Vélez-Páez
- Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito, Ecuador
- Centro de Investigación Clínica en Medicina Crítica, Hospital Pablo Arturo Suárez, Quito, Ecuador
| | - Pedro Legua
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Pablo Vélez-Páez
- Centro de Investigación Clínica en Medicina Crítica, Quito, Ecuador
- Unidad de Terapia Intensiva, Hospital General IESS de Ibarra, Imbabura, Ecuador
| | - Estefanía Irigoyen
- Centro de Investigación Clínica en Medicina Crítica, Hospital Pablo Arturo Suárez, Quito, Ecuador
| | - Henry Andrade
- Unidad de Terapia Intensiva, Hospital General IESS de Ibarra, Imbabura, Ecuador
| | - Andrea Jara
- Unidad de Emergencia, Hospital Básico de Machachi, Pichincha, Ecuador
| | - Fernanda López
- Instituto de Posgrado Medicina Crítica y Terapia Intensiva, Universidad Central del Ecuador, Quito, Ecuador
| | - Jorge Pérez-Galarza
- Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito, Ecuador
- Instituto de Investigación en Biomedicina, Universidad Central del Ecuador, Quito, Ecuador
| | - Lucy Baldeón
- Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito, Ecuador
- Instituto de Investigación en Biomedicina, Universidad Central del Ecuador, Quito, Ecuador
- * E-mail:
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10
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CAVALIERE F, BIANCOFIORE G, BIGNAMI E, DE ROBERTIS E, GIANNINI A, GRASSO S, PIASTRA M, SCOLLETTA S, TACCONE FS, TERRAGNI P. A year in review in Minerva Anestesiologica 2021. Critical care. Minerva Anestesiol 2022; 88:89-100. [DOI: 10.23736/s0375-9393.21.16409-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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11
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The Underestimated Role of Platelets in Severe Infection a Narrative Review. Cells 2022; 11:cells11030424. [PMID: 35159235 PMCID: PMC8834344 DOI: 10.3390/cells11030424] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/16/2022] [Accepted: 01/23/2022] [Indexed: 12/13/2022] Open
Abstract
Beyond their role in hemostasis, platelets have emerged as key contributors in the immune response; accordingly, the occurrence of thrombocytopenia during sepsis/septic shock is a well-known risk factor of mortality and a marker of disease severity. Recently, some studies elucidated that the response of platelets to infections goes beyond a simple fall in platelets count; indeed, sepsis-induced thrombocytopenia can be associated with—or even anticipated by—several changes, including an altered morphological pattern, receptor expression and aggregation. Of note, alterations in platelet function and morphology can occur even with a normal platelet count and can modify, depending on the nature of the pathogen, the pattern of host response and the severity of the infection. The purpose of this review is to give an overview on the pathophysiological interaction between platelets and pathogens, as well as the clinical consequences of platelet dysregulation. Furthermore, we try to clarify how understanding the nature of platelet dysregulation may help to optimize the therapeutic approach.
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12
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Mobarki AA, Dobie G, Saboor M, Madkhali AM, Akhter MS, Hakamy A, Humran A, Hamali Y, Jackson DE, Hamali HA. MPR and NLR as Prognostic Markers in ICU-Admitted Patients with COVID-19 in Jazan, Saudi Arabia. Infect Drug Resist 2021; 14:4859-4864. [PMID: 34848978 PMCID: PMC8627266 DOI: 10.2147/idr.s342259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/09/2021] [Indexed: 12/22/2022] Open
Abstract
Objective The aims of the current study were to evaluate the importance of MPR and NLR as prognostic markers in ICU-admitted COVID-19 patients and to investigate the impact of COVID-19 on hematological and coagulation parameters in patients from Jazan region of Saudi Arabia. Methods This retrospective study was conducted between October 2020 and January 2021 at King Fahad Central Hospital, Jazan region. Medical files, which included the results of complete blood count (CBC), calculated mean platelet volume to platelet count ratio (MPR) and neutrophils-to-lymphocytes ratio (NLR) parameters, coagulation profile and D-dimer test, of 96 (64 male and 32 female) COVID-19-infected patients admitted to the intensive care unit were reviewed. Associations between the test results and COVID-19 infection outcomes (discharged [DC] or passed away [PA]) were measured. Results The results of the current study demonstrate overall significant differences in CBC parameters between PA group as compared to DC group (P < 0.05). The PA group had a significantly elevated MPR (10.15±12.16 vs 4.04±1.5; P < 0.01) and NLR (18.29±19.82 vs 7.35±9.68; P < 0.01) as compared to the DC group, suggesting an association between these parameters and mortality. Odds ratios analysis also showed that adjustment for demographic variables and comorbidities did not weaken the observed association. Conclusion Elevated MPR and NLR are associated with poor prognosis in COVID-19 patients and could be useful as therapy management indicators.
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Affiliation(s)
- Abdullah A Mobarki
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
| | - Gasim Dobie
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
| | - Muhammad Saboor
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia.,Medical Research Center, Jazan University, Gizan, Saudi Arabia
| | - Aymen M Madkhali
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
| | - Mohammad S Akhter
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
| | - Ali Hakamy
- Department of Respiratory Therapy, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
| | - Adel Humran
- Respiratory Care Department, King Fahad Central Hospital, Gizan, Saudi Arabia
| | - Yousof Hamali
- Radiodiagnostics and Medical Imaging Department, Prince Sultan Medical City, Riyadh, Saudi Arabia
| | - Denise E Jackson
- Thrombosis and Vascular Diseases Laboratory, School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Bundoora, VIC, Australia
| | - Hassan A Hamali
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
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ERASLAN DOĞANAY G, CIRIK MÖ. Determinants of intensive care prognosis in patients with “platelet indices” in chronic obstructive pulmonary disease and lung cancer. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2021. [DOI: 10.32322/jhsm.904057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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14
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Dahlen B, Schulz A, Göbel S, Tröbs SO, Schwuchow-Thonke S, Spronk HM, Prochaska JH, Arnold N, Lackner KJ, Gori T, Ten Cate H, Münzel T, Wild PS, Panova-Noeva M. The impact of platelet indices on clinical outcome in heart failure: results from the MyoVasc study. ESC Heart Fail 2021; 8:2991-3001. [PMID: 33939298 PMCID: PMC8318485 DOI: 10.1002/ehf2.13390] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/15/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Aims Platelet indices have been associated with traditional cardiovascular risk factors, cardiovascular diseases and all‐cause mortality. This study aimed to investigate the role of platelet count, mean platelet volume (MPV) and platelet‐to‐leukocyte ratio, including platelet‐to‐monocyte and platelet‐to‐lymphocyte ratio with cardiac function, heart failure (HF) phenotypes and clinical outcome, worsening of HF. Methods and results Univariate and multivariable linear and Cox regression analyses were used to investigate the associations between platelet indices, cardiac function and worsening of HF in 3250 subjects enrolled in the MyoVasc study. Higher MPV, lower platelet count, lower platelet‐to‐leukocyte and platelet‐to‐monocyte ratios have been associated with reduced left ventricular ejection fraction (beta estimate [β]MPV [fL] = −0.05 [−0.09; −0.02], βplatelet count (× 10/L)9 = 3.4 [1.2; 5.6], βplatelet‐to‐leukocyte ratio = 1.4 [1.1; 1.8], βplatelet‐to‐monocyte ratio = 28 [20; 36]) and increased E/E' ratio (β MPV [fL] = 0.04 [0.003; 0.07], βplatelet count (× 10/L)9 = −3.1 [−5.3; −0.92], βplatelet‐to‐leukocyte ratio = −0.83 [−1.2; −0.46], βplatelet‐to‐monocyte ratio = −20 [−28; −12]), independent of age and sex. Cox regression demonstrated an increased risk for worsening of HF in subjects with MPV > 75th percentile (hazard ratio [HR] = 1.47 [1.16; 1.87]), platelet count < 25th percentile (HR = 1.36 [1.07; 1.74]), platelet‐to‐leukocyte < 25th percentile (HR = 1.53 [1.20; 1.95]), platelet‐to‐monocyte < 25th percentile (HR = 1.38 [1.08; 1.77]) and platelet‐to‐lymphocyte > 75th percentile (HR = 1.50 [1.17; 1.93]) ratios, independent of potential confounders. MPV > 75th percentile and platelet count < 25th percentile were strongly related to outcome in HFpEF vs. HFrEF (P for difference = 0.040). Platelet‐to‐leukocyte ratios were associated with worse outcome in both HF phenotypes, without a significant difference between HFpEF and HFrEF. Conclusions Platelet indices are linked with worse cardiac function and adverse clinical outcome, independent of subjects' underlying cardiovascular profile. This study emphasizes their important value to provide additional information on pathophysiology and risk stratification in HF syndrome.
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Affiliation(s)
- Bianca Dahlen
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Andreas Schulz
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Sebastian Göbel
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Sven-Oliver Tröbs
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Sören Schwuchow-Thonke
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Henri M Spronk
- Laboratory for Clinical Thrombosis and Hemostasis, Department of Internal Medicine, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jürgen H Prochaska
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, Mainz, Germany
| | - Natalie Arnold
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Karl J Lackner
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, Mainz, Germany.,Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tommaso Gori
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, Mainz, Germany.,Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Hugo Ten Cate
- Laboratory for Clinical Thrombosis and Hemostasis, Department of Internal Medicine, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Thomas Münzel
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, Mainz, Germany.,Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Philipp S Wild
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, Mainz, Germany
| | - Marina Panova-Noeva
- Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, Mainz, Germany
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15
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Mangalesh S, Dudani S, Malik A. Platelet Indices and Their Kinetics Predict Mortality in Patients of Sepsis. Indian J Hematol Blood Transfus 2021; 37:600-608. [PMID: 33776267 PMCID: PMC7988247 DOI: 10.1007/s12288-021-01411-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 02/09/2021] [Indexed: 12/13/2022] Open
Abstract
Platelet indices are inexpensive, easily accessible parameters and potentially useful prognostic indicators in sepsis. In this study we explore the differences in platelet indices and their kinetics between sepsis survivors and non-survivors. A retrospective cohort-study of 97 cases of culture-positive sepsis at a tertiary-care center in North India. Demographics, clinical and laboratory parameters at admission were assessed. Platelet count (PLT), mean-platelet-volume (MPV), platelet-distribution-width (PDW) and plateletcrit (PCT) on admission, and third, fifth and last days of hospitalization were analyzed. Fractional change in platelet indices (ΔMPV72h, ΔPDW72h, ΔPCT72h, and ΔPLT72h) by day-3 were calculated. Unpaired and paired t-tests were used to compare survivors with non-survivors, and to study the change in platelet indices with time. Logistic regression was used for multivariate analysis. ROC-curves and optimum cut-offs to predict mortality were obtained. There were 64 survivors. Non-survivors had significantly higher ΔMPV72h, ΔPDW72h, day-1 MPV and PDW, and lower ΔPLT72h. MPV and PDW increased, and PLT decreased with time among non-survivors. Trends were reversed in survivors. Only MPV and PDW showed significant change by day-3. Both were independent predictors of mortality on multivariate analysis, alongside ΔMPV72h and ΔPLT72h. On ROC analysis, MPV, PDW, ΔMPV72h, ΔPDW72h and ΔPLT72h effectively predicted mortality. Cut-off for MPV was 10.25 fL (sensitivity = 93.9%, specificity = 60.9%), and PDW, 12.6% (sensitivity = 84.8%, specificity = 51.6%). A rise in MPV and a fall in PLT was associated with mortality in this study. MPV and PDW values at admission are effective predictors of mortality and may be used in conjunction with traditional parameters.
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Affiliation(s)
| | - Sharmila Dudani
- Department of Pathology, Army College of Medical Sciences, Delhi, New Delhi India
| | - Ajay Malik
- Department of Pathology, Army College of Medical Sciences, Delhi, New Delhi India
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16
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Junare PR, Debnath P, Nair S, Chandnani S, Udgirkar S, Thange R, Jain S, Deshmukh R, Debnath P, Rathi P, Contractor Q, Deshpande A. Complete hemogram: simple and cost-effective in staging and predicting outcome in acute pancreatitis. Wien Klin Wochenschr 2021; 133:661-668. [PMID: 33620577 DOI: 10.1007/s00508-021-01821-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 01/22/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND An important goal in management of acute pancreatitis (AP) is early prediction and recognition of disease severity. Various predictive scoring systems are in clinical use with their own limitations and there is always a quest for simple, practical, quantifiable, dynamic and readily available markers for predicting disease severity and outcome. Complete hemogram is routinely ordered in all patients with AP. In recent years red cell distribution width (RDW), neutrophil-lymphocyte ratio (NLR), lymphocyte-monocyte ratio (LMR) and platelet lymphocyte ratio (PLR) have been found to be independent predictors of prognosis in various benign and malignant conditions. This prospective study evaluated complete hemogram based markers in AP. MATERIAL AND METHODS Complete hemogram analysis was done and NLR, LMR, PLR values were calculated. Development of organ failure, the need for intensive care unit (ICU) admission and interventions, development of complications (local/systemic) and 100-day mortality were assessed. RESULTS In this study 160 subjects of AP were included. Complete hemogram analysis was performed within 24 h after admission. C‑reactive protein, RDW, NLR, PLR and bedside index of severity in acute pancreatitis (BISAP) values were higher in severe AP than moderate AP group than mild AP group, while LMR values were decreased in the corresponding severe, moderate and mild AP groups (p < 0.001). The NLR performed best for prediction of ICU admission, organ failure, interventions and mortality with area under receiver operating curve (AUROC) were 0.943, 0.940, 0.902 and 0.910, respectively. CONCLUSION Hemogram based markers are simple, objective, dynamic and readily available. They can be considered in addition to conventional multifactorial scoring systems for prediction of outcome and prognosis of AP.
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Affiliation(s)
- Parmeshwar Ramesh Junare
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India.
| | - Prasanta Debnath
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Sujit Nair
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Sanjay Chandnani
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Suhas Udgirkar
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Ravi Thange
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Shubham Jain
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Rahul Deshmukh
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Partha Debnath
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Pravin Rathi
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Qais Contractor
- Department of Gastroenterology, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Room number 202, New RMO Building, Mumbai, India
| | - Akshay Deshpande
- Department of Surgery, Topiwala National Medical College and B.Y.L. Nair Charitable Hospital, Mumbai, India
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17
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Zhong Q, Peng J. Mean platelet volume/platelet count ratio predicts severe pneumonia of COVID-19. J Clin Lab Anal 2020; 35:e23607. [PMID: 33128497 PMCID: PMC7843293 DOI: 10.1002/jcla.23607] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/22/2020] [Accepted: 09/20/2020] [Indexed: 12/15/2022] Open
Abstract
Background Although platelet mean volume/platelet count ratio (MPR) is considered to be a crucial marker of inflammatory and infectious diseases, the relationship between MPR and novel coronavirus infectious disease 2019 (COVID‐19) remains unclear. Methods In this retrospective study, 85 patients with confirmed COVID‐19 were enrolled and divided into low and high MPR group. Data from repeated measures were compared by the generalized estimating equations. Cox regression analyses were performed to assess the impact of MPR on the incidence of severe pneumonia (SP), with inverse probability of treatment weighting (IPTW) used to reduce confounding bias. The primary outcome is the incidence of SP of COVID‐19. Results During follow‐up, 17 (20.0%) patients were developed to SP. Compared with mild patients, patients with SP developed showed a higher MPR level at baseline, day 1, day 2, and day 3 after admission (P = .005, P = .015, P = .009, and P = .032, respectively). Kaplan‐Meier method showed a higher incidence of SP in the high MPR group than the low MPR group (log‐rank test = 10.66, P = .001). After adjustment, high MPR was associated with an elevated incidence of SP (HR, 5.841, 95% CI, 1.566‐21.791, P = .009). The IPTW method also suggested that MPR was a significant factor related to the incidence of SP (HR, 8.337, 95% CI, 4.045‐17.182, P < .001). Conclusion High MPR level is an independent risk factor for severe pneumonia in patients with COVID‐19.
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Affiliation(s)
- Qingyang Zhong
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jie Peng
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
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18
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Fogagnolo A, Taccone FS, Benetto G, Franchi F, Scolletta S, Cotoia A, Kozhevnikova I, Volta CA, Spadaro S. Platelet morphological indices on Intensive Care Unit admission predict mortality in septic but not in non-septic patients. Minerva Anestesiol 2020; 87:184-192. [PMID: 32959630 DOI: 10.23736/s0375-9393.20.14528-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Thrombocytopenia is associated with worse outcomes in critically ill patients. The clinical relevance of other platelets indices is less studied. We investigated the ability of the platelets distribution width (PDW) and the mean platelet volume (MPV) to predict mortality in critically ill patients. We hypothesized that the prognostic values of PDW and MPV could be different in septic and non-septic patients. METHODS We prospectively analyzed patients with an expected ICU length of stay ≥48 hours. Repeated measurements of PDW and MPV were considered (on ICU admission and up to day 5 thereafter). The primary outcome was to investigate the ability of PDW and MPV to predict 90-day mortality in septic and non-septic patients. RESULTS We included in the study 234 patients of which 31% patients were septic. 90-day mortality was 39% in septic and 27% non-septic patients. PDW and MPV values on admission were 12.5±2.5% and 10.7±1.1 fL, respectively. The AUROC of PDW values on admission to predict 90-day mortality in septic patients was 0.813, being higher than those in non-septic patients (0.550, P<0.001). Similarly, the AUROC for MPV in septic patients was higher than non-septic patients (0.55, P<0.001). The combined analysis of platelets morphological indices and lactate improved the predictive accuracy (PDW and lactate AUROC=0.870; MPV and lactate AUROC=0.867). CONCLUSIONS Platelet morphological indices are independent predictor of 90-day mortality in septic patients but not in non-septic patients. A combined analysis of platelets morphological indices and lactate in septic patients resulted in improved prediction of mortality.
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Affiliation(s)
- Alberto Fogagnolo
- Unit of Anesthesia and Intensive Care, Department of Morphology, Surgery and Experimental Medicine, Sant'Anna University Hospital, University of Ferrara, Ferrara, Italy -
| | - Fabio S Taccone
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Giulia Benetto
- Unit of Anesthesia and Intensive Care, Department of Morphology, Surgery and Experimental Medicine, Sant'Anna University Hospital, University of Ferrara, Ferrara, Italy
| | - Federico Franchi
- Department of Anesthesia and Intensive Care, University of Siena, Siena, Italy
| | - Sabino Scolletta
- Department of Anesthesia and Intensive Care, University of Siena, Siena, Italy
| | - Antonella Cotoia
- Department of Anesthesiology and Intensive Care, University of Foggia, Foggia, Italy
| | - Iryna Kozhevnikova
- Unit of Anesthesia and Intensive Care, Department of Morphology, Surgery and Experimental Medicine, Sant'Anna University Hospital, University of Ferrara, Ferrara, Italy
| | - Carlo A Volta
- Unit of Anesthesia and Intensive Care, Department of Morphology, Surgery and Experimental Medicine, Sant'Anna University Hospital, University of Ferrara, Ferrara, Italy
| | - Savino Spadaro
- Unit of Anesthesia and Intensive Care, Department of Morphology, Surgery and Experimental Medicine, Sant'Anna University Hospital, University of Ferrara, Ferrara, Italy
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Sayed SZ, Mahmoud MM, Moness HM, Mousa SO. Admission platelet count and indices as predictors of outcome in children with severe Sepsis: a prospective hospital-based study. BMC Pediatr 2020; 20:387. [PMID: 32814554 PMCID: PMC7437045 DOI: 10.1186/s12887-020-02278-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 08/06/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Sepsis is still one of the main causes of infants and children mortality especially in developing, economically challenged countries with limited resources. Our objective in this study was to determine, the prognostic value of platelet count, mean platelet volume (MPV), platelet distribution width (PDW) and plateletcrit (PCT) in critically ill infants and children with severe sepsis, as they are readily available biomarkers, that can guide clinicians during managing of severe sepsis. METHODS Sixty children were included; they were diagnosed with severe sepsis according to the international pediatric sepsis consensus conference criteria. At admission to Pediatric intensive care unit, complete blood count with platelet count and parameters (MPV, PDW and PCT) and C-reactive protein (CRP) level were determined for all children. Also, assessment of the Pediatric Risk of Mortality (PRISM III) score was done to all. These children were followed up till discharge from hospital or death. Accordingly, they were grouped into: (1) Survivor group: included 41 children. (2) Non-survivor group: included 19 children. RESULTS Platelet count and PCT were significantly lower (p < 0.001) and MPV was significantly higher in non-survivor than survivors (p = 0.004). MPV/PLT, MPV/PCT, PDW/PLT, PDW/PCT ratios were found to be significantly higher in the non-survivors than survivor (p < 0.001 in all). PCT with sensitivity = 94.74%, was the most sensitive platelet parameter for prediction of death, while MPV/PCT was the most sensitive ratio (sensitivity = 94.7%). CONCLUSION Thrombocytopenia, platelet indices and their ratios, especially plateletcrit and MPV/PCT, are readily available, sensitive, prognostic markers, that can identify the severe sepsis patients with poorest outcome.
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Affiliation(s)
- Samira Z Sayed
- Pediatric Department, Children's University hospital, Faculty of Medicine, Minia University, El-Minya, Egypt
| | - Mohamed M Mahmoud
- Pediatric Department, Children's University hospital, Faculty of Medicine, Minia University, El-Minya, Egypt
| | - Hend M Moness
- Clinical Pathology Department, Children's University hospital, Faculty of Medicine, Minia University, El-Minya, Egypt
| | - Suzan O Mousa
- Pediatric Department, Children's University hospital, Faculty of Medicine, Minia University, El-Minya, Egypt.
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Platelet Indices as the Predictor of Antibiotics Response in Surgical Wound Infections Following Total Abdominal Hysterectomy. MEDICAL BULLETIN OF SISLI ETFAL HOSPITAL 2020; 53:132-136. [PMID: 32377071 PMCID: PMC7199835 DOI: 10.14744/semb.2019.46693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/01/2019] [Indexed: 12/04/2022]
Abstract
Objectives: The mean platelet volume (MPV) and the MPV-to-platelet (PLT) count ratio have long been reported as inflammation markers. In this study, we aimed to investigate the predictive value of the MPV and the MPV-to-PLT ratio on surgical wound healing in patients who underwent abdominal hysterectomy and experienced infections at the surgical site following surgery, despite adequate antimicrobial treatment. Methods: A total of 100 patients who encountered surgical wound infection (SWI) after abdominal hysterectomy were enrolled retrospectively. Samples for complete blood count were drawn the day before the operation. All patients received preoperative and postoperative antibiotic prophylaxis and proper antimicrobial treatment following the SWI development. Patients’ condition resolved after standard care and antimicrobial agents were classified as the standard care group. Others, in whom an improvement despite the standard care was not observed, underwent delayed primary closure and were classified as the delayed primary closure group. Results: The PLT count was decreased (319.5±66 103/µL vs. 392±121 103/µL; p<0.05), MPV(9.2±1.3 fL vs. 8.2±1.5 fL; p<0.05), and the MPV-to-PLT ratio (0.030±0.006 vs. 0.024±0.014; p<0.05) was increased in the delayed primary closure group compared to the standard care group. A receiver operating characteristic curve analysis was performed to determine the predictive value of these parameters on the response to standard care measures providing 8.28fL as a cut-off value for MPV (AUC=0.647, 72% sensitivity and 52% specificity) and 0.025 as a cut-off value for the MPV-to-PLT ratio (AUC=0.750, 75% sensitivity and 67% specificity) for predicting nonresponsiveness. Conclusion: An increased preoperative MPV and the MPV-to-PLT ratio may predict poor wound healing following total abdominal hysterectomy.
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Vélez-Paez JL, Velarde-Montero C, Irigoyen-Mogro E, Vélez-Páez P, Cifuentes-López P, Vélez JW, Albitres-Flores L, Barboza JJ. Volumen plaquetario medio como predictor de la mortalidad en pacientes con sepsis: revisión sistemática y metanálisis. INFECTIO 2020. [DOI: 10.22354/in.v24i3.861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introducción: El volumen medio plaquetario (VMP) es un biomarcador utilizado en el abordaje integral de la sepsis. Objetivo: Evaluar la asociación entre VMP con la mortalidad en pacientes con sepsis. Métodos: Se realizó una revisión sistemática de estudios observacionales en cinco bases de datos. Se analizó la mortalidad asociada con la sepsis; las intervenciones consideradas fueron VMP, APACHE y lactato sérico. Resultados: Respecto a la mortalidad asociada a sepsis, se encontró un valor significativo en la VMP a las 72 horas (200 fallecidos versus 654 no fallecidos; MD 0.83 IC95% 0.53-1.13, p= <0.0001, I2=72.9%); así como el valor de APACHE II (220 muertos frente a 604 no fallecidos; MD 0.81 IC95% 0.62-1.0, p= <0.0001, I2=32%). No se encontró significancia estadística para las demás variables clínicas. Conclusiones: El aumento de la VMP se asocia con mayor riesgo de mortalidad en pacientes con sepsis, especialmente después de 72 horas de evolución de las características clínicas.
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Go H, Ohto H, Nollet KE, Takano S, Kashiwabara N, Chishiki M, Maeda H, Imamura T, Kawasaki Y, Momoi N, Hosoya M. Using Platelet Parameters to Anticipate Morbidity and Mortality Among Preterm Neonates: A Retrospective Study. Front Pediatr 2020; 8:90. [PMID: 32232019 PMCID: PMC7082741 DOI: 10.3389/fped.2020.00090] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/21/2020] [Indexed: 02/01/2023] Open
Abstract
Background: Platelets participate in many physiological and pathological functions and some platelet parameters predict adult diseases. However, few studies report whether platelet parameters may reflect neonatal disease and mortality in a large cohort. Objective: We aimed to investigate whether platelet parameters could predict bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), intraventricular hemorrhage (IVH), and NICU mortality. Study Design and Methods: This retrospective cohort study examined records from 2006 to 2017 at the neonatal intensive care unit (NICU) of Fukushima Medical University Hospital. We retrospectively investigated platelet count, plateletcrit (PCT), mean platelet volume (MPV), and platelet distribution width (PDW) on the first day of life in preterm newborns born <32 weeks' gestation admitted to our NICU from 2006 to 2017. Receiver operating characteristic (ROC) and multiple regression analyses, along with Cox proportional hazard modeling, identified independent predictors of morbidities and mortality in preterm newborns. Results: Of 1,501 neonates admitted to our NICU, a total of 305 preterm newborns were included in this study. Gestational age, birth weight, and Apgar score were significantly lower in non-survivors than in survivors. Platelet count, PCT, PDW and PMI did not differ significantly between the two groups, whereas mean MPV in non-survivors was significantly higher than in survivors (10.5 fl vs. 10.0 fl, p = 0.001). Multivariate Cox hazard modeling showed that shorter GA [HR: 0.628, 95% CI: 0.464-0.840, p = 0.003], male sex [HR: 0.269, 95% CI: 0.113-0.640, p = 0.001], and MPV [HR: 1.469, 95% CI: 1.046-2.063, p = 0.026] independently predicted overall survival. Per receiver operating curve, an MPV threshold of 10.2 fl. MPV predicts prognosis in neonates with a sensitivity of 72.4% and a specificity of 58.6% (AUC = 0.685, 95% CI: 0.600-0.789, p = 0.001). Furthermore, multivariate analysis revealed that platelet parameters were not associated with BPD and NEC, whereas small for gestational age (SGA), Apgar score at 5 min, and low PCT were associated with intraventricular hemorrhage (IVH). Conclusion: This study demonstrates that low PCT predicts IVH, and MPV ≥ 10.2 fL correlates with mortality among infants born after <32 weeks' gestation.
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Affiliation(s)
- Hayato Go
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hitoshi Ohto
- Department of Advanced Cancer Immunotherapy, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kenneth E Nollet
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shunya Takano
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Nozomi Kashiwabara
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Mina Chishiki
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hajime Maeda
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Takashi Imamura
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yukihiko Kawasaki
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Nobuo Momoi
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Mitsuaki Hosoya
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
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Vardon-Bounes F, Gratacap MP, Groyer S, Ruiz S, Georges B, Seguin T, Garcia C, Payrastre B, Conil JM, Minville V. Kinetics of mean platelet volume predicts mortality in patients with septic shock. PLoS One 2019; 14:e0223553. [PMID: 31622365 PMCID: PMC6797099 DOI: 10.1371/journal.pone.0223553] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/05/2019] [Indexed: 12/16/2022] Open
Abstract
Introduction Thrombocytopenia is well recognized as a poor prognosis sign associated with increased mortality and prolonged Intensive Care Unit (ICU) stay, particularly in septic patients. Mean platelet volume (MPV) could represent a relevant predictive marker of mortality. Here we investigated whether MPV kinetics during the first 15 days after hospital admission has a potential prognostic value for clinical outcome in septic shock. Methods We performed a retrospectively analysis of a cohort of 301 septic patients admitted in ICU. Three-month mortality was the primary endpoint. The prognostic value of the covariates of interest was ascertained by multidimensional analysis. We proposed a classification and regression trees analysis to predict survival probability. Results MPV kinetics was significantly different between 90-day survivors and non-survivors when followed during 15 days (except on day 3). 10-day MPV >11.6fL was an independent predictive factor of 90-day mortality (Hazard Ratio (HR) 3.796, 95% Confidence Interval (CI) [1.96–7.35], p = 0.0001) in multivariate analysis. Base excess on day 4 <1.9mmol/L was also a predictive factor of mortality (HR 2.972, 95%CI [1.38–6.40], p = 0.0054. Conclusion MPV increase during the first 15 days after ICU admission in non-survivors was observed during septic shock and 10-day MPV >11.6fL was an independent predictive factor of 90-day mortality. This could be explained by the emergent response to acute platelet loss during septic shock, leading to megakaryocyte rupture to produce new but potentially immature platelets in the circulation. Therefore, continuous monitoring of MPV may be a useful parameter to stratify mortality risk in septic shock.
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Affiliation(s)
- Fanny Vardon-Bounes
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
- INSERM UMR 1048, Institut des Maladies Métaboliques et Cardiovasculaires, Equipe 11, Toulouse, France
- * E-mail:
| | - Marie-Pierre Gratacap
- INSERM UMR 1048, Institut des Maladies Métaboliques et Cardiovasculaires, Equipe 11, Toulouse, France
| | - Samuel Groyer
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
| | - Stéphanie Ruiz
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
- INSERM UMR 1048, Institut des Maladies Métaboliques et Cardiovasculaires, Equipe 11, Toulouse, France
| | - Bernard Georges
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
| | - Thierry Seguin
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
| | - Cédric Garcia
- Hematology laboratory, Toulouse University Hospital, Toulouse, France
| | - Bernard Payrastre
- INSERM UMR 1048, Institut des Maladies Métaboliques et Cardiovasculaires, Equipe 11, Toulouse, France
- Hematology laboratory, Toulouse University Hospital, Toulouse, France
| | - Jean-Marie Conil
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
| | - Vincent Minville
- Anesthesiology and Critical Care Unit, Toulouse University Hospital, Toulouse, France
- INSERM UMR 1048, Institut des Maladies Métaboliques et Cardiovasculaires, Equipe 11, Toulouse, France
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Fogagnolo A, Taccone FS, Campo G, Montanari G, Capatti B, Ferraro G, Erriquez A, Ragazzi R, Creteur J, Volta CA, Spadaro S. Impaired platelet reactivity in patients with septic shock: a proof-of-concept study. Platelets 2019; 31:652-660. [DOI: 10.1080/09537104.2019.1663807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Alberto Fogagnolo
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
| | - Fabio Silvio Taccone
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Gianluca Campo
- Cardiovascular Institute, Azienda Ospedaliera Universitaria di Ferrara, Cona (FE), Italy and Maria Cecilia Hospital, GVM Care & Research, Cotignola (RA), Italy
| | - Giacomo Montanari
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
| | - Beatrice Capatti
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
| | - Gioconda Ferraro
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
| | - Andrea Erriquez
- Cardiovascular Institute, Azienda Ospedaliera Universitaria di Ferrara, Cona (FE), Italy and Maria Cecilia Hospital, GVM Care & Research, Cotignola (RA), Italy
| | - Riccardo Ragazzi
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
| | - Jacques Creteur
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Carlo Alberto Volta
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
| | - Savino Spadaro
- Department of Morphology, Experimental Medicine and Surgery, Section of Anaesthesia and Intensive Care, Arcispedale Sant’ Anna, University of Ferrara, Ferrara, Italy
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Buttarello M, Mezzapelle G, Plebani M. Effect of preanalytical and analytical variables on the clinical utility of mean platelet volume. Clin Chem Lab Med 2019; 56:830-837. [PMID: 29194040 DOI: 10.1515/cclm-2017-0730] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/20/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND The study endpoint was to analyze the effect of preanalytical (time, temperature, anticoagulant) and analytical (imprecision, correlation between volume and platelet concentration) variables on mean platelet volume (MPV). A further aim was to calculate in an adult population the reference intervals using the Sysmex XE-5000 analyzer. A critical evaluation was also made of the clinical utility of these parameters. METHODS Analyses of the above values were performed in duplicate in 170 healthy adults of both sexes: (1) within 30 min from collection, and (2) after 4 h. To evaluate stability over time, the value of the platelet parameters of 20 subjects were determined, a re-analysis being performed for a period of up to 24 h on samples maintained at room temperature and 4°C using either K2-EDTA or Na-citrate as anticoagulants. RESULTS The stability over time of MPV closely depends on the anticoagulant used, storage temperature and time interval between venipuncture and analysis. An inverse, non-linear correlation between MPV and platelet count was also found. CONCLUSIONS In view of their effect on MPV and other related indices, the preanalytical and analytical variables make them, little more than experimental.
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Affiliation(s)
- Mauro Buttarello
- Department of Laboratory Medicine, University-Hospital, Padova, Italy
| | | | - Mario Plebani
- Department of Laboratory Medicine, University-Hospital, Padova, Italy
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26
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Lipinska A, Ledakowicz-Polak A, Krauza G, Przybylak K, Zielinska M. Complex calculation or quick glance? Mean platelet volume - new predictive marker for pulmonary embolism. Ther Clin Risk Manag 2018; 14:2221-2228. [PMID: 30519030 PMCID: PMC6233702 DOI: 10.2147/tcrm.s181381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Wells and Geneva scores are widely used in the assessment of pretest probability of pulmonary embolism (PE). OBJECTIVE The objective of this study was to examine the hypothesis that mean platelet volume (MPV) may better predict PE than the clinical prediction rules. METHODS A study was performed among patients with PE. Baseline characteristics and complete blood counts including MPV were prospectively recorded upon admission. To assess clinical probability in patients with PE risk, we used Wells and Geneva scores. RESULTS Data records of 136 patients (males: 44%) with median age of 66 years (interquartile range [IQR] 57.5-78.0) diagnosed with PE at the Intensive Cardiac Therapy Clinic in Lodz (Poland) were analyzed. Baseline characteristics indicate that patients suffered from arterial hypertension (65%), obesity (32%), and diabetes mellitus (24%). Furthermore, they reported active smoking (21%), prolonged immobilization (20%), major surgery (21%), pregnancy (4%), and oral contraceptives (9%). Patients presented with various symptoms. The MPV, plateletcrit, and D-dimer values on admission were respectively as follows: 10.71 (IQR 3.29-13.67), 0.2 (IQR 0.15-0.24), and 9.23 (IQR 8.5-9.85). The study revealed that Wells score correlated significantly with an elevated MPV value (P<0.05) per contra to Geneva score (P>0.05). According to our results, there is a lack of coherence between Wells and Geneva scores (P>0.05). Finally, we determined that the optimum MPV level cutoff point for PE on admission with reference to the original Wells score is 9.6 fL. CONCLUSION MPV may be considered useful as an adjunctive or independent predictive marker for PE used in lieu of clinical prediction rules.
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Affiliation(s)
- Anna Lipinska
- Intensive Cardiac Therapy Clinic, Department of Interventional Cardiology and Electrocardiology, Central Clinical Hospital, Lodz, Poland,
| | - Anna Ledakowicz-Polak
- Intensive Cardiac Therapy Clinic, Department of Interventional Cardiology and Electrocardiology, Central Clinical Hospital, Lodz, Poland,
| | - Grzegorz Krauza
- Intensive Cardiac Therapy Clinic, Department of Interventional Cardiology and Electrocardiology, Central Clinical Hospital, Lodz, Poland,
| | - Katarzyna Przybylak
- Intensive Cardiac Therapy Clinic, Department of Interventional Cardiology and Electrocardiology, Central Clinical Hospital, Lodz, Poland,
| | - Marzenna Zielinska
- Intensive Cardiac Therapy Clinic, Department of Interventional Cardiology and Electrocardiology, Central Clinical Hospital, Lodz, Poland,
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Neutrophil-to-Lymphocyte Ratio, Monocyte-to-Lymphocyte Ratio, Platelet-to-Lymphocyte Ratio, and Mean Platelet Volume-to-Platelet Count Ratio as Biomarkers in Critically Ill and Injured Patients: Which Ratio to Choose to Predict Outcome and Nature of Bacteremia? Mediators Inflamm 2018; 2018:3758068. [PMID: 30116146 PMCID: PMC6079471 DOI: 10.1155/2018/3758068] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 04/27/2018] [Accepted: 05/14/2018] [Indexed: 12/13/2022] Open
Abstract
Background Neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), and mean platelet volume-to-platelet count (MPV/PC) ratio are readily available parameters that might have discriminative power regarding outcome. The aim of our study was to assess prognostic value of these biomarkers regarding outcome in critically ill patients with secondary sepsis and/or trauma. Methods A total of 392 critically ill and injured patients, admitted to surgical ICU, were enrolled in a prospective observational study. Leukocyte and platelet counts were recorded upon fulfilling Sepsis-3 criteria and for traumatized Injury Severity Score > 25 points. Patients were divided into four subgroups: peritonitis, pancreatitis, trauma with sepsis, and trauma without sepsis. Results NLR and MPV/PC levels were significantly higher in nonsurvivors (AUC/ROC of 0.681 and 0.592, resp., in the peritonitis subgroup; 0.717 and 0.753, resp., in the pancreatitis subgroup); MLR and PLR did not differ significantly. There was no significant difference of investigated biomarkers between survivors and nonsurvivors in trauma patients with and without sepsis except for PLR in the trauma without sepsis subgroup (significantly higher in nonsurvivors, AUC/ROC of 0.719). Independent predictor of lethal outcome was NLR in the whole cohort and in the peritonitis subgroup as well as MPV in the pancreatitis subgroup. Also, there were statistically significant differences in MPV/PC, MLR, and PLR values regarding nature of bacteremia. In general, the lowest levels had been found in patients with Gram-positive blood cultures. Conclusions NLR and MPV were very good independent predictors of lethal outcome. For the first time, we demonstrate that nature of bacteremia influences MPV/PC, MLR, and PLR. In heterogeneous cohort subgroup, analysis is essential.
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Li J, Sheng X, Cheng D, Wang F, Jian G, Li Y, Xu T, Wang X, Fan Y, Wang N. Is the mean platelet volume a predictive marker of a high in-hospital mortality of acute cardiorenal syndrome patients receiving continuous renal replacement therapy? Medicine (Baltimore) 2018; 97:e11180. [PMID: 29924033 PMCID: PMC6023845 DOI: 10.1097/md.0000000000011180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
A high mean platelet volume (MPV) level has been demonstrated to predict poor clinical outcomes in patients with cardiovascular disease. However, the relationship between MPV and mortality in patients with acute cardiorenal syndrome (ACRS) is unknown. Therefore, we investigated the predictive value of MPV for in-hospital mortality of patients with ACRS who received continuous renal replacement therapy (CRRT) in this study.We retrospectively analyzed the demographics, etiology, severity of illness, prognosis, and risk factors of ACRS patients who underwent CRRT in our hospital from January 2009 to December 2014. Patients were classified into 2 groups based on the prognosis and timing of CRRT. The receiver operating characteristic curve was used to examine the performance of MPV in predicting in-hospital mortality. Baseline characteristics, clinical, and hematological parameters at CRRT initiation were compared between the 2 groups. Factors influencing in-hospital mortality were analyzed by univariate logistic regression analysis.The median age of patients was 74 years. Acute myocardial infarction was the most common cause of ACRS, followed by acute decompensated heart failure. The in-hospital mortality was 51.4%. Age, number of organ failure, APACHE II score, and MPV in the nonsurvivors were significantly higher than those in the survivors (P < .05). However, the cardiac function and mean arterial pressure were significantly lower in the nonsurvivors (P < .05). The prognosis of the early intervention group was better than the late-intervention group, but no significant difference was found (P > .05). The area under the curve (AUC) for in hospital mortality based on MPV was 0.735. Univariate analysis showed that age, cardiac function NYHA class, number of organ failure, APACHE II score, MAP, MPV, and use of vasopressors were associated with the prognosis of patients (P < .05).These findings suggest that the prognosis of patients with ACRS who received CRRT was poor, and MPV might be useful as a marker for predicting the in-hospital mortality of these patients.
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Affiliation(s)
| | | | | | | | | | - Yongguang Li
- Department of Cardiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital
| | | | - Xiaoxia Wang
- Department of Nephrology, Tong Ren Hospital, Shanghai Jiao Tong University, Shanghai, China
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Montero-Chacón LB, Padilla-Cuadra JI, Chiou SH, Torrealba-Acosta G. High-Density Lipoprotein, Mean Platelet Volume, and Uric Acid as Biomarkers for Outcomes in Patients With Sepsis: An Observational Study. J Intensive Care Med 2018; 35:636-642. [PMID: 29720052 DOI: 10.1177/0885066618772825] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND We conducted an observational study evaluating the association between uric acid, mean platelet volume (MPV), and high-density lipoprotein (HDL) with complications and outcomes of patients with sepsis in a critical care setting. METHODS We followed patients with a diagnosis of severe sepsis and septic shock for a maximum of 28 days. Main outcomes assessed included length of stay (LOS), the need for renal replacement therapy (RRT), assisted mechanical ventilation (AMV), and vasopressor support as well as in-unit mortality. RESULTS The overall average age of the 37 patients enrolled was 48.1 (19.8) years; among them, 37.8% were male. Abdominal related (43.2%) and pulmonary (29.7%) were the main sites of infection. The overall Acute Physiology and Chronic Health Evaluation 2 (APACHE-2) median score was 19 (9-24). Acute kidney injury (AKI) was observed in 46.9% of the sample. In all, 54.1% required vasopressor support, 54.1% AMV, and 35.1% RRT. Patients with bacteremia were significantly more likely to require vasopressor support and those with urinary tract infections were significantly younger. We found increasing ΔMPV levels, higher APACHE-2 scores, lower HDL values, and a reduced age to be associated with a longer LOS. Higher scores on the APACHE-2 scale and lower levels of HDL significantly associated with higher odds for developing AKI. The need for vasopressor support was significantly associated with higher values of 72-hour MPV and with higher levels of baseline uric acid and lower values of initial HCO3. Initial and 72-hour levels of MPV and higher scores in the APACHE-2 were all significantly correlated with the need for AMV. An increased probability of dying during follow-up was significantly correlated with increasing age. CONCLUSION We were able to establish significant associations between our candidate biomarkers and relevant outcomes for patients with sepsis. Our results support the use of these low-cost biomarkers in the assessment of prognosis of patients with sepsis.
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Affiliation(s)
| | - Juan Ignacio Padilla-Cuadra
- Neurocritical Care Unit, Department of Neurosciences, Hospital Rafael Ángel Calderón Guardia, Caja Costarricense de Seguro Social, San José, Costa Rica
| | - Sy Han Chiou
- Department of Mathematical Sciences, University of Texas at Dallas, Richardson, TX, USA
| | - Gabriel Torrealba-Acosta
- Division of Neurology, Department of Internal Medicine, Hospital Rafael Ángel Calderón Guardia, Caja Costarricense de Seguro Social, San José, Costa Rica.,Neurosciences Research Center, University of Costa Rica, San José, Costa Rica
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Li J, Li Y, Sheng X, Wang F, Cheng D, Jian G, Li Y, Feng L, Wang N. Combination of Mean Platelet Volume/Platelet Count Ratio and the APACHE II Score Better Predicts the Short-Term Outcome in Patients with Acute Kidney Injury Receiving Continuous Renal Replacement Therapy. Kidney Blood Press Res 2018; 43:479-489. [PMID: 29627837 DOI: 10.1159/000488694] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 03/23/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Both the Acute physiology and Chronic Health Evaluation (APACHE II) score and mean platelet volume/platelet count Ratio (MPR) can independently predict adverse outcomes in critically ill patients. This study was aimed to investigate whether the combination of them could have a better performance in predicting prognosis of patients with acute kidney injury (AKI) who received continuous renal replacement therapy (CRRT). METHODS Two hundred twenty-three patients with AKI who underwent CRRT between January 2009 and December 2014 in a Chinese university hospital were enrolled. They were divided into survivals group and non-survivals group based on the situation at discharge. Receiver Operating Characteristic (ROC) curve was used for MPR and APACHE II score, and to determine the optimal cut-off value of MPR for in-hospital mortality. Factors associated with mortality were identified by univariate and multivariate logistic regression analysis. RESULTS The mean age of the patients was 61.4 years, and the overall in-hospital mortality was 48.4%. Acute cardiorenal syndrome (ACRS) was the most common cause of AKI. The optimal cut-off value of MPR for mortality was 0.099 with an area under the ROC curve (AUC) of 0.636. The AUC increased to 0.851 with the addition of the APACHE II score. The mortality of patients with of MPR > 0.099 was 56.4%, which was significantly higher than that of the control group with of ≤ 0.099 (39.6%, P= 0.012). Logistic regression analysis showed that average number of organ failure (OR = 2.372), APACHE II score (OR = 1.187), age (OR = 1.028) and vasopressors administration (OR = 38.130) were significantly associated with poor prognosis. CONCLUSION Severity of illness was significantly associated with prognosis of patients with AKI. The combination of MPR and APACHE II score may be helpful in predicting the short-term outcome of AKI.
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Affiliation(s)
- Junhui Li
- Department of Nephrology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Yingchuan Li
- Department of Critical Care Medicine, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Xiaohua Sheng
- Department of Nephrology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Feng Wang
- Department of Nephrology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Dongsheng Cheng
- Department of Nephrology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Guihua Jian
- Department of Nephrology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Yongguang Li
- Department of Cardiology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - Liang Feng
- Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, China
| | - Niansong Wang
- Department of Nephrology, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
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Ye S, Zhang Y, Zhang C, Xu D. Are platelet volume indices related to mortality in hospitalized children on mechanical ventilation? J Int Med Res 2018; 46:1197-1208. [PMID: 29322854 PMCID: PMC5972253 DOI: 10.1177/0300060517737211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objectives To investigate platelet volume indices and in-hospital mortality in children on mechanical ventilation. Methods This retrospective study included children aged <16 years on mechanical ventilation, and compared parameters, measured on admission, between survivors and non-survivors. Dynamic platelet volume indices over the first 7 days were visualized. Independent risk factors of mortality were identified using multivariate logistic regression analysis. Results Out of 2 319 children aged 28 days–3 years, serum albumin (odds ratio [OR] 0.9, 95% confidence interval [CI] 0.85, 0.96), bilirubin (OR 1.01, 95% CI 1.0, 1.77), and lactic acid (OR 1.22, 95% CI 1.05, 1.38) levels were associated with mortality. Out of 2 415 children aged > 3 years, procalcitonin (OR 1.01, 95% CI 1.0, 1.01) and lactic acid (OR 1.22, 95% CI 1.09, 1.35) were associated with mortality. Platelet volume indices on admission were not independently associated with mortality in either group. Mean platelet volume (MPV) and platelet distribution width (PDW) showed different trends in non-survivors versus survivors over 1 week in both age groups. Conclusions Platelet volume indices may be associated with mortality in critically ill children receiving mechanical ventilation.
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Affiliation(s)
- Sheng Ye
- 1 Pediatric Intensive Care Unit, 37066 The Children's Hospital, Zhejiang University School of Medicine , Hangzhou, China
| | - Yanyi Zhang
- 2 Psychological Department, 37066 The Children's Hospital, Zhejiang University School of Medicine , Hangzhou, China
| | - Chenmei Zhang
- 1 Pediatric Intensive Care Unit, 37066 The Children's Hospital, Zhejiang University School of Medicine , Hangzhou, China
| | - Dan Xu
- 1 Pediatric Intensive Care Unit, 37066 The Children's Hospital, Zhejiang University School of Medicine , Hangzhou, China
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Gorelik O, Tzur I, Barchel D, Almoznino-Sarafian D, Swarka M, Beberashvili I, Feldman L, Cohen N, Izhakian S. A rise in mean platelet volume during hospitalization for community-acquired pneumonia predicts poor prognosis: a retrospective observational cohort study. BMC Pulm Med 2017; 17:137. [PMID: 29084523 PMCID: PMC5663044 DOI: 10.1186/s12890-017-0483-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 10/26/2017] [Indexed: 12/27/2022] Open
Abstract
Background Clinical characteristics and the prognostic significance of changes in mean platelet volume (MPV) during hospitalization for community-acquired pneumonia (CAP) have not been investigated. Methods Among 976 adults hospitalized for CAP, clinical characteristics, in-hospital outcomes (transfer to the intensive care unit, treatment with mechanical ventilation, prolonged hospital stay and death), and all-cause mortality following discharge, were compared according to ΔMPV (MPV on discharge minus MPV on admission): groups A (no rising MPV, ΔMPV < 0.6 fL) and B (rising MPV, ΔMPV ≥ 0.6 fL). Results Groups A and B comprised 83.8% and 16.2% of patients, respectively. Patients with a rise in MPV were more likely to be older, and to present with renal dysfunction, cerebrovascular disorder and severe pneumonia than were patients with no rise in MPV. On discharge, lower values of platelets and higher levels of neutrophils were observed in group B. Rising MPV strongly predicted a need for mechanical ventilation and in-hospital death (the respective relative risks: 2.62 and 6.79; 95% confidence intervals: 1.54–4.45 and 3.48–13.20). The respective 90-day, 3-year and total (median follow-up of 54 months) mortality rates were significantly higher in group B (29.1%, 43.0% and 50.0%) than group A (7.3%, 24.2% and 32.6%), p < 0.001 for all comparisons. A rise in MPV was a powerful predictor of all-cause mortality (relative risk 1.26 and 95% confidence interval 1.11–1.43). Conclusions Rising MPV during hospitalization for CAP is associated with a more severe clinical profile than no rise in MPV. A rise in MPV strongly predicts in-hospital and long-term mortality.
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Affiliation(s)
- Oleg Gorelik
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel. .,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
| | - Irma Tzur
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Dana Barchel
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Dorit Almoznino-Sarafian
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Muhareb Swarka
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Ilia Beberashvili
- Nephrology Division, Assaf Harofeh Medical Center, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Leonid Feldman
- Nephrology Division, Assaf Harofeh Medical Center, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Natan Cohen
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Shimon Izhakian
- Department of Internal Medicine "F", Assaf Harofeh Medical Center, 70300, Zerifin, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
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Orfanu AE, Popescu C, Leuștean A, Negru AR, Tilişcan C, Aramă V, Aramă ȘS. The Importance of Haemogram Parameters in the Diagnosis and Prognosis of Septic Patients. ACTA ACUST UNITED AC 2017; 3:105-110. [PMID: 29967880 PMCID: PMC5769899 DOI: 10.1515/jccm-2017-0019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/11/2017] [Indexed: 01/15/2023]
Abstract
Sepsis represents a severe pathology that requires both rapid and precise positive and differential diagnosis to identify patients who need immediate antimicrobial therapy. Monitoring septic patients’ outcome leads to prolonged hospitalisation and antibacterial therapy, often accompanied by substantial side effects, complications and a high mortality risk. Septic patients present with complex pathophysiological and immunological disorders and with a predominance of pro-inflammatory or anti-inflammatory mediators which are heterogeneous with respect to the infectious focus, the aetiology of sepsis or patients’ immune status or comorbidities. Previous studies performed have analysed inflammatory biomarkers, but a test or combinations of tests that can quickly and precisely establish a diagnosis or prognosis of septic patients has yet to be discovered. Recent research has focused on re-analysing older accessible parameters found in the complete blood count to determine the sensitivity, specificity, positive and negative predictive values for the diagnosis and prognosis of sepsis. The neutrophil/lymphocyte count ratio (NLCR), mean platelet volume (MPV) and red blood cells distribution width (RDW) are haemogram indicators which have been evaluated and which are of proven use in septic patients’ management.
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Affiliation(s)
- Alina Elena Orfanu
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Dionisie Lupu Street, no 37, 020021, Bucharest, Romania
| | - Cristina Popescu
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Dionisie Lupu Street, no 37, 020021, Bucharest, Romania
| | - Anca Leuștean
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania
| | - Anca Ruxandra Negru
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Dionisie Lupu Street, no 37, 020021, Bucharest, Romania
| | - Cătălin Tilişcan
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Dionisie Lupu Street, no 37, 020021, Bucharest, Romania
| | - Victoria Aramă
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Dionisie Lupu Street, no 37, 020021, Bucharest, Romania
| | - Ștefan Sorin Aramă
- National Institute for Infectious Diseases "Prof. Dr Matei Balș", Dr Calistrat Grozovici Street, no 1, 021105, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Dionisie Lupu Street, no 37, 020021, Bucharest, Romania
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Llewellyn EA, Todd JM, Sharkey LC, Rendahl A. A pilot study evaluating the prognostic utility of platelet indices in dogs with septic peritonitis. J Vet Emerg Crit Care (San Antonio) 2017; 27:569-578. [PMID: 28749085 DOI: 10.1111/vec.12628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 09/22/2015] [Accepted: 11/08/2015] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To characterize platelet indices at time of diagnosis of septic peritonitis in dogs and to assess the relationship between platelet parameter data and survival to discharge in dogs treated surgically. DESIGN Retrospective, observational, descriptive pilot study from 2009 to 2014. SETTING University teaching hospital. ANIMALS Forty-eight dogs diagnosed with septic peritonitis were included in this study. Thirty-six dogs had surgical source control. Blood samples from 46 healthy control dogs were used for reference interval (RI) generation. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Dogs with septic peritonitis had significantly increased mean values for mean platelet volume (MPV), plateletcrit (PCT), and platelet distribution width (PDW) with increased proportions of dogs having values above the RI compared to healthy dogs. A significantly increased proportion of dogs with septic peritonitis had platelet counts above (12.5%) and below (8.3%) the RI, with no significant difference in mean platelet count compared to healthy dogs. No significant differences in the mean platelet count, MPV, PCT, or PDW were found between survivors and nonsurvivors in dogs with surgical source control; however, dogs with MPV values above the RI had significantly increased mortality compared to dogs within the RI (P = 0.025). Values outside the RI for other platelet parameters were not associated with significant differences in mortality. CONCLUSIONS Dogs with septic peritonitis have increased frequency of thrombocytosis and thrombocytopenia with increased MPV, PCT, and PDW. An increased MPV may be a useful indicator of increased risk of mortality in dogs treated surgically.
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Affiliation(s)
- Efa A Llewellyn
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, MN, 55108
| | - Jeffrey M Todd
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, MN, 55108
| | - Leslie C Sharkey
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, MN, 55108
| | - Aaron Rendahl
- School of Statistics, University of Minnesota, St Paul, MN, 55108
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Li Y, Zhao Y, Feng L, Guo R. Comparison of the prognostic values of inflammation markers in patients with acute pancreatitis: a retrospective cohort study. BMJ Open 2017; 7:e013206. [PMID: 28348184 PMCID: PMC5372142 DOI: 10.1136/bmjopen-2016-013206] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Inflammation-based prognostic markers (neutrophil-lymphocyte ratio (NLR), prognostic nutritional index (PNI), red cell distribution width (RDW) and lymphocyte-monocyte ratio (LMR)) are associated with overall survival in some diseases. This study assessed their prognostic value in mortality and severity in acute pancreatitis (AP). DESIGN A retrospective cohort study. SETTING Patients with AP were recruited from the emergency department at our hospital. PARTICIPANTS A total of 359 patients with AP (31 non-survivors) were enrolled. PRIMARY AND SECONDARY OUTCOME MEASURES Mortality and severity of AP were the primary and secondary outcome measures, respectively. Biochemistry and haematology results of the first test after admission were collected. Independent relationships between severe AP (SAP) and markers were assessed using multivariate logistic regression models. Mortality prediction ability was evaluated using receiver operating characteristic (ROC) curves. Overall survival was evaluated using the Kaplan-Meier method, with differences compared using the log-rank test. Independent relationships between mortality and each predictor were estimated using the Cox proportional hazard models. RESULTS Compared with survivors of AP, non-survivors had higher RDW (p<0.001), higher NLR (p<0.001), lower LMR (p<0.001) and lower PNI (p<0.001) at baseline. C reactive protein (CRP; OR=8.251, p<0.001), RDW (OR=2.533, p=0.003) and PNI (OR=7.753, p<0.001) were independently associated with the occurrence of SAP. For predicting mortality, NLR had the largest area under the ROC curve (0.804, p<0.001), with a 16.64 cut-off value, 82.4% sensitivity and 75.6% specificity. RDW was a reliable marker for excluding death owing to its lowest negative likelihood ratio (0.11). NLR (HR=4.726, p=0.004), CRP (HR=3.503, p=0.003), RDW (HR=3.139, p=0.013) and PNI (HR=2.641, p=0.011) were independently associated with mortality of AP. CONCLUSIONS NLR was the most powerful marker of overall survival in this patient series.
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Affiliation(s)
- Yuanyuan Li
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ying Zhao
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Limin Feng
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Renyong Guo
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Peng F, Li Z, Yi C, Guo Q, Yang R, Long H, Huang F, Yu X, Yang X. Platelet index levels and cardiovascular mortality in incident peritoneal dialysis patients: a cohort study. Platelets 2016; 28:576-584. [PMID: 27885913 DOI: 10.1080/09537104.2016.1246716] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Prior studies have shown that the levels of some platelet (PLT) indices were associated with mortality in patients undergoing hemodialysis. We aimed to investigate whether the changes in PLT indices associated with mortality in patients on peritoneal dialysis (PD). A single-center, retrospective observational cohort study was conducted in incident PD patients from 1 January 2006 to 31 December 2012, and followed up until 31 December 2014. Cox proportional hazard models were used to examine the relationships between the levels of PLT indices including PLT, plateletcrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW), platelet large cell ratio (PLCR), and mortality. Of 1324 patients, 276 (20.8%) died during follow-up (median, 37; IQR, 3-107.4 months), among which 134 were due to cardiovascular diseases (CVD). The highest tertile of PLT levels at baseline was associated with increased risk for cardiovascular mortality after adjustment for demographic, clinical characteristics, and laboratory variables (hazard ratio [HR]:1.93; 95% confidence interval [CI]: 1.16-3.20). The similar treads were also observed in the middle and the highest tertile of the PCT level (HR: 1.68, 95%CI: 1.00-2.81 and HR: 1.89, 95%CI: 1.14-3.14, respectively). In addition, the highest tertile of PCT was associated with increased all-cause mortality (HR: 1.41, 95%CI: 1.01-1.96). However, none of the associations in MPV, PDW, and PLCR analyses reached statistical significance (HR: 0.71, 95%CI: 0.43-1.16; HR: 0.72, 95%CI: 0.45-1.18 and HR: 0.74, 95%CI: 0.46-1.19, respectively). These results suggest that higher PLT and PCT may be associated with higher risk for cardiovascular mortality in incident PD patients. Additional studies are needed to investigate whether correction of these two PLT indices reduces the risk.
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Affiliation(s)
- Fenfen Peng
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China.,b Department of Nephrology , Zhujiang Hospital of Southern Medical University , Guangzhou , 510280 , China.,c Key Laboratory of Nephrology, Ministry of Health , Guangzhou , 510080 , China
| | - Zhijian Li
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China.,c Key Laboratory of Nephrology, Ministry of Health , Guangzhou , 510080 , China
| | - Chunyan Yi
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China
| | - Qunying Guo
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China.,c Key Laboratory of Nephrology, Ministry of Health , Guangzhou , 510080 , China
| | - Rui Yang
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China
| | - Haibo Long
- b Department of Nephrology , Zhujiang Hospital of Southern Medical University , Guangzhou , 510280 , China
| | - Fengxian Huang
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China.,c Key Laboratory of Nephrology, Ministry of Health , Guangzhou , 510080 , China
| | - Xueqing Yu
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China.,c Key Laboratory of Nephrology, Ministry of Health , Guangzhou , 510080 , China
| | - Xiao Yang
- a Department of Nephrology , The First Affiliated Hospital, Sun Yat-sen University , Guangzhou , 510080 , China.,c Key Laboratory of Nephrology, Ministry of Health , Guangzhou , 510080 , China
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Ates S, Oksuz H, Dogu B, Bozkus F, Ucmak H, Yanıt F. Can mean platelet volume and mean platelet volume/platelet count ratio be used as a diagnostic marker for sepsis and systemic inflammatory response syndrome? Saudi Med J 2016; 36:1186-90. [PMID: 26446329 PMCID: PMC4621724 DOI: 10.15537/smj.2015.10.10718] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objectives: To determine whether the mean platelet volume (MPV) and MPV/platelet (PLT) values can be used in the study of sepsis and systemic inflammatory response syndrome (SIRS). Methods: In this retrospective case-controlled study, 69 sepsis, 69 SIRS patients, and 72 control group who were treated in the years 2012-2013 were reviewed, and both the MPV and MPV/PLT rates were evaluated in all groups at Kahramanmaras Sutcu Imam University Intensive Care Unit, Kahramanmaras, Turkey. Results: Statistically significant difference was found between sepsis, SIRS, and control groups when comparing the MPV and MPV/PLT ratio (p<0.05), and no significant difference was found between sepsis and SIRS groups in terms of MPV and MPV/PLT ratio (p>0.05). Mean platelet volume values for sepsis and control groups was 10.07/8.731 femtoliter (fL) (p=0.000), and 9.45/8.731 fL (p=0.000) for SIRS and control groups. In the group of sepsis patients, the MPV was found to be at cut-off 8.915, sensitivity 71%, and specificity 63.9%. In the group of patients with SIRS, MPV was found to be at cut-off 8.85, sensitivity 69.6%, and specificity 62.5%. For the MPV/PLT values, the specificity and sensitivity were found to be insignificant. Conclusion: This study shows that although there was no significant reduction in the PLT values between the sepsis and SIRS patients, the MPV and MPV/PLT ratio values were found to have significant differences. However, the specificity and sensitivity of the values were not reliable standard to be used as a test.
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Affiliation(s)
- Selma Ates
- Faculty of Medicine, Department of Infectious Diseases, Avsar Campus, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey. E-mail.
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The Role of Mean Platelet Volume as a Predictor of Mortality in Critically Ill Patients: A Systematic Review and Meta-Analysis. Crit Care Res Pract 2016; 2016:4370834. [PMID: 26966574 PMCID: PMC4757676 DOI: 10.1155/2016/4370834] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 01/11/2016] [Indexed: 12/29/2022] Open
Abstract
Background. An increase in the mean platelet volume (MPV) has been proposed as a novel prognostic indicator in critically ill patients. Objective. We conducted a systematic review and meta-analysis to determine whether there is an association between MPV and mortality in critically ill patients. Methods. We did electronic search in Medline, Scopus, and Embase up to November 2015. Results. Eleven observational studies, involving 3724 patients, were included. The values of initial MPV in nonsurvivors and survivors were not different, with the mean difference with 95% confident interval (95% CI) being 0.17 (95% CI: −0.04, 0.38; p = 0.112). However, after small sample studies were excluded in sensitivity analysis, the pooling mean difference of MPV was 0.32 (95% CI: 0.04, 0.60; p = 0.03). In addition, the MPV was observed to be significantly higher in nonsurvivor groups after the third day of admission. On the subgroup analysis, although patient types (sepsis or mixed ICU) and study type (prospective or retrospective study) did not show any significant difference between groups, the difference of MPV was significantly difference on the unit which had mortality up to 30%. Conclusions. Initial values of MPV might not be used as a prognostic marker of mortality in critically ill patients. Subsequent values of MPV after the 3rd day and the lower mortality rate unit might be useful. However, the heterogeneity between studies is high.
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Kırış T, Yazici S, Günaydin ZY, Akyüz Ş, Güzelburç Ö, Atmaca H, Ertürk M, Nazli C, Dogan A. The Prognostic Impact of In-Hospital Change in Mean Platelet Volume in Patients With Non-ST-Segment Elevation Myocardial Infarction. Angiology 2016; 67:690-6. [PMID: 26787684 DOI: 10.1177/0003319715627734] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
It is unclear whether changes in mean platelet volume (MPV) are associated with total mortality in acute coronary syndromes. We investigated whether the change in MPV predicts total mortality in patients with non-ST-segment elevation myocardial infarction (NSTEMI). We retrospectively analyzed 419 consecutive patients (19 patients were excluded). The remaining patients were categorized as survivors (n = 351) or nonsurvivors (n = 49). Measurements of MPV were performed at admission and after 24 hours. The difference between the 2 measurements was considered as the MPV change (ΔMPV). The end point of the study was total mortality at 1-year follow-up. During the follow-up, there were 49 deaths (12.2%). Admission MPV was comparable in the 2 groups. However, both MPV (9.6 ± 1.4 fL vs 9.2 ± 1.0 fL, P = .044) and ΔMPV (0.40 [0.10-0.70] fL vs 0.70 [0.40-1.20] fL, P < .001) at the first 24 hours were higher in nonsurvivors than survivors. In multivariate analysis, ΔMPV was an independent predictor of total mortality (odds ratio: 1.84, 95% confidence interval: 1.28-2.65, P = .001). An early increase in MPV after admission was independently associated with total mortality in patients with NSTEMI. Such patients may need more effective antiplatelet therapy.
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Affiliation(s)
- Tuncay Kırış
- Department of Cardiology, Izmir Katip Celebi University, Ataturk Training and Research Hospital, Izmir, Turkey
| | - Selcuk Yazici
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center Training Research Hospital, Istanbul, Turkey
| | | | - Şükrü Akyüz
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center Training Research Hospital, Istanbul, Turkey
| | - Özge Güzelburç
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center Training Research Hospital, Istanbul, Turkey
| | - Hüsnü Atmaca
- Department of Cardiology, Ordu State Hospital, Ordu, Turkey
| | - Mehmet Ertürk
- Department of Cardiology, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey
| | - Cem Nazli
- Department of Cardiology, Medical School, Izmir Katip Celebi University, Ataturk Training and Research Hospital, Izmir, Turkey
| | - Abdullah Dogan
- Department of Cardiology, Medical School, Izmir Katip Celebi University, Ataturk Training and Research Hospital, Izmir, Turkey
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Laine O, Joutsi-Korhonen L, Lassila R, Koski T, Huhtala H, Vaheri A, Mäkelä S, Mustonen J. Hantavirus infection-induced thrombocytopenia triggers increased production but associates with impaired aggregation of platelets except for collagen. Thromb Res 2015; 136:1126-32. [PMID: 26462407 DOI: 10.1016/j.thromres.2015.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 09/20/2015] [Accepted: 10/04/2015] [Indexed: 01/20/2023]
Abstract
INTRODUCTION We evaluated the mechanisms of thrombocytopenia encountered in hantavirus disease by studying platelet production together with platelet aggregation and deposition to collagen surface. PATIENTS AND METHODS The study group consisted of 31 prospectively recruited, consecutive, hospitalized patients having acute Puumala hantavirus infection. Blood samples were collected acutely and at the control visit and subjected to analysis in Sysmex® XE-5000 to capture mean platelet volume (MPV) and immature platelet fraction (IPF%). Platelet aggregation under low shear rate conditions was assessed with impedance aggregometry Multiplate®, whereas platelet function analyzer (PFA)-100® was applied under blood flow of high shear forces. RESULTS IPF% was 3.1-fold higher acutely compared with the control (median 7.4%, range 2.0-23.8% vs. median 2.4%, range 1.4%-5.2%, p<0.001) tightly associating with the low platelet count (r=-0.76, p<0.001). Accordingly, acute MPV was high (median 11.4f l, range 9.4-13.1 fl vs. median 10.5 fl, range 9.0-12.0 fl, p=0.003). Acute platelet aggregation in Multiplate® was decreased to all agonists compared with the later control (p<0.05 for all agonists). Aggregation capacity associated with thrombocytopenia (for all agonists r ≥ 0.81, p<0.001), but impaired aggregation occurred also among patients with a nearly normal platelet count. Triggered by collagen, 20% of values were below reference range, while 73% of responses were low with thrombin receptor activating peptide. Significantly, under high shear platelet deposition to collagen surface was normal despite thrombocytopenia. CONCLUSIONS During acute hantavirus disease, platelet aggregation is impaired especially when induced with thrombin. Platelet adhesive mechanisms on collagen are intact despite thrombocytopenia while thrombopoiesis is active.
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Affiliation(s)
- Outi Laine
- Department of Internal Medicine, Tampere University Hospital, PO Box 2000, 33521 Tampere, Finland; School of Medicine, University of Tampere, 33014 Tampere, Finland.
| | - Lotta Joutsi-Korhonen
- Coagulation Disorders Unit, Clinical Chemistry, HUSLAB Laboratory Services, Helsinki University Hospital, PO Box 372, 00029 Helsinki, Finland.
| | - Riitta Lassila
- Coagulation Disorders Unit, Department of Hematology, Comprehensive Cancer Center, Helsinki University, and Helsinki University Hospital, PO Box 372, 00029 Helsinki, Finland.
| | - Tomi Koski
- Fimlab Medical Laboratories, Tampere University Hospital, PO Box 66, 33101 Tampere, Finland.
| | - Heini Huhtala
- School of Health Sciences, University of Tampere, 33014 Tampere, Finland.
| | - Antti Vaheri
- Department of Virology, Faculty of Medicine, University of Helsinki, PO Box 21, 00014 Helsinki, Finland.
| | - Satu Mäkelä
- Department of Internal Medicine, Tampere University Hospital, PO Box 2000, 33521 Tampere, Finland.
| | - Jukka Mustonen
- Department of Internal Medicine, Tampere University Hospital, PO Box 2000, 33521 Tampere, Finland; School of Medicine, University of Tampere, 33014 Tampere, Finland.
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41
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Lippi G, Franchini M. Platelets and immunity: the interplay of mean platelet volume in health and disease. Expert Rev Hematol 2015; 8:555-7. [DOI: 10.1586/17474086.2015.1069703] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Gao JB. Can mean platelet volume predict the prognosis of patients with community-acquired pneumonia? Am J Emerg Med 2015; 33:727. [DOI: 10.1016/j.ajem.2015.02.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 02/13/2015] [Indexed: 11/29/2022] Open
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