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Martín-González C, Ribot-Hernández I, Fernández-Rodríguez CM, Pérez-Hernández O, González-Navarrete L, Godoy-Reyes AM, Rodríguez-Gaspar M, Martínez-Riera A, González-Reimers E. Mean platelet volume and mortality in patients with alcohol use disorder. Dig Liver Dis 2023; 55:1236-1241. [PMID: 37277289 DOI: 10.1016/j.dld.2023.05.022] [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: 04/07/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/07/2023]
Abstract
Several recent studies have pointed out the relationship of platelet size with increased mortality or adverse clinical course. Most studies show that increased mean platelet volume (MPV) may be associated with a deleterious outcome in different settings such as sepsis or neoplasia, whereas other researchers have found the opposite. In inflammatory conditions there is an altered secretion of several cytokines, some of them exerting a marked influence on platelet biogenesis and/or on platelet activation and aggregation. Alcohol use disorder is a chronic situation characterized by a protracted low-grade inflammation. In this study we analyze the relationship between proinflammatory cytokines and MPV and their relationships with mortality in patients with alcohol abuse. We determined serum levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-8 and routine laboratory variables among 184 patients with alcohol use disorder admitted to our hospital and followed-up for a median of 42 months. We found that MPV was inversely related to TNF-α (ρ=-0.34), and directly to IL-8 (ρ=0.32, p<0.001 in both cases) and to IL-6 (ρ=0.15; p = 0.046). Reduced MPV was related both with short-term (<6 months) and long-term mortality. Conclusion: These results suggest that inflammatory cytokines are strongly related to MPV. A low MPV is associated with a poor prognosis among patients with alcohol use disorder.
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Affiliation(s)
- Candelaria Martín-González
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain.
| | - Iván Ribot-Hernández
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Camino M Fernández-Rodríguez
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Onán Pérez-Hernández
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Lourdes González-Navarrete
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Ana M Godoy-Reyes
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Melchor Rodríguez-Gaspar
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Antonio Martínez-Riera
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
| | - Emilio González-Reimers
- Servicio de Medicina Interna, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Canary Islands, Spain
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Wrotek A, Wrotek O, Jackowska T. Platelet Abnormalities in Children with Laboratory-Confirmed Influenza. Diagnostics (Basel) 2023; 13:diagnostics13040634. [PMID: 36832122 PMCID: PMC9954849 DOI: 10.3390/diagnostics13040634] [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] [Received: 12/31/2022] [Revised: 01/23/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND The role of platelets in the immune response against influenza has been raised, and a diagnostic or prognostic value of platelet parameter abnormalities, including platelet count (PLT), or mean platelet volume (MPV), has been suggested. The study aimed to analyze the prognostic value of platelet parameters in children hospitalized due to laboratory-confirmed influenza. METHODS We retrospectively verified the platelet parameters (PLT, MPV, MPV/PLT, and PLT/lymphocyte ratio regarding the influenza complications (acute otitis media, pneumonia, and lower respiratory tract infection-LRTI), and the clinical course (antibiotic treatment, tertiary care transfer, and death). RESULTS An abnormal PLT was observed in 84 out of 489 laboratory-confirmed cases (17.2%, 44 thrombocytopaenia cases, and 40 thrombocytoses). Patients' age correlated negatively with PLT (rho = -0.46) and positively with MPV/PLT (rho = 0.44), while MPV was not age-dependent. The abnormal PLT correlated with increased odds of complications (OR = 1.67), including LRTI (OR = 1.89). Thrombocytosis was related to increased odds of LRTI (OR = 3.64), and radiologically/ultrasound-confirmed pneumonia (OR = 2.15), mostly in children aged under 1 year (OR = 4.22 and OR = 3.79, respectively). Thrombocytopaenia was related to antibiotic use (OR = 2.41) and longer hospital stays (OR = 3.03). A lowered MPV predicted a tertiary care transfer (AUC = 0.77), while MPV/PLT was the most versatile parameter in predicting LRTI (AUC = 0.7 in <1 yo), pneumonia (AUC = 0.68 in <1 yo), and antibiotic treatment (AUC = 0.66 in 1-2 yo and AUC = 0.6 in 2-5 yo). CONCLUSIONS Platelet parameters, including PLT count abnormalities and MPV/PLT ratio, are related to the increased odds of complications and a more severe disease course, and may add important data in assessing pediatric influenza patients, but should be interpreted cautiously due to age-related specificities.
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Affiliation(s)
- August Wrotek
- Department of Pediatrics, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
- Department of Pediatrics, Bielanski Hospital, Cegłowska 80, 01-809 Warsaw, Poland
- Correspondence:
| | - Oliwia Wrotek
- Student Research Group, Bielanski Hospital, Cegłowska 80, 01-809 Warsaw, Poland
| | - Teresa Jackowska
- Department of Pediatrics, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
- Department of Pediatrics, Bielanski Hospital, Cegłowska 80, 01-809 Warsaw, Poland
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Işler Y, Kaya H. Relationship of platelet counts, platelet volumes, and Curb-65 scores in the prognosis of COVID-19 patients. Am J Emerg Med 2022; 51:257-261. [PMID: 34781151 PMCID: PMC8577220 DOI: 10.1016/j.ajem.2021.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES This study investigated the relationship between 28-day mortality in patients with COVID-19 pneumonia and the CURB-65 score, platelet count (PLT), mean platelet volume (MPV), and MPV/PLT ratio (MPR). METHODS A total of 247 patients with COVID-19 pneumonia who presented to the emergency department between March 15, 2020 and May 15, 2020 were retrospectively analyzed. The age, gender, clinical presentation, history of chronic disease, thoracic computed tomography findings, MPV, PLT, MPR, CURB-65 scores, and 28-day mortality of patients were recorded. RESULTS The patients had a mean age of 51 years (IQR: 39-63 years) and 55.5% were females. The most common symptom was cough (30.4% of patients). The most common comorbidity was hypertension (13.4%), 49.8% of the cases showed intermediate involvement, and 7.7% of patients died within the first 28 days. The mean MPV was 9.71 ± 1.15, the mean PLT was 226.68 ± 83.82, and the mean MPR was 0.056 ± 0.12. There were significant correlations of 28-day mortality with the CURB-65 score, MPV, and MPR levels (p = 0.000, p = 0.034, and p = 0.034, respectively). No significant correlation was found between the PLT count and 28-day mortality (p = 0.105). CONCLUSIONS In addition to the CURB-65 score, MPV and MPR values can be used to predict 28-day mortality in patients with COVID-19 pneumonia.
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Affiliation(s)
- Yeşim Işler
- University of Health Sciences Turkey, Bursa Yuksek Ihtisas Training and Research Hospital, Department of Emergency Medicine, Bursa, Turkey.
| | - Halil Kaya
- University of Health Sciences Turkey, Bursa Yuksek Ihtisas Training and Research Hospital, Department of Emergency Medicine, Bursa, Turkey
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Adams K, Tenforde MW, Chodisetty S, Lee B, Chow EJ, Self WH, Patel MM. A literature review of severity scores for adults with influenza or community-acquired pneumonia - implications for influenza vaccines and therapeutics. Hum Vaccin Immunother 2021; 17:5460-5474. [PMID: 34757894 PMCID: PMC8903905 DOI: 10.1080/21645515.2021.1990649] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/02/2021] [Indexed: 12/11/2022] Open
Abstract
Influenza vaccination and antiviral therapeutics may attenuate disease, decreasing severity of illness in vaccinated and treated persons. Standardized assessment tools, definitions of disease severity, and clinical endpoints would support characterizing the attenuating effects of influenza vaccines and antivirals. We review potential clinical parameters and endpoints that may be useful for ordinal scales evaluating attenuating effects of influenza vaccines and antivirals in hospital-based studies. In studies of influenza and community-acquired pneumonia, common physiologic parameters that predicted outcomes such as mortality, ICU admission, complications, and duration of stay included vital signs (hypotension, tachypnea, fever, hypoxia), laboratory results (blood urea nitrogen, platelets, serum sodium), and radiographic findings of infiltrates or effusions. Ordinal scales based on these parameters may be useful endpoints for evaluating attenuating effects of influenza vaccines and therapeutics. Factors such as clinical and policy relevance, reproducibility, and specificity of measurements should be considered when creating a standardized ordinal scale for assessment.
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Affiliation(s)
- Katherine Adams
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mark W. Tenforde
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Shreya Chodisetty
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Benjamin Lee
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Eric J. Chow
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Wesley H. Self
- Department of Emergency Medicine and Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Manish M. Patel
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Smith MD, Fee C, Mace SE, Maughan B, Perkins JC, Kaji A, Wolf SJ. Clinical Policy: Critical Issues in the Management of Adult Patients Presenting to the Emergency Department With Community-Acquired Pneumonia. Ann Emerg Med 2021; 77:e1-e57. [PMID: 33349374 DOI: 10.1016/j.annemergmed.2020.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
This clinical policy from the American College of Emergency Physicians is a revision of the 2009 "Clinical Policy: Critical Issues in the Management of Adult Patients Presenting to the Emergency Department With Community-Acquired Pneumonia." A writing subcommittee conducted a systematic review of the literature to derive evidence-based recommendations to answer the following clinical questions: (1) In the adult emergency department patient diagnosed with community-acquired pneumonia, what clinical decision aids can inform the determination of patient disposition? (2) In the adult emergency department patient with community-acquired pneumonia, what biomarkers can be used to direct initial antimicrobial therapy? (3) In the adult emergency department patient diagnosed with community-acquired pneumonia, does a single dose of parenteral antibiotics in the emergency department followed by oral treatment versus oral treatment alone improve outcomes? Evidence was graded and recommendations were made based on the strength of the available data.
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Farghly S, Abd-Elkader R, El Zohne RA, Abd El-Kareem DM. Mean platelet volume change (∆MPV) and red blood cell distribution width (RDW) as promising markers of community-acquired pneumonia (CAP) outcome. THE EGYPTIAN JOURNAL OF BRONCHOLOGY 2020. [PMCID: PMC7439238 DOI: 10.1186/s43168-020-00024-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Prognostic markers play an essential role in the proper management of community-acquired pneumonia. This research work aimed to evaluate the association of RDW and /or MPV with mortality and morbidity in patients with CAP to improve the yield of already used prognostic scores.
Results
The current study enrolled 153 patients with community-acquired pneumonia (CAP). Out of them, 101 (64%) patients improved while 52 (36%) died. It was noticed that each of delta MPV and RDW (P < 0.001) had positive significant correlation with PSI and CURB-65. Delta MPV and RDW was significantly higher in patients who died (2.61 ± 1.01 vs. 1.78 ± 0.76; P = 0.01 for delta MPV and 16.50 ± 3.54 vs. 15.50 ± 2.81; P = 0.02 for RDW).
Conclusion
Initial RDW and rising MPV during hospitalization for CAP is associated with more severe clinical characteristics and high mortality. Moreover, the use of RDW and delta MPV in patients admitted with CAP can improve the performance of prognostic scales.
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High Mean Platelet Volume Associates with In-Hospital Mortality in Severe Pneumonia Patients. Mediators Inflamm 2020; 2020:8720535. [PMID: 32587473 PMCID: PMC7298326 DOI: 10.1155/2020/8720535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/01/2020] [Accepted: 05/13/2020] [Indexed: 01/20/2023] Open
Abstract
Background Although mean platelet volume (MPV) appears to be associated with poor outcome of pneumonia, the relationship between MPV and in-hospital mortality is unclear in severe pneumonia (SP) patients. Methods In this retrospective cohort study, 115 SP patients from June 1st, 2016, to September 29th, 2019, were included and divided into two groups. The primary outcome was in-hospital mortality. The receiver operating characteristic (ROC) curve was performed to assess the predictive ability for in-hospital mortality. Kaplan-Meier cumulative incidence curves were applied to observe the incidence of mortality. Multivariable Cox regression analyses were used to evaluate the hazard ratios (HRs). Besides, a formal test for interaction was investigated to analyze the relationship between MPV and sex. Results During the course of hospitalization, 63 cases of mortality were recorded. ROC analysis suggested that MPV had a modest power for predicting in-hospital mortality (AUC = 0.723, 95% CI: 0.628-0.818, P < 0.001). Yet the cutoff value of MPV was 10.5 (sensitivity = 73.02%; specificity = 73.08%). Compared to the low-MPV group, the high-MPV group had significantly increased in-hospital mortality (log-rank test = 13.501, P < 0.001), while the adjusted Cox model indicated that the high-MPV group was associated with an elevated risk of in-hospital mortality (HR: 2.267, 95% CI: 1.166-4.406, P = 0.016). Moreover, analyses of in-hospital mortality suggested a significant interaction between optimal MPV level and sex (P = 0.011). In a multivariate Cox model which included females only, a high MPV level was associated with increased risk of in-hospital mortality (HR: 11.387, 95% CI: 1.767-73.380, P = 0.011). Conclusion High MPV level is an independent risk factor for in-hospital mortality in patients with SP.
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8
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Takada T, Hoogland J, Yano T, Fujii K, Fujiishi R, Miyashita J, Takeshima T, Hayashi M, Azuma T, Moons KGM. Added value of inflammatory markers to vital signs to predict mortality in patients suspected of severe infection. Am J Emerg Med 2019; 38:1389-1395. [PMID: 31859198 DOI: 10.1016/j.ajem.2019.11.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/14/2019] [Accepted: 11/17/2019] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To evaluate the added value of inflammatory markers to vital signs to predict mortality in patients suspected of severe infection. METHODS This study was conducted at an acute care hospital (471-bed capacity). Consecutive adult patients suspected of severe infection who presented to either ambulatory care or the emergency department from April 2015 to March 2017 were retrospectively evaluated. A prognostic model for predicting 30-day in-hospital mortality based on previously established vital signs (systolic blood pressure, respiratory rate, and mental status) was compared with an extended model that also included four inflammatory markers (C-reactive protein, neutrophil-lymphocyte ratio, mean platelet volume, and red cell distribution width). Measures of interest were model fit, discrimination, and the net percentage of correctly reclassified individuals at the pre-specified threshold of 10% risk. RESULTS Of the 1015 patients included, 66 (6.5%) died. The extended model including inflammatory markers performed significantly better than the vital sign model (likelihood ratio test: p < 0.001), and the c-index increased from 0.69 (range 0.67-0.70) to 0.76 (range 0.75-0.77) (p = 0.01). All included markers except C-reactive protein showed significant contribution to the model improvement. Among those who died, 9.1% (95% CI -2.8-21.8) were correctly reclassified by the extended model at the 10% threshold. CONCLUSIONS The inflammatory markers except C-reactive protein showed added predictive value to vital signs. Future studies should focus on developing and validating prediction models for use in individualized predictions including both vital signs and the significant markers.
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Affiliation(s)
- Toshihiko Takada
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Jeroen Hoogland
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Tetsuhiro Yano
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan
| | - Kotaro Fujii
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan
| | - Ryuto Fujiishi
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan
| | - Jun Miyashita
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan; Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Taro Takeshima
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan
| | - Michio Hayashi
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan
| | - Teruhisa Azuma
- Department of General Medicine, Shirakawa Satellite for Teaching And Research (STAR), Fukushima Medical University, Fukushima, Japan
| | - Karel G M Moons
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
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Nageeb RS, Abozaid MMN, Nageeb GS, Omran AA. Mean platelet volume to platelet count ratio as a laboratory indicator of mortality in pneumonia following ischemic stroke. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2018; 54:27. [PMID: 30363799 PMCID: PMC6182329 DOI: 10.1186/s41983-018-0028-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 09/17/2018] [Indexed: 02/05/2023] Open
Abstract
Background Platelets have a vital role in antimicrobial host defenses. The objective of this study was to evaluate if increased mean platelet volume to platelet count (MPV/PC) ratio in acute ischemic stroke patients complicated with pneumonia was associated with increased mortality risk. Methods The current study was conducted at Zagazig University Hospitals. It included 500 acute ischemic stroke patients classified as group 1 that included 51 patients complicated with pneumonia after admission and group 2 that included the remaining 449 patients. Clinical assessment was carried out to exclude comorbid medical illnesses likely to interfere with platelet function or morphology. Laboratory investigations including MPV/PC ratio and brain imaging were carried out for all patients. Results There was a significant difference between both groups regarding age, National Institutes of Health Stroke Scale (NIHSS) score, and mortality within 30 days (p = 0.02, 0.03, 0.01). There was a significant difference between survivors and non-survivors of group 1 regarding to pneumonia severity index (PSI) classes IV and V (p = 0.01 and 0.02, respectively). Also, there was a significant difference regarding confusion, urea ≥ 7 mmol/L, respiratory rater ≥ 30 breaths/min, systolic blood pressure ≤ 90 mmHg or diastolic blood pressure ≤ 60 mmHg, and age ≥ 65 years at pneumonia occurrence (CURB-65) scores 3, 4, and 5 (p = 0.03, 0.02, and 0.01, respectively). Moreover, there was a significant difference regarding decreased GCS score at pneumonia occurrence, higher NIHSS scores, PSI, and higher MPV/PC ratio (p = 0.01, 0.01, 0.028, and 0.01, respectively). Age > 65 years, need for mechanical ventilation, GCS score of > 9, PSI class ≥ IV, CURB-65 scores ≥ 3, and increased MPV/PC ratio were all significantly associated with 30-day mortality in group 1 (p = 0.03, 0.01, 0.001, 0.04, 0.01, and 0.03, respectively). The predictors of 30-day mortality risk factors were GCS less than 9, increased MPV/PC ratio, and CURB-65 scores ≥ 3 (p = 0.001, 0.05, and 0.01, respectively). Conclusions Once pneumonia develops, MPV/PC ratio could be considered a significant laboratory indicator of 30-day mortality.
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Affiliation(s)
- Rania S Nageeb
- 1Department of Neurology, Faculty of Medicine, Zagazig University, Sharkia, Egypt
| | | | - Ghada S Nageeb
- 3Department of Rheumatology & Rehabilitation, Faculty of Medicine, Zagazig University, Sharkia, Egypt
| | - Alaa A Omran
- 4Department of Clinical Pathology, Faculty of Medicine, Zagazig University, Sharkia, Egypt
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Ulubay G, Ayvazoglu Soy E, Serifoglu I, Sozen F, Moray G, Haberal M. Utility of Mean Platelet Volume to Diagnose Pneumonia in Patients With Solid-Organ Transplant. EXP CLIN TRANSPLANT 2018. [PMID: 29528024 DOI: 10.6002/ect.tond-tdtd2017.p58] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Despite improved success with solid-organ transplant procedures, recipients remain at risk for infections, including pneumonia, due to their immunosuppressive regimens. In solid-organ transplant patients, clinical findings of pneumonia can be nonspecific, and diagnosis of pneumonia may be difficult as several conditions (drug lung, hypervolemia, infections, hemorrhage) can led to pulmonary infiltrates, mimicking pneumonia in these patients. The role of mean platelet volume, a predictor of inflammatory disease, with elevated values inversely correlated with inflammatory problems, in the diagnosis of pneumonia has not yet been investigated in solid-organ transplant patients. Here, we retrospectively investigated mean platelet volume in diagnosis of pneumonia in transplant patients. MATERIALS AND METHODS Medical records of solid-organ transplant patients from 2011 to 2016 were reviewed for demographic, clinical, radiographic, laboratory, and microbiology data. Transplant type, immunosuppressive drugs, and clinical outcomes were noted. Pneumonia diagnosis was based on clinical respiratory symptoms and signs, imaging findings, positive microbiological tests, pathologic findings, laboratory findings, or effective clinical treatment trials. RESULTS Our study included 70 patients (47 male/23 female; mean age of 46 ± 14 years), comprising 26 liver and 44 renal transplant recipients. Pneumonia was diagnosed radiologically in 30 patients (42.9%), with procalcitonin positive in 11 patients (36.7%), C-reactive protein elevated in 29 patients (96.7%), and leukocytes increased in 6 patients (20%). When laboratory measurements were compared with mean platelet volume, mean platelet volume values were significantly lower in patients with pneumonia who had elevated procalcitonin levels (P = .038). CONCLUSIONS We found that mean platelet volume for diagnosis of pneumonia in solid-organ transplant patients was not a promising tool. Considering the difficulties in caring for transplant patients with pulmonary infiltrates, clinical decisions should be based on clinical, laboratory, microbiological, and radiologic findings.
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Affiliation(s)
- Gaye Ulubay
- Department of Pulmonary Diseases, Baskent University Faculty of Medicine, Ankara, Turkey
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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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Chung SP, Yune HY, Park YS, You JS, Hong JH, Kong T, Park JW, Chung HS, Park I. Usefulness of mean platelet volume as a marker for clinical outcomes after out-of-hospital cardiac arrest: a retrospective cohort study. J Thromb Haemost 2016; 14:2036-2044. [PMID: 27437641 DOI: 10.1111/jth.13421] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 06/27/2016] [Indexed: 01/06/2023]
Abstract
Essentials It is unknown whether mean platelet volume (MPV) estimates outcomes after cardiac arrest (CA). We investigated whether MPV was associated with 30-day neurologic outcome and mortality after CA. Elevated MPV at admission was associated with poor neurological outcomes and mortality at 30 days. Identifying levels of MPV is helpful for estimating disease severity among resuscitated patients. SUMMARY Background Whole-body ischemia followed by reperfusion during cardiac arrest and after return of spontaneous circulation (ROSC) triggers systemic sterile inflammatory responses, inducing a sepsis-like state during post-cardiac arrest syndrome. Activated platelets are enlarged, and contain vasoactive and prothrombic factors that aggravate systemic inflammation and endothelial dysfunction. Objectives To investigate whether mean platelet volume (MPV) is useful as a marker for early mortality and neurologic outcomes in patients who achieve ROSC after out-of-hospital cardiac arrest (OHCA). Methods OHCA records from the Emergency Department Cardiac Arrest Registry were retrospectively analyzed. Patients who survived for > 24 h after ROSC were included. We evaluated mortality and cerebral performance category scores after 30 days. Results We analyzed records from 184 patients with OHCA. Increased 30-day mortality among patients who achieved ROSC after OHCA was associated with MPV at admission (hazard ratio [HR] 1.36; 95% confidence interval [CI] 1.06-1.75). An elevated MPV at admission was also associated with poor neurologic outcomes (HR 1.28; 95% CI 1.06-1.55). Conclusions An elevated MPV was independently associated with increased 30-day mortality, with the highest discriminative value being obtained upon admission after OHCA. An elevated MPV on admission was associated with poor neurologic outcomes. High MPVs are helpful for estimating 30-day mortality and neurologic outcomes among patients who achieve ROSC after OHCA.
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Affiliation(s)
- S P Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - H Y Yune
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Y S Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J S You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - J H Hong
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - T Kong
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J W Park
- Department of Emergency Medicine, Kosin University College of Medicine, Busan, Korea
| | - H S Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - I Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
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14
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Biteker FS, Başaran Ö, Doğan V, Çaylak SD, Yıldırım B, Sözen H. Prognostic value of transthoracic echocardiography and biomarkers of cardiac dysfunction in community-acquired pneumonia. Clin Microbiol Infect 2016; 22:1006.e1-1006.e6. [PMID: 27596535 DOI: 10.1016/j.cmi.2016.08.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 08/11/2016] [Accepted: 08/13/2016] [Indexed: 02/05/2023]
Abstract
The aim of this study was to determine the prognostic role of echocardiography and compare with admission N-terminal proB-type natriuretic peptide (NT-proBNP) levels in adult patients with community-acquired pneumonia (CAP). Consecutive adult patients hospitalized with CAP were prospectively enrolled and followed-up until hospital discharge or death. Echocardiography was performed within the first 48 hours. Complicated hospitalization (CH) was defined as intensive care unit admission, need for mechanical ventilation or in-hospital mortality. This study was registered with ClinicalTrials.gov, number NCT02441855. A total of 15 CH (13.5%) occurred among 111 patients with CAP. CAP patients with a CH compared with those without CH had significantly higher NT-proBNP values (1267.4±1146.1 vs. 305.6±545.7 pg/mL, p <0.001) and troponin I (23.8±24.3 vs. 10.3±6.3 ng/mL, p 0.02) but had lower left ventricle ejection fraction (52.7±8.7 vs. 60.5±6.7%, p <0.001) and tricuspid annular plane systolic excursion (TAPSE), which is a measure of right ventricular systolic function (17.1±4.4 vs. 21.8±4 mm; p 0.001). Patients with elevation of NT-proBNP and decreased TAPSE at presentation had a significantly higher probability of CH (60%) than patients with either elevated NT-proBNP or decreased TAPSE (40%). Patients with neither elevated NT-proBNP nor decreased TAPSE had a 0% probability of CH. This is the first study to demonstrate that decreased right ventricular systolic function is associated with increased rates of adverse events in patients with CAP.
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Affiliation(s)
- F S Biteker
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Turkey.
| | - Ö Başaran
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Cardiology, Turkey
| | - V Doğan
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Cardiology, Turkey
| | - S Dirgen Çaylak
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Turkey
| | - B Yıldırım
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Emergency Medicine, Muğla, Turkey
| | - H Sözen
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Turkey
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15
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Biomarkers in community-acquired pneumonia. J Infect 2015; 71:695-6. [DOI: 10.1016/j.jinf.2015.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 08/09/2015] [Indexed: 12/18/2022]
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16
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Yıldırım B, Biteker FS, Başaran Ö, Alataş ÖD, Acar E, Sözen H, Doğan V, Beydilli H, Çaylak SD. Is there a potential role for echocardiography in adult patients with CAP? Am J Emerg Med 2015; 33:1672-6. [PMID: 26324003 DOI: 10.1016/j.ajem.2015.06.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/16/2015] [Accepted: 06/16/2015] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The role of echocardiography in adult patients with community-acquired pneumonia (CAP) has not been tested in a clinical trial. The aim of the study was to assess the cardiac changes secondary to CAP by echocardiography and to find out the correlation between echocardiographic findings and the severity of CAP. METHODS A total of 111 unselected consecutive adult patients hospitalized with CAP were enrolled. The control group consisted of 100 consecutive sex- and age-matched patients. The severity of CAP was evaluated with the pneumonia severity index and the CURB-65 (confusion, urea, respiratory rate, arterial blood pressure and age) score. Blood samples were taken and echocardiography was performed within the first 48 hours. RESULTS White blood count, N-terminal pro-brain natriuretic peptide, and red blood cell distribution width were significantly higher in the CAP group compared with the control group. The 2 groups did not differ in terms of left and right ventricle ejection fraction, left atrial diameter, pulmonary artery systolic pressure, and left ventricular end-diastolic and end-systolic diameter. However, tricuspid annular plane systolic excursion (21.1 ± 4.3 vs 22.3 ± 4.1 mm; P = .04), aortic distensibility (2.5 ± 0.9 vs 3.5 ± 0.9 cm(2):dyne:10, P < .001), and aortic strain (5.8% ± 2% vs 6.5% ± 1.9%, P = .009) were significantly reduced in CAP group than in controls. The plasma concentration of N-terminal pro-brain natriuretic peptide correlated with aortic strain, aortic distensibility, tricuspid annular plane systolic excursion, pneumonia severity index score, and CURB-65 score. CONCLUSIONS Tricuspid annular plane systolic excursion and elastic properties of aorta may play a role in the diagnosis and clinical assessment of CAP severity, which could potentially guide the development of new prognostic models.
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Affiliation(s)
- Birdal Yıldırım
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Emergency Medicine.
| | - Funda Sungur Biteker
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology
| | - Özcan Başaran
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Cardiology
| | - Ömer Doğan Alataş
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Emergency Medicine
| | - Ethem Acar
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Emergency Medicine
| | - Hamdi Sözen
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology
| | - Volkan Doğan
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Cardiology
| | - Halil Beydilli
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Emergency Medicine
| | - Selmin Dirgen Çaylak
- Muğla Sıtkı Koçman University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology
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