1
|
Braï MA, Hannachi N, El Gueddari N, Baudoin JP, Dahmani A, Lepidi H, Habib G, Camoin-Jau L. The Role of Platelets in Infective Endocarditis. Int J Mol Sci 2023; 24:ijms24087540. [PMID: 37108707 PMCID: PMC10143005 DOI: 10.3390/ijms24087540] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/02/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Over the last decade, the incidence of infective endocarditis (IE) has increased, with a change in the frequency of causative bacteria. Early evidence has substantially demonstrated the crucial role of bacterial interaction with human platelets, with no clear mechanistic characterization in the pathogenesis of IE. The pathogenesis of endocarditis is so complex and atypical that it is still unclear how and why certain bacterial species will induce the formation of vegetation. In this review, we will analyze the key role of platelets in the physiopathology of endocarditis and in the formation of vegetation, depending on the bacterial species. We provide a comprehensive outline of the involvement of platelets in the host immune response, investigate the latest developments in platelet therapy, and discuss prospective research avenues for solving the mechanistic enigma of bacteria-platelet interaction for preventive and curative medicine.
Collapse
Affiliation(s)
- Mustapha Abdeljalil Braï
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
| | - Nadji Hannachi
- Laboratoire de Biopharmacie et Pharmacotechnie, Faculté de Médecine, Université Ferhat Abbas Sétif I, Sétif 19000, Algeria
| | - Nabila El Gueddari
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Service de Chirurgie Cardiaque, Hôpital de la Timone, APHM, Boulevard Jean-Moulin, 13385 Marseille, France
| | - Jean-Pierre Baudoin
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
| | - Abderrhamane Dahmani
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
| | - Hubert Lepidi
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Service d'Anatomo-Pathologie, Hôpital de la Timone, APHM, Boulevard Jean-Moulin, 13385 Marseille, France
| | - Gilbert Habib
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Service de Cardiologie, Hôpital de la Timone, APHM, Boulevard Jean-Moulin, 13385 Marseille, France
| | - Laurence Camoin-Jau
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille University, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Laboratoire d'Hématologie, Hôpital de la Timone, APHM, Boulevard Jean-Moulin, 13385 Marseille, France
| |
Collapse
|
2
|
Pisaryuk AS, Zamarashkina VA, Safarova NB, Povalyaev NM, Kotova EO, Babukhina UI, Koltsova EM, Kobalava ZD. Coagulation Disorders in Infective Endocarditis: Role of Pathogens, Biomarkers, Antithrombotic Therapy (Systematic Review). RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2022. [DOI: 10.20996/1819-6446-2022-06-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The issue of antithrombotic therapy in patients with infective endocarditis has been studied for over 75 years. During that time studying of pathogenesis of the disease and its embolic complications, lead to the introduction of the concept of “immunothrombosis”. That mechanism allows infective agents (mostly bacteria) to be cloaked from the immune system and to multiply freely, leading to growth of vegetation, thus resulting in higher chance of fragmentation. Small-scale experimental and clinical studies on the correction of hemostatic disorders in infective endocarditis, that were performed in 20th century, didn’t show any significant results, that could affect clinical practice. However, reinterpretation of available data on coagulative system will allow to have elements of hemostasis as an application point in treating infective endocarditis. The article will discuss latest insights on the role of hemostasis system in pathophysisology of infective endocarditis, its effects on the development of the embolic complications, perspectives for diagnostics and treatment.
Collapse
Affiliation(s)
- A. S. Pisaryuk
- RUDN University; Moscow City Hospital named after V.V. Vinogradov
| | | | | | | | | | | | - E. M. Koltsova
- Center for Theoretical Problems of Physicochemical Pharmacology; Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology
| | | |
Collapse
|
3
|
Erdoğan S, Sürmeli Döven S. Evaluation of platelet indices in children with renal scarring based on diagnostic accuracy criteria and Cohen's kappa. Pediatr Int 2022; 64:e15055. [PMID: 34773425 DOI: 10.1111/ped.15055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 10/04/2021] [Accepted: 11/11/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Renal scarring is a significant complication in recurrent urinary tract infections (UTIs) in children that can lead to hypertension and end-stage renal disease. The present study evaluates whether platelet indices may be predictive of renal scarring. METHODS Sixty-nine patients aged 1-18 years with recurrent UTIs, whose medical records were reviewed to collect data on the presence of upper/lower UTIs and the results of scintigraphic investigations with 99m-technetium dimercaptosuccinic acid, were included in the study. The platelet, platelet indices (mean platelet volume [MPV]), platelet distribution width, plateletcrit, and C-reactive protein (CRP) values of the patients during UTI episodes were reviewed retrospectively. RESULTS Mean platelet volume and CRP values were higher in the renal scarring group than in the non-renal scarring group (P < 0.001 and P = 0.003, respectively). Increases in MPV and CRP values were independent risk factors for renal scarring (OR = 5.781 [1.431-23.347] and OR = 1.922 [1.77-3.141], respectively). The sensitivity, specificity, positive and negative predictive values, and diagnostic odds ratio values of MPV at a cut-off of >8.2 fL for renal scarring discrimination were 62.5%, 88.89%, 75.00%, 81.63%, and 13.33 [1.35-3.83], respectively. The sensitivity, specificity, positive and negative predictive values, and diagnostic odds ratio values of CRP at a cut-off of 1.97 mg/L for renal scarring were 58.33%, 91.11%, 77.78%, 80.39%, and 14.35 [1.36-3.97], respectively. CONCLUSION Both MPV and CRP can be used as predictive markers for renal scarring. While MPV had higher sensitivity, CRP had a higher specificity and diagnostic odds ratio in predicting renal scarring.
Collapse
Affiliation(s)
- Semra Erdoğan
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Serra Sürmeli Döven
- Department of Pediatric Nephrology, Faculty of Medicine, Mersin University, Mersin, Turkey
| |
Collapse
|
4
|
Li Z, Gao Q, Ren Z, Zhou H, Qian Z, Peng J. Nomogram based on neutrophil-to-platelet ratio to predict in-hospital mortality in infective endocarditis. Biomark Med 2021; 15:1233-1243. [PMID: 34488440 DOI: 10.2217/bmm-2021-0085] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Aim: To develop a nomogram based on neutrophil-to-platelet ratio (NPR) to predict in-hospital mortality in infective endocarditis (IE) patients. Methods: We retrospectively analyzed 294 consecutive patients classified as survivors or nonsurvivors according to hospitalization outcome. Logistic regression analyses were performed to identify independent predictors for in-hospital mortality. A nomogram based on them was established and assessed by receiver operating characteristic (ROC) curve analysis. Results: Admission NPR (odds ratio [OR] = 1.095, 95% CI: 1.037-1.156), positive blood culture (OR = 9.220; 95% CI: 1.478-57.521) and left-sided endocarditis (OR = 5.099; 95% CI: 1.104-23.553) independently predicted in-hospital mortality in IE. The area under the ROC curve for the nomogram based on these predictors was 0.832. Conclusion: The nomogram based on NPR could be used for early risk stratification of IE patients.
Collapse
Affiliation(s)
- Zhuohong Li
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiqing Gao
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zuning Ren
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hao Zhou
- Department of Hospital Infection Management, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhe Qian
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jie Peng
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
5
|
Chen WA, Fletcher HM, Gheorghe JD, Oyoyo U, Boskovic DS. Platelet plug formation in whole blood is enhanced in the presence of Porphyromonas gingivalis. Mol Oral Microbiol 2020; 35:251-259. [PMID: 32949112 PMCID: PMC11139348 DOI: 10.1111/omi.12314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 12/30/2022]
Abstract
Porphyromonas gingivalis is a gram-negative anaerobic bacterium and an etiologic agent of adult periodontitis. By inducing a dysbiotic state within the host microbiota it contributes to a chronic inflammatory environment in the oral cavity. Under some circumstances, the oral bacteria may gain access to systemic circulation. While the most widely recognized function of platelets is to reduce hemorrhage in case of vascular damage, it is known that platelets are also involved in the hematologic responses to bacterial infections. Some pathogenic bacteria can interact with platelets, triggering their activation and aggregation. The aim of this study was to assess platelet responses to the presence of P. gingivalis in whole blood. Human whole blood was pretreated with P. gingivalis and then platelet plug formation was measured under high shear conditions using the PFA-100. In the presence of P. gingivalis, time for a platelet plug to occlude the aperture in the collagen/ADP cartridge was shortened in a manner dependent on bacterial concentration and the duration of bacterial preincubation of blood. P. gingivalis enhances thrombus forming potential of platelets in whole blood.
Collapse
Affiliation(s)
- William A Chen
- Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Hansel M Fletcher
- Division of Microbiology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Joseph D Gheorghe
- Department of Pathology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Udochukwu Oyoyo
- Department of Dental Education Services, School of Dentistry, Loma Linda University, Loma Linda, CA, USA
| | - Danilo S Boskovic
- Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| |
Collapse
|
6
|
Clinical utility of mean platelet volume and related scores for assessing the severity of hepatic fibrosis in chronic hepatitis C patients. Eur J Gastroenterol Hepatol 2020; 32:664-665. [PMID: 32251207 DOI: 10.1097/meg.0000000000001657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
|
7
|
Cell-derived microvesicles in infective endocarditis: Role in diagnosis and potential for risk stratification at hospital admission. J Infect 2019; 79:101-107. [PMID: 31207323 DOI: 10.1016/j.jinf.2019.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/09/2019] [Accepted: 06/10/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To characterize the plasmatic profile of cell-derived microvesicles (MVs) at diagnosis and during the treatment of patients with infective endocarditis (IE). METHODS Blood samples from 57 patients with IE were obtained on 3 consecutive moments: upon admission (T0), at 2 weeks (T1), and at the end of treatment (T2), and were compared with 22 patients with other bacterial infections. MPs were measured by flow cytometry and labeled for specific cell markers of CD45 (leukocytes), CD66b (neutrophils), CD14 (monocytes), CD41a (platelets), CD51 (endothelial cells), CD3 (T lymphocyte) and CD235a (erythrocytes). RESULTS MVs from platelets (pltMVs), leukocytes (leukMVs), neutrophils (neutMVs), monocytes (monoMVs) and lymphocytes (lymphMVs) were significantly more elevated in the patients with IE, compared to the patients with other bacterial infections, despite comparable age, sex, blood counts and C-reactive protein levels. MVs values revealed a relatively stable pattern over time in IE, except for a significant increase in leukMVs and neutMVs in T1. LeukMVs (p = 0.011), neutMVs (p = 0.010), monoMVs (p = 0.016) and lymphMVs (p = 0.020), measured at admission, were significantly higher in IE patients that died during hospitalization in comparison with those that survived. In a multivariable analyses, the levels of neutMVs remained as an independent factor associated with mortality (odds ratio 2.203; 95% confidence interval 1.217 - 3.988; p = 0.009), adjustment for heart failure during the treatment. CONCLUSIONS Plasma levels of pltMVs, leukMVs, neutMVs, monoMVs and lymphMVs were significantly more elevated in patients with IE than in patients with other bacterial infections at hospital admission. Furthermore, neutMVs at admission have been identified as an independent predictor of mortality in patients with IE. Thus, cell derived MPs may become an important tool in the differential diagnosis and mortality risk assessment early in the course of IE suspected cases.
Collapse
|
8
|
Baseline C-reactive protein levels and prognosis in patients with infective endocarditis: A prospective cohort study. Indian Heart J 2018; 70 Suppl 3:S43-S49. [PMID: 30595302 PMCID: PMC6309136 DOI: 10.1016/j.ihj.2018.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 03/20/2018] [Accepted: 05/01/2018] [Indexed: 12/13/2022] Open
Abstract
Background Early diagnosis and risk-stratification among infective endocarditis (IE) patients are limited by poor microbiological yield and inadequate characterization of vegetations. A simple tool that can predict adverse outcomes in the early phase of management is required. Aim To study the prognostic value of C-reactive protein (CRP) levels at admission and its role in predicting various clinical outcomes. Methods In a prospective study of consecutive IE patients diagnosed by modified Duke’s criteria, we measured the peak levels of CRP and erythrocyte sedimentation rate (ESR) in the first 3 days of admission and correlated it with in-hospital mortality, six-month mortality, embolic phenomena and the need for urgent surgery. Predefined laboratory-microbiological sampling protocols and antibiotic-initiation protocols were followed. Receiver-operating-characteristics curves were generated to identify a reliable cut-off for CRP in predicting various outcomes. Results Out of 101 patients who were treated, 85 patients had ‘definite’ IE. Blood cultures were positive in 55% (n = 39); and Staphylococcus species was the most common organism. Major complications occurred in 74.1% (n = 63) and in-hospital mortality was 32.9% (n = 28). Mean ESR and CRP levels were 102 ± 31 mm/h and 51 ± 20 mg/l, respectively. In multivariable analysis, high CRP levels were independently predictive of mortality, major complications, embolic events and need for urgent surgery. A CRP >40 mg/l predicted adverse outcomes with a sensitivity of 73% and specificity of 99%. Conclusion The study shows that baseline CRP level in the first 3 days of admission is a strong predictor of short term adverse outcomes in IE patients, and a useful marker for early risk stratification.
Collapse
|
9
|
Mean platelet volume may predict histological severity of primary biliary cirrhosis, but drugs and comorbidities are major concerns. Eur J Gastroenterol Hepatol 2016; 28:116. [PMID: 26594915 DOI: 10.1097/meg.0000000000000494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
|
10
|
Altunayoglu Cakmak V, Ozsu S, Gulsoy A, Akpinar R, Bulbul Y. The Significance of the Relative Lymphocyte Count as an Independent Predictor of Cardiovascular Disease in Patients with Obstructive Sleep Apnea Syndrome. Med Princ Pract 2016; 25:455-60. [PMID: 27322584 PMCID: PMC5588447 DOI: 10.1159/000447697] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 06/19/2016] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this study was to determine whether or not relative lymphocyte count (RLC) is associated with cardiovascular disease (CVD) in patients with obstructive sleep apnea syndrome (OSAS). SUBJECTS AND METHODS In this study, 141 patients diagnosed with OSAS using polysomnography were enrolled. Patients were classified according to the severity of OSAS as determined by the apnea-hypopnea index (AHI) and presence of CVD. Lymphocyte count and other hematological parameters at complete blood count were determined and compared between patients with and without CVD. Multivariate regression analysis was used to estimate the associated factors for presence of CVD. RESULTS Absolute and relative lymphocyte counts were lower in the OSAS patients with CVD compared to those without CVD (mean absolute lymphocyte counts: 2.0 × 103 vs. 2.5 × 103 µl, p = 0.004, and mean RLC: 28.3 vs. 33.9%, p = 0.001, respectively). OSAS patients with CVD (14.2) had higher red cell distribution width values than the patients without CVD (13.4) (p = 0.005). Multivariate analysis identified RLC as an independent predictor of CVD in patients with OSAS (odds ratio = 0.9, 95% CI: 0.85-1.0, p = 0.042). CONCLUSION RLC was identified as an independent predictor of CVD in patients with OSAS. Since RLC is a widely available diagnostic tool with no additional costs over the routinely performed complete blood count, it can be used for predicting CVD in patients with OSAS.
Collapse
Affiliation(s)
- Vildan Altunayoglu Cakmak
- Department of Neurology, Trabzon, Turkey
- *Vildan Altunayoglu Cakmak, Department of Neurology, Faculty of Medicine, Karadeniz Technical University, Farabi Hospital street, TR—61080 Trabzon (Turkey), E-Mail
| | - Savas Ozsu
- Department of Pulmonary Medicine, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Ayhan Gulsoy
- Department of Pulmonary Medicine, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | | | - Yilmaz Bulbul
- Department of Pulmonary Medicine, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| |
Collapse
|
11
|
Mean platelet volume in young children with urinary tract infection. Sci Rep 2015; 5:18072. [PMID: 26666588 PMCID: PMC4678298 DOI: 10.1038/srep18072] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 11/10/2015] [Indexed: 12/20/2022] Open
Abstract
Mean platelet volume (MPV) has not yet been well-established in urinary tract infection (UTI). The purpose of this study was to evaluate the role of MPV as an acute phase reactant in children with UTI. Data from 118 young children (<2 years) with UTI between 2012 and 2013 were grouped as acute pyelonephritis (APN) and lower UTI according to the dimercaptosuccinic acid (DMSA) scan abnormalities. MPV, platelet distribution width (PDW) platelet count, and other infection markers (white blood cell [WBC] count, erythrocyte sedimentation rate [ESR], and C-reactive protein [CRP]) were measured. WBC (P = 0.001), ESR (P = 0.005), CRP (P < 0.001) and MPV levels (P = 0.011) were significantly higher in the APN group than those in the lower UTI group. MPV positively correlated with PDW, CRP and negatively with platelet count. Multiple logistic regression analyses showed that CRP and MPV were independent predictive factors for APN patients. However, the area under the Receiver Operating Characteristic (ROC) curve analysis for MPV was lower than CRP. Our results suggest that MPV can be an inflammatory marker in UTI, but the predictive value of MPV was not superior to CRP in the diagnosis of APN.
Collapse
|
12
|
Han L, Han T, Nie C, Zhang Q, Cai J. Elevated mean platelet volume is associated with poor short-term outcomes in hepatitis B virus-related acute-on-chronic liver failure patients. Clin Res Hepatol Gastroenterol 2015; 39:331-9. [PMID: 25465870 DOI: 10.1016/j.clinre.2014.10.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/15/2014] [Accepted: 10/06/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM It has been shown that mean platelet volume (MPV) can be used as a prognostic biomarker in some chronic diseases. The aim of the present study is to investigate the possible association between MPV and clinical outcome and prognosis in patients with HBV-related acute-on-chronic liver failure (HBV-ACLF) within 4 weeks. METHODS This study included 64 patients with HBV-ACLF, 19 chronic hepatitis B (CHB) patients, 27 patients with hepatitis B-related cirrhosis (CR, Child-Pugh A/B), 51 healthy subjects (healthy controls [HC]). The complete blood counts and biochemical examination of blood were obtained after 12h of fasting. In the ACLF group, the relationships between the prognosis and the MPV were analyzed. RESULTS At baseline, a statistically significant increase in MPV was shown in patients with ACLF (median 9.5, range 7.1-14.1) compared with HC (8.0, 7.2-11.9, P<0.001), CR (8.4, 5.9-11.1, P<0.001) and CHB (8.3, 7.3-12.0, P<0.001). The MPV value was positively correlated with model of end-stage liver disease (MELD) score and international normalized ratio (INR). The MPV level was significantly increased in nonsurvivors than survivors. High MPV level showed a significantly lower survival rate (P=0.001). Multivariate logistic regression analysis showed that only MPV level was independent factor predicting poor short-term outcomes. CONCLUSION MPV values at presentation were higher among nonsurvivors than survivors, and this parameter was well correlated with liver function parameters and may be used as a predictor for 4-week mortality rate in patients with HBV-ACLF.
Collapse
Affiliation(s)
- Liyao Han
- The Third Central Clinical College of Tianjin Medical University, 300170 Tianjin, PR China; Department of Hepatology, Tianjin Third Central Hospital, 300170 Tianjin, PR China
| | - Tao Han
- The Third Central Clinical College of Tianjin Medical University, 300170 Tianjin, PR China; Department of Hepatology, Tianjin Third Central Hospital, 300170 Tianjin, PR China; Tianjin Institute of Hepatobiliary Disease, Tianjin Key laboratory of Artificial Cell, The Third Central Hospital of Tianjin, 300170 Tianjin, PR China.
| | - Caiyun Nie
- The Third Central Clinical College of Tianjin Medical University, 300170 Tianjin, PR China; Department of Hepatology, Tianjin Third Central Hospital, 300170 Tianjin, PR China
| | - Qian Zhang
- The Third Central Clinical College of Tianjin Medical University, 300170 Tianjin, PR China; Department of Hepatology, Tianjin Third Central Hospital, 300170 Tianjin, PR China
| | - Junjun Cai
- The Third Central Clinical College of Tianjin Medical University, 300170 Tianjin, PR China; Department of Hepatology, Tianjin Third Central Hospital, 300170 Tianjin, PR China
| |
Collapse
|
13
|
Gálvez-Martínez M, Servín-Caamaño AI, Pérez-Torres E, Salas-Gordillo F, Rivera-Gutiérrez X, Higuera-de la Tijera F. Mean platelet volume as a novel predictor of systemic inflammatory response in cirrhotic patients with culture-negative neutrocytic ascites. World J Hepatol 2015; 7:1001-1006. [PMID: 25954482 PMCID: PMC4419093 DOI: 10.4254/wjh.v7.i7.1001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 02/21/2015] [Accepted: 04/07/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To identify a mean platelet volume (MPV) cutoff value which should be able to predict the presence of bacterial infection.
METHODS: An observational, analytic, retrospective study. We evaluated medical records of cirrhotic patients who were hospitalized from January 2012 to January 2014 at the Gastroenterology Department of “Hospital General de México Dr. Eduardo Liceaga”, we included 51 cirrhotic patients with ascites fluid infection (AFI), and 50 non-infected cirrhotic patients as control group. Receiver operator characteristic curves were used to identify the best cutoff value of several parameters from hematic cytometry, including MPV, to predict the presence of ascites fluid infection.
RESULTS: Of the 51 cases with AFI, 48 patients (94.1%) had culture-negative neutrocytic ascites (CNNA), 2 (3.9%) had bacterial ascites, and one (2%) had spontaneous bacterial peritonitis. Infected patients had greater count of leucocytes and polymorphonuclear cells, greater levels of MPV and cardiac frequency (P < 0.0001), and lower mean arterial pressure compared with non-infected patients (P = 0.009). Leucocytes, polymorphonuclear count, MPV and cardiac frequency resulted to be good or very good predictive variables of presence of AFI in cirrhotic patients (area under the receiving operating characteristic > 0.80). A cutoff MPV value of 8.3 fl was the best to discriminate between cirrhotic patients with AFI and those without infection.
CONCLUSION: Our results support that MPV can be an useful predictor of systemic inflammatory response syndrome in cirrhotic patients with AFI, particularly CNNA.
Collapse
|
14
|
Association of mean platelet volume level with in-hospital major adverse events in infective endocarditis. Wien Klin Wochenschr 2015; 127:197-202. [PMID: 25777146 DOI: 10.1007/s00508-015-0746-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 01/20/2015] [Indexed: 10/23/2022]
Abstract
We hypothesised that increased on-admission and follow-up mean platelet volume (MPV) levels would correlate with adverse outcomes in patients with infective endocarditis (IE). A total of 108 consecutive patients were grouped into two according to median MPV level (≤ 8.6 and > 8.6 fL). Patients with MPV level of > 8.6 fL had a significantly higher rate of end-stage renal disease, Staphylococcus aureus infection, higher CRP levels, embolic events and in-hospital mortality compared to patients with MPV levels ≤ 8.6 fL. In multivariable Cox regression analysis, previous history of IE, S. aureus infection, end-stage renal disease, depressed LVEF, early surgical intervention, vegetation size ≥ 10 mm, presence of perivalvular abscess, higher on-admission platelet count, CRP and MPV levels emerged as independent predictors of in-hospital unfavourable outcomes. Patients with embolic events and in-hospital mortality revealed an incremental trend for MPV levels compared to patients without any adverse events. Our study results suggest that both on-admission and follow-up MPV levels may be a simple and available biomarker for risk stratification of IE patients.
Collapse
|
15
|
Sezgi C, Taylan M, Kaya H, Selimoglu Sen H, Abakay O, Demir M, Abakay A, Tanrikulu AC. Alterations in platelet count and mean platelet volume as predictors of patient outcome in the respiratory intensive care unit. CLINICAL RESPIRATORY JOURNAL 2014; 9:403-8. [DOI: 10.1111/crj.12151] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/25/2014] [Accepted: 04/08/2014] [Indexed: 01/16/2023]
Affiliation(s)
- Cengizhan Sezgi
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | - Mahsuk Taylan
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | - Halide Kaya
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | - Hadice Selimoglu Sen
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | - Ozlem Abakay
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | - Melike Demir
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | - Abdurrrahman Abakay
- Department of Pulmonary Diseases; Dicle University School of Medicine; Diyarbakir Turkey
| | | |
Collapse
|
16
|
Canpolat U, Turak O, Özcan F, Özeke Ö, Aras D. Clinical outcomes and inflammatory markers should be kept in mind when assessing the mean platelet volume in patients with infective endocarditis. Med Princ Pract 2014; 23:391-2. [PMID: 24504258 PMCID: PMC5586890 DOI: 10.1159/000358252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Uğur Canpolat
- *Uğur Canpolat, Cardiology Clinic, Türkiye Yüksek Ýhtisas Training and Research Hospital, TR-06100 Sýhhiye, Ankara (Turkey), E-Mail
| | | | | | | | | |
Collapse
|
17
|
Balta S, Demirkol S, Unlu M, Kucuk U, Arslan Z. Current opinion: mean platelet volume is one of the most important parameters at the first glance. Med Princ Pract 2014; 23:189-90. [PMID: 23988523 PMCID: PMC5586841 DOI: 10.1159/000354738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 07/11/2013] [Indexed: 11/19/2022] Open
Affiliation(s)
- Sevket Balta
- *Dr. Sevket Balta, Department of Cardiology, Gulhane School of Medicine, Tevfik Saglam St., TR-06018 Etlik-Ankara (Turkey), E-Mail
| | | | | | | | | |
Collapse
|
18
|
Cho SY, Jeon YL, Kim W, Kim WS, Lee HJ, Lee WI, Park TS. Mean platelet volume and mean platelet volume/platelet count ratio in infective endocarditis. Platelets 2013; 25:559-61. [PMID: 24205785 DOI: 10.3109/09537104.2013.857394] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Infective endocarditis (IE), an infection of the endocardial surface, frequently leads to life-threatening complications, such as thromboembolism due to platelet activation. We investigated the mean platelet volume (MPV) in Korean patients with IE and the serial changes thereof, in comparison with other laboratory parameters. We analyzed 248 MPV results from 22 patients diagnosed with IE in our hospital between January 2011 and April 2012. MPV was measured with an Advia 2120 (Siemens Healthcare Diagnostics, Tarrytown, NY) using EDTA-containing tubes. The mean MPV differed significantly between the patient and control groups, 8.74 vs. 7.96 fl, respectively. In addition, the platelet count and MPV/platelet count ratio were significantly decreased in the patient group. The total platelet mass and platelet size in IE might be increased. Further studies should examine more patients to verify the changes in the MPV and MPV/platelet count ratio in IE and assess in greater detail the relationship between MPV and thrombotic complications caused by platelet activation.
Collapse
Affiliation(s)
- Sun Young Cho
- Department of Laboratory Medicine, School of Medicine, Kyung Hee University , Seoul , Korea and
| | | | | | | | | | | | | |
Collapse
|
19
|
Kim SH, Choi BI, Lee JY, Kim SJ, So YH, Eun HW, Lee JM, Han JK. Diagnostic accuracy of multi-/single-detector row CT and contrast-enhanced MRI in the detection of hepatocellular carcinomas meeting the milan criteria before liver transplantation. Intervirology 2008; 51 Suppl 1:52-60. [PMID: 18544949 DOI: 10.1159/000122598] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Liver transplantation has been considered to be the only causal treatment for liver cirrhosis patients with hepatocellular carcinoma (HCC) due to its theoretical advantage of eliminating both the tumor and liver disease. However, because of the shortage of donor organs, it is strongly recommended that liver transplantations should be performed on cirrhotic patients with HCCs only when the patients meet the predetermined criteria in terms of number and extent of HCCs. Imaging is thus decisive in the patient inclusion or exclusion from transplantation lists. The imaging techniques used are CT, MRI and ultrasonography. The latter has been proven to be ineffective for HCC surveillance in transplant recipients because of its heavy operator dependence and unreliable detection of small and intermediately sized HCCs. The purpose of this article, then, is to systematically review the diagnostic performances of single-/multidetector row CT, dynamic gadolinium-enhanced MRI, superparamagnetic iron oxide (SPIO)-enhanced MRI and double-contrast MRI using both gadolinium and SPIO for the detection of HCCs with special emphasis on liver transplantation.
Collapse
Affiliation(s)
- Se Hyung Kim
- Department of Radiology and Institute of Radiation Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | | | | | | | | | | | | | | |
Collapse
|