1
|
Jafari Afshar E, Shahnavaz V, Talakoob H, Kafialqora P, Madady A, Pourbahrighesmat S, Tayebi A, MozafaryBazargany M, Gholami N, Ayati A, Samimisedeh P, Rastad H, Karim H. Immature Platelet Fraction and Acute Coronary Syndrome; a Systematic Review and Meta-Analysis. ARCHIVES OF ACADEMIC EMERGENCY MEDICINE 2024; 12:e43. [PMID: 38962365 PMCID: PMC11221823 DOI: 10.22037/aaem.v12i1.2292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Introduction Immature Platelet Fraction (IPF) is a measure of the proportion of reticulated platelets (RPs) to all platelets in circulation. IPF may have both prognostic and diagnostic values in patients with Acute Coronary Syndrome (ACS). This study aims to comprehensively summarize the diagnostic utility of IPF levels in patients with ACS, specifically focusing on its ability to differentiate between different subtypes of ACS. Methods We conducted a systematic search in online databases including MEDLINE, Scopus, and Google Scholar up to March 4th 2024, to identify relevant studies. The random-effect model, employing inverse variance for mean differences (MD) and Mantel-Haenszel methods for odds ratios (OR) were utilized to combine the data. Joanna Briggs Institute (JBI) appraisal tool was employed to assess the quality of included studies. Results Our systematic review contains 15 articles with a total sample size of 2,030 ACS patients. Pooled analysis revealed significant differences in IPF levels of ACS patients compared to healthy controls (MD (95%CI): 2.85 (0.86, 4.85), P-value = 0.004) and stable angina patients (MD (95%CI): 0.58 (0.23, 0.92), P-value < 0.001). Subgroup comparisons within ACS patients demonstrated higher IPF levels in myocardial infarction (MI) vs. unstable angina (UA) (MD (95%CI): 1.81 (0.41, 3.22), P-value = 0.01), ST elevation MI (STEMI) vs. non-ST elevation (NSTEMI) ACS (MD (95%CI): 0.74 (0.31, 1.17), P-value < 0.001), and NSTEMI vs. UA (MD (95% CI): 1.07 (0.24, 1.90), P-value = 0.01). Conclusion IPF levels could increase in patients with ACS, particularly during the acute phase of STEMI. This suggests that IPF may be a useful biomarker for early diagnosis of ACS. Additionally, IPF levels may help differentiate between ACS subtypes.
Collapse
Affiliation(s)
- Elmira Jafari Afshar
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
- Elmira Jafari Afshar & Vahid Shahnavaz equally contributed to this work and shared the first author
| | - Vahid Shahnavaz
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
- Elmira Jafari Afshar & Vahid Shahnavaz equally contributed to this work and shared the first author
| | - Hamed Talakoob
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | - Parnaz Kafialqora
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | - Aryan Madady
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | | | - Amirhossein Tayebi
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | | | - Niloofar Gholami
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | - Aryan Ayati
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parham Samimisedeh
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | - Hadith Rastad
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| | - Hossein Karim
- Cardiovascular Research Center, Alborz University of Medical Sciences, Alborz, Iran
| |
Collapse
|
2
|
Hajeyah AA, Protty MB, Paul D, Costa D, Omidvar N, Morgan B, Iwasaki Y, McGill B, Jenkins PV, Yousef Z, Allen-Redpath K, Soyama S, Choudhury A, Mitra R, Yaqoob P, Morrissey JH, Collins PW, O'Donnell VB. Phosphatidylthreonine is a procoagulant lipid detected in human blood and elevated in coronary artery disease. J Lipid Res 2024; 65:100484. [PMID: 38103786 PMCID: PMC10809103 DOI: 10.1016/j.jlr.2023.100484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023] Open
Abstract
Aminophospholipids (aPL) such as phosphatidylserine are essential for supporting the activity of coagulation factors, circulating platelets, and blood cells. Phosphatidylthreonine (PT) is an aminophospholipid previously reported in eukaryotic parasites and animal cell cultures, but not yet in human tissues. Here, we evaluated whether PT is present in blood cells and characterized its ability to support coagulation. Several PT molecular species were detected in human blood, washed platelets, extracellular vesicles, and isolated leukocytes from healthy volunteers using liquid chromatography-tandem mass spectrometry. The ability of PT to support coagulation was demonstrated in vitro using biochemical and biophysical assays. In liposomes, PT supported prothrombinase activity in the presence and absence of phosphatidylserine. PT nanodiscs strongly bound FVa and lactadherin (nM affinity) but poorly bound prothrombin and FX, suggesting that PT supports prothrombinase through recruitment of FVa. PT liposomes bearing tissue factor poorly generated thrombin in platelet poor plasma, indicating that PT poorly supports extrinsic tenase activity. On platelet activation, PT is externalized and partially metabolized. Last, PT was significantly higher in platelets and extracellular vesicle from patients with coronary artery disease than in healthy controls. In summary, PT is present in human blood, binds FVa and lactadherin, supports coagulation in vitro through FVa binding, and is elevated in atherosclerotic vascular disease. Our studies reveal a new phospholipid subclass, that contributes to the procoagulant membrane, and may support thrombosis in patients at elevated risk.
Collapse
Affiliation(s)
- Ali A Hajeyah
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom; Department of Biological Sciences, Kuwait University, Safat, Kuwait.
| | - Majd B Protty
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Divyani Paul
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Daniela Costa
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Nader Omidvar
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Bethan Morgan
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | - Yugo Iwasaki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Japan
| | - Beth McGill
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
| | | | - Zaheer Yousef
- University Hospital of Wales, Cardiff, United Kingdom
| | - Keith Allen-Redpath
- Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
| | - Shin Soyama
- Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
| | | | - Rito Mitra
- University Hospital of Wales, Cardiff, United Kingdom
| | - Parveen Yaqoob
- Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
| | - James H Morrissey
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Peter W Collins
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom
| | - Valerie B O'Donnell
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom.
| |
Collapse
|
3
|
Subramaniam S, Reinhardt C, Kulkarni PP, Spiezia L. Editorial: COVID-19 and thrombo-inflammatory responses. Front Cardiovasc Med 2023; 10:1231909. [PMID: 37396577 PMCID: PMC10311441 DOI: 10.3389/fcvm.2023.1231909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 07/04/2023] Open
Affiliation(s)
- Saravanan Subramaniam
- Pulmonary Center, Department of Medicine, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, United States
| | - Christoph Reinhardt
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site RhineMain, Mainz, Germany
| | - Paresh P. Kulkarni
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Luca Spiezia
- Thrombosis and Hemorrhagic Diseases Unit Medicine, Padova University Hospital, Padova, Italy
| |
Collapse
|
4
|
Daniels S, Wei H, van Tongeren M, Denning DW. Are platelet volume indices of clinical use in COVID-19? A systematic review. Front Cardiovasc Med 2022; 9:1031092. [PMID: 36329999 PMCID: PMC9623063 DOI: 10.3389/fcvm.2022.1031092] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/03/2022] [Indexed: 12/15/2022] Open
Abstract
Background The incidence of thrombotic complications is high in COVID-19 patients with severe disease. As key regulators of thrombus formation, platelets likely play a crucial role as mediators of severe acute respiratory syndrome coronavirus 2 associated pathogenesis. Studies have reported that parameters reflecting platelet size, known as platelet volume indices (PVI), are raised in patients with thrombosis and can predict poor outcomes. This systematic review evaluates the potential for PVI to be used as a predictor of COVID-19 morbidity and mortality. Methods English and Chinese databases were searched electronically to identify studies reporting data on mean platelet volume, platelet distribution width or platelet-large cell ratio in COVID-19 patients. Included articles underwent a quality rating and descriptive narrative analysis. Results Thirty-two studies were included in the systematic review. The results show a general trend for PVI to be raised in severe COVID-19 patients and non-survivors, with 14 studies reporting significant differences of baseline PVI between severe and mild disease. Nonetheless, longitudinal studies showed varying PVI trends over the course of the disease and evidence for PVI to be associated with disease progression was limited. The quality rating of 12 studies was poor, 16 were rated fair and four were good. Most studies were retrospective in design, used small study populations and did not consider confounding factors that influence platelet volume. Studies also contained technical flaws in PVI measurement, limiting the reliability of the results. Conclusion The evidence on the clinical usefulness of PVI is greatly limited by the lack of prospective evaluation, together with technical problems in measuring PVI. Carefully designed prospective studies are warranted. Systematic review registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=304305, identifier CRD42022304305.
Collapse
Affiliation(s)
- Sarah Daniels
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Hua Wei
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Martie van Tongeren
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - David W Denning
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom.,Division of Evolution, Infection and Genomics, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| |
Collapse
|
5
|
Shumilah AM, Othman AM, Al-Madhagi AK. Accuracy of neutrophil to lymphocyte and monocyte to lymphocyte ratios as new inflammatory markers in acute coronary syndrome. BMC Cardiovasc Disord 2021; 21:422. [PMID: 34493205 PMCID: PMC8424963 DOI: 10.1186/s12872-021-02236-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Background Inflammation plays a key role in the development of atherosclerosis and in the pathogenesis of acute coronary syndrome (ACS). Leukocytes and leukocytes ratios were recognized as inflammatory markers in predicting the presence and severity of ACS. Methods This study aimed to investigate the diagnostic accuracy of neutrophil to lymphocyte ratio (NLR) and monocyte to lymphocyte ratio (MLR) with ACS. One hundred patients admitted to the Cardiac Center who were confirmed to have ACS and 100 healthy controls confirmed not to have ACS were enrolled in this study. ECG and troponin I test were used as gold standards to make sure that the participants with or without ACS. Total white blood cells (WBCs) count, NLR, and MLR values were estimated.
Results Total WBCs, neutrophil, and monocyte counts were significantly higher while lymphocyte counts were significantly lower in ACS patients than in the healthy controls (p < 0.001). NLR and MLR were significantly higher in ACS patients than in the healthy controls (p < 0.001). Among all the studied markers, NLR was found to be the strongest predictive marker of ACS (OR: 3.3, p < 0.001), whereas MLR was non-significant (p > 0.05). A cut-off value of 2.9 of NLR had 90% sensitivity and 88% specificity while 0.375 cut-off value of MLR had 79% sensitivity, 91% specificity for predicting ACS presence. Conclusions NLR is a simple, widely available, and inexpensive inflammatory marker which can be an auxiliary biomarker in the diagnosis of ACS with a cut-off value of 2.9 in our population.
Collapse
Affiliation(s)
- Ahmed Mohammed Shumilah
- Microbiology and Immunology Department, Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen.
| | - Arwa Mohammed Othman
- Microbiology and Immunology Department, Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen
| | - Anwar Kasim Al-Madhagi
- Microbiology and Immunology Department, Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen
| |
Collapse
|
6
|
Anwar S, Adhipireno P, Triwardhani R, Limijadi EKS. The Correlation between Serum Amyloid A, Mean Platelet Volume, and Creatine Kinase Myocardial B in Acute Coronary Syndrome. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.5922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Atherosclerosis causes acute myocardial necrosis and inflammation characterized by increased mean platelet volume (MPV) and serum amyloid A (SAA). Creatine Kinase Myocardial Band (CKMB) is known as myocardial necrosis marker commonly used in daily practice to help diagnosing acute coronary syndrome.
AIM: The purpose of this study was to determine the correlation between MPV, SAA, and CKMB in patients with acute coronary syndrome.
METHODS: An analytic observational study with a cross-sectional approach was conducted from May to July 2019. This study involved 32 patients with ACS at the Emergency Department of Dr Kariadi Public Hospital. The inclusion criteria of this study were patients with chest pain, aged 30–75 years, and normal body temperature while the exclusion criteria were malignancy, undergoing chemotherapy/radiation, renal failure, hypertension, and liver disease. Examination of CKMB was done using the spectrophotometry method, MPV value was measured using a hematology analyzer, and SAA level was measured using the ELISA method. Statistical test was done using Spearman correlation.
RESULTS: The median (min-max) of MPV and SAA values was 9.85 (2.78-11.7) fL and 40.454 (5.879–66.059) μg/ml, while the mean ± SD (min-max) value of CKMB was 115.47 ± 155.97 (10–608) U/L. The correlation coefficient between CKMB level with MPV and SAA levels were r = −0.244 (p = 0.179) and r = 0.442 (p = 0.011), respectively.
CONCLUSION: There was a significant positive moderate correlation between CKMB and SAA levels which could be used as a marker of acute inflammation in ACS, whereas inflammatory marker of MPV did not have a significant correlation.
Collapse
|
7
|
Faber J, Hvas AM, Kristensen SD, Grove EL, Adelborg K. Immature Platelets and Risk of Cardiovascular Events among Patients with Ischemic Heart Disease: A Systematic Review. Thromb Haemost 2020; 121:659-675. [PMID: 33302302 DOI: 10.1055/s-0040-1721386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Immature platelets are larger and may be more thrombogenic than mature platelets. This systematic review included studies on the association between mean platelet volume (MPV), immature platelet count (IPC), and immature platelet fraction (IPF) and the risk of major cardiovascular events (MACEs) in patients with acute coronary syndrome (ACS) or stable coronary artery disease (CAD). METHODS The literature search included studies in PubMed, Embase, Web of Science, and Cochrane Library. The review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Effect estimates that included multivariate adjusted odds ratios, relative risks, or hazard ratios were extracted. RESULTS Forty-two studies were identified. High MPV was positively associated with MACE in 20 of 26 studies of patients with ACS, four of five studies in patients with stable CAD, and in all six studies comprising a combined population with ACS and stable CAD. Using continuous models of MPV in patients with ACS, effect estimates varied from 0.90 (95% confidence interval [CI]: 0.95-1.03) to 1.66 (95% CI: 1.32-2.09). The strength of these associations was broadly similar among patients with stable CAD and in combined populations. Five studies investigated IPC or IPF as exposures and all reported positive associations with MACE among patients with ACS, stable CAD, or in combined populations. CONCLUSION This review demonstrated clear evidence for positive associations between measures of immature platelets and subsequent risk of MACE in acute and stable ischemic heart disease patients.
Collapse
Affiliation(s)
- Julie Faber
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Anne-Mette Hvas
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Steen Dalby Kristensen
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Erik Lerkevang Grove
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Kasper Adelborg
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| |
Collapse
|
8
|
Altered Gut Microbiota and Shift in Bacteroidetes between Young Obese and Normal-Weight Korean Children: A Cross-Sectional Observational Study. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6587136. [PMID: 32908903 PMCID: PMC7450312 DOI: 10.1155/2020/6587136] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 06/26/2020] [Accepted: 07/03/2020] [Indexed: 12/25/2022]
Abstract
Emerging data suggest that the gut microbiome is related to the pathophysiology of obesity. This study is aimed at characterizing the gut microbiota composition between obese and normal-weight Korean children aged 5-13. We collected fecal samples from 22 obese and 24 normal-weight children and performed 16S rRNA gene sequencing using the Illumina MiSeq platform. The relative abundance of the phylum Bacteroidetes was lower in the obese group than in the normal-weight group and showed a significant negative correlation with BMI z-score. Linear discriminative analysis (LDA) coupled with effect size measurement (LEfSe) analysis also revealed that the Bacteroidetes population drove the divergence between the groups. There was no difference in alpha diversity, but beta diversity was significantly different between the normal-weight and obese groups. The gut microbial community was linked to BMI z-score; blood biomarkers associated with inflammation and metabolic syndrome; and dietary intakes of niacin, sodium, vitamin B6, and fat. The gut microbiota of the obese group showed more clustering of genera than that of the normal-weight group. Phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) analysis revealed that the functions related to carbohydrate and lipid metabolism in the microbiota were more enriched in the normal-weight group than in the obese group. Our data may contribute to the understanding of the gut microbial structure of young Korean children in relation to obesity. These findings suggest that Bacteroidetes may be a potential therapeutic target in pediatric obesity.
Collapse
|
9
|
Buyuk GN, Oskovi-Kaplan ZA, Oksuzoglu A, Keskin HL. Mean Platelet Volume is Affected in Term Fetuses with Intrauterine Growth Restriction. Z Geburtshilfe Neonatol 2020; 225:70-73. [PMID: 32590873 DOI: 10.1055/a-1177-1773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES The aim of our study was to analyze the mean platelet volume levels as a potential marker of altered placentation in intrauterine growth restriction (IUGR) cases. METHODS A total of 126 term singleton pregnant women with IUGR fetuses and 345 healthy pregnant controls were recruited and compared. RESULTS The mean platelet volume was significantly higher in the IUGR group (10.8±0.9 fl) than the control group (9.9±1.1 fl) (p=0.03). The mean hemoglobin was lower in IUGR group (11.3 (8.3-14.5) g/dl) than the control group (11.9 (8.2-13.0) g/dl) (p=0.04). The optimal cut-off MPV for prediction of IUGR was ≥10.55 fl, with a sensitivity of 59% and a specificity of 75%. CONCLUSION Increased MPV levels in term pregnant women may be particularly helpful for discrimination and prediction of high-risk fetuses when IUGR is suspected.
Collapse
Affiliation(s)
- Gul Nihal Buyuk
- Obstetrics and Gynecology, Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Z Asli Oskovi-Kaplan
- Obstetrics and Gynecology, Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Aysegul Oksuzoglu
- Obstetrics and Gynecology, Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - H Levent Keskin
- Obstetrics and Gynecology, Ministry of Health Ankara City Hospital, Ankara, Turkey
| |
Collapse
|
10
|
Baccini V, Geneviève F, Jacqmin H, Chatelain B, Girard S, Wuilleme S, Vedrenne A, Guiheneuf E, Toussaint-Hacquard M, Everaere F, Soulard M, Lesesve JF, Bardet V. Platelet Counting: Ugly Traps and Good Advice. Proposals from the French-Speaking Cellular Hematology Group (GFHC). J Clin Med 2020; 9:jcm9030808. [PMID: 32188124 PMCID: PMC7141345 DOI: 10.3390/jcm9030808] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/12/2020] [Accepted: 03/12/2020] [Indexed: 12/25/2022] Open
Abstract
Despite the ongoing development of automated hematology analyzers to optimize complete blood count results, platelet count still suffers from pre-analytical or analytical pitfalls, including EDTA-induced pseudothrombocytopenia. Although most of these interferences are widely known, laboratory practices remain highly heterogeneous. In order to harmonize and standardize cellular hematology practices, the French-speaking Cellular Hematology Group (GFHC) wants to focus on interferences that could affect the platelet count and to detail the verification steps with minimal recommendations, taking into account the different technologies employed nowadays. The conclusions of the GFHC presented here met with a "strong professional agreement" and are explained with their rationale to define the course of actions, in case thrombocytopenia or thrombocytosis is detected. They are proposed as minimum recommendations to be used by each specialist in laboratory medicine who remains free to use more restrictive guidelines based on the patient’s condition.
Collapse
Affiliation(s)
- Véronique Baccini
- Laboratoire d’hématologie, CHU de la Guadeloupe, INSERM UMR S_1134, 97159 Pointe-à-Pitre, France
- Correspondence:
| | - Franck Geneviève
- Fédération Hospitalo-Universitaire ‘Grand Ouest Against Leukemia’ (FHU GOAL), 49033 Angers, France;
| | - Hugues Jacqmin
- Université Catholique de Louvain, CHU UCL Namur, Laboratoire d’hématologie, Namur Thrombosis and Hemostasis Center, 5530 Yvoir, Belgium; (H.J.); (B.C.)
| | - Bernard Chatelain
- Université Catholique de Louvain, CHU UCL Namur, Laboratoire d’hématologie, Namur Thrombosis and Hemostasis Center, 5530 Yvoir, Belgium; (H.J.); (B.C.)
| | - Sandrine Girard
- Hospices Civils de Lyon, Centre de biologie et pathologie Est, Service d’hématologie biologique, 69500 Bron, France;
| | - Soraya Wuilleme
- Laboratoire d’Hématologie, Institut de Biologie, CHU de Nantes; 44093 Nantes CEDEX, France;
| | - Aurélie Vedrenne
- Service de biologie clinique, Hôpital Foch, 92150 Suresnes, France;
| | - Eric Guiheneuf
- Service d’Hématologie Biologique, CHU Amiens-Picardie, 80054 Amiens CEDEX, France;
| | | | | | - Michel Soulard
- Plateau technique d’hématologie, Laboratoire Biogroup, 92300 Levallois-Perret, France;
| | | | - Valérie Bardet
- Service d’Hématologie-Immunologie-Transfusion, CHU Ambroise Paré, INSERM UMR 1184, AP-HP, Université Paris Saclay, 92100 Boulogne-Billancourt, France;
| |
Collapse
|
11
|
Abstract
Abstract
Reticulated platelets are immature platelets freshly released from the bone marrow into the circulation and contain vestigial amounts of ribonucleic acid. Thus, they can serve as an indicator for the activity of thrombopoiesis. Despite the current lack of a standardized reference method, two types of hematology analyzers have incorporated a fully automated measurement of reticulated platelets. The “immature platelet fraction” (IPF; Sysmex XE-/XN-series) has some clinical utility in the differential diagnosis of thrombocytopenia. This is less clear for “reticulated platelets” (retPLT; Abbott CELL-DYN Sapphire/Alinity HQ). The usefulness of these parameters in the prediction of platelet recovery after chemotherapy or stem cell transplantation and as a decision aid for platelet transfusions has not been unequivocally confirmed. Recent findings have shown an association of reticulated platelets with an adverse risk in patients with coronary artery disease and stroke as well as resistance to anti-platelet therapy. Furthermore, a role of reticulated platelets for the prediction of sepsis was indicated. However, validation in larger prospective trials is necessary to establish the clinical benefit of reticulated platelets in these conditions. This review gives an overview of the available analytical methods and summarizes the current knowledge regarding the clinical application of reticulated platelets.
Collapse
Affiliation(s)
- Lisa Meintker
- Department of Medicine 5 for Hematology and Oncology , University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg , Erlangen , Germany
| | - Stefan W. Krause
- Department of Medicine 5 for Hematology and Oncology , University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg , Erlangen , Germany
| |
Collapse
|
12
|
Sweet dreams: How mini-invasive surgery tackles obstructive sleep apnea. Biomed J 2019; 42:75-79. [PMID: 31130250 PMCID: PMC6541887 DOI: 10.1016/j.bj.2019.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 11/20/2022] Open
Abstract
In this issue of the Biomedical Journal we uncover how the discovery of tyrosine phosphorylation thirty years ago led to the recent development of potent cancer drugs. Furthermore we learn about the state of the art of surgery for obstructive sleep apnea and how modern automated hematology could be used to detect various pathologies. Finally we discuss the risk factors for hospital-acquired Clostridium difficile infection and how to minimize ultrasonic motor-induced magnetic resonance imaging artifacts.
Collapse
|