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Costa RM, Estevinho F, Eremina YO. Early diagnosis of severe illness in an outpatient - the Sysmex XN's neutrophil reactivity parameter. Clin Chem Lab Med 2024; 62:e178-e180. [PMID: 38353171 DOI: 10.1515/cclm-2023-1406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/28/2024] [Indexed: 06/25/2024]
Affiliation(s)
- Ruben M Costa
- Clinical Pathology Department, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, E.P.E., Matosinhos, Portugal
| | - Fernanda Estevinho
- Medical Oncology Department, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, E.P.E., Matosinhos, Portugal
| | - Yuliana O Eremina
- Clinical Pathology Department, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, E.P.E., Matosinhos, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal
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Formenti P, Isidori L, Pastori S, Roccaforte V, Mantovani EA, Iezzi M, Menozzi A, Panella R, Galimberti A, Brenna G, Umbrello M, Pezzi A, Vetrone F, Sabbatini G, Gotti M. A Secondary Retrospective Analysis of the Predictive Value of Neutrophil-Reactive Intensity (NEUT-RI) in Septic and Non-Septic Patients in Intensive Care. Diagnostics (Basel) 2024; 14:821. [PMID: 38667467 PMCID: PMC11049356 DOI: 10.3390/diagnostics14080821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Effective identification and management in the early stages of sepsis are critical for achieving positive outcomes. In this context, neutrophil-reactive intensity (NEUT-RI) emerges as a promising and easily interpretable parameter. This study aimed to assess the predictive value of NEUT-RI in diagnosing sepsis and to evaluate its prognostic significance in distinguishing 28-day mortality outcomes. MATERIALS This study is a secondary, retrospective, observational analysis. Clinical data upon ICU admission were collected. We enrolled septic patients and a control group of critically ill patients without sepsis criteria. The patients were divided into subgroups based on renal function for biomarker evaluation with 28-day outcomes reported for septic and non-septic patients. RESULTS A total of 200 patients were included in this study. A significant difference between the "septic" and "non-septic" groups was detected in the NEUT-RI plasma concentration (53.80 [49.65-59.05] vs. 48.00 [46.00-49.90] FI, p < 0.001, respectively). NEUT-RI and procalcitonin (PCT) distinguished between not complicated sepsis and septic shock (PCT 1.71 [0.42-12.09] vs. 32.59 [8.83-100.00], <0.001 and NEUT-RI 51.50 [47.80-56.30] vs. 56.20 [52.30-61.92], p = 0.005). NEUT-RI, PCT, and CRP values were significantly different in patients with "renal failure". NEUT-RI and PCT at admission in the ICU in the septic group were higher in patients who died (58.80 [53.85-73.10] vs. 53.05 [48.90-57.22], p = 0.005 and 39.56 [17.39-83.72] vs. 3.22 [0.59-32.32], p = 0.002, respectively). Both NEUT-RI and PCT showed a high negative predictive value and low positive predictive value. CONCLUSIONS The inflammatory biomarkers assessed in this study offer valuable support in the early diagnosis of sepsis and could have a possible role in anticipating the outcome. NEUT-RI elevation appears particularly promising for early sepsis detection and severity discrimination upon admission.
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Affiliation(s)
- Paolo Formenti
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Letizia Isidori
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Stefano Pastori
- S.C. Analisi Chimico Cliniche e Microbiologiche, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (S.P.)
| | - Vincenzo Roccaforte
- S.C. Analisi Chimico Cliniche e Microbiologiche, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (S.P.)
| | - Elena Alessandra Mantovani
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Massimiliano Iezzi
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milano, Italy (A.M.)
| | - Alessandro Menozzi
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milano, Italy (A.M.)
| | - Rossella Panella
- S.C. Analisi Chimico Cliniche e Microbiologiche, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (S.P.)
| | - Andrea Galimberti
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Giovanni Brenna
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Michele Umbrello
- Department of Intensive Care, New Hospital of Legnano (Ospedale Nuovo di Legnano), 20025 Legnano, Italy;
| | - Angelo Pezzi
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Francesco Vetrone
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Giovanni Sabbatini
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
| | - Miriam Gotti
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy; (L.I.); (A.G.)
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Wiwe EF, Kofoed IK, Dufréchou MJF, Philipsen JP, Lemvig B, Rasmussen KL, Smith J, Hillig T. Neutrophil Reactivity Intensity and misclassification of immature granulocytes. Int J Lab Hematol 2024; 46:312-321. [PMID: 37985128 DOI: 10.1111/ijlh.14204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/29/2023] [Indexed: 11/22/2023]
Abstract
INTRODUCTION Immature granulocyte percentage (IG%) is an important biomarker for infection control. We observed spurious cases where the IG% was dramatically underestimated on the automated Sysmex XN-series hehmatology analyzer compared with manual differential. These cases were associated with high values of "Neutrophil Reactivity Intensity" (NEUT-RI), which should reflect the metabolic activity of the neutrophils. METHODS We conducted a three-stage study to evaluate whether NEUT-RI could be utilized to screen for misclassified IG% results defined as the manual differential estimating a 10 percentage points higher IG% compared with the automated Sysmex differential. First, 124 patient samples were selected for 800-cell manual smear analysis based on their NEUT-RI values and compared with the automatic Sysmex IG% results. Next, 11 098 routine 110-cell manual smear analyses were compared with the corresponding Sysmex IG% results. Finally, during a 19-day period 160 additional patient samples underwent smear based on NEUT-RI values ≥56 fluorescence intensity (FI) to screen for misclassified results beyond our current smear practice. RESULTS NEUT-RI ≥56 predicted IG% misclassification with 91% sensitivity and 88% specificity, but primarily when the internal Sysmex flag "Abnormal WBC Scattergram" was present. 90.1% of misclassified results were identified by this flag. Beyond our existing smear rules including this flag, NEUT-RI ≥56 FI had a positive predictive value below 1%. CONCLUSION Both NEUT-RI and the internal Sysmex flag "Abnormal WBC Scattergram" work well to identify cases of IG% misclassification. However, in our setting NEUT-RI ≥56 FI had no meaningful additional predictive capacity to identify misclassifications beyond our current smear rules.
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Affiliation(s)
- Elias Frost Wiwe
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Isabella Katarina Kofoed
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Technology, Faculty of Health and Technology, University College Copenhagen, Copenhagen, Denmark
| | - Muriel Julie Falk Dufréchou
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Technology, Faculty of Health and Technology, University College Copenhagen, Copenhagen, Denmark
| | - Jens Peter Philipsen
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Birthe Lemvig
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Katrine Laura Rasmussen
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Julie Smith
- Department of Technology, Faculty of Health and Technology, University College Copenhagen, Copenhagen, Denmark
| | - Thore Hillig
- Department of Clinical Biochemistry, Nordsjaellands Hospital, University of Copenhagen, Copenhagen, Denmark
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Fujimaki K, Hummel K, Magonde I, Dammert K, Hamaguchi Y, Mintzas K, Saker J, Valina O, Otte KM. Performance evaluation of the new Sysmex XR-Series haematology analyser. Pract Lab Med 2024; 39:e00370. [PMID: 38404527 PMCID: PMC10884972 DOI: 10.1016/j.plabm.2024.e00370] [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: 06/30/2023] [Revised: 02/06/2024] [Accepted: 02/14/2024] [Indexed: 02/27/2024] Open
Abstract
Background The new XR-Series haematology analyser from Sysmex provides increased throughput and automation, along with a new reagent in WDF channel for optimised WBC differential. Methods An analytical performance study for the XR analyser was conducted to evaluate the WDF channel parameters in comparison to the instrument specifications. Additionally, 7460 samples were measured on XR and XN analysers to compare selected parameters and flags, and 930 randomly selected samples were further evaluated with microscopy. Results All investigated aspects of the analytical performance study for the XR fell within the manufacturer specifications. The correlation coefficients between the two systems for the parameters tested were greater than 0.983 for the main CBC and DIFF parameters, greater than 0.909 for the Extended Inflammation Parameters, and greater than 0.932 for the parameters used in the workflow rulesets of the Extended IPU. Similarly high sensitivities for the detection of abnormal cells were observed for the 'Blasts/Abn Lympho?' flag (XN: 100%, XR: 99.0%) and WPC abnormal flags ('Blasts?' or 'Abn Lympho?') (XN: 97.0%, XR: 96.0%). XN with WPC channel had a 26% reduction of false positive smears compared to XR with 22% reduction, a statistically non-significant difference. Conclusion The XR analyser had very good analytical performance, and highly comparable results to the predecessor XN analyser in all investigated parameters, flags and workflow aspects.
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Ho SF, Tan SJ, Mazlan MZ, Iberahim S, Lee YX, Hassan R. Exploring Extended White Blood Cell Parameters for the Evaluation of Sepsis among Patients Admitted to Intensive Care Units. Diagnostics (Basel) 2023; 13:2445. [PMID: 37510189 PMCID: PMC10378205 DOI: 10.3390/diagnostics13142445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/08/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Sepsis is a major cause of mortality and morbidity in intensive care units. This case-control study aimed to investigate the haematology cell population data and extended inflammatory parameters for sepsis management. The study included three groups of patients: sepsis, non-sepsis, and healthy controls. Patients suspected of having sepsis underwent a Sequential Organ Failure Assessment (SOFA) evaluation and had blood drawn for blood cultures, complete peripheral blood counts (CBC), and measurements of various markers such as C-reactive protein (CRP), procalcitonin (PCT), and interleukin-6 (IL-6). We observed significant changes in numerous CBC parameters and extended inflammation parameters (EIPs), in addition to significant biochemical analysis markers CRP and IL-6 in sepsis cohorts. Multiple logistic regression analyses showed that combining different CBC parameters and EIPs were effective to profile these patients. Two different models have been developed using white blood cell counts and their extended parameters. Our findings indicate that the absolute counts of white blood cells, and the EIPs which reflect their activation states, are important for the prediction and assessment of sepsis, as the body responds to an insult that triggers an immune response. In an emergency situation, having timely updates on patient conditions becomes crucial for guiding the management process. Identifying trends in these specific patient groups will aid early diagnosis, complementing clinical signs and symptoms, especially as CBC is the most commonly ordered test in a diagnostic workup.
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Affiliation(s)
- Sook Fong Ho
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Swee Jin Tan
- Sysmex Asia Pacific Pte Ltd., Singapore 528735, Singapore
| | - Mohd Zulfakar Mazlan
- Department of Anaesthesiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Salfarina Iberahim
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Ying Xian Lee
- Sysmex Asia Pacific Pte Ltd., Singapore 528735, Singapore
| | - Rosline Hassan
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
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Mantovani EMA, Formenti P, Pastori S, Roccaforte V, Gotti M, Panella R, Galimberti A, Costagliola R, Vetrone F, Umbrello M, Pezzi A, Sabbatini G. The Potential Role of Neutrophil-Reactive Intensity (NEUT-RI) in the Diagnosis of Sepsis in Critically Ill Patients: A Retrospective Cohort Study. Diagnostics (Basel) 2023; 13:diagnostics13101781. [PMID: 37238265 DOI: 10.3390/diagnostics13101781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
The diagnosis of sepsis is often difficult and belated, substantially increasing mortality in affected patients. Its early identification allows for us to choose the most appropriate therapies in the shortest time, improving patients' outcomes and eventually their survival. Since neutrophil activation is an indicator of an early innate immune response, the aim of the study was to evaluate the role of Neutrophil-Reactive Intensity (NEUT-RI), which is an indicator of their metabolic activity, in the diagnosis of sepsis. Data from 96 patients consecutively admitted to the Intensive Care Unit (ICU) were retrospectively analyzed (46 patients with and 50 without sepsis). Patients with sepsis were further divided between sepsis and septic shock according to the severity of the illness. Patients were subsequently classified according to renal function. For the diagnosis of sepsis, NEUT-RI showed an AUC of >0.80 and a better negative predictive value than Procalcitonin (PCT) and C-reactive protein (CRP) (87.4% vs. 83.9% and 86.6%, p = 0.038). Unlike PCT and CRP, NEUT-RI did not show a significant difference within the "septic" group between patients with normal renal function and those with renal failure (p = 0.739). Similar results were observed among the "non-septic" group (p = 0.182). The increase in NEUT-RI values could be useful in the early ruling-out of sepsis, and it does not appear to be influenced by renal failure. However, NEUT-RI has not proved to be efficient in discriminating the severity of sepsis at the time of admission. Larger, prospective studies are needed to confirm these results.
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Affiliation(s)
| | - Paolo Formenti
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Stefano Pastori
- S.C. Analisi Chimico Cliniche e Microbiologiche, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Vincenzo Roccaforte
- S.C. Analisi Chimico Cliniche e Microbiologiche, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Miriam Gotti
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Rossella Panella
- S.C. Analisi Chimico Cliniche e Microbiologiche, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Andrea Galimberti
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Roberto Costagliola
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Francesco Vetrone
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Michele Umbrello
- S.C. Anestesia e Rianimazione II, ASST Santi Paolo e Carlo, Ospedale San Carlo, 20148 Milan, Italy
| | - Angelo Pezzi
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
| | - Giovanni Sabbatini
- S.C. Anestesia, Rianimazione e Terapia Intensiva, ASST Nord Milano, Ospedale Bassini, 20097 Cinisello Balsamo, Italy
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Kwiecień I, Rutkowska E, Gawroński K, Kulik K, Dudzik A, Zakrzewska A, Raniszewska A, Sawicki W, Rzepecki P. Usefulness of New Neutrophil-Related Hematologic Parameters in Patients with Myelodysplastic Syndrome. Cancers (Basel) 2023; 15:cancers15092488. [PMID: 37173954 PMCID: PMC10177198 DOI: 10.3390/cancers15092488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Myelodysplastic syndromes (MDS) are common malignant disorders with a poor prognosis. It is necessary to search for new rapid diagnostic methods to detect MDS patients with cytogenetic changes. The aim of the study was to assess new hematological neutrophil- and monocyte- related parameters I then bone marrow of MDS patient with and without cytogenetic changes. A total of 45 patients with MDS, including 17 patients with cytogenetic changes, were examined. The study was conducted using the Sysmex XN-Series hematological analyzer. New neutrophil and monocyte parameters, such as immature granulocytes (IG), neutrophil reactivity intensity (NEUT-RI), neutrophil granularity intensity (NEUT-GI), neutrophil size (NE-FSC) and neutrophil/monocyte data relating to granularity, activity and volume (NE-WX/MO-WX, NE-WY/MO-WY, NE-WZ/MO-WZ, MO-X, MO-Y, MO-Z) were evaluated. We observed higher median proportions of NE-WX, NE-WY, NE-WZ, and IG counts in MDS patients with cytogenetic changes than in patients without cytogenetic changes. The NE-FSC parameter was lower in MDS patients with cytogenetic changes than in patients without cytogenetic changes. The combination of new neutrophil parameters was found to be a new successful approach in distinguishing MDS patients with cytogenetic changes from patients without cytogenetic changes. It appears that there may be unique neutrophil parameter signatures associated with an underlying mutation.
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Affiliation(s)
- Iwona Kwiecień
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Elżbieta Rutkowska
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Krzysztof Gawroński
- Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Katarzyna Kulik
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Alicja Dudzik
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Agata Zakrzewska
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Agata Raniszewska
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Waldemar Sawicki
- Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
| | - Piotr Rzepecki
- Department of Internal Medicine and Hematology, Military Institute of Medicine-National Research Institute, Szaserów 128 Street, 04-141 Warsaw, Poland
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Kowalska-Kępczyńska A, Mleczko M, Domerecka W, Krasowska D, Donica H. Assessment of Immune Cell Activation in Pemphigus. Cells 2022; 11:cells11121912. [PMID: 35741041 PMCID: PMC9221494 DOI: 10.3390/cells11121912] [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: 05/09/2022] [Revised: 06/01/2022] [Accepted: 06/11/2022] [Indexed: 11/29/2022] Open
Abstract
(1) Background: Pemphigus is a blistering autoimmune disease of the skin and/or mucous membranes, characterised by the presence of specific autoantibodies directed against structural proteins of the human skin. Recent reports indicate that new haematological parameters, termed Extended Inflammation Parameters (EIP), can be used to assess the activation of immune cells during active inflammation. These include parameters assessing both neutrophil activation (NEUT-RI, NEUT-GI) and the number of activated lymphocytes (RE-LYMP). The aim of this study was to investigate the relationship between changes in NEUT-RI, NEUT-GI and RE-LYMP and the disease activity in patients with pemphigus. (2) Results: The study involved 32 patients with diagnosed different types of pemphigus. Neutrophil activation parameters (NEUT-RI and NEUT-GI) and lymphocytes (RE-LYMP) were significantly higher in these patients compared to the parameters in healthy participants (respectively p = 0.0127, p = 0.0011 and p = 0.0033). The increased quantity of activated lymphocytes (RE-LYMP) also correlated significantly with the extent of skin and/or mucosal lesions in patients assessed by the PDAI scale (p < 0.02). (3) Conclusions: The NEUT-RI, NEUT-GI and RE-LYMP parameters proved to be appropriate markers of inflammation severity in pemphigus, also in relation to local lesions, which was not possible with the inflammation markers (CRP, ESR) used so far on a routine basis.
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Affiliation(s)
- Anna Kowalska-Kępczyńska
- Department of Biochemical Diagnostics, Chair of Laboratory Diagnostics, Medical University of Lublin, 20-081 Lublin, Poland;
- Correspondence:
| | - Mateusz Mleczko
- Chair and Department of Dermatology, Venerology and Paediatric Dermatology, Medical University of Lublin, 20-081 Lublin, Poland; (M.M.); (D.K.)
| | - Weronika Domerecka
- Chair and Department of Human Physiology, Medical University of Lublin, 20-080 Lublin, Poland;
| | - Dorota Krasowska
- Chair and Department of Dermatology, Venerology and Paediatric Dermatology, Medical University of Lublin, 20-081 Lublin, Poland; (M.M.); (D.K.)
| | - Helena Donica
- Department of Biochemical Diagnostics, Chair of Laboratory Diagnostics, Medical University of Lublin, 20-081 Lublin, Poland;
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Birindelli S, Tarkowski MS, Gallucci M, Schiuma M, Covizzi A, Lewkowicz P, Aloisio E, Falvella FS, Dolci A, Riva A, Galli M, Panteghini M. Definition of the Immune Parameters Related to COVID-19 Severity. Front Immunol 2022; 13:850846. [PMID: 35371011 PMCID: PMC8971756 DOI: 10.3389/fimmu.2022.850846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 02/23/2022] [Indexed: 01/08/2023] Open
Abstract
A relevant portion of patients with disease caused by the severe acute respiratory syndrome coronavirus 2 (COVID-19) experience negative outcome, and several laboratory tests have been proposed to predict disease severity. Among others, dramatic changes in peripheral blood cells have been described. We developed and validated a laboratory score solely based on blood cell parameters to predict survival in hospitalized COVID-19 patients. We retrospectively analyzed 1,619 blood cell count from 226 consecutively hospitalized COVID-19 patients to select parameters for inclusion in a laboratory score predicting severity of disease and survival. The score was derived from lymphocyte- and granulocyte-associated parameters and validated on a separate cohort of 140 consecutive COVID-19 patients. Using ROC curve analysis, a best cutoff for score of 30.6 was derived, which was associated to an overall 82.0% sensitivity (95% CI: 78–84) and 82.5% specificity (95% CI: 80–84) for detecting outcome. The scoring trend effectively separated survivor and non-survivor groups, starting 2 weeks before the end of the hospitalization period. Patients’ score time points were also classified into mild, moderate, severe, and critical according to the symptomatic oxygen therapy administered. Fluctuations of the score should be recorded to highlight a favorable or unfortunate trend of the disease. The predictive score was found to reflect and anticipate the disease gravity, defined by the type of the oxygen support used, giving a proof of its clinical relevance. It offers a fast and reliable tool for supporting clinical decisions and, most important, triage in terms of not only prioritization but also allocation of limited medical resources, especially in the period when therapies are still symptomatic and many are under development. In fact, a prolonged and progressive increase of the score can suggest impaired chances of survival and/or an urgent need for intensive care unit admission.
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Affiliation(s)
- Sarah Birindelli
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco, Milan, Italy
- *Correspondence: Sarah Birindelli,
| | - Maciej S. Tarkowski
- Department of Biomedical and Clinical Sciences, “Luigi Sacco”, University of Milan, Milan, Italy
| | - Marcello Gallucci
- Department of Psychology, University of Milano Bicocca, Milan, Italy
| | - Marco Schiuma
- Department of Infectious Diseases, Division III, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Alice Covizzi
- Department of Infectious Diseases, Division III, ASST Fatebenefratelli-Sacco, Milan, Italy
| | | | - Elena Aloisio
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco, Milan, Italy
| | | | - Alberto Dolci
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco, Milan, Italy
- Department of Biomedical and Clinical Sciences, “Luigi Sacco”, University of Milan, Milan, Italy
| | - Agostino Riva
- Department of Biomedical and Clinical Sciences, “Luigi Sacco”, University of Milan, Milan, Italy
- Department of Infectious Diseases, Division III, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Massimo Galli
- Department of Biomedical and Clinical Sciences, “Luigi Sacco”, University of Milan, Milan, Italy
- Department of Infectious Diseases, Division III, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Mauro Panteghini
- Clinical Pathology Unit, ASST Fatebenefratelli-Sacco, Milan, Italy
- Department of Biomedical and Clinical Sciences, “Luigi Sacco”, University of Milan, Milan, Italy
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10
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Lemkus L, Lawrie D, Vaughan J. The utility of extended differential parameters as a biomarker of bacteremia at a tertiary academic hospital in persons with and without HIV infection in South Africa. PLoS One 2022; 17:e0262938. [PMID: 35176042 PMCID: PMC8853519 DOI: 10.1371/journal.pone.0262938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/07/2022] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Extended differential parameters (EDPs) are generated with the automated differential count by Sysmex XN-series automated hematology analysers, and include the immature granulocyte count (IG%), the neutrophil fluorescent light intensity (NE-SFL) and the neutrophil fluorescent light distribution width (NE-WY). These have been proposed as early biomarkers of bacteremia. This study aimed to evaluate the NE-SFL, NE-WY and IG% in comparison to neutrophil CD64 (nCD64) expression (as a high quality sepsis biomarker) among patients with suspected bacterial sepsis at the Chris Hani Baragwanath Academic Hospital in Johannesburg, South Africa. METHODS A daily search of the laboratory information system identified samples submitted for a blood culture (BC) and a concurrent full blood count (FBC). Automated differential counts using a Sysmex XN-9000 haematology analyser and neutrophil CD64 expression by flow cytometry were assessed on the residual FBC samples. RESULTS A total of 151 samples were collected, of which 83 were excluded due to equivocal results with regards to the presence of bacterial infection. The remaining 68 samples included 23 with bacteremia, 28 with evidence of non-bacteremic bacterial infection, 13 with no evidence of bacterial infection and 4 with Tuberculosis. HIV status was documented in 90 of the patients, with a seropositivity rate of 57.8%. The EDPs were all significantly higher among patients with bacteremia as compared to those without bacterial infection, but on ROC curve analyses, only the NE-SFL showed good performance (AUC>0.8) for discriminating cases with bacteremia from those without bacterial infection at a cut-off value of 49.75. In comparison to the nCD64, the NE-SFL showed moderate agreement (kappa = 0.5). On stratification of the ROC analysis by HIV status, the NE-SFL showed superior performance among persons with HIV infection (AUC = 1), while the automated IG% showed better performance among the patients without HIV infection (AUC = 0.9). CONCLUSION In this study, EDPs showed differential performance as biomarkers for bacteremia according to HIV-status in the South African setting, with the most promising results seen with the NE-SFL and IG% parameters among people with and without HIV infection, respectively. Further assessment of these parameters without pre-selection of patients likely to have infection is required to further determine their clinical utility, particularly among patients with underlying inflammatory conditions or malignancy.
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Affiliation(s)
- Lauren Lemkus
- Department of Molecular Medicine and Haematology, University of the Witwatersrand, Johannesburg, South Africa
- National Health Laboratory Services, Johannesburg, South Africa
| | - Denise Lawrie
- Department of Molecular Medicine and Haematology, University of the Witwatersrand, Johannesburg, South Africa
- National Health Laboratory Services, Johannesburg, South Africa
| | - Jenifer Vaughan
- Department of Molecular Medicine and Haematology, University of the Witwatersrand, Johannesburg, South Africa
- National Health Laboratory Services, Johannesburg, South Africa
- * E-mail:
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11
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Haider RZ, Ujjan IU, Khan NA, Urrechaga E, Shamsi TS. Beyond the In-Practice CBC: The Research CBC Parameters-Driven Machine Learning Predictive Modeling for Early Differentiation among Leukemias. Diagnostics (Basel) 2022; 12:diagnostics12010138. [PMID: 35054304 PMCID: PMC8774626 DOI: 10.3390/diagnostics12010138] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 11/20/2022] Open
Abstract
A targeted and timely treatment can be a beneficial tool for patients with hematological emergencies (particularly acute leukemias). The key challenges in the early diagnosis of leukemias and related hematological disorders are their symptom-sharing nature and prolonged turnaround time as well as the expertise needed in reporting confirmatory tests. The present study made use of the potential morphological and immature fraction-related parameters (research items or cell population data) generated during complete blood cell count (CBC), through artificial intelligence (AI)/machine learning (ML) predictive modeling for early (at the pre-microscopic level) differentiation of various types of leukemias: acute from chronic as well as myeloid from lymphoid. The routine CBC parameters along with research CBC items from a hematology analyzer in the diagnosis of 1577 study subjects with hematological neoplasms were collected. The statistical and data visualization tools, including heat-map and principal component analysis (PCA,) helped in the evaluation of the predictive capacity of research CBC items. Next, research CBC parameter-driven artificial neural network (ANN) predictive modeling was developed to use the hidden trend (disease’s signature) by increasing the auguring accuracy of these potential morphometric parameters in differentiation of leukemias. The classical statistics for routine and research CBC parameters showed that as a whole, all study items are significantly deviated among various types of leukemias (study groups). The CPD parameter-driven heat-map gave clustering (separation) of myeloid from lymphoid leukemias, followed by the segregation (nodding) of the acute from the chronic class of that particular lineage. Furthermore, acute promyelocytic leukemia (APML) was also well individuated from other types of acute myeloid leukemia (AML). The PCA plot guided by research CBC items at notable variance vindicated the aforementioned findings of the CPD-driven heat-map. Through training of ANN predictive modeling, the CPD parameters successfully differentiate the chronic myeloid leukemia (CML), AML, APML, acute lymphoid leukemia (ALL), chronic lymphoid leukemia (CLL), and other related hematological neoplasms with AUC values of 0.937, 0.905, 0.805, 0.829, 0.870, and 0.789, respectively, at an agreeably significant (10.6%) false prediction rate. Overall practical results of using our ANN model were found quite satisfactory with values of 83.1% and 89.4.7% for training and testing datasets, respectively. We proposed that research CBC parameters could potentially be used for early differentiation of leukemias in the hematology–oncology unit. The CPD-driven ANN modeling is a novel practice that substantially strengthens the predictive potential of CPD items, allowing the clinicians to be confident about the typical trend of the “disease fingerprint” shown by these automated potential morphometric items.
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Affiliation(s)
- Rana Zeeshan Haider
- Baqai Institute of Hematology, Baqai Medical University, Karachi 75340, Pakistan
- National Institute of Blood Disease (NIBD), Karachi 75300, Pakistan
- Correspondence: ; Tel.: +92-343-507-1271
| | - Ikram Uddin Ujjan
- Department of Pathology, Liaquat University of Medical and Health Sciences, Jamshoro 76090, Pakistan;
| | - Najeed Ahmed Khan
- Department of Computer Science, NED University of Engineering and Technology, Karachi 75270, Pakistan;
| | - Eloisa Urrechaga
- Core Laboratory, Galdakao-Usansolo Hospital, 48960 Galdakao, Spain;
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12
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Kwiecień I, Rutkowska E, Kulik K, Kłos K, Plewka K, Raniszewska A, Rzepecki P, Chciałowski A. Neutrophil Maturation, Reactivity and Granularity Research Parameters to Characterize and Differentiate Convalescent Patients from Active SARS-CoV-2 Infection. Cells 2021; 10:cells10092332. [PMID: 34571981 PMCID: PMC8472477 DOI: 10.3390/cells10092332] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/25/2021] [Accepted: 09/03/2021] [Indexed: 01/08/2023] Open
Abstract
Studying the dynamics changes of neutrophils during innate immune response in coronavirus 2019 (COVID-19) can help understand the pathogenesis of this disease. The aim of the study was to assess the usefulness of new neutrophil activation parameters: Immature Granulocyte (IG), Neutrophil Reactivity Intensity (NEUT-RI), Neutrophil Granularity Intensity (NEUT-GI), and data relating to granularity, activity, and neutrophil volume (NE-WX, NE-WY, NE-WZ) available in hematology analyzers to distinguish convalescent patients from patients with active SARS-CoV-2 infection and healthy controls (HC). The study group consisted of 79 patients with a confirmed positive RT-PCR test for SARS-CoV2 infection, 71 convalescent patients, and 20 HC. We observed leukopenia with neutrophilia in patients with active infection compared to convalescents and HC. The IG median absolute count was higher in convalescent patients than in COVID-19 and HC (respectively, 0.08 vs. 0.03 vs. 0.02, p < 0.0001). The value of the NEUT-RI parameter was the highest in HC and the lowest in convalescents (48.3 vs. 43.7, p < 0.0001). We observed the highest proportion of NE-WX, NE-WY, and NE-WZ parameters in HC, without differences between the COVID-19 and convalescent groups. New neutrophil parameters can be useful tools to assess neutrophils’ activity and functionalities in the immune response during infection and recovery from COVID-19 disease.
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Affiliation(s)
- Iwona Kwiecień
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (E.R.); (K.K.); (A.R.)
- Correspondence:
| | - Elżbieta Rutkowska
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (E.R.); (K.K.); (A.R.)
| | - Katarzyna Kulik
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (E.R.); (K.K.); (A.R.)
| | - Krzysztof Kłos
- Department of Infectious Diseases and Allergology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (K.K.); (K.P.); (A.C.)
| | - Katarzyna Plewka
- Department of Infectious Diseases and Allergology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (K.K.); (K.P.); (A.C.)
| | - Agata Raniszewska
- Laboratory of Hematology and Flow Cytometry, Department of Internal Medicine and Hematology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (E.R.); (K.K.); (A.R.)
| | - Piotr Rzepecki
- Department of Internal Medicine and Hematology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland;
| | - Andrzej Chciałowski
- Department of Infectious Diseases and Allergology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland; (K.K.); (K.P.); (A.C.)
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Extended Inflammation Parameters (EIP) as Markers of Immune System Cell Activation in Psoriasis. Int J Inflam 2021; 2021:9216528. [PMID: 34234939 PMCID: PMC8219407 DOI: 10.1155/2021/9216528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/05/2021] [Indexed: 02/08/2023] Open
Abstract
Psoriasis is an inflammatory, autoimmune disease that affects approximately 2% of the population. The inflammation in psoriasis can be systemic, so despite a predominantly cutaneous manifestation, it also affects the internal organs. The diagnosis and monitoring of the disease are based on the clinical picture. To assess the disorders of other organs, additional tests need to be performed. Recently, the examination of blood morphology has been enriched with modern haematological parameters, i.e., Extended Inflammation Parameters (EIP), which include RE-LYMPH (activated lymphocytes), AS-LYMPH (antibody-producing B lymphocytes), and NEUT-RI and NEUT-GI (activated neutrophils). In the study, higher values of new haematological parameters were observed in individuals with psoriasis than in healthy controls. A higher EIP value was noted in the group of individuals with plaque psoriasis than in the group of individuals with psoriatic arthritis. Implementation of these parameters into routine laboratory analysis will likely make it possible to estimate the severity of the inflammation and improve its assessment.
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14
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Kubyshkin VA, Samokhodskaya LM, Korolev YM. THE ROLE OF MARKERS OF SYSTEMIC INFLAMMATORY RESPONSE IN THE POSTOPERATIVE PERIOD. REVIEW. SURGICAL PRACTICE 2021. [DOI: 10.38181/2223-2427-2021-1-30-38] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Despite all the achievements of modern surgery, the number of postoperative infectious complications in the world remains high. Their occurrence leads to a longer period of patients’ hospitalization, requires the use of additional medical and diagnostic measures, which ultimately leads to higher treatment costs and significant financial losses in the health care system. Therefore, it is important to identify postoperative complications at an early stage, even before the development of pronounced clinical symptoms, and to predict their possible development in a certain category of patients. For these purposes, scientists try to use various laboratory markers. In this paper, we analyzed both well-known indicators of the inflammatory response, such as: C-reactive protein, albumin, their ratio, procalcitonin and interleukin-6, and relatively new parameters that research teams are trying to apply for these purposes: neutrophil granularity intensity and neutrophil reactivity intensity, pancreatic stone protein and pancreatitis-associated protein. We tried to collect the most complete information available at the moment, evaluate the opinions of researchers, identify contradictions in their works and try to explain their cause. As a result, it turned out that even the markers of inflammation known for many years are not absolutely specific for postoperative infectious complications. We concluded that most of the laboratory parameters described in this article can be used to some extent in the early diagnosis of postoperative infectious complications, but if we want to obtain more complete information in this area of knowledge, it is necessary to conduct new largescale studies.
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Affiliation(s)
- V. A. Kubyshkin
- Federal State Budget Educational Institution of Higher Education M.V. Lomonosov Moscow State University, Faculty of Medicine (Lomonosov MSU)
| | - L. M. Samokhodskaya
- Federal State Budget Educational Institution of Higher Education M.V. Lomonosov Moscow State University, Faculty of Medicine (Lomonosov MSU); Medical Scientific Educational Centre, Lomonosov Moscow State University
| | - Yu. M. Korolev
- Federal State Budget Educational Institution of Higher Education M.V. Lomonosov Moscow State University, Faculty of Medicine (Lomonosov MSU)
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15
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Blomme S, Boeckx N, Brusselmans C, Claerhout H, Van Laer C. The integration of Sysmex XN-9100' WPC channel reflex testing in the detection of reactive versus malignant blood samples. Int J Lab Hematol 2020; 43:191-198. [PMID: 33001578 DOI: 10.1111/ijlh.13352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/30/2020] [Accepted: 09/08/2020] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Sysmex XN-9100™ (Sysmex, Kobe, Japan) system has an optional White Progenitor Cell (WPC) channel. While the White Differentiation (WDF) channel reports a combined flag for blasts/abnormal lymphocytes, WPC channel specifies flagging into a separate flag for each cell type or removes the flag entirely. Aim of this study was to evaluate the added value of this WPC channel in the detection of malignant samples. METHODS Routine blood samples analyzed on Sysmex XE-5000 with flagging for either blasts, abnormal lymphocytes, or atypical lymphocytes (n = 630) were selected for testing on Sysmex XN-9100, resulting in a reflex WPC analysis in 420 samples. All samples were microscopically evaluated with DI-60 digital cell imaging analyzer. RESULTS WPC reflex testing resulted in a suspect flag ("blasts" and/or "abnormal lymphocytes") in 334 samples, which was confirmed microscopically in 38% (128/334). In all true positive samples, WPC correctly classified the initial WDF flag in either "blasts" flag or "abnormal lymphocytes?" flag in 75%. Only 12% (50/420) of WDF "blasts/abnormal lymphocytes" positive samples became negative after WPC reflex testing. Subgroup analysis showed differences between the "pediatric" versus "adult" groups and the "hematological/chemotherapy" versus "nonhematological/nonchemotherapy" groups in specificity and smear reduction. CONCLUSION Overall, WPC reflex testing showed good sensitivity (99%); however, the specificity remains poor (29%). Using reflex WPC to the WDF channel resulted in a 12% reduction of the smear review rate. Although the WPC channel offers different interesting advantages, additional topics and a specific workflow should be applied to optimize the use of this channel.
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Affiliation(s)
- Siska Blomme
- Clinical Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Nancy Boeckx
- Clinical Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium.,Departement of Oncology, KU Leuven, Leuven, Belgium
| | - Caroline Brusselmans
- Clinical Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Helena Claerhout
- Clinical Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Christine Van Laer
- Clinical Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium.,Departement of Cardiovascular Sciences, Center for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium
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16
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Khartabil TA, de Frankrijker MM, de Rijke YB, Russcher H. The Sysmex XN-L (XN-350) hematology analyzer offers a compact solution for laboratories in niche diagnostics. Int J Lab Hematol 2020; 43:29-39. [PMID: 32949451 PMCID: PMC7891428 DOI: 10.1111/ijlh.13339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/07/2020] [Accepted: 08/18/2020] [Indexed: 11/03/2022]
Abstract
INTRODUCTION In 2015, Sysmex launched a new series of hematology analyzers (XN-L Series) designed to fulfill the needs of niche laboratories in areas such as pediatrics, dialysis, neurology, and oncology while providing a compact solution. In this study, we evaluate the whole blood and body fluid modes of one of these analyzers, the XN-350. METHODS A total of 300 residual EDTA samples were measured on the XN-350 in whole blood mode and the XN-1000 to evaluate method comparison, flagging sensitivity, repeatability, reproducibility, linearity, carryover, and stability. In addition, 191 samples were obtained and processed in body fluid mode which included, cerebrospinal fluid (CSF), continuous ambulatory peritoneal dialysis (CAPD), ascites, synovial, and pleural fluid to perform method comparison, repeatability, reproducibility, linearity, limit of quantitation, and carryover studies. RESULTS Strong agreement was shown between the XN-350 and XN-1000 for both whole blood and body fluid modes in results and flagging. Linearity results in both modes on the XN-350 showed a high R2 value (>.99). For WBC, RBC, HGB, and PLT, the carryover results were well within the predetermined criteria of ≤0.5% for whole blood and ≤0.3% for CSF. Repeatability and reproducibility were acceptable for both modes, and there were no significant deviations present in stability for whole blood. In addition, there was high agreement in all body fluid types evaluated. CONCLUSION The performance of the XN-350 is comparable to the XN-1000 in both whole blood and body fluid modes, making it a reliable alternative to larger analyzers for smaller, niche laboratories.
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Affiliation(s)
- Tania A Khartabil
- Department of Clinical Chemistry, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Magda M de Frankrijker
- Department of Clinical Chemistry, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Yolanda B de Rijke
- Department of Clinical Chemistry, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Henk Russcher
- Department of Clinical Chemistry, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
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17
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Shekhar R, Pai S, Srinivasan VK, Srinivas V, Adhikary R, Bhavana MV. Alterations in leucocyte cell population data in bacteraemia: A study from a tertiary care hospital in India. Int J Lab Hematol 2020; 43:e1-e4. [PMID: 32845052 DOI: 10.1111/ijlh.13327] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/22/2020] [Accepted: 08/05/2020] [Indexed: 01/21/2023]
Affiliation(s)
- Roshini Shekhar
- Hematopathology Division, Department of Laboratory Medicine, Manipal Hospital, Bengaluru, India
| | - Swati Pai
- Hematopathology Division, Department of Laboratory Medicine, Manipal Hospital, Bengaluru, India
| | - Vishrut K Srinivasan
- Hematopathology Division, Department of Laboratory Medicine, Manipal Hospital, Bengaluru, India
| | - Venkatappa Srinivas
- Hematopathology Division, Department of Laboratory Medicine, Manipal Hospital, Bengaluru, India
| | - Ranjeeta Adhikary
- Microbiology Division, Department of Laboratory Medicine, Manipal Hospital, Bengaluru, India
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Prodjosoewojo S, Riswari SF, Djauhari H, Kosasih H, van Pelt LJ, Alisjahbana B, van der Ven AJ, de Mast Q. A novel diagnostic algorithm equipped on an automated hematology analyzer to differentiate between common causes of febrile illness in Southeast Asia. PLoS Negl Trop Dis 2019; 13:e0007183. [PMID: 30870415 PMCID: PMC6435198 DOI: 10.1371/journal.pntd.0007183] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 03/26/2019] [Accepted: 01/23/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Distinguishing arboviral infections from bacterial causes of febrile illness is of great importance for clinical management. The Infection Manager System (IMS) is a novel diagnostic algorithm equipped on a Sysmex hematology analyzer that evaluates the host response using novel techniques that quantify cellular activation and cell membrane composition. The aim of this study was to train and validate the IMS to differentiate between arboviral and common bacterial infections in Southeast Asia and compare its performance against C-reactive protein (CRP) and procalcitonin (PCT). METHODOLOGY/PRINCIPAL FINDINGS 600 adult Indonesian patients with acute febrile illness were enrolled in a prospective cohort study and analyzed using a structured diagnostic protocol. The IMS was first trained on the first 200 patients and subsequently validated using the complete cohort. A definite infectious etiology could be determined in 190 of 463 evaluable patients (41%), including 89 arboviral infections (81 dengue and 8 chikungunya), 94 bacterial infections (26 murine typhus, 16 salmonellosis, 6 leptospirosis and 46 cosmopolitan bacterial infections), 3 concomitant arboviral-bacterial infections, and 4 malaria infections. The IMS detected inflammation in all but two participants. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the IMS for arboviral infections were 69.7%, 97.9%, 96.9%, and 77.3%, respectively, and for bacterial infections 77.7%, 93.3%, 92.4%, and 79.8%. Inflammation remained unclassified in 19.1% and 22.5% of patients with a proven bacterial or arboviral infection. When cases of unclassified inflammation were grouped in the bacterial etiology group, the NPV for bacterial infection was 95.5%. IMS performed comparable to CRP and outperformed PCT in this cohort. CONCLUSIONS/SIGNIFICANCE The IMS is an automated, easy to use, novel diagnostic tool that allows rapid differentiation between common causes of febrile illness in Southeast Asia.
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Affiliation(s)
- Susantina Prodjosoewojo
- Health Research Unit, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
- Department of Internal Medicine, Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Silvita F. Riswari
- Health Research Unit, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Hofiya Djauhari
- Health Research Unit, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Herman Kosasih
- Indonesia Research Partnership of Infectious Disease (INA-RESPOND), Jakarta, Indonesia
| | - L. Joost van Pelt
- Department of Laboratory Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - Bachti Alisjahbana
- Health Research Unit, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
- Department of Internal Medicine, Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Andre J. van der Ven
- Department of Internal Medicine, Radboud Center for Infectious Diseases, Radboud university medical center, Nijmegen, The Netherlands
| | - Quirijn de Mast
- Department of Internal Medicine, Radboud Center for Infectious Diseases, Radboud university medical center, Nijmegen, The Netherlands
- * E-mail:
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Changes in novel haematological parameters following thermal injury: A prospective observational cohort study. Sci Rep 2017; 7:3211. [PMID: 28607467 PMCID: PMC5468303 DOI: 10.1038/s41598-017-03222-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/24/2017] [Indexed: 12/15/2022] Open
Abstract
The mortality caused by sepsis is high following thermal injury. Diagnosis is difficult due to the ongoing systemic inflammatory response. Previous studies suggest that cellular parameters may show promise as diagnostic markers of sepsis. The aim of this study was to evaluate the effect of thermal injury on novel haematological parameters and to study their association with clinical outcomes. Haematological analysis was performed using a Sysmex XN-1000 analyser on blood samples acquired on the day of the thermal injury to 12 months post-injury in 39 patients (15–95% TBSA). Platelet counts had a nadir at day 3 followed by a rebound thrombocytosis at day 21, with nadir values significantly lower in septic patients. Measurements of extended neutrophil parameters (NEUT-Y and NEUT-RI) demonstrated that septic patients had significantly higher levels of neutrophil nucleic acid content. A combination of platelet impedance count (PLT-I) and NEUT-Y at day 3 post-injury exhibited good discriminatory power for the identifying septic patients (AUROC = 0.915, 95% CI [0.827, 1.000]). Importantly, the model had improved performance when adjusted for mortality with an AUROC of 0.974 (0.931, 1.000). A combination of PLT-I and NEUT-Y show potential for the early diagnosis of sepsis post-burn injury. Importantly, these tests can be performed rapidly and require a small volume of whole blood highlighting their potential utility in clinical practice.
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Henriot I, Launay E, Boubaya M, Cremet L, Illiaquer M, Caillon H, Desjonquères A, Gillet B, Béné MC, Eveillard M. New parameters on the hematology analyzer XN-10 (SysmexTM) allow to distinguish childhood bacterial and viral infections. Int J Lab Hematol 2016; 39:14-20. [DOI: 10.1111/ijlh.12562] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 07/11/2016] [Indexed: 12/11/2022]
Affiliation(s)
- I. Henriot
- Hematology Biology Department; Nantes University Hospital; Nantes France
| | - E. Launay
- Department of Pediatrics; Nantes University Hospital; Nantes France
| | - M. Boubaya
- Clinical Research Department; Hôpitaux Universitaires Paris-Seine-Saint-Denis; Hôpital Avicenne, AP-HP; Bobigny France
| | - L. Cremet
- Bacteriology Department; Nantes University Hospital; Nantes France
| | - M. Illiaquer
- Virology Department; Nantes University Hospital; Nantes France
| | - H. Caillon
- Biochemistry Department; Nantes University Hospital; Nantes France
| | - A. Desjonquères
- Hematology Biology Department; Nantes University Hospital; Nantes France
| | - B. Gillet
- Hematology Biology Department; Nantes University Hospital; Nantes France
| | - M. C. Béné
- Hematology Biology Department; Nantes University Hospital; Nantes France
| | - M. Eveillard
- Hematology Biology Department; Nantes University Hospital; Nantes France
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Cornet E, Mullier F, Despas N, Jacqmin H, Geara C, Boubaya M, Chatelain B, Troussard X. Evaluation and optimization of the extended information process unit (E-IPU) validation module integrating the sysmex flag systems and the recommendations of the French-speaking cellular hematology group (GFHC). Scandinavian Journal of Clinical and Laboratory Investigation 2016; 76:465-71. [PMID: 27347841 DOI: 10.1080/00365513.2016.1199049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The French-Speaking Cellular Haematology Group (GFHC) recently published criteria for microscopic analysis of a blood smears when a hemogram is requested. In order to evaluate and improve these recommendations using an XN (Sysmex) analyzer, we assessed 31,836 samples categorized into two sub-groups of patients either receiving or not receiving care in the clinical hematology/oncology departments of two university hospitals. By combining the manufacturer's recommendations and the GFHC recommendations, 21.3% of samples had a positive review flag in phase 1 of our study (17,991 samples). In phase 2 (13,845 samples), increasing the immature granulocytes (IG) percentage from 5-10% as a review trigger threshold, and ignoring slides with isolated flags 'PLT HIGH' (thrombocytosis) or 'MCV LOW' (microcytosis) or 'Blast/Abn Lymph and Atypical Lymph' (blast cells/abnormal lymphocytes and atypical lymphocytes) (in the absence of abnormal cells on a previous blood smear within 72 h), enabled us to significantly reduce the number of slides reviewed from 21.3-15.0% (p < 0.0001), without loss of clinical value. This decrease occurred in both sub-groups (hematology 48.7-38.0%, non-hematology 18.3-11.7%, p < 0.0001). In conclusion, the application of the GFHC criteria adapted to XN analyzers has enabled us to optimize the hematology laboratory processes, and thus reduce the production costs and the turnaround time of hemogram results.
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Affiliation(s)
| | - François Mullier
- b Haematology Laboratory , Namur Thrombosis and Haemostasis Center (NTHC) , Namur Research Institute for Life Sciences (NARILIS), CHU UCL Namur, Université Catholique de Louvain , Belgium
| | - Noemie Despas
- b Haematology Laboratory , Namur Thrombosis and Haemostasis Center (NTHC) , Namur Research Institute for Life Sciences (NARILIS), CHU UCL Namur, Université Catholique de Louvain , Belgium
| | - Hugues Jacqmin
- b Haematology Laboratory , Namur Thrombosis and Haemostasis Center (NTHC) , Namur Research Institute for Life Sciences (NARILIS), CHU UCL Namur, Université Catholique de Louvain , Belgium
| | - Carole Geara
- a CHU CAEN - Laboratory of Haematology , Caen , France
| | | | - Bernard Chatelain
- b Haematology Laboratory , Namur Thrombosis and Haemostasis Center (NTHC) , Namur Research Institute for Life Sciences (NARILIS), CHU UCL Namur, Université Catholique de Louvain , Belgium
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