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  1. Article: A Persistent Additional Fraction on Capillary Zone Electrophoresis with Negative Immunofixation Electrophoresis: Paraproteinemia or Pseudoparaproteinemia?

    Eeckhout, Katrien / Van Cotthem, Karin / Van Hoof, Viviane / Guerti, Khadija

    The journal of applied laboratory medicine

    2020  Volume 6, Issue 3, Page(s) 790–794

    MeSH term(s) Electrophoresis, Capillary ; Humans ; Immunoelectrophoresis ; Paraproteinemias/diagnosis
    Language English
    Publishing date 2020-09-18
    Publishing country England
    Document type Journal Article
    ISSN 2576-9456
    ISSN 2576-9456
    DOI 10.1093/jalm/jfaa085
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Skeletal muscle biomarkers in heart disease.

    Van Hoof, Viviane

    Biomarkers in medicine

    2012  Volume 6, Issue 1, Page(s) 5–8

    MeSH term(s) Biomarkers/metabolism ; Cell Membrane/metabolism ; Clinical Chemistry Tests/methods ; Clinical Chemistry Tests/standards ; Heart Diseases/metabolism ; Heart Diseases/pathology ; Humans ; Hypoxia/metabolism ; Muscle, Skeletal/metabolism ; Necrosis ; Reference Values ; Time Factors ; Troponin/metabolism
    Chemical Substances Biomarkers ; Troponin
    Language English
    Publishing date 2012-02
    Publishing country England
    Document type Editorial
    ZDB-ID 2481014-9
    ISSN 1752-0371 ; 1752-0363
    ISSN (online) 1752-0371
    ISSN 1752-0363
    DOI 10.2217/bmm.11.103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Failure Mode and Effects Analysis (FMEA) at the preanalytical phase for POCT blood gas analysis: proposal for a shared proactive risk analysis model.

    Van Hoof, Viviane / Bench, Suzanne / Soto, Antonio Buño / Luppa, Peter P / Malpass, Anthony / Schilling, Ulf Martin / Rooney, Kevin D / Stretton, Adam / Tintu, Andrei N

    Clinical chemistry and laboratory medicine

    2022  Volume 60, Issue 8, Page(s) 1186–1201

    Abstract: Objectives: Proposal of a risk analysis model to diminish negative impact on patient care by preanalytical errors in blood gas analysis (BGA).: Methods: Here we designed a Failure Mode and Effects Analysis (FMEA) risk assessment template for BGA, ... ...

    Abstract Objectives: Proposal of a risk analysis model to diminish negative impact on patient care by preanalytical errors in blood gas analysis (BGA).
    Methods: Here we designed a Failure Mode and Effects Analysis (FMEA) risk assessment template for BGA, based on literature references and expertise of an international team of laboratory and clinical health care professionals.
    Results: The FMEA identifies pre-analytical process steps, errors that may occur whilst performing BGA (potential failure mode), possible consequences (potential failure effect) and preventive/corrective actions (current controls). Probability of failure occurrence (OCC), severity of failure (SEV) and probability of failure detection (DET) are scored per potential failure mode. OCC and DET depend on test setting and patient population e.g., they differ in primary community health centres as compared to secondary community hospitals and third line university or specialized hospitals. OCC and DET also differ between stand-alone and networked instruments, manual and automated patient identification, and whether results are automatically transmitted to the patient's electronic health record. The risk priority number (RPN = SEV × OCC × DET) can be applied to determine the sequence in which risks are addressed. RPN can be recalculated after implementing changes to decrease OCC and/or increase DET. Key performance indicators are also proposed to evaluate changes.
    Conclusions: This FMEA model will help health care professionals manage and minimize the risk of preanalytical errors in BGA.
    MeSH term(s) DEET ; Healthcare Failure Mode and Effect Analysis ; Humans ; Pre-Analytical Phase ; Probability ; Risk Assessment
    Chemical Substances DEET (134-62-3)
    Language English
    Publishing date 2022-05-24
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1418007-8
    ISSN 1437-4331 ; 1434-6621 ; 1437-8523
    ISSN (online) 1437-4331
    ISSN 1434-6621 ; 1437-8523
    DOI 10.1515/cclm-2022-0319
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Accuracy, user-friendliness and usefulness of the Cobas h232 point-of-care test for NT-proBNP in primary care.

    Hex, Chiel / Smeets, Miek / Penders, Joris / Van Hoof, Viviane / Verbakel, Jan / Buntinx, Frank / Vaes, Bert

    Journal of clinical pathology

    2018  Volume 71, Issue 6, Page(s) 539–545

    Abstract: Aims: N-terminal pro-B-type natriuretic peptide (NT-proBNP) has been shown to be useful for ruling out heart failure in primary care. In this study, we examined the accuracy of the Cobas h232 point-of-care (POC) instrument in primary care compared with ... ...

    Abstract Aims: N-terminal pro-B-type natriuretic peptide (NT-proBNP) has been shown to be useful for ruling out heart failure in primary care. In this study, we examined the accuracy of the Cobas h232 point-of-care (POC) instrument in primary care compared with an in-hospital measurement. Furthermore, we investigated the user-friendliness and usefulness of the POC device.
    Methods: Five general practitioner (GP) groups were asked to evaluate adult patients who were suspected of having heart failure and to test NT-proBNP with the Cobas h232. The samples were subsequently delivered to and analysed at a central hospital laboratory by the Cobas e602 using conventional transport and storage. Difference between the paired measurements was analysed using a percentage difference plot, and correlation was assessed using Passing-Bablok linear regression analysis. User-friendliness and usefulness were assessed using semistructured questionnaires.
    Results: Nineteen GPs studied 94 patients. Passing-Bablok analysis showed a slope of 1.05 (95% CI 1.00 to 1.11) (R
    Conclusions: The Cobas h232 NT-proBNP POC test proved to be an accurate, user-friendly and useful test in primary care. Nearly all participating GPs were convinced that the test could benefit clinical decision making.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Attitude of Health Personnel ; Belgium ; Biomarkers/blood ; Clinical Laboratory Techniques ; Female ; General Practitioners/psychology ; Health Knowledge, Attitudes, Practice ; Heart Failure/blood ; Heart Failure/diagnosis ; Heart Function Tests/methods ; Humans ; Male ; Middle Aged ; Natriuretic Peptide, Brain/blood ; Peptide Fragments/blood ; Pilot Projects ; Point-of-Care Testing ; Predictive Value of Tests ; Primary Health Care/methods ; Reproducibility of Results ; Surveys and Questionnaires
    Chemical Substances Biomarkers ; Peptide Fragments ; pro-brain natriuretic peptide (1-76) ; Natriuretic Peptide, Brain (114471-18-0)
    Language English
    Publishing date 2018-06
    Publishing country England
    Document type Comparative Study ; Evaluation Studies ; Journal Article ; Multicenter Study
    ZDB-ID 80261-x
    ISSN 1472-4146 ; 0021-9746
    ISSN (online) 1472-4146
    ISSN 0021-9746
    DOI 10.1136/jclinpath-2017-204746
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Organisation and quality monitoring for point-of-care testing (POCT) in Belgium: proposal for an expansion of the legal framework for POCT into primary health care.

    Van Hoof, Viviane / Barglazan, Dragos / Blairon, Laurent / Braekevelt, Bob / Debois, Regis / De Vos, Nathalie Véronique J / Gruson, Damien / Jonckheere, Jef / Lanckmans, Katrien / Moens, Marc / Peeters, Bart / Penders, Joris / Roman, Alain / Van Hoovels, Lieve / Vanstapel, Florent / Verbakel, Jan Y / Verdonck, Ann / Verstraete, Alain G

    Acta clinica Belgica

    2021  Volume 77, Issue 2, Page(s) 329–336

    Abstract: Background: There is a trend towards decentralisation of laboratory tests by means of Point-of-Care testing (POCT). Within hospitals, Belgian law requires a POCT policy, coordinated by the clinical laboratory. There is however no legal framework for ... ...

    Abstract Background: There is a trend towards decentralisation of laboratory tests by means of Point-of-Care testing (POCT). Within hospitals, Belgian law requires a POCT policy, coordinated by the clinical laboratory. There is however no legal framework for POCT performed outside the hospital: no reimbursement, no compulsory quality monitoring and no limits nor control on the prices charged to the patient. Uncontrolled use of POCT can have negative consequences for individual and public health.
    Proposal: We propose that POCT outside hospitals would only be reimbursed for tests carried out within a legal framework, requiring evidence-based testing and collaboration with a clinical laboratory, because clinical laboratories have procedures for test validation and quality monitoring, are equipped for electronic data transfer, are familiar with logistical processes, can provide support when technical issues arise and can organise and certify training. Under these conditions the government investment will be offset by health benefits, e.g. fall in antibiotic consumption with POCT for CRP in primary care, quick response to SARS-CoV2-positive cases in COVID-19 triage centres.
    Priorities: 1° extension of the Belgian decree on certification of clinical laboratories to decentralised tests in primary care; 2° introduction of a separate reimbursement category for POCT; 3° introduction of reimbursement for a limited number of specified POCT; 4° setup of a Multidisciplinary POCT Advisory Council, the purpose of which is to draw up a model for reimbursement of POCT, to select tests eligible for reimbursement and to make proposals to the National Institute for Health and Disability Insurance (
    MeSH term(s) Belgium ; COVID-19/diagnosis ; COVID-19/epidemiology ; Humans ; Point-of-Care Systems ; Point-of-Care Testing ; Primary Health Care ; RNA, Viral ; SARS-CoV-2
    Chemical Substances RNA, Viral
    Language English
    Publishing date 2021-01-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 390201-8
    ISSN 2295-3337 ; 0001-5512 ; 1784-3286
    ISSN (online) 2295-3337
    ISSN 0001-5512 ; 1784-3286
    DOI 10.1080/17843286.2020.1868906
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  6. Article ; Online: Efficient voltammetric discrimination of free bilirubin from uric acid and ascorbic acid by a CVD nanographite-based microelectrode.

    Taurino, Irene / Van Hoof, Viviane / Magrez, Arnaud / Forró, László / De Micheli, Giovanni / Carrara, Sandro

    Talanta

    2014  Volume 130, Page(s) 423–426

    Abstract: We report a novel electrochemical sensor based on nanographite grown on platinum microelectrodes for the determination of bilirubin in the presence of normal concentrations of albumin. The albumin is a protein with an intrinsic ability to bind the ... ...

    Abstract We report a novel electrochemical sensor based on nanographite grown on platinum microelectrodes for the determination of bilirubin in the presence of normal concentrations of albumin. The albumin is a protein with an intrinsic ability to bind the bilirubin therefore reducing the concentration of the free electroactive metabolite in human fluids. In addition, the proposed device permits the discrimination of free bilirubin from two interferents, uric acid and ascorbic acid, by the separation of their oxidation peaks in voltammetry. Preliminary measurements in human serum prove that the proposed nanostructured platform can be used to detect bilirubin.
    MeSH term(s) Ascorbic Acid/analysis ; Ascorbic Acid/chemistry ; Bilirubin/analysis ; Bilirubin/chemistry ; Biosensing Techniques/methods ; Electrochemistry/methods ; Graphite/chemistry ; Humans ; Microelectrodes ; Oxidation-Reduction ; Platinum/chemistry ; Serum Albumin/chemistry ; Uric Acid/analysis ; Uric Acid/chemistry
    Chemical Substances Serum Albumin ; Uric Acid (268B43MJ25) ; Platinum (49DFR088MY) ; Graphite (7782-42-5) ; Ascorbic Acid (PQ6CK8PD0R) ; Bilirubin (RFM9X3LJ49)
    Language English
    Publishing date 2014-12
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2014.07.009
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  7. Article ; Online: Biomarkers and Donor Selection in Heart Transplantation.

    Vorlat, Anne / De Hous, Nicolas / Vervaecke, Alexander J / Vermeulen, Tom / Van Craenenbroeck, Emeline / Heidbuchel, Hein / Rodrigus, Inez / Van Donink, Walter / Ancion, Arnaud / Van Cleemput, Johan / Van Hoof, Viviane O / Claeys, Marc J

    Transplantation proceedings

    2019  Volume 51, Issue 6, Page(s) 1673–1678

    Abstract: Background: Previously, we showed that B-type natriuretic peptide (BNP) measured in the donor was related to cardiac performance after cardiac transplantation. The present study assesses the value of 3 biomarkers in the selection of donor hearts in a ... ...

    Abstract Background: Previously, we showed that B-type natriuretic peptide (BNP) measured in the donor was related to cardiac performance after cardiac transplantation. The present study assesses the value of 3 biomarkers in the selection of donor hearts in a larger cohort.
    Methods: Blood samples were prospectively obtained in 105 brain-dead patients scheduled for heart donation. BNP, soluble suppressor of tumorigenicity 2 (ST2), and troponin of heart donors were correlated with hemodynamic parameters early after transplantation as well as with the mortality of the recipients.
    Results: A significant inverse relationship was found between donor BNP measured at the time of donation and recipient cardiac index and cardiac output at day 13 post-transplantation (r = -0.31, P = .005, and r = -0.34, P = .0016, respectively). Logistic regression analysis-including BNP, ST2, and troponin-showed that donor BNP was a predictor of a poor cardiac index (< 2.2 L/min/m
    Conclusion: Donor BNP, but not donor ST2 or high-sensitivity troponin, provides information on the donor heart and early post-transplant performance, including 1-month mortality.
    MeSH term(s) Adult ; Biomarkers/blood ; Brain Death/blood ; Cardiac Output ; Donor Selection/methods ; Female ; Heart/physiopathology ; Heart Transplantation ; Hemodynamics ; Humans ; Interleukin-1 Receptor-Like 1 Protein/blood ; Male ; Middle Aged ; Natriuretic Peptide, Brain/blood ; Prospective Studies ; Sensitivity and Specificity ; Tissue Donors ; Transplants/physiopathology ; Treatment Outcome ; Troponin/blood
    Chemical Substances Biomarkers ; IL1RL1 protein, human ; Interleukin-1 Receptor-Like 1 Protein ; Troponin ; Natriuretic Peptide, Brain (114471-18-0)
    Language English
    Publishing date 2019-07-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 82046-5
    ISSN 1873-2623 ; 0041-1345
    ISSN (online) 1873-2623
    ISSN 0041-1345
    DOI 10.1016/j.transproceed.2019.04.041
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  8. Article ; Online: Caspase-3 Deletion Promotes Necrosis in Atherosclerotic Plaques of ApoE Knockout Mice.

    Grootaert, Mandy O J / Schrijvers, Dorien M / Hermans, Marthe / Van Hoof, Viviane O / De Meyer, Guido R Y / Martinet, Wim

    Oxidative medicine and cellular longevity

    2016  Volume 2016, Page(s) 3087469

    Abstract: Apoptosis of macrophages and vascular smooth muscle cells (VSMCs) in advanced atherosclerotic plaques contributes to plaque progression and instability. Caspase-3, a key executioner protease in the apoptotic pathway, has been identified in human and ... ...

    Abstract Apoptosis of macrophages and vascular smooth muscle cells (VSMCs) in advanced atherosclerotic plaques contributes to plaque progression and instability. Caspase-3, a key executioner protease in the apoptotic pathway, has been identified in human and mouse atherosclerotic plaques but its role in atherogenesis is not fully explored. We therefore investigated the impact of caspase-3 deletion on atherosclerosis by crossbreeding caspase-3 knockout (Casp3
    MeSH term(s) Animals ; Apolipoproteins E/deficiency ; Apoptosis ; Caspase 3/metabolism ; Mice ; Mice, Knockout ; Necrosis ; Plaque, Atherosclerotic/metabolism
    Chemical Substances Apolipoproteins E ; Caspase 3 (EC 3.4.22.-)
    Language English
    Publishing date 2016
    Publishing country United States
    Document type Journal Article
    ISSN 1942-0994
    ISSN (online) 1942-0994
    DOI 10.1155/2016/3087469
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Belgian rare diseases plan in clinical pathology: identification of key biochemical diagnostic tests and establishment of reference laboratories and financing conditions.

    Vandevelde, Nathalie M / Vermeersch, Pieter / Devreese, Katrien M J / Vincent, Marie-Françoise / Gulbis, Béatrice / Eyskens, François / Boemer, François / Gothot, André / Van Hoof, Viviane O / Bonroy, Carolien / Stepman, Hedwig / Martens, Geert A / Bossuyt, Xavier / Roosens, Laurence / Smet, Julie / Laeremans, Hilde / Weets, Ilse / Minon, Jean-Marc / Vernelen, Kris /
    Coucke, Wim

    Orphanet journal of rare diseases

    2021  Volume 16, Issue 1, Page(s) 89

    Abstract: Background: One objective of the Belgian Rare Diseases plan is to improve patients' management using phenotypic tests and, more specifically, the access to those tests by identifying the biochemical analyses used for rare diseases, developing new ... ...

    Abstract Background: One objective of the Belgian Rare Diseases plan is to improve patients' management using phenotypic tests and, more specifically, the access to those tests by identifying the biochemical analyses used for rare diseases, developing new financing conditions and establishing reference laboratories.
    Methods: A feasibility study was performed from May 2015 until August 2016 in order to select the financeable biochemical analyses, and, among them, those that should be performed by reference laboratories. This selection was based on an inventory of analyses used for rare diseases and a survey addressed to the Belgian laboratories of clinical pathology (investigating the annual analytical costs, volumes, turnaround times and the tests unavailable in Belgium and outsourced abroad). A proposal of financeable analyses, financing modalities, reference laboratories' scope and budget estimation was developed and submitted to the Belgian healthcare authorities. After its approval in December 2016, the implementation phase took place from January 2017 until December 2019.
    Results: In 2019, new reimbursement conditions have been published for 46 analyses and eighteen reference laboratories have been recognized. Collaborations have also been developed with 5 foreign laboratories in order to organize the outsourcing and financing of 9 analyses unavailable in Belgium.
    Conclusions: In the context of clinical pathology and rare diseases, this initiative enabled to identify unreimbursed analyses and to meet the most crucial financial needs. It also contributed to improve patients' management by establishing Belgian reference laboratories and foreign referral laboratories for highly-specific analyses and a permanent surveillance, quality and financing framework for those tests.
    MeSH term(s) Belgium ; Budgets ; Diagnostic Tests, Routine ; Humans ; Laboratories ; Rare Diseases/diagnosis
    Language English
    Publishing date 2021-02-17
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1750-1172
    ISSN (online) 1750-1172
    DOI 10.1186/s13023-021-01728-1
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  10. Article ; Online: Analytical performance of a platform for point-of-care CRP testing in adults consulting for lower respiratory tract infection in primary care.

    Matheeussen, Veerle / Van Hoof, Viviane / Loens, Katherine / Lammens, Christine / Vanderstraeten, Anouk / Coenen, Samuel / Butler, Chris C / Little, Paul / Verheij, Theo J M / Goossens, Herman / Ieven, Margareta

    European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology

    2018  Volume 37, Issue 7, Page(s) 1319–1323

    Abstract: C-reactive protein (CRP) is a biomarker widely used for disease severity assessment and treatment of inflammatory conditions. Point-of-care testing (POCT) devices should ideally be rapid and provide similar results to standard tests done in laboratories. ...

    Abstract C-reactive protein (CRP) is a biomarker widely used for disease severity assessment and treatment of inflammatory conditions. Point-of-care testing (POCT) devices should ideally be rapid and provide similar results to standard tests done in laboratories. Two thousand nine hundred twenty-two serum samples were obtained from adult patients presenting to primary care with symptoms of lower respiratory infection in a European diagnostic study. The analytic performance of the CRP QuikRead POCT device (Orion Diagnostica) was evaluated by comparing results with a central laboratory method (Dimension Vista, Siemens), with both tests performed in a laboratory setting. For a CRP cut-off concentration of ≥ 30 mg/L, the QuikRead test had a sensitivity of 92.2%, and specificity of 99.4%. The mean difference between the QuikRead and the central lab test was 0.4 mg/L. The slope of the Passing-Bablok regression was 0.94 (95% CI 0.93-0.95) indicating an underestimation of CRP levels of 6% by QuikRead. CRP estimates obtained from the QuikRead test correlate well with a central laboratory assay and the measurement displays low inter-assay variation. Therefore, the QuikRead test is a good candidate for CRP testing in primary care.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biomarkers/analysis ; C-Reactive Protein/analysis ; Diagnostic Tests, Routine/standards ; Female ; Humans ; Male ; Middle Aged ; Point-of-Care Testing/standards ; Respiratory Tract Infections/diagnosis ; Sensitivity and Specificity ; Young Adult
    Chemical Substances Biomarkers ; C-Reactive Protein (9007-41-4)
    Language English
    Publishing date 2018-05-10
    Publishing country Germany
    Document type Comparative Study ; Evaluation Studies ; Journal Article
    ZDB-ID 603155-9
    ISSN 1435-4373 ; 0934-9723 ; 0722-2211
    ISSN (online) 1435-4373
    ISSN 0934-9723 ; 0722-2211
    DOI 10.1007/s10096-018-3253-3
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