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  1. Article ; Online: Strengths and challenges in current lung cancer care: Timeliness and diagnostic procedures in six Dutch hospitals.

    Genet, Sylvia A A M / Visser, Esther / Youssef-El Soud, Maggy / Belderbos, Huub N A / Stege, Gerben / de Saegher, Marleen E A / Westeinde, Susan C van 't / Brunsveld, Luc / Broeren, Maarten A C / van de Kerkhof, Daan / Eduati, Federica / van den Borne, Ben E E M / Scharnhorst, Volkher

    Lung cancer (Amsterdam, Netherlands)

    2024  Volume 189, Page(s) 107477

    Abstract: Objectives: Timely diagnosis of lung cancer (LC) is crucial to achieve optimal patient care and outcome. Moreover, the number of procedures required to obtain a definitive diagnosis can have a large influence on the life expectancy of a patient. Here, ... ...

    Abstract Objectives: Timely diagnosis of lung cancer (LC) is crucial to achieve optimal patient care and outcome. Moreover, the number of procedures required to obtain a definitive diagnosis can have a large influence on the life expectancy of a patient. Here, adherence with existing Dutch guidelines for timeliness and type and number of invasive and imaging procedures was assessed.
    Materials and methods: 1096 patients with suspected LC were enrolled in this multicenter prospective study (NL9146). The overall survival, time from referral to the first appointment with the pulmonologist, time to diagnosis and treatment, and the number of imaging and invasive procedures were evaluated. Patients were divided into different diagnostic groupsearly- and advanced stage non-small-cell lung cancer (NSCLC), small-cell lung cancer (SCLC), large cell neuroendocrine carcinoma of the lung (LCNEC), patients without LC and patients without a definitive diagnosis.
    Results: The majority of patients (66 %) received a definitive diagnosis within 5 weeks, although the time to diagnosis of early-stage LC patients and patients without LC was significantly longer comparted to advanced stage LC. An increase in invasive procedures was seen for early-stage LC compared to advanced stage LC and for 13 % of the advanced stage non-squamous NSCLC patients up to three additional invasive procedures were performed solely to obtain sufficient material for NGS. For patients without a definitive diagnosis, 50 % did undergo at least one invasive procedure, while 11 % did not wish to undergo any invasive procedures.
    Conclusion: These insights could aid in improved LC diagnostics and efficient implementation of new techniques like liquid biopsy and artificial intelligence. This may lead to more timely LC care, a decreased number of invasive procedures, less variability between the diagnostic trajectory of different patients and aid in obtaining a definitive diagnosis for all patients.
    MeSH term(s) Humans ; Lung Neoplasms/diagnosis ; Lung Neoplasms/therapy ; Carcinoma, Non-Small-Cell Lung/diagnosis ; Carcinoma, Non-Small-Cell Lung/therapy ; Artificial Intelligence ; Prospective Studies ; Hospitals ; Carcinoma, Neuroendocrine ; Lung
    Language English
    Publishing date 2024-01-22
    Publishing country Ireland
    Document type Multicenter Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 632771-0
    ISSN 1872-8332 ; 0169-5002
    ISSN (online) 1872-8332
    ISSN 0169-5002
    DOI 10.1016/j.lungcan.2024.107477
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Therapy Monitoring of EGFR-Positive Non-Small-Cell Lung Cancer Patients Using ddPCR Multiplex Assays.

    de Kock, Remco / van den Borne, Ben / Youssef-El Soud, Maggy / Belderbos, Huub / Brunsveld, Luc / Scharnhorst, Volkher / Deiman, Birgit

    The Journal of molecular diagnostics : JMD

    2021  Volume 23, Issue 4, Page(s) 495–505

    Abstract: The detection of EGFR-sensitizing and EGFR-resistance mutations in advanced non-small-cell lung cancer patients is important for the selection and monitoring of EGFR tyrosine-kinase inhibitor therapy. Droplet digital PCR (ddPCR) multiplex assays allow ... ...

    Abstract The detection of EGFR-sensitizing and EGFR-resistance mutations in advanced non-small-cell lung cancer patients is important for the selection and monitoring of EGFR tyrosine-kinase inhibitor therapy. Droplet digital PCR (ddPCR) multiplex assays allow for sensitive and simultaneous detection of multiple mutations in cell-free DNA (cfDNA) with a minimum of extract needed and at lower cost. Patients were screened for the EGFR tyrosine-kinase inhibitor-sensitizing mutations Ex19Del, L858R, L861Q, G719S, and S768I using a novel ddPCR pentaplex assay. Patients who tested positive subsequently were monitored during treatment for the EGFR-sensitizing mutation and two EGFR-resistance mutations, T790M and C797S, using a ddPCR monitor triplex assay. The ddPCR multiplex assays enabled reliable detection of each mutation with a fractional abundance of at least 0.1%. For six patients, longitudinal data were analyzed and the ddPCR results provided a good reflection of the course of the disease and radiologic response. This study confirms that ddPCR on cfDNA supports the diagnosis and therapy selection, and shows that ddPCR multiplex assays on cfDNA could be a valuable additional diagnostic tool for therapy monitoring of non-small-cell lung cancer patients.
    MeSH term(s) Carcinoma, Non-Small-Cell Lung/drug therapy ; Carcinoma, Non-Small-Cell Lung/epidemiology ; Carcinoma, Non-Small-Cell Lung/genetics ; Carcinoma, Non-Small-Cell Lung/pathology ; Cell-Free Nucleic Acids/blood ; Cell-Free Nucleic Acids/genetics ; Drug Resistance, Neoplasm/genetics ; ErbB Receptors/antagonists & inhibitors ; ErbB Receptors/genetics ; Follow-Up Studies ; Humans ; Liquid Biopsy/methods ; Longitudinal Studies ; Lung Neoplasms/drug therapy ; Lung Neoplasms/epidemiology ; Lung Neoplasms/genetics ; Lung Neoplasms/pathology ; Molecular Targeted Therapy/methods ; Multiplex Polymerase Chain Reaction/methods ; Mutation ; Netherlands/epidemiology ; Protein Kinase Inhibitors/pharmacology ; Protein Kinase Inhibitors/therapeutic use ; Reproducibility of Results ; Treatment Outcome
    Chemical Substances Cell-Free Nucleic Acids ; Protein Kinase Inhibitors ; EGFR protein, human (EC 2.7.10.1) ; ErbB Receptors (EC 2.7.10.1)
    Language English
    Publishing date 2021-01-22
    Publishing country United States
    Document type Clinical Trial ; Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 2000060-1
    ISSN 1943-7811 ; 1525-1578
    ISSN (online) 1943-7811
    ISSN 1525-1578
    DOI 10.1016/j.jmoldx.2021.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Psychosocial consequences of a reduced ability to eat for patients with cancer and their informal caregivers: A qualitative study.

    Lize, Nora / Raijmakers, Natasja / van Lieshout, Rianne / Youssef-El Soud, Maggy / van Limpt, Anouk / van der Linden, Mecheline / Beijer, Sandra

    European journal of oncology nursing : the official journal of European Oncology Nursing Society

    2020  Volume 49, Page(s) 101838

    Abstract: Purpose: Patients with cancer often experience a reduced ability to eat. This can have psychosocial consequences for both patients and informal caregivers. Current literature is mainly focused on patients with end stage advanced disease and cancer ... ...

    Abstract Purpose: Patients with cancer often experience a reduced ability to eat. This can have psychosocial consequences for both patients and informal caregivers. Current literature is mainly focused on patients with end stage advanced disease and cancer cachexia. This qualitative study provides new insights in the field of Psycho-Oncology by exploring psychosocial consequences of a reduced ability to eat in patients in different stages of the disease and in recovery and remission.
    Method: Semi-structured interviews (n = 26) were conducted in patients with head and neck, lung cancer or lymphoma. Patients' informal caregivers participated in 12 interviews. All interviews were recorded, transcribed and thematically analysed using Atlas.ti.
    Results: Four themes emerged related to psychosocial consequences of a reduced ability to eat: struggle with eating, high sense of responsibility, misunderstanding by social environment and social consequences. Emotions mentioned by patients and informal caregivers were: anger, anxiety, disappointment, grief and sadness, guilt, powerlessness and shame. The theme social consequences was related to: less pleasure experienced and the social strategies: adjust, search for alternatives and avoid.
    Conclusion: Patients with cancer and their informal caregivers experience a wide range of psychosocial consequences of reduced ability to eat during all phases of the disease trajectory and in recovery and remission. It is important to recognise and acknowledge this struggle to optimise future care.
    MeSH term(s) Adult ; Aged ; Caregivers/psychology ; Eating/psychology ; Feeding and Eating Disorders/etiology ; Feeding and Eating Disorders/psychology ; Female ; Humans ; Male ; Middle Aged ; Neoplasms/complications ; Neoplasms/psychology ; Patients/psychology ; Qualitative Research
    Language English
    Publishing date 2020-09-18
    Publishing country Scotland
    Document type Journal Article
    ZDB-ID 2017117-1
    ISSN 1532-2122 ; 1462-3889
    ISSN (online) 1532-2122
    ISSN 1462-3889
    DOI 10.1016/j.ejon.2020.101838
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Liquid biopsy-based decision support algorithms for diagnosis and subtyping of lung cancer.

    Visser, Esther / Genet, Sylvia A A M / de Kock, Remco P P A / van den Borne, Ben E E M / Youssef-El Soud, Maggy / Belderbos, Huub N A / Stege, Gerben / de Saegher, Marleen E A / van 't Westeinde, Susan C / Brunsveld, Luc / Broeren, Maarten A C / van de Kerkhof, Daan / Deiman, Birgit A L M / Eduati, Federica / Scharnhorst, Volkher

    Lung cancer (Amsterdam, Netherlands)

    2023  Volume 178, Page(s) 28–36

    Abstract: Objectives: Pathologic subtyping of tissue biopsies is the gold standard for the diagnosis of lung cancer (LC), which could be complicated in cases of e.g. inconclusive tissue biopsies or unreachable tumors. The diagnosis of LC could be supported in a ... ...

    Abstract Objectives: Pathologic subtyping of tissue biopsies is the gold standard for the diagnosis of lung cancer (LC), which could be complicated in cases of e.g. inconclusive tissue biopsies or unreachable tumors. The diagnosis of LC could be supported in a minimally invasive manner using protein tumor markers (TMs) and circulating tumor DNA (ctDNA) measured in liquid biopsies (LBx). This study evaluates the performance of LBx-based decision-support algorithms for the diagnosis of LC and subtyping into small- and non-small-cell lung cancer (SCLC and NSCLC) aiming to directly impact clinical practice.
    Materials and methods: In this multicenter prospective study (NL9146), eight protein TMs (CA125, CA15.3, CEA, CYFRA 21-1, HE4, NSE, proGRP and SCCA) and ctDNA mutations in EGFR, KRAS and BRAF were analyzed in blood of 1096 patients suspected of LC. The performance of individual and combined TMs to identify LC, NSCLC or SCLC was established by evaluating logistic regression models at pre-specified positive predictive values (PPV) of ≥95% or ≥98%. The most informative protein TMs included in the multi-parametric models were selected by recursive feature elimination.
    Results: Single TMs could identify LC, NSCLC and SCLC patients with 46%, 25% and 40% sensitivity, respectively, at pre-specified PPVs. Multi-parametric models combining TMs and ctDNA significantly improved sensitivities to 65%, 67% and 50%, respectively.
    Conclusion: In patients suspected of LC, the LBx-based decision-support algorithms allowed identification of about two-thirds of all LC and NSCLC patients and half of SCLC patients. These models therefore show clinical value and may support LC diagnostics, especially in patients for whom pathologic subtyping is impossible or incomplete.
    MeSH term(s) Humans ; Lung Neoplasms/diagnosis ; Lung Neoplasms/genetics ; Carcinoma, Non-Small-Cell Lung/diagnosis ; Carcinoma, Non-Small-Cell Lung/genetics ; Carcinoma, Non-Small-Cell Lung/pathology ; Prospective Studies ; Biomarkers, Tumor ; Phosphopyruvate Hydratase ; Liquid Biopsy
    Chemical Substances antigen CYFRA21.1 ; Biomarkers, Tumor ; Phosphopyruvate Hydratase (EC 4.2.1.11)
    Language English
    Publishing date 2023-02-01
    Publishing country Ireland
    Document type Multicenter Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 632771-0
    ISSN 1872-8332 ; 0169-5002
    ISSN (online) 1872-8332
    ISSN 0169-5002
    DOI 10.1016/j.lungcan.2023.01.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Social consequences of advanced cancer in patients and their informal caregivers: a qualitative study.

    van Roij, Janneke / Brom, Linda / Youssef-El Soud, Maggy / van de Poll-Franse, Lonneke / Raijmakers, Natasja J H

    Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer

    2018  Volume 27, Issue 4, Page(s) 1187–1195

    Abstract: Purpose: Cancer threatens the social well-being of patients and their informal caregivers. Social life is even more profoundly affected in advanced diseases, but research on social consequences of advanced cancer is scarce. This study aims to explore ... ...

    Abstract Purpose: Cancer threatens the social well-being of patients and their informal caregivers. Social life is even more profoundly affected in advanced diseases, but research on social consequences of advanced cancer is scarce. This study aims to explore social consequences of advanced cancer as experienced by patients and their informal caregivers.
    Methods: Seven focus groups and seven in-depth semi-structured interviews with patients (n = 18) suffering from advanced cancer and their informal caregivers (n = 15) were conducted. Audiotapes were transcribed verbatim and open coded using a thematic analysis approach.
    Results: Social consequences were categorized in three themes: "social engagement," "social identity," and "social network." Regarding social engagement, patients and informal caregivers said that they strive for normality by continuing their life as prior to the diagnosis, but experienced barriers in doing so. Regarding social identity, patients and informal caregivers reported feelings of social isolation. The social network became more transparent, and the value of social relations had increased since the diagnosis. Many experienced positive and negative shifts in the quantity and quality of their social relations.
    Conclusions: Social consequences of advanced cancer are substantial. There appears to be a great risk of social isolation in which responses from social relations play an important role. Empowering patients and informal caregivers to discuss their experienced social consequences is beneficial. Creating awareness among healthcare professionals is essential as they provide social support and anticipate on social problems. Finally, educating social relations regarding the impact of advanced cancer and effective support methods may empower social support systems and reduce feelings of isolation.
    MeSH term(s) Adult ; Aged ; Awareness ; Caregivers/psychology ; Caregivers/statistics & numerical data ; Disease Progression ; Female ; Focus Groups ; Humans ; Male ; Middle Aged ; Neoplasms/epidemiology ; Neoplasms/pathology ; Neoplasms/psychology ; Neoplasms/therapy ; Netherlands/epidemiology ; Qualitative Research ; Social Identification ; Social Networking ; Social Participation/psychology ; Social Support ; Socioeconomic Factors
    Language English
    Publishing date 2018-09-13
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1134446-5
    ISSN 1433-7339 ; 0941-4355
    ISSN (online) 1433-7339
    ISSN 0941-4355
    DOI 10.1007/s00520-018-4437-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Guideline adherence of mediastinal staging of non-small cell lung cancer: A multicentre retrospective analysis.

    Bousema, Jelle E / van Dorp, Martijn / Hoeijmakers, Fieke / Huijbregts, Ilse A / Barlo, Nicole P / Bootsma, Gerben P / van Boven, WimJan P / Claessens, Niels J M / Dingemans, Anne-Marie C / Hanselaar, Wessel E / Kortekaas, Robert Th J / Lardenoije, Jan-Willem H P / Maessen, Jos G / Schreurs, W Hermien / Vissers, Yvonne / Youssef-El Soud, Maggy / Dijkgraaf, Marcel G W / Annema, JoukeT / van den Broek, Frank J C

    Lung cancer (Amsterdam, Netherlands)

    2019  Volume 134, Page(s) 52–58

    Abstract: Objectives: Mediastinal lymph node staging of NSCLC by initial endosonography and confirmatory mediastinoscopy is recommended by the European guideline. We assessed guideline adherence on mediastinal staging, whether staging procedures were performed ... ...

    Abstract Objectives: Mediastinal lymph node staging of NSCLC by initial endosonography and confirmatory mediastinoscopy is recommended by the European guideline. We assessed guideline adherence on mediastinal staging, whether staging procedures were performed systematically and unforeseen N2 rates following staging by endosonography with or without confirmatory mediastinoscopy.
    Material and methods: We performed a multicentre (n = 6) retrospective analysis of NSCLC patients without distant metastases, who were surgical candidates and had an indication for mediastinal staging in the year 2015. All patients who underwent EBUS, EUS and/or mediastinoscopy were included. Surgical lymph node dissection was the reference standard. Guideline adherence was based on the 2014 ESTS guideline.
    Results: 330 consecutive patients (mean age 69 years; 61% male) were included. The overall prevalence of N2/N3 disease was 42%. Initial mediastinal staging by endosonography was done in 84% (277/330; range among centres 71-100%; p < .01). Confirmatory mediastinoscopy was performed in 40% of patients with tumour negative endosonography (61/154; range among centres 10%-73%; p < .01). Endosonography procedures were performed 'systematically' in 21% of patients (57/277) with significant variability among centres (range 0-56%; p < .01). Unforeseen N2 rates after lobe-specific lymph node dissection were 8.6% (3/35; 95%-CI 3.0-22.4) after negative endosonography versus 7.5% (3/40; 95% CI 2.6-19.9) after negative endosonography and confirmatory mediastinoscopy.
    Conclusion: Although adherence to the European NSCLC mediastinal staging guideline on initial use of endosonography was good, 30% of endosonography procedures were performed insufficiently. Confirmatory mediastinoscopy following negative endosonography was frequently omitted. Significant variability was found among participating centres regarding staging strategy and systematic performance of procedures. However, unforeseen N2 rates after mediastinal staging by endosonography with and without confirmatory mediastinoscopy were comparable.
    MeSH term(s) Aged ; Aged, 80 and over ; Carcinoma, Non-Small-Cell Lung/diagnosis ; Carcinoma, Non-Small-Cell Lung/epidemiology ; Endosonography/methods ; Female ; Guideline Adherence ; Humans ; Lung Neoplasms/diagnosis ; Lung Neoplasms/epidemiology ; Male ; Mediastinoscopy/methods ; Mediastinum/diagnostic imaging ; Mediastinum/pathology ; Middle Aged ; Neoplasm Staging/methods ; Netherlands/epidemiology ; Positron Emission Tomography Computed Tomography ; Practice Guidelines as Topic ; Retrospective Studies
    Language English
    Publishing date 2019-05-30
    Publishing country Ireland
    Document type Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 632771-0
    ISSN 1872-8332 ; 0169-5002
    ISSN (online) 1872-8332
    ISSN 0169-5002
    DOI 10.1016/j.lungcan.2019.05.031
    Database MEDical Literature Analysis and Retrieval System OnLINE

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