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Query: "author" (Ry��ka Ales) .

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91.
Current practice of airway stenting in the adult population in Europe : a survey of the European Association of Bronchology and Interventional Pulmonology (EABIP)
H. Dutau, D. Breen, António Bugalho, L. Dalar, J. Daniels, C. Dooms, R. Eberhardt, L. Ek, M. Encheva, Aleš Rozman, 2018, original scientific article

Abstract: Background: Airway stenting (AS) commenced in Europe circa 1987 with the first placement of a dedicated silicone airway stent. Subsequently, over the last 3 decades, AS was spread throughout Europe, using different insertion techniques and different types of stents. Objectives: This study is an international survey conducted by the European Association of Bronchology and Interventional Pulmonology (EABIP) focusing on AS practice within 26 European countries. Methods: A questionnaire was sent to all EABIP National Delegates in February 2015. National delegates were responsible for obtaining precise and objective data regarding the current AS practice in their country. The deadline for data collection was February 2016. Results: France, Germany, and the UK are the 3 leading countries in terms of number of centres performing AS. These 3 nations represent the highest ranked nations within Europe in terms of gross national income. Overall, pulmonologists perform AS exclusively in 5 countries and predominately in 12. AS is performed almost exclusively in public hospitals. AS performed under general anaesthesia is the rule for the majority of institutions, and local anaesthesia is an alternative in 9 countries. Rigid bronchoscopy techniques are predominant in 20 countries. Amongst commercially available stents, both Dumon and Ultraflex are by far the most commonly deployed. Finally, 11 countries reported that AS is an economically viable activity, while 10 claimed that it is not. Conclusion: This EABIP survey demonstrates that there is significant heterogeneity in AS practice within Europe. Therapeutic bronchoscopy training and economic issues/reimbursement for procedures are likely to be the primary reasons explaining these findings.
Keywords: pulmonary medicine, bronchoscopy, bronchoscopes, stents, airway stenting, adult population, rigid bronchoscopes, flexible bronchoscopes
Published in DiRROS: 16.12.2020; Views: 1111; Downloads: 507
URL Link to file

92.
NSCLC molecular testing in Central and Eastern European countries
Ales Ryška, Peter Berzinec, Luka Brčić, Tanja Čufer, Rafal Dziadziuszko, Maya Gottfried, Ilona Kovalszky, Włodzimierz Olszewski, Buge Oz, Lukas Plank, József Tímár, 2018, original scientific article

Abstract: Background: The introduction of targeted treatments for subsets of non-small cell lung cancer (NSCLC) has highlighted the importance of accurate molecular diagnosis to determine if an actionable genetic alteration is present. Few data are available for Central and Eastern Europe (CEE) on mutation rates, testing rates, and compliance with testing guidelines. Methods: A questionnaire about molecular testing and NSCLC management was distributed to relevant specialists in nine CEE countries, and pathologists were asked to provide the results of EGFR and ALK testing over a 1-year period. Results: A very high proportion of lung cancer cases are confirmed histologically/cytologically (75-100%), and molecular testing of NSCLC samples has been established in all evaluated CEE countries in 2014. Most countries follow national or international guidelines on which patients to test for EGFR mutations and ALK rearrangements. In most centers at that time, testing was undertaken on request of the clinician rather than on the preferred reflex basis. Immunohistochemistry, followed by fluorescent in situ hybridization confirmation of positive cases, has been widely adopted for ALK testing in the region. Limited reimbursement is a significant barrier to molecular testing in the region and a disincentive to reflex testing. Multidisciplinary tumor boards are established in most of the countries and centers, with 75-100% of cases being discussed at a multidisciplinary tumor board at specialized centers. Conclusions: Molecular testing is established throughout the CEE region, but improved and unbiased reimbursement remains a major challenge for the future. Increasing the number of patients reviewed by multidisciplinary boards outside of major centers and access to targeted therapy based on the result of molecular testing are other major challenges.
Keywords: non-small-cell lung carcinoma, molecular diagnostic techniques, EGFR mutations, ALK rearrangements, Central Europe, Eastern Europe
Published in DiRROS: 30.11.2020; Views: 1591; Downloads: 905
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93.
Is the LENT score already outdated?
Aleš Rozman, Tony S. K. Mok, 2018, short scientific article

Keywords: cancer, oncology, malignant pleural effusion, survival, LENT score
Published in DiRROS: 20.11.2020; Views: 1238; Downloads: 278
URL Link to file

94.
Trans-esophageal endobronchial ultrasound-guided needle aspiration (EUS-B-NA) : a road map for the chest physician
António Bugalho, Maria De Santis, A. Szlubowski, Aleš Rozman, R. Eberhardt, 2018, review article

Abstract: The endobronchial ultrasound (EBUS) scope has been increasingly used in the gastrointestinal tract (EUS-B). Scientific data proves its efficacy and safety to provide a complete lung cancer staging, when combined with EBUS-TBNA, and in the diagnosis of para-esophageal lesions. There are multiple barriers to start performing EUS-B but probably the most important ones are related to knowledge and training, so new operators should follow a structured training curriculum. This review aims to reflect the best current knowledge regarding EUS-B and provide a road map to assist those who are incorporating the technique into their clinical practice.
Keywords: diagnosis, lymph nodes, mediastinum, non-small-cell lung carcinoma -- diagnosis, fine-needle biopsy, fine needle aspiration
Published in DiRROS: 20.11.2020; Views: 1519; Downloads: 820
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95.
Non-small cell lung cancer in countries of Central and Southeastern Europe : diagnostic procedures and treatment reimbursement surveyed by the Central European Cooperative Oncology Group
Ales Ryška, Rares Buiga, Albena Fakirova, Izidor Kern, Włodzimierz Olszewski, Lukas Plank, Sven Seiwerth, Erika Toth, Eri Zivka, Christiane Thallinger, Christoph Zielinski, Luka Brčić, 2018, original scientific article

Abstract: This article analyzes the availability of different diagnostic procedures of non-small cell lung cancer (NSCLC) and the reimbursement landscape of drugs for NSCLC in countries of central and southeastern Europe (CEE). A survey was conducted by the Central European Cooperative Oncology Group. Results of the survey show that both availability and reimbursement of diagnoses of molecular alterations in NSCLC, the detection of which is essential for therapeutic decisions, varies widely between countries of CEE. Not only is "reflex" testing often substituted by analyses performed only "on demand," but reimbursement of such assessments varies widely between unavailability and payments by the health care system or even pharmaceutical companies. It was concluded that a structured access to testing and reimbursement should be the aim in order to provide patients with appropriate therapeutic options. Implications for Practice. This article provides an overview of the limitations in lung cancer treatment in countries of central and southeastern Europe, as well as the reimbursement status of various lung cancer treatment regimens in these countries, which directly impacts treatment options.
Keywords: Non-small cell lung carcinoma -- diagnosis -- economics -- Europe, molecular diagnostic techniques, precision medicine, Central Europe, Southeastern Europe, reimbursement
Published in DiRROS: 09.11.2020; Views: 1461; Downloads: 346
URL Link to file

96.
Expression of FGFR1-4 in malignant pleural mesothelioma tissue and corresponding cell lines and its relationship to patient survival and FGFR inhibitor sensitivity
Gregor Vlačić, Mir Alireza Hoda, Thomas Klikovits, Katharina Sinn, Elisabeth Gschwandtner, Katja Mohorčič, Karin Schelch, Christine Pirker, Barbara Peter-Vörösmarty, Jelena Brankovic, Tanja Čufer, Aleš Rozman, Izidor Kern, 2019, original scientific article

Abstract: Malignant pleural mesothelioma (MPM) is a devastating malignancy with limited therapeutic options. Fibroblast growth factor receptors (FGFR) and their ligands were shown to contribute to MPM aggressiveness and it was suggested that subgroups of MPM patients could benefit from FGFR-targeted inhibitors. In the current investigation, we determined the expression of all four FGFRs (FGFR1-FGFR4) by immunohistochemistry in tissue samples from 94 MPM patients. From 13 of these patients, we were able to establish stable cell lines, which were subjected to FGFR1-4 staining, transcript analysis by quantitative RT-PCR, and treatment with the FGFR inhibitor infigratinib. While FGFR1 and FGFR2 were widely expressed in MPM tissue and cell lines, FGFR3 and FGFR4 showed more restricted expression. FGFR1 and FGFR2 showed no correlation with clinicopathologic data or patient survival, but presence of FGFR3 in 42% and of FGFR4 in 7% of patients correlated with shorter overall survival. Immunostaining in cell lines was more homogenous than in the corresponding tissue samples. Neither transcript nor protein expression of FGFR1-4 correlated with response to infigratinib treatment in MPM cell lines. We conclude that FGFR3 and FGFR4, but not FGFR1 or FGFR2, have prognostic significance in MPM and that FGFR expression is not suffcient to predict FGFR inhibitor response in MPM cell lines.
Keywords: malignant pleural mesothelioma, fibroblast growth factor receptors, azbestos, immunotherapy, chemotherapy, genomic analysis, infigratinib
Published in DiRROS: 07.10.2020; Views: 12113; Downloads: 1021
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Training of deep neural networks for the generation of dynamic movement primitives
Rok Pahič, Barry Ridge, Andrej Gams, Jun Morimoto, Aleš Ude, 2020, original scientific article

Published in DiRROS: 10.09.2020; Views: 1741; Downloads: 892
.pdf Full text (1,42 MB)

100.
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