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Souto-Miranda S, Saraiva I, Spruit MA, Marques A. Core outcome set for pulmonary rehabilitation of patients with COPD: results of a modified Delphi survey. Thorax 2023; 78:1240-1247. [PMID: 37758457 DOI: 10.1136/thorax-2023-220522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
INTRODUCTION There is high heterogeneity of outcomes and measures reported in pulmonary rehabilitation (PR) trials of people with chronic obstructive pulmonary disease (COPD). This hinders study comparability and benchmarking of PR. We have developed a core outcome set (COS) to overcome these challenges. METHODS This study was informed by a systematic review and two qualitative studies and had patient involvement since its inception. A two-round Delphi survey was available in seven languages. Outcomes (n=63) scored 7-9 (crucial) by ≥70% of the participants and 1-3 (not that important) by ≤15% of participants from both groups in the Likert scale were automatically included in the COS, while outcomes that were considered crucial by only one of the groups were further discussed by the authors in a meeting. RESULTS A total of 299 people (n=229 healthcare professionals/researchers/policy-makers; n=70 people with COPD and informal caregivers) participated in the survey (83% retention), which covered 29 countries/five continents. After the second round, six outcomes were included and three were added in the meeting. The final COS contains dyspnoea, fatigue, functional exercise capacity, health-related quality of life, health behaviours/lifestyle, knowledge about the disease, lower limb muscle function, personal goals and problematic activities of daily living. CONCLUSION A COS for PR of people with COPD is now available and can be used by different stakeholders to improve consistency and comparability of studies, benchmark PR and improve the quality of care provided. Future research should establish the core measures and investigate the uptake of this COS.
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Affiliation(s)
- Sara Souto-Miranda
- Respiratory Research and Rehabilitation Laboratory (Lab3R), School of Health Sciences (ESSUA), University of Aveiro, Aveiro, Portugal
- Department of Respiratory Medicine, Maastricht University Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
- Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal
- Department of Medical Sciences (DCM), University of Aveiro, Aveiro, Portugal
| | | | - Martijn A Spruit
- Department of Respiratory Medicine, Maastricht University Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
- Department of Research and Development, Ciro, Horn, The Netherlands
| | - Alda Marques
- Respiratory Research and Rehabilitation Laboratory (Lab3R), School of Health Sciences (ESSUA), University of Aveiro, Aveiro, Portugal
- Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal
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Keogh A, Mc Ardle R, Diaconu MG, Ammour N, Arnera V, Balzani F, Brittain G, Buckley E, Buttery S, Cantu A, Corriol-Rohou S, Delgado-Ortiz L, Duysens J, Forman-Hardy T, Gur-Arieh T, Hamerlijnck D, Linnell J, Leocani L, McQuillan T, Neatrour I, Polhemus A, Remmele W, Saraiva I, Scott K, Sutton N, van den Brande K, Vereijken B, Wohlrab M, Rochester L. Mobilizing Patient and Public Involvement in the Development of Real-World Digital Technology Solutions: Tutorial. J Med Internet Res 2023; 25:e44206. [PMID: 37889531 PMCID: PMC10638632 DOI: 10.2196/44206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 08/09/2023] [Accepted: 08/31/2023] [Indexed: 10/28/2023] Open
Abstract
Although the value of patient and public involvement and engagement (PPIE) activities in the development of new interventions and tools is well known, little guidance exists on how to perform these activities in a meaningful way. This is particularly true within large research consortia that target multiple objectives, include multiple patient groups, and work across many countries. Without clear guidance, there is a risk that PPIE may not capture patient opinions and needs correctly, thereby reducing the usefulness and effectiveness of new tools. Mobilise-D is an example of a large research consortium that aims to develop new digital outcome measures for real-world walking in 4 patient cohorts. Mobility is an important indicator of physical health. As such, there is potential clinical value in being able to accurately measure a person's mobility in their daily life environment to help researchers and clinicians better track changes and patterns in a person's daily life and activities. To achieve this, there is a need to create new ways of measuring walking. Recent advancements in digital technology help researchers meet this need. However, before any new measure can be used, researchers, health care professionals, and regulators need to know that the digital method is accurate and both accepted by and produces meaningful outcomes for patients and clinicians. Therefore, this paper outlines how PPIE structures were developed in the Mobilise-D consortium, providing details about the steps taken to implement PPIE, the experiences PPIE contributors had within this process, the lessons learned from the experiences, and recommendations for others who may want to do similar work in the future. The work outlined in this paper provided the Mobilise-D consortium with a foundation from which future PPIE tasks can be created and managed with clearly defined collaboration between researchers and patient representatives across Europe. This paper provides guidance on the work required to set up PPIE structures within a large consortium to promote and support the creation of meaningful and efficient PPIE related to the development of digital mobility outcomes.
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Affiliation(s)
- Alison Keogh
- Insight Centre Data Analytics, University College Dublin, Dublin4, Ireland
- School of Medicine, Trinity College Dublin, Dublin2, Ireland
| | - Ríona Mc Ardle
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom
| | - Mara Gabriela Diaconu
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Nadir Ammour
- Clinical Science and Operations, Global Development, Sanofi Research & Development, Chilly-Mazarin, France
| | - Valdo Arnera
- Clario, Clario Holdings Inc, Geneva, Switzerland
| | - Federica Balzani
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Gavin Brittain
- Department of Clinical Neurology, Sheffield Teaching Hospitals National Health Service, Foundation Trust, Sheffield, United Kingdom
- Sheffield Institute for Translational Neuroscience, The University of Sheffield, Sheffield, United Kingdom
| | - Ellen Buckley
- Department of Mechanical Engineering, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in Silico Medicine, University of Sheffield, Sheffield, United Kingdom
| | - Sara Buttery
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Alma Cantu
- School of Computer Science, Newcastle University, Newcastle, United Kingdom
| | | | - Laura Delgado-Ortiz
- Non-Communicable Diseases and Environment Programme, ISGlobal, Barcelona, Spain
- Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Centro de Investigación Biomedical en Red Epidemiologia y Salud Publica, Barcelona, Spain
| | - Jacques Duysens
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Tom Forman-Hardy
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Tova Gur-Arieh
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | | | - John Linnell
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Letizia Leocani
- Department of Neurology, San Raffele University, Milan, Italy
| | - Tom McQuillan
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Isabel Neatrour
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom
| | - Ashley Polhemus
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Werner Remmele
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Isabel Saraiva
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | - Kirsty Scott
- Department of Mechanical Engineering, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in Silico Medicine, University of Sheffield, Sheffield, United Kingdom
| | - Norman Sutton
- Mobilise-D Patient and Public Advisory Group, Newcastle, United Kingdom
| | | | - Beatrix Vereijken
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Martin Wohlrab
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany
- University of Tuebingen, Tuebingen, Germany
| | - Lynn Rochester
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom
- Newcastle Upon Tyne Hospitals National Health Service Foundation Trust, Newcastle, United Kingdom
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Mathioudakis AG, Abroug F, Agusti A, Ananth S, Bakke P, Bartziokas K, Beghe B, Bikov A, Bradbury T, Brusselle G, Cadus C, Coleman C, Contoli M, Corlateanu A, Corlateanu O, Criner GJ, Csoma B, Emelyanov A, Faner R, Fernandez Romero G, Hammouda Z, Horváth P, Huerta Garcia A, Jacobs M, Jenkins C, Joos G, Kharevich O, Kostikas K, Lapteva E, Lazar Z, Leuppi JD, Liddle C, Linnell J, López-Giraldo A, McDonald VM, Nielsen R, Papi A, Saraiva I, Sergeeva G, Sioutkou A, Sivapalan P, Stovold E, Wang H, Wen F, Yorke J, Williamson PR, Vestbo J, Jensen JU. ERS statement: a core outcome set for clinical trials evaluating the management of COPD exacerbations. Eur Respir J 2022; 59:2102006. [PMID: 34649975 DOI: 10.1183/13993003.02006-2021] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/03/2021] [Indexed: 02/05/2023]
Abstract
Clinical trials evaluating the management of acute exacerbations of COPD assess heterogeneous outcomes, often omitting those that are clinically relevant or more important to patients. We have developed a core outcome set, a consensus-based minimum set of important outcomes that we recommend are evaluated in all future clinical trials on exacerbations management, to improve their quality and comparability. COPD exacerbations outcomes were identified through methodological systematic reviews and qualitative interviews with 86 patients from 11 countries globally. The most critical outcomes were prioritised for inclusion in the core outcome set through a two-round Delphi survey completed by 1063 participants (256 patients, 488 health professionals and 319 clinical academics) from 88 countries in five continents. Two global, multi-stakeholder, virtual consensus meetings were conducted to 1) finalise the core outcome set and 2) prioritise a single measurement instrument to be used for evaluating each of the prioritised outcomes. Consensus was informed by rigorous methodological systematic reviews. The views of patients with COPD were accounted for at all stages of the project. Survival, treatment success, breathlessness, quality of life, activities of daily living, the need for a higher level of care, arterial blood gases, disease progression, future exacerbations and hospital admissions, treatment safety and adherence were all included in the core outcome set. Focused methodological research was recommended to further validate and optimise some of the selected measurement instruments. The panel did not consider the prioritised set of outcomes and associated measurement instruments to be burdensome for patients and health professionals to use.
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Affiliation(s)
- Alexander G Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- The North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
- A.G. Mathioudakis and J-U. Jensen are the co-chairs of the COS-AECOPD ERS task force
| | | | - Alvar Agusti
- Respiratory Institute, Hospital Clinic and Catedra de Salud Respiratoria, University of Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), National Spanish Network for Respiratory Research (CIBERES), Barcelona, Spain
| | | | - Per Bakke
- Dept of Clinical Science, University of Bergen, Bergen, Norway
| | | | - Bianca Beghe
- Section of Respiratory Diseases, Dept of Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Andras Bikov
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- The North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Thomas Bradbury
- The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Guy Brusselle
- Depts of Epidemiology and Respiratory Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
- Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Cordula Cadus
- University Department of Medicine, Cantonal Hospital Basell and Liestal, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | | | - Marco Contoli
- Research Center on Asthma and COPD, Dept of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Alexandru Corlateanu
- Dept of Respiratory Medicine, State University of Medicine and Pharmacy 'Nicolae Testemitanu', Chisinau, Moldova
| | - Olga Corlateanu
- Dept of Internal Medicine, State University of Medicine and Pharmacy 'Nicolae Testemitanu', Chisinau, Moldova
| | - Gerard J Criner
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Balazs Csoma
- Dept of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Alexander Emelyanov
- Dept of Respiratory Medicine and Allergy, North-Western Medical University St Petersburg, St Petersburg, Russian Federation
| | - Rosa Faner
- Respiratory Institute, Hospital Clinic and Catedra de Salud Respiratoria, University of Barcelona, Barcelona, Spain
| | - Gustavo Fernandez Romero
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | | | - Peter Horváth
- Dept of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Arturo Huerta Garcia
- Respiratory Institute, Hospital Clinic and Catedra de Salud Respiratoria, University of Barcelona, Barcelona, Spain
- Respiratory Intensive Care Division, Clinica Sagrada Familia, Barcelona, Spain
| | - Michael Jacobs
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Christine Jenkins
- The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Guy Joos
- Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Olga Kharevich
- Dept of Pulmonology and Tuberculosis, Belarusian Medical Academy of Postgraduate Education, Minsk Belarus
| | - Konstantinos Kostikas
- Respiratory Medicine Dept, University of Ioannina School of Medicine, Ioannina, Greece
| | - Elena Lapteva
- Dept of Pulmonology and Tuberculosis, Belarusian Medical Academy of Postgraduate Education, Minsk Belarus
| | - Zsofia Lazar
- Dept of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Joerg D Leuppi
- University Department of Medicine, Cantonal Hospital Basell and Liestal, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | | | | | - Alejandra López-Giraldo
- Respiratory Institute, Hospital Clinic and Catedra de Salud Respiratoria, University of Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), National Spanish Network for Respiratory Research (CIBERES), Barcelona, Spain
| | - Vanessa M McDonald
- Dept of Respiratory and Sleep Medicine, Medical and Interventional Services, John Hunter Hospital, Hunter New England Local Health District, New Lambton Heights, Australia
- Priority Research Centre for Healthy Lungs, University of Newcastle, Callaghan, Australia
- School of Nursing and Midwifery, University of Newcastle, Callaghan, Australia
| | - Rune Nielsen
- Dept of Clinical Science, University of Bergen, Bergen, Norway
- Dept of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
| | - Alberto Papi
- Research Center on Asthma and COPD, Dept of Medical Sciences, University of Ferrara, Ferrara, Italy
| | | | - Galina Sergeeva
- Dept of Respiratory Medicine and Allergy, North-Western Medical University St Petersburg, St Petersburg, Russian Federation
| | - Agni Sioutkou
- Respiratory Medicine Dept, University of Ioannina School of Medicine, Ioannina, Greece
| | - Pradeesh Sivapalan
- Section of Respiratory Medicine, Dept of Internal Medicine, Herlev-Gentofte Hospital, Hellerup, Denmark
- Dept of Internal Medicine, Zealand University Hospital, Roskilde, Denmark
| | - Elizabeth Stovold
- Cochrane Airways Group, Population Health Research Institute, St George's University of London, London, UK
| | - Hao Wang
- Dept of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China
| | - Fuqiang Wen
- Dept of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China
| | - Janelle Yorke
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Christie Patient Centred Research, The Christie NHS Foundation Trust, Manchester, UK
| | - Paula R Williamson
- MRC/NIHR Trials Methodology Research Partnership, Dept of Health Data Science, University of Liverpool (a member of Liverpool Health Partners), Liverpool, UK
| | - Jørgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- The North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Jens-Ulrik Jensen
- Section of Respiratory Medicine, Dept of Internal Medicine, Herlev-Gentofte Hospital, Hellerup, Denmark
- Institute of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- A.G. Mathioudakis and J-U. Jensen are the co-chairs of the COS-AECOPD ERS task force
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Gomes RE, Saraiva I, Morais-Almeida M. Awareness and education in lung diseases: Are we reaching the target? Pulmonology 2022; 28:330-332. [DOI: 10.1016/j.pulmoe.2022.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 10/18/2022] Open
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Sá MFT, Castro V, Gomes AI, Morais DFS, Silva Braga RVPS, Saraiva I, Souza-Chaves BM, Park M, Fernández-Fernández V, Rodil R, Montes R, Quintana JB, Vilar VJP. Tracking pollutants in a municipal sewage network impairing the operation of a wastewater treatment plant. Sci Total Environ 2022; 817:152518. [PMID: 34995583 DOI: 10.1016/j.scitotenv.2021.152518] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/26/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
This work provides a screening of organic contaminants and characterization of the dissolved organic matter in the sewer network until the municipal wastewater treatment plant (WWTP), identifying the network areas with a higher degree of contamination and their impact on the WWTP performance, particularly in the activated sludge reactor. Three monitoring campaigns were carried out at six selected locations of the sewage system (PVZ-1, PVZ-2, PS-F, PS-VC, CP-VC, and PS-T), influent (WWTPINF) and effluent (WWTPEFF) of the WWTP. Advanced analytical techniques were employed, namely excitation/emission matrix fluorescence-parallel factor analysis (EEM-PARAFAC), size exclusion chromatography with organic carbon detector (SEC-OCD), and liquid chromatography with high-resolution-mass spectrometric detection (LC-HRMS). EEM-PARAFAC showed higher fluorescence intensity for the protein-like component (C2), particularly at CP-VC (near seafood industries) associated with the presence of surfactants (~50 mg/L). SEC-OCD highlighted the WWTP efficiency in removing low molecular weight acids and neutrals. LC-HRMS tentatively identified 108 compounds of emerging concern (CEC) and similar detection patterns were obtained for all wastewater samples, except for PVZ-2 (lower detection), many of which occurred in the effluent. Eight CECs included on relevant Watch-Lists were detected in all WWTPEFF samples. Furthermore, 111 surfactants were detected, the classes more frequently found being alcohol ethoxylates (AEOs), nonylphenol polyethoxylates (NPEOs) and linear alkylbenzene sulphonates (LAS). The continuous presence of LAS and NPEOs allied to surfactants concentrations in the WWTPINF of 15-20 mg/L, with CP-VC location (linked with food industries) as an important contributor, explain the morphological changes in the activated sludge and high LAS content in the dewatered sludge, which may have impacted WWTP performance.
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Affiliation(s)
- Mariana F T Sá
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Verónica Castro
- Department of Analytical Chemistry, Nutrition and Food Sciences, Institute of Research on Chemical and Biological Analysis (IAQBUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ana I Gomes
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Daniela F S Morais
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Rui V P S Silva Braga
- Efacec Engenharia e Sistemas S.A. (Unidade de Negócios Ambiente), Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4474-907 Moreira da Maia, Portugal
| | - Isabel Saraiva
- Efacec Engenharia e Sistemas S.A. (Unidade de Negócios Ambiente), Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4474-907 Moreira da Maia, Portugal
| | - Bianca M Souza-Chaves
- Department of Chemical & Environmental Engineering, University of Arizona, 1133 E James E Rogers Way, Harshbarger 108, Tucson, AZ 85721-0011, USA; CNPq - National Council for Scientific and Technological Development, Brazil
| | - Minkyu Park
- Department of Chemical & Environmental Engineering, University of Arizona, 1133 E James E Rogers Way, Harshbarger 108, Tucson, AZ 85721-0011, USA
| | - Victoria Fernández-Fernández
- Department of Analytical Chemistry, Nutrition and Food Sciences, Institute of Research on Chemical and Biological Analysis (IAQBUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Rosario Rodil
- Department of Analytical Chemistry, Nutrition and Food Sciences, Institute of Research on Chemical and Biological Analysis (IAQBUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Rosa Montes
- Department of Analytical Chemistry, Nutrition and Food Sciences, Institute of Research on Chemical and Biological Analysis (IAQBUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - José Benito Quintana
- Department of Analytical Chemistry, Nutrition and Food Sciences, Institute of Research on Chemical and Biological Analysis (IAQBUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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Mathioudakis AG, Abroug F, Agusti A, Ananth S, Bakke P, Bartziokas K, Beghe B, Bikov A, Bradbury T, Brusselle G, Cadus C, Coleman C, Contoli M, Corlateanu A, Corlateanu O, Criner GJ, Csoma B, Emelyanov A, Faner R, Fernandez Romero G, Hammouda Z, Horváth P, Huerta Garcia A, Jacobs M, Jenkins C, Joos G, Kharevich O, Kostikas K, Lapteva E, Lazar Z, Leuppi JD, Liddle C, Linnell J, López-Giraldo A, McDonald VM, Nielsen R, Papi A, Saraiva I, Sergeeva G, Sioutkou A, Sivapalan P, Stovold E, Wang H, Wen F, Yorke J, Williamson PR, Vestbo J, Jensen JU. ERS Statement: A core outcome set for clinical trials evaluating the management of chronic obstructive pulmonary disease (COPD) exacerbations. Eur Respir J 2021. [DOI: doi.org/10.1183/13993003.02006-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Clinical trials evaluating the management of acute exacerbations of COPD assess heterogeneous outcomes, often omitting those that are clinically relevant or more important to patients. We have developed a core outcome set, a consensus-based minimum set of important outcomes that we recommend are evaluated in all future clinical trials on exacerbations management, to improve their quality and comparability. COPD exacerbations outcomes were identified through methodological systematic reviews and qualitative interviews with 86 patients from 11 countries globally. The most critical outcomes were prioritized for inclusion in the core outcome set through a two-round Delphi survey that was completed by 1,063 participants (256 patients, 488 health professionals and 319 clinical academics) from 88 countries in 5 continents. Two global, multi-stakeholder, virtual consensus meetings were conducted to (i) finalize the core outcome set and (ii) prioritize a single measurement instrument to be used for evaluating each of the prioritized outcomes. Consensus was informed by rigorous methodological systematic reviews. The views of patients with COPD were accounted for in all stages of the project. Survival, treatment success, breathlessness, quality of life, activities of daily living, need for higher level of care, arterial blood gases, disease progression, future exacerbations and hospital admissions, treatment safety and adherence were all included in the core outcome set. Focused methodological research was recommended to further validate and optimize some of the selected measurement instruments. The panel did not consider the prioritized set of outcomes and associated measurement instruments burdensome for patients and health professionals to use.
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7
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Powell P, Saggu R, Jones S, Clari M, Saraiva I, Hardavella G, Hansen K, Pinnock H. Discussing treatment burden. Breathe (Sheff) 2021; 17:200284. [PMID: 34295397 PMCID: PMC8291916 DOI: 10.1183/20734735.0284-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/13/2021] [Indexed: 02/04/2023] Open
Abstract
Treatment burden is defined as “the workload of healthcare and its effect on patient functioning and well-being” [1, 2]. It has also been defined as “the self-care practices that patients with chronic illness must perform to respond to the requirements of their healthcare providers, as well as the impact that these practices have on patient functioning and well-being” [3]. In this issue of Breathe, there are several articles addressing treatment burden from different perspectives. This Viewpoint article focusses on the discussions between the patient and their healthcare professional (HCP). What are the important topics to cover in discussions about treatment burden? What are the barriers to these discussions? What facilitates a productive conversation about treatment burden? The authors of this article include three patients (with asthma, COPD and idiopathic pulmonary fibrosis (IPF), four HCPs representing different specialties (primary care, secondary and tertiary care, nursing and pharmacy) and a representative of the European Lung Foundation (ELF). This article is based on a video discussion between the authors; it was then refined via e-mail by all the authors. Healthcare professionals should help patients to reach informed decisions about treatments in order to maximise benefits while minimising treatment burdenhttps://bit.ly/2XRtRPK
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Affiliation(s)
| | - Ravijyot Saggu
- University College London Hospitals NHS Foundation Trust, London UK
| | - Steve Jones
- European Lung Foundation, Sheffield, UK.,EU IPFF, Brussels, Belgium
| | - Marco Clari
- Action for Pulmonary Fibrosis (APF), Peterborough, UK
| | - Isabel Saraiva
- Dept of Public Health and Pediatrics, University of Torino, Turin, Italy
| | - Georgia Hardavella
- Associaçă Portuguesa de Pessoas com DPOC e outras Doenças Respiratórias Crónicas (RESPIRA), Lisbon, Portugal
| | - Kjeld Hansen
- European Lung Foundation, Sheffield, UK.,9th Dept of Respiratory Medicine, Athens Chest Diseases Hospital Sotiria, Athens, Greece
| | - Hilary Pinnock
- Dept of Technology, Kristiania University College, Oslo, Norway
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Abstract
For decades, there has been gender imbalance when talking about different medical conditions. One key factor is that the “typical patient” has often been presented as male in descriptions and associated imagery. These thoughts regarding the “textbook patient” or the “typical medical case” are what creates health discrepancies and a dismissive attitude to other groups of individuals. Men and women should be equally represented in medical literature, medical artwork, clinical trials, etc. to allow for equal representation of both genders across all platforms. Creating a definition of a patient that all genders can relate to regarding their health is extremely important for the patient's own engagement with their health. Health inequalities regarding gender are extremely prevalent, and specifically in conditions such as COPD. No woman should ever be dismissed in regard to their health and underlying medical history.https://bit.ly/2X7Klmd
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Affiliation(s)
- Emma R McIvor
- Queen's University Belfast School of Medicine, Dentistry and Biomedical Sciences, Belfast, UK
| | | | | | - R Andrew McIvor
- Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
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9
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Mathioudakis AG, Abroug F, Agusti A, Bakke P, Bartziokas K, Beghe B, Bikov A, Bradbury T, Brusselle G, Cadus C, Coleman C, Contoli M, Corlateanu A, Corlateanu O, Criner G, Csoma B, Emelyanov A, Faner R, Romero GF, Hammouda Z, Horváth P, Huerta AG, Jacobs M, Jenkins C, Joos G, Kharevich O, Kostikas K, Lapteva E, Lazar Z, Leuppi JD, Liddle C, López-Giraldo A, McDonald VM, Nielsen R, Papi A, Saraiva I, Sergeeva G, Sioutkou A, Sivapalan P, Stovold E, Wang H, Wen F, Yorke J, Williamson PR, Vestbo J, Jensen JU. Core outcome set for the management of acute exacerbations of chronic obstructive pulmonary disease: the COS-AECOPD ERS Task Force study protocol. ERJ Open Res 2020; 6:00193-2020. [PMID: 32964006 PMCID: PMC7487360 DOI: 10.1183/23120541.00193-2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/15/2020] [Indexed: 02/05/2023] Open
Abstract
Randomised controlled trials (RCTs) on the management of COPD exacerbations evaluate heterogeneous outcomes, often omitting those that are clinically important and patient relevant. This limits their usability and comparability. A core outcome set (COS) is a consensus-based minimum set of clinically important outcomes that should be evaluated in all RCTs in specific areas of health care. We present the study protocol of the COS-AECOPD ERS Task Force, aiming to develop a COS for COPD exacerbation management, that could remedy these limitations. For the development of this COS we follow standard methodology recommended by the COMET initiative. A comprehensive list of outcomes is assembled through a methodological systematic review of the outcomes reported in relevant RCTs. Qualitative research with patients with COPD will also be conducted, aiming to identify additional outcomes that may be important to patients, but are not currently addressed in clinical research studies. Prioritisation of the core outcomes will be facilitated through an extensive, multi-stakeholder Delphi survey with a global reach. Selection will be finalised in an international, multi-stakeholder meeting. For every core outcome, we will recommend a specific measurement instrument and standardised time points for evaluation. Selection of instruments will be based on evidence-informed consensus. Our work will improve the quality, usability and comparability of future RCTs on the management of COPD exacerbations and, ultimately, the care of patients with COPD. Multi-stakeholder engagement and societal support by the European Respiratory Society will raise awareness and promote implementation of the COS.
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Affiliation(s)
- Alexander G Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,The North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK.,Co-chairs of the COS-AECOPD ERS Task Force
| | | | - Alvar Agusti
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), National Spanish Network for Respiratory Research (CIBERES), Barcelona, Spain.,Respiratory Institute, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Per Bakke
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | | | - Bianca Beghe
- Section of Respiratory Diseases, Dept of Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Andras Bikov
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,The North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Thomas Bradbury
- The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Guy Brusselle
- Depts of Epidemiology and Respiratory Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.,Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Cordula Cadus
- University Department of Medicine, Cantonal Hospital Basell and Liestal, Basell, Switzerland.,Faculty of Medicine, University of Basel, Basel, Switzerland
| | | | - Marco Contoli
- Research Center on Asthma and COPD, Dept of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Alexandru Corlateanu
- Dept of Respiratory Medicine, State University of Medicine and Pharmacy "Nicolae Testemitanu", Chisinau, Moldova
| | - Olga Corlateanu
- Department of Internal Medicine, State University of Medicine and Pharmacy "Nicolae Testemitanu", Chisinau, Moldova
| | - Gerard Criner
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Balazs Csoma
- Dept of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Alexander Emelyanov
- Dept of Respiratory Medicine and Allergy, North-Western Medical University, St Petersburg, Russian Federation
| | - Rosa Faner
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), National Spanish Network for Respiratory Research (CIBERES), Barcelona, Spain
| | - Gustavo Fernandez Romero
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | | | - Peter Horváth
- Dept of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Arturo Garcia Huerta
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), National Spanish Network for Respiratory Research (CIBERES), Barcelona, Spain.,Respiratory Intensive Care Division, Clinica Sagrada Familia, Barcelona, Spain
| | - Michael Jacobs
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Christine Jenkins
- The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Guy Joos
- Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Olga Kharevich
- Dept of Pulmonology and Tuberculosis, Belarusian Medical Academy of Postgraduate Education, Minsk, Belarus
| | - Konstantinos Kostikas
- Respiratory Medicine Dept, University of Ioannina School of Medicine, Ioannina, Greece
| | - Elena Lapteva
- Dept of Pulmonology and Tuberculosis, Belarusian Medical Academy of Postgraduate Education, Minsk, Belarus
| | - Zsofia Lazar
- Dept of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Joerg D Leuppi
- University Department of Medicine, Cantonal Hospital Basell and Liestal, Basell, Switzerland.,Faculty of Medicine, University of Basel, Basel, Switzerland
| | | | - Alejandra López-Giraldo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), National Spanish Network for Respiratory Research (CIBERES), Barcelona, Spain.,Respiratory Institute, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Vanessa M McDonald
- Dept of Respiratory and Sleep Medicine, Medical and Interventional Services, John Hunter Hospital, Hunter New England Local Health District, New Lambton Heights, Australia.,Priority Research Centre for Healthy Lungs, University of Newcastle, Callaghan, Australia.,School of Nursing and Midwifery, University of Newcastle, Callaghan, Australia
| | - Rune Nielsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Dept of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
| | - Alberto Papi
- Research Center on Asthma and COPD, Dept of Medical Sciences, University of Ferrara, Ferrara, Italy
| | | | - Galina Sergeeva
- Dept of Respiratory Medicine and Allergy, North-Western Medical University, St Petersburg, Russian Federation
| | - Agni Sioutkou
- Respiratory Medicine Dept, University of Ioannina School of Medicine, Ioannina, Greece
| | - Pradeesh Sivapalan
- Section of Respiratory Medicine, Dept of Internal Medicine, Herlev-Gentofte Hospital, Hellerup, Denmark.,Dept of Internal Medicine, Zealand University Hospital, Roskilde, Denmark
| | - Elizabeth Stovold
- Cochrane Airways Group, Population Health Research Institute, St George's University of London, London, UK
| | - Hao Wang
- Dept of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China
| | - Fuqiang Wen
- Dept of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China
| | - Janelle Yorke
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.,Christie Patient Centred Research, The Christie NHS Foundation Trust, Manchester, UK
| | - Paula R Williamson
- Liverpool Clinical Trials Centre, Dept of Biostatistics, University of Liverpool, Liverpool, UK.,MRC North West Hub for Trials Methodology Research, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Jørgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,The North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Jens-Ulrik Jensen
- Section of Respiratory Medicine, Dept of Internal Medicine, Herlev-Gentofte Hospital, Hellerup, Denmark.,CHIP and PERSIMUNE, Dept of Infectious Diseases, Rigshospitalet, Copenhagen, Denmark.,Institute of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.,Co-chairs of the COS-AECOPD ERS Task Force
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10
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Pisinger C, Dagli E, Filippidis FT, Hedman L, Janson C, Loukides S, Ravara S, Saraiva I, Vestbo J. ERS and tobacco harm reduction. Eur Respir J 2019; 54:54/6/1902009. [DOI: 10.1183/13993003.02009-2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 10/14/2019] [Indexed: 02/06/2023]
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11
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Abstract
There are currently 3.5 million people in Europe who require medical oxygen, and as life expectancies increase, this figure is likely to grow. At the same time, air travel is becoming more accessible to a wider range of people, as costs of flights fall, and airlines and airports make improvements to the accessibility of their services. People who need medical oxygen to fly experience a wide range of difficulties when planning to travel by plane, and sometimes during or after the flight. A European Commission Regulation (EC No 1107/2006) sets the standard for airlines when it comes to making air travel accessible, but healthcare professionals and oxygen providers can both help patients to navigate the various requirements for using medical oxygen when travelling. In this review, we discuss the journey of the patient planning to travel by air, from initial consultation and fit-to-fly test, through to planning their air travel and oxygen supply, travelling, and arriving at their destination. We also highlight some common problems at each stage and suggest points for healthcare professionals to discuss with patients. Airlines have a responsibility to provide equal access to passengers who require medical oxygen, but many barriers remain. Healthcare professionals and oxygen suppliers can help patients plan their journey and reduce the risk associated with air travel.http://bit.ly/30wkCU4
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12
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Gaga M, Powell P, Almagro M, Tsiligianni I, Loukides S, Roca J, Cullen M, Simonds AK, Ward B, Saraiva I, Troosters T, Robalo Cordeiro C. ERS Presidential Summit 2018: multimorbidities and the ageing population. ERJ Open Res 2019; 5:00126-2019. [PMID: 31579675 PMCID: PMC6759575 DOI: 10.1183/23120541.00126-2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/29/2019] [Indexed: 11/12/2022] Open
Abstract
As the average age of the population increases, so will the prevalence of chronic respiratory diseases and associated multimorbidity. This will result in a more complex clinical environment. Part of the solution will be to allow patients to be co-creators in the design of their care. It will also require clinicians to shift in their current approaches to care, step out of the disease- or pathology-oriented approach and embrace new ideas. In an effort to prepare the respiratory community for the challenge, we reflect on concepts to empower patients via multidisciplinary systems, new technologies and transition from end-of-life care to advanced care planning.
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Affiliation(s)
- Mina Gaga
- 7th Resp. Med. Dept and Asthma Center, Athens, Greece
| | | | - Marta Almagro
- ELF Bronchiectasis Patient Advisory Committee, Sheffield, UK
| | | | | | - Josep Roca
- University of Barcelona, Barcelona, Spain
| | | | | | - Brian Ward
- European Respiratory Society, Brussels, Belgium
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13
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Horváth I, Barry M, Brusselle G, Burghuber OC, Bush A, Robalo Cordeiro C, Gaga M, Gratziou C, Saraiva I, Stolz D, Troosters T, Welte T, Migliori GB, Joos G. The European Respiratory Society's 10 Principles for Lung Health. Eur Respir J 2018; 52:52/5/1801373. [PMID: 30498051 DOI: 10.1183/13993003.01373-2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/12/2018] [Indexed: 11/05/2022]
Affiliation(s)
| | - Maeve Barry
- European Respiratory Society, Brussels, Belgium
| | - Guy Brusselle
- Ghent University Hospital, Dept of Respiratory Diseases, Ghent, Belgium
| | | | - Andrew Bush
- Royal Brompton and Harefield NHS Foundation Trust, London, UK
| | | | - Mina Gaga
- Athens Chest Hospital Sotiria, 7th Respiratory Medicine Dept, Athens, Greece
| | | | | | - Daiana Stolz
- University Hospital Basel, Pulmonary Care Division, Basel, Switzerland
| | | | - Tobias Welte
- University of Hannover, Dept of Respiratory Medicine, Member of the German Center of Lung Research (DZL), Hannover, Germany
| | | | - Guy Joos
- Ghent University Hospital, Dept of Respiratory Diseases, Ghent, Belgium
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14
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Farr A, Gaga M, Welte T, Troosters T, Joos G, Robalo Cordeiro C, Burghuber OC, Brusselle G, Gratziou CG, Bush A, Saraiva I, Pannetier C, Stolz D. The European Respiratory Society: ensuring excellence through education best practice. Eur Respir J 2018; 52:52/3/1801248. [PMID: 30219751 DOI: 10.1183/13993003.01248-2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 07/27/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Amy Farr
- European Respiratory Society, Lausanne, Switzerland
| | - Mina Gaga
- 7th Respiratory Medicine Dept, Athens Chest Hospital Sotiria, Athens, Greece
| | - Tobias Welte
- Pulmonary Medicine, University of Hannover, Hannover, Germany
| | - Thierry Troosters
- Dept of Rehabilitation Sciences, University of Leuven, Leuven, Belgium
| | - Guy Joos
- Dept of Respiratory Diseases, Ghent University Hospital, Ghent, Belgium
| | | | | | - Guy Brusselle
- Dept of Respiratory Diseases, Ghent University Hospital, Ghent, Belgium
| | | | - Andrew Bush
- Paediatrics Section, National Heart and Lung Institute, London, UK.,Royal Brompton and Harefield NHS Foundation Trust, London, UK
| | | | | | - Daiana Stolz
- Pulmonary Care Division, University Hospital Basel, Basel, Switzerland
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15
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Powell P, Smyth D, Saraiva I, Lisspers K, Hardavella G, Fuertes J, Hill K. What do patients know? Education from the European Lung Foundation perspective. Breathe (Sheff) 2018. [PMID: 29515665 PMCID: PMC5831349 DOI: 10.1183/20734735.020217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The European Lung Foundation (ELF) is an organisation whose mission is to bring together the public and patients with respiratory professionals to improve lung health. A core part of all its activities focus on education: the education of patients on their condition, including how to prevent, treat and manage it; the education of healthcare professionals on how to improve work with patients and awareness about the issues that are important to patients; and education of the public and policy makers of the importance of lung health at a European level. ELF was founded and works in a unique partnership with the European Respiratory Society (ERS). This article has been written by the recent past Chairs and the new Chairs of three ELF committees (Council (D. Smyth and I. Saraiva), Professional Advisory Committee (K. Lisspers and G. Hardavella) and Patient Advisory Committee (J. Fuertes and K. Hill)) in order to reflect on ELF’s journey in this regard over recent years. In particular, it seems a good moment to assess the success and impact of the first patient Chair of ELF, Dan Smyth, and reflect on what this has meant for ELF’s educational activities, and what the future now looks like. A quick look at the importance of educating patients and healthcare professionals to strengthen the patient–professional partnership from the European Lung Foundation perspectivehttp://ow.ly/EZbg30hV01Q
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Affiliation(s)
| | - Dan Smyth
- European Lung Foundation, Sheffield, UK.,Irish Sleep Apnoea Trust, Dublin, Ireland
| | - Isabel Saraiva
- European Lung Foundation, Sheffield, UK.,RESPIRA, Lisbon, Portugal
| | - Karin Lisspers
- Dept of Public Health and Caring Sciences, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden
| | - Georgia Hardavella
- Dept of Respiratory Medicine and Allergy, King's College London, London, UK.,Dept of Respiratory Medicine, King's College Hospital, London, UK
| | | | - Kate Hill
- June Hancock Mesothelioma Research Fund, Sheffield, UK
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16
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Silva TFCV, Soares PA, Manenti DR, Fonseca A, Saraiva I, Boaventura RAR, Vilar VJP. An innovative multistage treatment system for sanitary landfill leachate depuration: Studies at pilot-scale. Sci Total Environ 2017; 576:99-117. [PMID: 27780104 DOI: 10.1016/j.scitotenv.2016.10.058] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 09/22/2016] [Accepted: 10/08/2016] [Indexed: 06/06/2023]
Abstract
In this work, an innovative methodology for the treatment of landfill leachates, after aerobic lagooning, is proposed and adjusted at pilot-scale. This methodology involves an aerobic activated sludge biological pre-oxidation (ASBO), a coagulation/sedimentation step (240mgFe3+/L, at pH4.2) and a photo-oxidation through a photo-Fenton (PF) reaction (60mg Fe2+, at pH2.8) combining solar and artificial light. The ASBO process applied to a leachate after aerobic lagooning, with high organic and nitrogen content (1.1-1.5gC/L; 0.8-3.0gN/L) and low biodegradability (BOD5/COD =0.07-0.13), is capable to oxidise 62-99% of the ammonium nitrogen, consuming only the affluent alkalinity (70-100%). The coagulation/sedimentation stage led to the humic acids precipitation, promoting a marked change in leachate colour, from dark-brown to yellowish-brown (related to fulvic acids), accompanied by a reduction of 60%, 58% and 88% on DOC, COD and TSS, respectively. The PF system promoted the degradation of the recalcitrant organic molecules into more easily biodegradable ones. According to Zahn-Wellens biodegradability test, a leachate with 419mg DOC/L after coagulation, would have to be photo-oxidized until DOC <256mg/L, consuming 117mM of H2O2 and 10.4kJ/L of accumulated UV energy, to achieve an effluent that can be biologically treated in compliance with the COD discharge limit (150mg O2/L) into water bodies. The biological process downstream from the photocatalytic system would promote a mineralization >60%. The PF step cost to treat 100m3/day of leachate was 6.41€/m3, combining 1339m2 of CPCs with 31 lamps.
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Affiliation(s)
- Tânia F C V Silva
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Petrick A Soares
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Diego R Manenti
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Amélia Fonseca
- Efacec Engenharia e Sistemas S.A. (Unidade de Negócios Ambiente), SA, Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4471-907 Moreira da Maia, Portugal
| | - Isabel Saraiva
- Efacec Engenharia e Sistemas S.A. (Unidade de Negócios Ambiente), SA, Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4471-907 Moreira da Maia, Portugal
| | - Rui A R Boaventura
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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17
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Silva TFCV, Ferreira R, Soares PA, Manenti DR, Fonseca A, Saraiva I, Boaventura RAR, Vilar VJP. Insights into solar photo-Fenton reaction parameters in the oxidation of a sanitary landfill leachate at lab-scale. J Environ Manage 2015; 164:32-40. [PMID: 26342264 DOI: 10.1016/j.jenvman.2015.08.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/17/2015] [Accepted: 08/21/2015] [Indexed: 06/05/2023]
Abstract
This work evaluates the effect of the main photo-Fenton (PF) reaction variables on the treatment of a sanitary landfill leachate collected at the outlet of a leachate treatment plant, which includes aerated lagooning followed by aerated activated sludge and a final coagulation-flocculation step. The PF experiments were performed in a lab-scale compound parabolic collector (CPC) photoreactor using artificial solar radiation. The photocatalytic reaction rate was determined while varying the total dissolved iron concentration (20-100 mg Fe(2+)/L), solution pH (2.0-3.6), operating temperature (10-50 °C), type of acid used for acidification (H2SO4, HCl and H2SO4 + HCl) and UV irradiance (22-68 W/m(2)). This work also tries to elucidate the role of ferric hydroxides, ferric sulphate and ferric chloride species, by taking advantage of ferric speciation diagrams, in the efficiency of the PF reaction when applied to leachate oxidation. The molar fraction of the most photoactive ferric species, FeOH(2+), was linearly correlated with the PF pseudo-first order kinetic constants obtained at different solution pH and temperature values. Ferric ion speciation diagrams also showed that the presence of high amounts of chloride ions negatively affected the PF reaction, due to the decrease of ferric ions solubility and scavenging of hydroxyl radicals for chlorine radical formation. The increment of the PF reaction rates with temperature was mainly associated with the increase of the molar fraction of FeOH(2+). The optimal parameters for the photo-Fenton reaction were: pH = 2.8 (acidification agent: H2SO4); T = 30 °C; [Fe(2+)] = 60 mg/L and UV irradiance = 44 WUV/m(2), achieving 72% mineralization after 25 kJUV/L of accumulated UV energy and 149 mM of H2O2 consumed.
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Affiliation(s)
- Tânia F C V Silva
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Rui Ferreira
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Petrick A Soares
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Diego R Manenti
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; Programa de Pós-Graduação em Engenharia Química da Universidade Estadual de Maringá, Av. Colombo 5790, Maringá-PR, Brazil
| | - Amélia Fonseca
- Efacec Engenharia e Sistemas S.A. (Unidade de Negócios Ambiente), SA, Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4471-907 Moreira da Maia, Portugal
| | - Isabel Saraiva
- Efacec Engenharia e Sistemas S.A. (Unidade de Negócios Ambiente), SA, Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4471-907 Moreira da Maia, Portugal
| | - Rui A R Boaventura
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vítor J P Vilar
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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18
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Moreira FC, Soler J, Fonseca A, Saraiva I, Boaventura RAR, Brillas E, Vilar VJP. Incorporation of electrochemical advanced oxidation processes in a multistage treatment system for sanitary landfill leachate. Water Res 2015; 81:375-87. [PMID: 26140989 DOI: 10.1016/j.watres.2015.05.036] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/08/2015] [Accepted: 05/19/2015] [Indexed: 05/21/2023]
Abstract
The current study has proved the technical feasibility of including electrochemical advanced oxidation processes (EAOPs) in a multistage strategy for the remediation of a sanitary landfill leachate that embraced: (i) first biological treatment to remove the biodegradable organic fraction, oxidize ammonium and reduce alkalinity, (ii) coagulation of the bio-treated leachate to precipitate humic acids and particles, followed by separation of the clarified effluent, and (iii) oxidation of the resulting effluent by an EAOP to degrade the recalcitrant organic matter and increase its biodegradability so that a second biological process for removal of biodegradable organics and nitrogen content could be applied. The influence of current density on an UVA photoelectro-Fenton (PEF) process was firstly assessed. The oxidation ability of various EAOPs such as electro-Fenton (EF) with two distinct initial total dissolved iron concentrations ([TDI]0), PEF and solar PEF (SPEF) was further evaluated and these processes were compared with their analogous chemical ones. A detailed assessment of the two first treatment stages was made and the biodegradability enhancement during the SPEF process was determined by a Zahn-Wellens test to define the ideal organics oxidation state to stop the EAOP and apply the second biological treatment. The best current density was 200 mA cm(-2) for a PEF process using a BDD anode, [TDI]0 of 60 mg L(-1), pH 2.8 and 20 °C. The relative oxidation ability of EAOPs increased in the order EF with 12 mg [TDI]0 L(-1) < EF with 60 mg [TDI]0 L(-1) < PEF with 60 mg [TDI]0 L(-1) ≤ SPEF with 60 mg [TDI]0 L(-1), using the abovementioned conditions. While EF process was much superior to the Fenton one, the superiority of PEF over photo-Fenton was less evident and SPEF attained similar degradation to solar photo-Fenton. To provide a final dissolved organic carbon (DOC) of 163 mg L(-1) to fulfill the discharge limits into the environment after a second biological process, 6.2 kJ L(-1) UV energy and 36 kWh m(-3) electrical energy were consumed using SPEF with a BDD anode at 200 mA cm(-2), 60 mg [TDI]0 L(-1), pH 2.8 and 20 °C.
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Affiliation(s)
- Francisca C Moreira
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - J Soler
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Amélia Fonseca
- Efacec Engenharia e Sistemas, S.A. (Unidade de Negócio Ambiente), Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4471-907 Moreira da Maia, Portugal
| | - Isabel Saraiva
- Efacec Engenharia e Sistemas, S.A. (Unidade de Negócio Ambiente), Rua Eng. Frederico Ulrich - Guardeiras, Apartado 3003, 4471-907 Moreira da Maia, Portugal
| | - Rui A R Boaventura
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Vítor J P Vilar
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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Carranca C, Castro IV, Figueiredo N, Redondo R, Rodrigues ARF, Saraiva I, Maricato R, Madeira MAV. Influence of tree canopy on N₂ fixation by pasture legumes and soil rhizobial abundance in Mediterranean oak woodlands. Sci Total Environ 2015; 506-507:86-94. [PMID: 25460942 DOI: 10.1016/j.scitotenv.2014.10.111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/29/2014] [Accepted: 10/31/2014] [Indexed: 06/04/2023]
Abstract
Symbiotic N2 fixation is of primordial significance in sustainable agro-forestry management as it allows reducing the use of mineral N in the production of mixed stands and by protecting the soils from degradation. Thereby, on a 2-year basis, N2 fixation was evaluated in four oak woodlands under Mediterranean conditions using a split-plot design and three replicates. (15)N technique was used for determination of N2 fixation rate. Variations in environmental conditions (temperature, rainfall, radiation) by the cork tree canopy as well as the age of stands and pasture management can cause great differences in vegetation growth, legume N2 fixation, and soil rhizobial abundance. In the present study, non-legumes dominated the swards, in particular beneath the tree canopy, and legumes represented only 42% of total herbage. A 2-fold biomass reduction was observed in the oldest sown pasture in relation to the medium-age sward (6 t DW ha(-1)yr(-1)). Overall, competition of pasture growth for light was negligible, but soil rhizobial abundance and symbiotic N2 fixation capacity were highly favored by this environmental factor in the spring and outside the influence of tree canopy. Nitrogen derived from the atmosphere was moderate to high (54-72%) in unsown and sown swards. Inputs of fixed N2 increased from winter to spring due to more favorable climatic conditions (temperature and light intensity) for both rhizobia and vegetation growths. Assuming a constant fixation rate at each seasonal period, N2 fixation capacity increased from about 0.10 kg N ha(-1) per day in the autumn-winter period to 0.15 kg N ha(-1) per day in spring. Belowground plant material contributed to 11% of accumulated N in pasture legumes and was not affected by canopy. Size of soil fixing bacteria contributed little to explain pasture legumes N.
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Affiliation(s)
- C Carranca
- INIAV, Qta Marquês, 2784-505 Oeiras, Portugal.
| | - I V Castro
- INIAV, Qta Marquês, 2784-505 Oeiras, Portugal
| | | | - R Redondo
- Laboratorio de Isotopos Estables, Universidade Autonoma, Madrid, Spain
| | - A R F Rodrigues
- Centro de Estudos Florestais, ISA/UL, Tapada Ajuda, 1349-017 Lisboa, Portugal
| | - I Saraiva
- INIAV, Qta Marquês, 2784-505 Oeiras, Portugal
| | - R Maricato
- INIAV, Qta Marquês, 2784-505 Oeiras, Portugal
| | - M A V Madeira
- Centro de Estudos Florestais, ISA/UL, Tapada Ajuda, 1349-017 Lisboa, Portugal
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Silva TFCV, Silva MEF, Cunha-Queda AC, Fonseca A, Saraiva I, Sousa MA, Gonçalves C, Alpendurada MF, Boaventura RAR, Vilar VJP. Multistage treatment system for raw leachate from sanitary landfill combining biological nitrification-denitrification/solar photo-Fenton/biological processes, at a scale close to industrial--biodegradability enhancement and evolution profile of trace pollutants. Water Res 2013; 47:6167-6186. [PMID: 23954067 DOI: 10.1016/j.watres.2013.07.036] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/17/2013] [Accepted: 07/23/2013] [Indexed: 06/02/2023]
Abstract
A multistage treatment system, at a scale close to the industrial, was designed for the treatment of a mature raw landfill leachate, including: a) an activated sludge biological oxidation (ASBO), under aerobic and anoxic conditions; b) a solar photo-Fenton process, enhancing the bio-treated leachate biodegradability, with and without sludge removal after acidification; and c) a final polishing step, with further ASBO. The raw leachate was characterized by a high concentration of humic substances (HS) (1211 mg CHS/L), representing 39% of the dissolved organic carbon (DOC) content, and a high nitrogen content, mainly in the form of ammonium nitrogen (>3.8 g NH4(+)-N/L). In the first biological oxidation step, a 95% removal of total nitrogen and a 39% mineralization in terms of DOC were achieved, remaining only the recalcitrant fraction, mainly attributed to HS (57% of DOC). Under aerobic conditions, the highest nitrification rate obtained was 8.2 mg NH4(+)-N/h/g of volatile suspended solids (VSS), and under anoxic conditions, the maximum denitrification rate obtained was 5.8 mg (NO2(-)-N + NO3(-)-N)/h/g VSS, with a C/N consumption ratio of 2.4 mg CH3OH/mg (NO2(-)-N + NO3(-)-N). The precipitation of humic acids (37% of HS) after acidification of the bio-treated leachate corresponds to a 96% DOC abatement. The amount of UV energy and H2O2 consumption during the photo-Fenton reaction was 30% higher in the experiment without sludge removal and, consequently, the reaction velocity was 30% lower. The phototreatment process led to the depletion of HS >80%, of low-molecular-weight carboxylate anions >70% and other organic micropollutants, thus resulting in a total biodegradability increase of >70%. The second biological oxidation allowed to obtain a final treated leachate in compliance with legal discharge limits regarding water bodies (with the exception of sulfate ions), considering the experiment without sludge. Finally, the high efficiency of the overall treatment process was further reinforced by the total removal percentages attained for the identified organic trace contaminants (>90%).
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Affiliation(s)
- Tânia F C V Silva
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Silva TFCV, Fonseca A, Saraiva I, Vilar VJP, Boaventura RAR. Biodegradability enhancement of a leachate after biological lagooning using a solar driven photo-Fenton reaction, and further combination with an activated sludge biological process, at pre-industrial scale. Water Res 2013; 47:3543-3557. [PMID: 23642652 DOI: 10.1016/j.watres.2013.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 03/16/2013] [Accepted: 04/05/2013] [Indexed: 06/02/2023]
Abstract
This work proposes an integrated leachate treatment strategy, combining a solar photo-Fenton reaction, to enhance the biodegradability of the leachate from an aerated lagoon, with an activated sludge process, under aerobic and anoxic conditions, to achieve COD target values and nitrogen content according to the legislation. The efficiency and performance of the photo-Fenton reaction, concerning a sludge removal step after acidification, defining the optimum phototreatment time to reach a biodegradable wastewater that can be further oxidized in a biological reactor and, activation sludge biological process, defining the nitrification and denitrification reaction rates, alkalinity balance and methanol dose necessary as external carbon source, was evaluated in the integrated system at a scale close to industrial. The pre-industrial plant presents a photocatalytic system with 39.52 m(2) of compound parabolic collectors (CPCs) and 2 m(3) recirculation tank and, an activated sludge biological reactor with 3 m(3) capacity. Leachate biodegradability enhancement by means of a solar driven photo-Fenton process was evaluated using direct biodegradability tests, as Zahn-Wellens method, and indirect measure according to average oxidation state (AOS), low molecular carboxylic acids content (fast biodegradable character) and humic substances (recalcitrant character) concentration. Due to high variability of leachate composition, UV absorbance on-line measurement was established as a useful parameter for photo-Fenton reaction control.
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Affiliation(s)
- Tânia F C V Silva
- LSRE - Laboratory of Separation and Reaction Engineering - Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Vilar VJP, Rocha EMR, Mota FS, Fonseca A, Saraiva I, Boaventura RAR. Treatment of a sanitary landfill leachate using combined solar photo-Fenton and biological immobilized biomass reactor at a pilot scale. Water Res 2011; 45:2647-2658. [PMID: 21411117 DOI: 10.1016/j.watres.2011.02.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 02/07/2011] [Accepted: 02/14/2011] [Indexed: 05/27/2023]
Abstract
A solar photo-Fenton process combined with a biological nitrification and denitrification system is proposed for the decontamination of a landfill leachate in a pilot plant using photocatalytic (4.16 m(2) of Compound Parabolic Collectors - CPCs) and biological systems (immobilized biomass reactor). The optimum iron concentration for the photo-Fenton reaction of the leachate is 60 mg Fe(2+) L(-1). The organic carbon degradation follows a first-order reaction kinetics (k = 0.020 L kJ(UV)(-1), r(0) = 12.5 mg kJ(UV)(-1)) with a H(2)O(2) consumption rate of 3.0 mmol H(2)O(2) kJ(UV)(-1). Complete removal of ammonium, nitrates and nitrites of the photo-pre-treated leachate was achieved by biological denitrification and nitrification, after previous neutralization/sedimentation of iron sludge (40 mL of iron sludge per liter of photo-treated leachate after 3 h of sedimentation). The optimum C/N ratio obtained for the denitrification reaction was 2.8 mg CH(3)OH per mg N-NO(3)(-), consuming 7.9 g/8.2 mL of commercial methanol per liter of leachate. The maximum nitrification rate obtained was 68 mg N-NH(4)(+) per day, consuming 33 mmol (1.3 g) of NaOH per liter during nitrification and 27.5 mmol of H(2)SO(4) per liter during denitrification. The optimal phototreatment energy estimated to reach a biodegradable effluent, considering Zahn-Wellens, respirometry and biological oxidation tests, at pilot plant scale, is 29.2 kJ(UV) L(-1) (3.3 h of photo-Fenton at a constant solar UV power of 30 W m(-2)), consuming 90 mM of H(2)O(2) when used in excess, which means almost 57% mineralization of the leachate, 57% reduction of polyphenols concentration and 86% reduction of aromatic content.
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Affiliation(s)
- Vítor J P Vilar
- LSRE - Laboratory of Separation and Reaction Engineering, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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Abstract
OBJECTIVE In palliative care, gastrostomies are used to provide nutritional support or to decompress the bowel. To evaluate what happened to the patients monitored at our palliative care unit (PCU) who underwent gastrostomy between October 1994 and January 2005, a retrospective audit was made. METHOD The charts of 154 patients were reviewed. RESULTS The most frequent reason why a patient underwent a gastrostomy was dysphagia due to head and neck and/or esophageal cancer. Only one patient underwent a drainage gastrostomy because of intestinal obstruction. Interventional radiology performed 96% of the gastrostomies. Early complications occurred in 53 patients (34%) who underwent the gastrostomy for feeding and the most common was local pain, usually mild. However, there was one death due to peritonitis, probably related with the procedure. Late complications also occurred in 53 patients and major complications occurred in 22 patients, the most common was extrusion. The median survival after the performance of the gastrostomy was 61 days (range 1 to 551 days). Nineteen patients (12%) survived 1 week or less, 28 (18%) between 8 and 30 days, 51 (33%) from 31 to 90 days, 53 (35%) 91 days or more, and one unknown. The patient who underwent a gastrostomy for bowel obstruction survived for only 7 days. One hundred and twenty-five patients (81%) died at the PCU, 26 (17%) at home, and four (3%) at other places.
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Affiliation(s)
- Ferraz Gonçalves
- Unidade de Cuidados Continuados, Instituto Português de Oncologia, Rua Dr António Bernardino de Almeida, Porto, Portugal.
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Michaud C, Saraiva I, Henry Y, Dodane M. [Tobacco: knowledge, reasoning and opinion of high school students in Doubs. Reflections on prevention]. Sante Publique 2003; 15:69-78. [PMID: 12806810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
The prevalence of smoking has increased among young people aged 14 to 18 between 1993 and 1999, and most notably among girls within the same period. These observations illustrate the necessity for significant changes in mass media campaigns and education programmes related to the prevention of smoking among youth. The objective of this survey, initiated by the city of Besançon and the French National Mutual Insurance of Doubs, was to describe and analyse the knowledge and rationale of high school students on tobacco and their opinions in terms of prevention. Twelve public and private high schools in Besançon and Morteau (Doubs-France) participated in the survey; the group also represented a mix of general and professional schools. The questionnaire was filled out by 970 students selected at random. 96% of the students indicated cancer as being the main illness linked to tobacco and 94% stated that second-hand smoke constitutes a health risk. 61% admitted to seeking out the psychoactive effects of smoking. The students responses confirm that the types of messages relayed in a smoking prevention campaign which have an impact on them are: evoking fear of death (74%) and the use of humor (16%). One-third of high school students find that it is unacceptable to forbid smoking on school premises. The knowledge of the dangers related to smoking is not sufficient to keep young people from smoking and confirms that an educational approach based solely on knowledge and facts will not be sufficient to decrease their tobacco consumption. It is important to take into account the image that young people have of tobacco as a means to combat stress in future prevention strategies and campaigns.
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Michaud C, Saraiva I, Henry Y, Dodane M. Tabac : connaissances, motivations et souhaits de lycéens du Doubs. Réflexions pour la prévention. Santé Publique 2003. [DOI: 10.3917/spub.031.0069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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