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Khor YH, Ekström M. The benefits and drawbacks of home oxygen therapy for COPD: what's next? Expert Rev Respir Med 2024:1-15. [PMID: 38984511 DOI: 10.1080/17476348.2024.2379459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/09/2024] [Indexed: 07/11/2024]
Abstract
INTRODUCTION Home oxygen therapy is one of the few interventions that can improve survival in patients with chronic obstructive pulmonary disease (COPD) when administered appropriately, although it may cause side effects and be an unnecessary burden for some patients. AREAS COVERED This narrative review summarizes the current literature on the assessment of hypoxemia, different types of home oxygen therapy, potential beneficial and adverse effects, and emerging research on home oxygen therapy in COPD. A literature search was performed using MEDLINE and EMBASE up to January 2024, with additional articles being identified through clinical guidelines. EXPERT OPINION Hypoxemia is common in patients with more severe COPD. Long-term oxygen therapy is established to prolong survival in patients with chronic severe resting hypoxemia. Conversely, in the absence of chronic severe resting hypoxemia, home oxygen therapy has an unclear or conflicting evidence base, including for palliation of breathlessness, and is generally not recommended. However, beneficial effects in some patients cannot be precluded. Evidence is emerging on the optimal daily duration of oxygen use, the role of high-flow and auto-titrated oxygen therapy, improved informed decision-making, and telemonitoring. Further research is needed to validate novel oxygen delivery systems and monitoring tools and establish long-term effects of ambulatory oxygen therapy in COPD.
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Affiliation(s)
- Yet H Khor
- Respiratory Research@Alfred, School of Translational Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
- Institute for Breathing and Sleep, Heidelberg, Victoria, Australia
- Faculty of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Magnus Ekström
- Respiratory Medicine, Allergology and Palliative Medicine, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
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Holland AE, Spathis A, Marsaa K, Bausewein C, Ahmadi Z, Burge AT, Pascoe A, Gadowski AM, Collis P, Jelen T, Reilly CC, Reinke LF, Romero L, Russell AM, Saggu R, Solheim J, Vagheggini G, Vandendungen C, Wijsenbeek M, Tonia T, Smallwood N, Ekström M. European Respiratory Society clinical practice guideline on symptom management for adults with serious respiratory illness. Eur Respir J 2024; 63:2400335. [PMID: 38719772 DOI: 10.1183/13993003.00335-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/19/2024] [Indexed: 06/30/2024]
Abstract
Respiratory symptoms are ubiquitous and impair health-related quality of life in people with respiratory disease. This European Respiratory Society (ERS) task force aimed to provide recommendations for symptomatic treatment in people with serious respiratory illness. The ERS task force comprised 16 members, including representatives of people with serious respiratory illness and informal caregivers. Seven questions were formulated, six in the PICO (Population, Intervention, Comparison, Outcome) format, which were addressed with full systematic reviews and evidence assessed using GRADE (Grading of Recommendations Assessment, Development and Evaluation). One question was addressed narratively. An "evidence-to-decision" framework was used to formulate recommendations. To treat symptoms in people with serious respiratory illness, the task force suggests the use of graded exercise therapy (conditional recommendation, low certainty of evidence); and suggests the use of a multicomponent services, handheld fan and breathing techniques (conditional recommendations, very low certainty of evidence). The task force suggests not to use opioids (conditional recommendation, very low certainty of evidence); and suggests either administering or not administering supplemental oxygen therapy (conditional recommendation, low certainty of evidence). The task force suggests that needs assessment tools may be used as part of a comprehensive needs assessment, but do not replace patient-centred care and shared decision making (conditional recommendation, low certainty of evidence). The low certainty of evidence, modest impact of interventions on patient-centred outcomes, and absence of effective strategies to ameliorate cough highlight the need for new approaches to reduce symptoms and enhance wellbeing for individuals who live with serious respiratory illness.
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Affiliation(s)
- Anne E Holland
- Departments of Physiotherapy and Respiratory Medicine, Alfred Health, Melbourne, Australia
- School of Translational Medicine, Monash University, Melbourne, Australia
- Institute for Breathing and Sleep, Melbourne, Australia
| | - Anna Spathis
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Kristoffer Marsaa
- Department of Multidisease, North Zealand Hospital, Copenhagen University, Hilleroed, Denmark
| | - Claudia Bausewein
- Department of Palliative Medicine, LMU University Hospital, LMU Munich, Munich, Germany
| | - Zainab Ahmadi
- Respiratory Medicine, Allergology and Palliative Medicine, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Angela T Burge
- School of Translational Medicine, Monash University, Melbourne, Australia
- Department of Physiotherapy, Alfred Health, Melbourne, Australia
| | - Amy Pascoe
- School of Translational Medicine, Monash University, Melbourne, Australia
| | - Adelle M Gadowski
- School of Translational Medicine, Monash University, Melbourne, Australia
| | - Phil Collis
- CPROR Birmingham University, Birmingham, UK
- Patient Advisory Group, European Lung Foundation, Sheffield, UK
| | - Tessa Jelen
- Patient Advisory Group, European Lung Foundation, Sheffield, UK
| | - Charles C Reilly
- Department of Physiotherapy, King's College Hospital, London, UK
- Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King's College London, London, UK
| | - Lynn F Reinke
- College of Nursing, University of Utah, Salt Lake City, UT, USA
| | - Lorena Romero
- The Ian Potter Library, Alfred Health, Melbourne, Australia
| | - Anne-Marie Russell
- Institute of Clinical Sciences, University of Birmingham, Birmingham, UK
- Birmingham Regional NHS Interstitial Lung Disease and Occupational Lung Disease Service, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Ravijyot Saggu
- Pharmacy Medicines Management Team, Central London Community Healthcare Trust, London, UK
| | - John Solheim
- EU-PFF - European Pulmonary Fibrosis Federation, Overijse, Belgium
- LHL-IPF, Jessheim, Norway
| | - Guido Vagheggini
- Department of Internal Medicine and Medical Specialties, Respiratory Failure Pathway, Azienda USL Toscana Nordovest, Pisa, Italy
- Fondazione Volterra Ricerche ONLUS, Volterra, Italy
| | - Chantal Vandendungen
- EU-PFF - European Pulmonary Fibrosis Federation, Overijse, Belgium
- ABFFP - Association Belge Francophone Contre la Fibrose Pulmonaire, Rebecq, Belgium
| | - Marlies Wijsenbeek
- Department of Respiratory Medicine, Erasmus University Medical Center, Center of Excellence for Interstitial Lung Disease, Rotterdam, The Netherlands
| | - Thomy Tonia
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Natasha Smallwood
- School of Translational Medicine, Monash University, Melbourne, Australia
- Department of Respiratory Medicine, Alfred Health, Melbourne, Australia
- Joint last authors
| | - Magnus Ekström
- Respiratory Medicine, Allergology and Palliative Medicine, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Joint last authors
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Fortis S, Georgopoulos D, Tzanakis N, Sciurba F, Zabner J, Comellas AP. Chronic obstructive pulmonary disease (COPD) and COPD-like phenotypes. Front Med (Lausanne) 2024; 11:1375457. [PMID: 38654838 PMCID: PMC11037247 DOI: 10.3389/fmed.2024.1375457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/20/2024] [Indexed: 04/26/2024] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease. Historically, two COPD phenotypes have been described: chronic bronchitis and emphysema. Although these phenotypes may provide additional characterization of the pathophysiology of the disease, they are not extensive enough to reflect the heterogeneity of COPD and do not provide granular categorization that indicates specific treatment, perhaps with the exception of adding inhaled glucocorticoids (ICS) in patients with chronic bronchitis. In this review, we describe COPD phenotypes that provide prognostication and/or indicate specific treatment. We also describe COPD-like phenotypes that do not necessarily meet the current diagnostic criteria for COPD but provide additional prognostication and may be the targets for future clinical trials.
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Affiliation(s)
- Spyridon Fortis
- Center for Access and Delivery Research and Evaluation, Iowa City VA Health Care System, Iowa City, IA, United States
- Division of Pulmonary, Critical Care and Occupational Medicine, Department of Internal Medicine, University of Iowa, Iowa City, IA, United States
- Medical School, University of Crete, Heraklion, Greece
| | | | | | - Frank Sciurba
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Joseph Zabner
- Division of Pulmonary, Critical Care and Occupational Medicine, Department of Internal Medicine, University of Iowa, Iowa City, IA, United States
| | - Alejandro P. Comellas
- Division of Pulmonary, Critical Care and Occupational Medicine, Department of Internal Medicine, University of Iowa, Iowa City, IA, United States
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Watson K, Winship P, Cavalheri V, Vicary C, Stray S, Bear N, Hill K. In adults with advanced lung disease, the 1-minute sit-to-stand test underestimates exertional desaturation compared with the 6-minute walk test: an observational study. J Physiother 2023; 69:108-113. [PMID: 36914524 DOI: 10.1016/j.jphys.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/12/2023] [Accepted: 02/09/2023] [Indexed: 03/16/2023] Open
Abstract
QUESTION In adults with advanced lung disease, do the 6-minute walk test (6MWT) and 1-minute sit-to-stand test (1minSTS) elicit similar cardiorespiratory responses? Can the 6-minute walk distance (6MWD) be estimated from the 1minSTS result? DESIGN Prospective observational study using data collected during routine clinical practice. PARTICIPANTS Eighty adults (43 males) with advanced lung disease, a mean age of 64 years (SD 10) and a mean forced expiratory volume in 1 second of 1.65 L (SD 0.77). OUTCOME MEASURES Participants completed a 6MWT and a 1minSTS. During both tests, oxygen saturation (SpO2), pulse rate, dyspnoea and leg fatigue (Borg 0 to 10) were recorded. RESULTS Compared with the 6MWT, the 1minSTS resulted in higher nadir SpO2 (MD 4%, 95% CI 3 to 5), lower end-test pulse rate (MD -4 beats/minute, 95% CI -6 to -1), similar dyspnoea (MD -0.3, 95% CI -0.6 to 0.1) and greater leg fatigue (MD 1.1, 95% CI 0.6 to 1.6). Among the participants who demonstrated severe desaturation (SpO2 nadir < 85%) on the 6MWT (n = 18), five and ten participants were classified as moderate (nadir 85 to 89%) or mild desaturators (nadir ≥ 90%), respectively, on the 1minSTS. The relationship between the 6MWD and 1minSTS was: 6MWD (m) = 247 + (7 × number of transitions achieved during the 1minSTS) with poor predictive ability (r2 = 0.44). CONCLUSION The 1minSTS elicited less desaturation than the 6MWT and classified a smaller proportion of people as 'severe desaturators' on exertion. It is therefore inappropriate to use the nadir SpO2 recorded during a 1minSTS to make decisions about whether strategies are needed to prevent severe transient exertional desaturation during walking-based exercise. Further, the extent to which performance on the 1minSTS can estimate a person's 6MWD is poor. For these reasons, the 1minSTS is unlikely to be helpful when prescribing walking-based exercise.
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Affiliation(s)
- Kathryn Watson
- Physiotherapy Department, Fiona Stanley Hospital, Perth, Australia.
| | - Peta Winship
- Physiotherapy Department, Fiona Stanley Hospital, Perth, Australia; National School of Health Sciences and Physiotherapy, Notre Dame University, Perth, Australia
| | - Vinicius Cavalheri
- Physiotherapy Department, Fiona Stanley Hospital, Perth, Australia; Allied Health, Metropolitan Health Service, Perth, Australia; Curtin School of Allied Health and enAble Institute, Curtin University, Perth, Australia
| | - Caitlin Vicary
- Physiotherapy Department, Fiona Stanley Hospital, Perth, Australia
| | - Stephanie Stray
- Physiotherapy Department, Fiona Stanley Hospital, Perth, Australia
| | - Natasha Bear
- Institute for Health Research, Notre Dame University, Perth, Australia
| | - Kylie Hill
- Curtin School of Allied Health and enAble Institute, Curtin University, Perth, Australia
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Owens RL, Derom E, Ambrosino N. Supplemental oxygen and noninvasive ventilation. Eur Respir Rev 2023; 32:220159. [PMID: 36948502 PMCID: PMC10032613 DOI: 10.1183/16000617.0159-2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/27/2022] [Indexed: 03/24/2023] Open
Abstract
The respiratory system attempts to maintain normal levels of oxygen and carbon dioxide. However, airflow limitation, parenchymal abnormalities and dysfunction of the respiratory pump may be compromised in individuals with advanced COPD, eventually leading to respiratory failure, with reduced arterial oxygen tension (hypoxaemia) and/or increased arterial carbon dioxide tension (P aCO2 ; hypercapnia). Hypoxaemia may persist in individuals with severe COPD despite smoking cessation and optimisation of pharmacotherapy. Long-term oxygen therapy (LTOT) can improve survival in those with severe daytime hypoxaemia, whereas those with less severe hypoxaemia may only have improved exercise capacity and dyspnoea. Changes in respiratory physiology that occur during sleep further predispose to hypoxaemia, particularly in individuals with COPD. However, the major cause of hypoxaemia is hypoventilation. Noninvasive ventilation (NIV) may reduce mortality and need for intubation in individuals with COPD and acute hypercapnic respiratory failure. However, NIV may also improve survival and quality of life in individuals with stable, chronic hypercapnia and is now suggested for those with prolonged hypercapnia (e.g. P aCO2 >55 mmHg 2-6 weeks after hospital discharge) when clinically stable and after optimisation of medical therapy including LTOT if indicated. Many questions remain about the optimal mode, settings and goal of NIV therapy.
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Affiliation(s)
- Robert L Owens
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, CA, USA
| | - Eric Derom
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Nicolino Ambrosino
- Istituti Clinici Scientifici Maugeri, IRCCS, Scientific Institute of Montescano, Montescano, Italy
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Yang L, Shi M, Situ X, He J, Qumu S, Yang T. Prediction of exercise-induced desaturation in COPD patients without resting hypoxemia: a retrospective study. BMC Pulm Med 2022; 22:405. [PMID: 36348483 PMCID: PMC9641883 DOI: 10.1186/s12890-022-02174-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/21/2022] [Indexed: 11/10/2022] Open
Abstract
Background There is no universally accepted criterion for assessing exercise-induced desaturation (EID). The purpose of this study is to compare the two methods regularly used for determining EID in COPD patients, as well as to explore the risk factors and predictors related to EID. Methods The 6MWT was performed with continuous SpO2 monitoring on patients with stable COPD. Using two methods (method A: “SpO2rest–SpO2min ≥ 4% and/or SpO2min < 90%”, method B: “SpO2rest–SpO2end ≥ 4% and/or SpO2end < 90%”) as EID determination criteria to assess the incidence of EID. The differences and consistency of the two methods are compared. Moreover, we collected data through the pulmonary function test, mMRC dyspnea score, COPD assessment test, BODE index and CT-defined emphysema. Univariate and multivariate logistic regression analyses were used to identify factors affecting the EID. For the parameters that predict EID in 6MWT, a receiver operating characteristic (ROC) curve analysis was employed. Results The analysis included 124 patients. The overall incidence of EID was 62.1% by using method A as the criterion and 51.6% by method B. All of the EID patients found by method B were included in the EID patients identified by method A, as well as 13 new-EID patients. The difference in diagnostic outcomes between the two approaches was not statistically significant (P > 0.05), but they were in excellent agreement (Kappa = 0.807, P = 0.001). Logistic regression analyses found that DLCO SB% pred, DLCO/VA% pred, CAT score, mean density, PD15, emphysema volume and %LAA were significant determinants of the EID. For predicting EID, the ROC analysis produced AUC and cutoffs of 0.689 and 50.45% (DLCO SB% pred), 0.707 and 75.0% (DLCO/VA% pred), 0.727 and 15 points (CAT score), 0.691 and − 955.00HU (PD15), 0.671 and − 856.46HU (mean density), 0.668 and 338.14 ml (emphysema volume) and 0.656 and 7.63% (%LAA), respectively. Conclusions Two methods evaluating EID in this research are in a good agreement, method A can find more EID patients by focusing on SpO2min. When conditions are constrained, it is also sufficient to assess EID in COPD patients by method B. In terms of the predictors of EID, DLCO SB% pred, DLCO/VA% pred, CAT score and CT-defined emphysema are all statistically significant test variables to determine EID.
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7
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Growth of home respiratory equipment from 2006 to 2019 and cost control by health policies. Respir Med Res 2022; 82:100930. [DOI: 10.1016/j.resmer.2022.100930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/08/2022] [Accepted: 06/04/2022] [Indexed: 11/21/2022]
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8
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Shah NM, Kaltsakas G. Telemedicine in the management of patients with chronic respiratory failure. Breathe (Sheff) 2021; 17:210008. [PMID: 34295411 PMCID: PMC8291909 DOI: 10.1183/20734735.0008-2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/12/2021] [Indexed: 12/20/2022] Open
Abstract
Patients with chronic respiratory failure are often required to attend multiple hospital appointments, which may be difficult due to their physical disabilities and the amount of equipment they are required to bring. Their caregivers often struggle with the lack of immediate care available when the patient suffers difficulties at home. Telemedicine is an opportunity to bridge the gap between home and healthcare professionals by allowing the healthcare team to reach into patients' homes to provide more frequent support. The evidence for the use of telemedicine in patients with chronic respiratory failure remains equivocal. Although the uptake of telemedicine has been slow, the SARS-CoV-2 pandemic has resulted in the rapid dissemination of telemedicine to allow the delivery of care to vulnerable patients while reducing the need for their attendance in hospital. Logistical and legal challenges to the delivery of telemedicine remain, but the pandemic may serve as a driver to ameliorate these challenges and facilitate wider use of this technology to improve the experience of patients with chronic respiratory failure. Educational aims To provide an overview of the rationale for delivering care via telemedicine for patients with chronic respiratory failure.To provide the evidence base for establishing a telemedicine service.To highlight the potential opportunities and challenges in delivering a telemedicine service for patients with chronic respiratory failure.
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Affiliation(s)
- Neeraj M Shah
- Lane Fox Respiratory Service, St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Clinical Respiratory Physiology Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Centre for Human and Applied Physiological Sciences (CHAPS), King's College London, London, UK
| | - Georgios Kaltsakas
- Lane Fox Respiratory Service, St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Lane Fox Clinical Respiratory Physiology Centre, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Centre for Human and Applied Physiological Sciences (CHAPS), King's College London, London, UK
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9
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Kochovska S, Ferreira DH, Garcia MV, Phillips JL, Currow DC. Perspectives on palliative oxygen for breathlessness: systematic review and meta-synthesis. Eur Respir J 2021; 58:13993003.04613-2020. [PMID: 33653807 DOI: 10.1183/13993003.04613-2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 02/15/2021] [Indexed: 12/16/2022]
Abstract
Oxygen therapy is frequently prescribed for the palliation of breathlessness, despite lack of evidence for its effectiveness in people who are not hypoxaemic. This study aimed to compare and contrast patients', caregivers' and clinicians' experiences of palliative oxygen use for the relief of chronic breathlessness in people with advanced life-limiting illnesses, and how this shapes prescribing.A systematic review and meta-synthesis of qualitative data was conducted. MEDLINE, CINAHL and PsycINFO were searched for peer-reviewed studies in English (2000-April 2019) reporting perspectives on palliative oxygen use for reducing breathlessness in people with advanced illnesses in any healthcare setting. After data extraction, thematic synthesis used line-by-line coding of raw data (quotes) to generate descriptive and analytical themes.Of 457 articles identified, 22 met the inclusion criteria by reporting perspectives of patients (n=337), caregivers (n=91) or clinicians (n=616). Themes common to these perspectives were: 1) benefits and burdens of palliative oxygen use, 2) knowledge and perceptions of palliative oxygen use beyond the guidelines, and 3) longitudinal trajectories of palliative oxygen use.There are differing perceptions regarding the benefits and burdens of using palliative oxygen. Clinicians should be aware that oxygen use may generate differing goals of therapy for patients and caregivers. These perceptions should be taken into consideration when prescribing oxygen for the symptomatic relief of chronic breathlessness in patients who do not quality for long-term oxygen therapy.
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Affiliation(s)
- Slavica Kochovska
- IMPACCT, Faculty of Health, University of Technology Sydney, Sydney, Australia.,These authors are joint first authors
| | - Diana H Ferreira
- Palliative and Supportive Services, Flinders University, Adelaide, Australia.,These authors are joint first authors
| | - Maja V Garcia
- IMPACCT, Faculty of Health, University of Technology Sydney, Sydney, Australia
| | - Jane L Phillips
- IMPACCT, Faculty of Health, University of Technology Sydney, Sydney, Australia
| | - David C Currow
- IMPACCT, Faculty of Health, University of Technology Sydney, Sydney, Australia .,Wolfson Palliative Care Research Centre, University of Hull, Hull, UK
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Haidl P, Jany B, Geiseler J, Andreas S, Arzt M, Dreher M, Frey M, Hauck RW, Herth F, Hämäläinen N, Jehser T, Kenn K, Lamprecht B, Magnet F, Oldenburg O, Schenk P, Schucher B, Studnicka M, Voshaar T, Windisch W, Woehrle H, Worth H. [Guideline for Long-Term Oxygen Therapy - S2k-Guideline Published by the German Respiratory Society]. Pneumologie 2020; 74:813-841. [PMID: 33291162 DOI: 10.1055/a-1252-1492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Long-term oxygen therapy is of great importance both for reducing mortality and for improving performance in patients with chronic lung diseases. The prerequisites for Long-term oxygen therapy are adequate diagnostics and clearly defined indication. A causal distinction into chronic hypoxaemic and hypercapnic respiratory failure is reasonable, from which the differential indication for non-invasive ventilation results.The revised guideline covers the diagnostics and indication of chronic lung and heart diseases, the role of oxygen in terminal illness and gives a detailed description of available oxygen devices. The guideline is intended to help avoid undersupply, oversupply and false prescriptions. Furthermore, the chapter "Postacute Oxygen Therapy" discusses the procedure, relevant in everyday life, but not yet clearly defined, for prescribing oxygen therapy for the home at the end of an inpatient stay. Another important point, the correct prescription of mobile oxygen systems, is also presented in the guideline. This document is a revised version of the guideline for longterm oxygen therapy and replaces the version of 2008.
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Affiliation(s)
- P Haidl
- Fachkrankenhaus Kloster Grafschaft GmbH, Abteilung Pneumologie II, Schmallenberg
| | - B Jany
- Klinikum Würzburg Mitte (KWM), Klinik für Innere Medizin, Pneumologie und Beatmungsmedizin, Standort MissioKlinik, Würzburg
| | - J Geiseler
- Klinikum Vest, Medizinische Klinik IV: Pneumologie, Beatmungs- und Schlafmedizin, Marl
| | - S Andreas
- Lungenfachklinik Immenhausen, Universitätsmedizin Göttingen, Immenhausen
| | - M Arzt
- Universitätsklinikum Regensburg, Klinik und Poliklinik für Innere Medizin II, Regensburg
| | - M Dreher
- Universitätsklinikum Aachen, Klinik für Pneumologie und Internistische Intensivmedizin, Aachen
| | - M Frey
- Klinik Barmelweid, Rombach, Schweiz
| | - R W Hauck
- Klinikum Altötting, Klinik für Pneumologie, Beatmungs- und Schlafmedizin, Altötting
| | - F Herth
- Thoraxklinik, Abteilung für Pneumologie und Beatmungsmedizin, Universität Heidelberg, Heidelberg
| | | | - T Jehser
- Gemeinschaftskrankenhaus Havelhöhe, Palliativstation, Berlin
| | - K Kenn
- Philips Universität Marburg, Lehrstuhl für pneumologische Rehabilitation, Marburg
| | - B Lamprecht
- Kepler Universitätsklinikum, Med Campus III, Linz, Österreich
| | - F Magnet
- Lungenklinik, Kliniken der Stadt Köln gGmbH, Universität Witten-Herdecke, Fakultät für Gesundheit - Department für Humanmedizin, Köln
| | - O Oldenburg
- Clemenshospital, Klinik für Kardiologie, Münster
| | - P Schenk
- Landesklinikum Hochegg, Abteilung für Pulmologie, Grimmenstein, Österreich
| | - B Schucher
- LungenClinic Grosshansdorf, Großhansdorf
| | - M Studnicka
- Landeskrankenhaus Salzburg, Universitätsklinikum der PMU, Universitätsklinik für Pneumologie, Salzburg, Österreich
| | - T Voshaar
- Krankenhaus Bethanien Lungenzentrum, Medizinische Klinik III, Moers
| | - W Windisch
- Lungenklinik, Kliniken der Stadt Köln gGmbH, Universität Witten-Herdecke, Fakultät für Gesundheit - Department für Humanmedizin, Köln
| | | | - H Worth
- Facharztzentrum Fürth, Fürth
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Jacobs SS, Krishnan JA, Lederer DJ, Ghazipura M, Hossain T, Tan AYM, Carlin B, Drummond MB, Ekström M, Garvey C, Graney BA, Jackson B, Kallstrom T, Knight SL, Lindell K, Prieto-Centurion V, Renzoni EA, Ryerson CJ, Schneidman A, Swigris J, Upson D, Holland AE. Home Oxygen Therapy for Adults with Chronic Lung Disease. An Official American Thoracic Society Clinical Practice Guideline. Am J Respir Crit Care Med 2020; 202:e121-e141. [PMID: 33185464 PMCID: PMC7667898 DOI: 10.1164/rccm.202009-3608st] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background: Evidence-based guidelines are needed for effective delivery of home oxygen therapy to appropriate patients with chronic obstructive pulmonary disease (COPD) and interstitial lung disease (ILD).Methods: The multidisciplinary panel created six research questions using a modified Delphi approach. A systematic review of the literature was completed, and the Grading of Recommendations Assessment, Development and Evaluation approach was used to formulate clinical recommendations.Recommendations: The panel found varying quality and availability of evidence and made the following judgments: 1) strong recommendations for long-term oxygen use in patients with COPD (moderate-quality evidence) or ILD (low-quality evidence) with severe chronic resting hypoxemia, 2) a conditional recommendation against long-term oxygen use in patients with COPD with moderate chronic resting hypoxemia, 3) conditional recommendations for ambulatory oxygen use in patients with COPD (moderate-quality evidence) or ILD (low-quality evidence) with severe exertional hypoxemia, 4) a conditional recommendation for ambulatory liquid-oxygen use in patients who are mobile outside the home and require >3 L/min of continuous-flow oxygen during exertion (very-low-quality evidence), and 5) a recommendation that patients and their caregivers receive education on oxygen equipment and safety (best-practice statement).Conclusions: These guidelines provide the basis for evidence-based use of home oxygen therapy in adults with COPD or ILD but also highlight the need for additional research to guide clinical practice.
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Chang CH, Lin HC, Yang CH, Gan ST, Huang CH, Chung FT, Hu HC, Lin SM, Chang CH. Factors Associated with Exercise-Induced Desaturation in Patients with Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2020; 15:2643-2652. [PMID: 33122902 PMCID: PMC7591268 DOI: 10.2147/copd.s272511] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/23/2020] [Indexed: 02/02/2023] Open
Abstract
Purpose The 6-min walk test (6MWT) is a useful tool to assess the physiologic function in patients with chronic obstructive pulmonary disease (COPD). The recent study showed that patients with COPD with oxygen desaturation during the 6MWT had an increased risk of exacerbation and death compared with those without oxygen desaturation. This study aimed to explore the potential risk factors for exercise-induced desaturation (EID) in patients with COPD. Patients and Methods Adult patients with COPD were enrolled from the Chang Gung Research Database between January 2013 and January 2017. Age, sex, body mass index, underlying diseases, medications, and results of the pulmonary function tests and 6MWT were retrospectively collected and analyzed. Results Among 1768 patients with COPD, 932 (52.7%) had oxygen desaturation, and the other 836 (47.3%) had no desaturation during the 6MWT. The patients with EID had a shorter 6-min walk distance than those without desaturation (352.08±120.29 vs 426.56±112.56, p<0.0001). In the multivariate logistic regression analysis, older age, female sex, lower forced expiratory volume in 1 s, and comorbidity with atrial fibrillation (AF) were associated with oxygen desaturation during the 6MWT. Patients with EID had higher exacerbation frequency than those without desaturation in the 1-year follow-up period (0.59±1.50 vs 0.34±1.26, p<0.0001). Patients with COPD with AF also had a higher rate of exacerbation requiring emergency department visit or hospitalization in the 1-year follow-up. Conclusion This study demonstrates that older age, low FEV1, and female sex are risk factors for EID. Desaturation during 6MWT is related to frequent acute exacerbation of COPD in the 1-year follow-up.
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Affiliation(s)
- Chiung-Hsin Chang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Chia-Hung Yang
- Division of Cardiology, Department of Internal Medicine, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan
| | - Shu-Ting Gan
- Center for Big Data Analytics and Statistics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chi-Hsien Huang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Fu-Tsai Chung
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan
| | - Han-Chung Hu
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Shu-Min Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Chih-Hao Chang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan
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Devji T, Carrasco-Labra A, Qasim A, Phillips M, Johnston BC, Devasenapathy N, Zeraatkar D, Bhatt M, Jin X, Brignardello-Petersen R, Urquhart O, Foroutan F, Schandelmaier S, Pardo-Hernandez H, Vernooij RW, Huang H, Rizwan Y, Siemieniuk R, Lytvyn L, Patrick DL, Ebrahim S, Furukawa T, Nesrallah G, Schünemann HJ, Bhandari M, Thabane L, Guyatt GH. Evaluating the credibility of anchor based estimates of minimal important differences for patient reported outcomes: instrument development and reliability study. BMJ 2020; 369:m1714. [PMID: 32499297 PMCID: PMC7270853 DOI: 10.1136/bmj.m1714] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To develop an instrument to evaluate the credibility of anchor based minimal important differences (MIDs) for outcome measures reported by patients, and to assess the reliability of the instrument. DESIGN Instrument development and reliability study. DATA SOURCES Initial criteria were developed for evaluating the credibility of anchor based MIDs based on a literature review (Medline, Embase, CINAHL, and PsycInfo databases) and the experience of the authors in the methodology for estimation of MIDs. Iterative discussions by the team and pilot testing with experts and potential users facilitated the development of the final instrument. PARTICIPANTS With the newly developed instrument, pairs of masters, doctoral, or postdoctoral students with a background in health research methodology independently evaluated the credibility of a sample of MID estimates. MAIN OUTCOME MEASURES Core credibility criteria applicable to all anchor types, additional criteria for transition rating anchors, and inter-rater reliability coefficients were determined. RESULTS The credibility instrument has five core criteria: the anchor is rated by the patient; the anchor is interpretable and relevant to the patient; the MID estimate is precise; the correlation between the anchor and the outcome measure reported by the patient is satisfactory; and the authors select a threshold on the anchor that reflects a small but important difference. The additional criteria for transition rating anchors are: the time elapsed between baseline and follow-up measurement for estimation of the MID is optimal; and the correlations of the transition rating with the baseline, follow-up, and change score in the patient reported outcome measures are satisfactory. Inter-rater reliability coefficients (ĸ) for the core criteria and for one item from the additional criteria ranged from 0.70 to 0.94. Reporting issues prevented the evaluation of the reliability of the three other additional criteria for the transition rating anchors. CONCLUSIONS Researchers, clinicians, and healthcare policy decision makers can consider using this instrument to evaluate the design, conduct, and analysis of studies estimating anchor based minimal important differences.
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Affiliation(s)
- Tahira Devji
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Alonso Carrasco-Labra
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Anila Qasim
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Mark Phillips
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Bradley C Johnston
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, NS, Canada
| | | | - Dena Zeraatkar
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Meha Bhatt
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Xuejing Jin
- School of Public Health, University of Alberta, Edmonton, AB, Canada
| | - Romina Brignardello-Petersen
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Olivia Urquhart
- Center for Evidence Based Dentistry, American Dental Association, Chicago, IL, USA
| | - Farid Foroutan
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Stefan Schandelmaier
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Hector Pardo-Hernandez
- Iberoamerican Cochrane Centre, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Robin Wm Vernooij
- Department of Research, Comprehensive Cancer Organisation, Utrecht, Netherlands
| | - Hsiaomin Huang
- Department of Orthopedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Yamna Rizwan
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
| | - Reed Siemieniuk
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Lyubov Lytvyn
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Donald L Patrick
- Department of Health Services, University of Washington, Seattle, WA, USA
| | - Shanil Ebrahim
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Toshi Furukawa
- Department of Health Promotion and Human Behaviour, School of Public Health, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Gihad Nesrallah
- Nephrology Program, Humber River Regional Hospital, Toronto, ON, Canada
- Division of Nephrology, University of Western Ontario, London, ON, Canada
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
| | - Holger J Schünemann
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Mohit Bhandari
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
- Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Lehana Thabane
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Gordon H Guyatt
- Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
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Tashkin DP, Amin AN, Kerwin EM. Comparing Randomized Controlled Trials and Real-World Studies in Chronic Obstructive Pulmonary Disease Pharmacotherapy. Int J Chron Obstruct Pulmon Dis 2020; 15:1225-1243. [PMID: 32581529 PMCID: PMC7276323 DOI: 10.2147/copd.s244942] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 05/03/2020] [Indexed: 12/11/2022] Open
Abstract
Analytic epidemiological studies cover a large spectrum of study methodologies, ranging from noninterventional observational studies (population-based, case-control, or cohort studies) to interventional studies (clinical trials). Herein, we review the different research methodologies or study designs and discuss their advantages and disadvantages in the context of chronic obstructive pulmonary disease (COPD) pharmacotherapy. Although randomized controlled trials (RCTs) are considered the "gold standard" for evaluating the efficacy and safety of an intervention, observational studies conducted in a real-world scenario are useful in providing evidence on the effectiveness of the intervention in clinical practice; understanding both efficacy and effectiveness is important from the clinician's perspective. Pragmatic clinical trials that use real-world data while retaining randomization bridge the gap between explanatory RCTs and noninterventional observational studies. Overall, different study designs have their associated advantages and disadvantages; together, findings from all types of studies bring about progress in clinical research as elucidated through examples from COPD research in this paper.
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Affiliation(s)
- Donald P Tashkin
- The Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Alpesh N Amin
- Department of Medicine, School of Medicine University of California, Irvine, CA, USA
| | - Edward M Kerwin
- Crisor, LLC Clinical Research Institute of Southern Oregon, Medford, OR, USA
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15
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Dilektasli AG, Porszasz J, Stringer WW, Casaburi R. Physiologic Effects of Oxygen Supplementation During Exercise in Chronic Obstructive Pulmonary Disease. Clin Chest Med 2020; 40:385-395. [PMID: 31078216 DOI: 10.1016/j.ccm.2019.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Supplemental long-term oxygen therapy (LTOT) is a well-established therapy that improves mortality in patients with chronic obstructive pulmonary disease (COPD) with resting hypoxemia. In the large number of patients with COPD who do not have severe resting hypoxemia but who desaturate with exercise, the clinical benefits that can be obtained by supplemental O2 therapy during exercise is an area of interest and active research. A summary of current evidence for benefits of supplemental O2 therapy and a review of physiologic mechanisms underlying published observations are reviewed in this article.
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Affiliation(s)
- Asli Gorek Dilektasli
- Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1124 W. Carson Street, Building CDCRC, Torrance, CA 90502, USA; Faculty of Medicine, Department of Pulmonary Medicine, Uludağ University, Turkey
| | - Janos Porszasz
- Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1124 W. Carson Street, Building CDCRC, Torrance, CA 90502, USA
| | - William W Stringer
- Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1124 W. Carson Street, Building CDCRC, Torrance, CA 90502, USA
| | - Richard Casaburi
- Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1124 W. Carson Street, Building CDCRC, Torrance, CA 90502, USA.
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16
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Lacasse Y, Tan AYM, Maltais F, Krishnan JA. Home Oxygen in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2019; 197:1254-1264. [PMID: 29547003 DOI: 10.1164/rccm.201802-0382ci] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Two landmark trials conducted more than 35 years ago provided scientific evidence that, under very specific circumstances, long-term oxygen therapy (LTOT) may prolong life. These two trials enrolled 290 patients with chronic obstructive pulmonary disease and severe daytime hypoxemia documented by direct arterial blood gas measurement. From that time, LTOT became a standard of care, and the indications for oxygen therapy expanded to include nocturnal oxygen therapy for isolated nocturnal oxygen desaturation, ambulatory oxygen to correct exercise-induced desaturation, and short-burst oxygen to relieve dyspnea. In most cases, the rationale for broadening the indications for oxygen therapy is that, if hypoxemia exists, correcting it by increasing the FiO2 should help. However, with the exception of LTOT in severely hypoxemic patients with chronic obstructive pulmonary disease, randomized controlled trials of oxygen therapy have failed to demonstrate clinically significant benefits. Also, adherence to LTOT is usually suboptimal. Important areas for future research include improving understanding of the mechanisms of action of supplemental oxygen, the clinical and biochemical predictors of responsiveness to LTOT, the methods for measuring and enhancing adherence to LTOT, and the cost-effectiveness of oxygen therapy. A standardization of terminology to describe the use of supplemental oxygen at home is provided.
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Affiliation(s)
- Yves Lacasse
- 1 Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec-Université Laval, Québec, Québec, Canada; and
| | - Ai-Yui M Tan
- 2 Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - François Maltais
- 1 Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec-Université Laval, Québec, Québec, Canada; and
| | - Jerry A Krishnan
- 2 Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
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17
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Wrist-Sensor Pulse Oximeter Enables Prolonged Patient Monitoring in Chronic Lung Diseases. J Med Syst 2019; 43:230. [PMID: 31201528 DOI: 10.1007/s10916-019-1317-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/01/2019] [Indexed: 12/20/2022]
Abstract
Pulse oximetry is an important diagnostic tool in monitoring and treating both in-patients and ambulatory patients. Modern pulse oximeters exploit different body sites (eg fingertip, forehead or earlobe). All those are bulky and uncomfortable, resulting in low patient compliance. Therefore, we evaluated the accuracy and precision of a wrist-sensor pulse oximeter (Oxitone-1000, Oxitone Medical) vs. the traditional fingertip device. Fifteen healthy volunteers and 23 patients were recruited. The patient group included chronic obstructive pulmonary disease (COPD) (N = 8), asthma (N = 6), sarcoidosis (N = 5) and others. Basic demographic data, skin tone type, smoking status and medical history were recorded. Blood oxygen level (SpO2) and pulse-rate values were determined by a non-invasive pulse oximeter (Reference, a conventional FDA-cleared fingertip pulse oximeter) and by Oxitone-1000. All tests were performed in singleton and in a blinded fashion. The measurements were done in sitting and standing positions, as well as after a 6-min walk test. The mean age was 60.4 ± 9.83 years, 55% were male. No significant differences were observed between the wrist-sensor and the traditional fingertip pulse oximeters in all tested parameters. Mean SpO2 was 96.45% vs. 97.18% and the mean pulse was 74.64 vs. 74.6 bpm (Oxitone-1000 vs. Reference, respectively, p < 0.0001). Precision rate was 2.28472% and the accuracy was met (Arms -Root mean-square-error < 3%). The Oxitone-1000 is both accurate and precise for SpO2 and pulse measurements during daily activities of pulmonary patients, and is not inferior to standard devices for spot checking or short period examinations. Its wrist-sensor design is comfortable and provides the advantage of extended use.
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18
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Huang H, Yang P, Wang J, Wu Y, Zi S, Tang J, Wang Z, Ma Y, Zhang Y. Investigation into the Individualized Treatment of Traditional Chinese Medicine through a Series of N-of-1 Trials. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:5813767. [PMID: 29552084 PMCID: PMC5820571 DOI: 10.1155/2018/5813767] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 11/08/2017] [Accepted: 01/10/2018] [Indexed: 12/02/2022]
Abstract
PURPOSE To compare the efficacy of individualized herbal decoction with standard decoction for patients with stable bronchiectasis through N-of-1 trials. METHODS We conducted a single center N-of-1 trials in 17 patients with stable bronchiectasis. Each N-of-1 trial contains three cycles. Each cycle is divided into two 4-week intervention including individualized decoction and fixed decoction (control). The primary outcome was patient self-reported symptoms scores on a 1-7 point Likert scale. Secondary outcomes were 24-hour sputum volume and CAT scores. RESULTS Among 14 completed trials, five showed that the individualized decoction was statistically better than the control decoction on symptom scores (P < 0.05) but was not clinically significant. The group data of all the trials showed that individualized decoction was superior to control decoction on symptom scores (2.13 ± 0.58 versus 2.30 ± 0.65, P = 0.002, mean difference and 95% CI: 0.18 (0.10, 0.25)), 24 h sputum volume (P = 0.009), and CAT scores (9.69 ± 4.89 versus 11.64 ± 5.59, P = 0.013, mean difference and 95% CI: 1.95 (1.04, 2.86)) but not clinically significant. CONCLUSION Optimizing the combined analysis of individual and group data and the improvement of statistical models may make contribution in establishing a method of evaluating clinical efficacy in line with the characteristics of traditional Chinese medicine individual diagnosis and treatment.
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Affiliation(s)
- Haiyin Huang
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Peilan Yang
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Jie Wang
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yingen Wu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Suna Zi
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Jie Tang
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Zhenwei Wang
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Ying Ma
- Department of Respiratory Disease and Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yuqing Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Science, Xicheng District, Beijing, China
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada L8S 4K1
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Supplemental oxygen in patients with stable chronic obstructive pulmonary disease: evidence from Nocturnal Oxygen Treatment Trial to Long-term Oxygen Treatment Trial. Curr Opin Pulm Med 2018; 24:179-186. [PMID: 29319542 DOI: 10.1097/mcp.0000000000000461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Oxygen therapy was the first treatment shown to prolong life in patients with chronic obstructive pulmonary disease (COPD) and has been joined by lung volume reduction surgery in selected patients with emphysema, smoking cessation, and potentially noninvasive ventilation in chronic hypercapneic respiratory failure. Although there is consensus around the survival-enhancing effect of supplemental oxygen (SupplO2) for patients with chronic severe hypoxemia at rest, the impact of SupplO2 for COPD patients with moderate hypoxemia and exertional desaturation had been less clear. RECENT FINDINGS The recently published Long-term Oxygen Treatment Trial (LOTT) showed no benefit of SupplO2 for the composite outcome of survival and all-cause hospitalizations, or for component outcomes, severe COPD exacerbations, or quality of life in COPD patients with moderate resting hypoxemia or room air normoxemia with exercise desaturation. SUMMARY Results of the LOTT challenge the practice of prescribing SupplO2 for patients with COPD and moderate resting hypoxemia or isolated exertional desaturation. In the context that LOTT may not have recruited patients for whom SupplO2 conferred subjective benefit, there may be a role for short-term trials of SupplO2 with assessment of subjective benefit in such patients.
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20
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Oxygen Therapy for Interstitial Lung Disease: Physicians’ Perceptions and Experiences. Ann Am Thorac Soc 2017; 14:1772-1778. [DOI: 10.1513/annalsats.201705-372oc] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Affiliation(s)
- RD Mirza
- Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4L8 Ontario, Canada
| | - S Punja
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2R3 Alberta, Canada
| | - S Vohra
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2R3 Alberta, Canada
| | - G Guyatt
- Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4L8 Ontario, Canada
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Abstract
Chronic respiratory failure due to chronic obstructive pulmonary disease (COPD) is an increasing problem worldwide. Many patients with severe COPD develop hypoxemic respiratory failure during the natural progression of disease. Long-term oxygen therapy (LTOT) is a well-established supportive treatment for COPD and has been shown to improve survival in patients who develop chronic hypoxemic respiratory failure. The degree of hypoxemia is severe when partial pressure of oxygen in arterial blood (PaO2) is ≤55 mmHg and moderate if PaO2 is between 56 and 69 mmHg. Although current guidelines consider LTOT only in patients with severe resting hypoxemia, many COPD patients with moderate to severe disease experience moderate hypoxemia at rest or during special circumstances, such as while sleeping or exercising. The efficacy of LTOT in these patients who do not meet the actual recommendations is still a matter of debate, and extensive research is still ongoing to understand the possible benefits of LTOT for survival and/or functional outcomes such as the sensation of dyspnea, exacerbation frequency, hospitalizations, exercise capacity, and quality of life. Despite its frequent use, the administration of "palliative" oxygen does not seem to improve dyspnea except for delivery with high-flow humidified oxygen. This narrative review will focus on current evidence for the effects of LTOT in the presence of moderate hypoxemia at rest, during sleep, or during exercise in COPD.
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Affiliation(s)
- Begum Ergan
- a Department of Pulmonary and Critical Care, Faculty of Medicine , Dokuz Eylul University , Izmir , Turkey
| | - Stefano Nava
- b Department of Clinical, Integrated and Experimental Medicine (DIMES), Respiratory and Critical Care Unit, S. Orsola-Malpighi Hospital , Alma Mater University , Bologna , Italy
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Abstract
INTRODUCTION LTOT is a well-established treatment option for hypoxemic patients. Scientific evidence for its benefits of LTOT dates back to the 1980s, when two randomized controlled trials showed prolonged survival in COPD-patients undergoing LTOT for at least 15 hours/day. In contrast, the potential benefits of LTOT in non-COPD-patients has not been well researched and the recommendations for its application are primarily extrapolated from trials on COPD-patients. Recently, a large trial confirmed that COPD-patients who don't meet classic indication criteria, and have moderate desaturation at rest or during exercise, do not benefit from oxygen therapy. Also the significant technical evolution of LTOT devices has improved its application. Areas covered: A literature research was performed in pubmed regarding home oxygen therapy (terms: LTOT, ambulatory oxygen therapy, short burst oxygen therapy, nocturnal oxygen therapy). Expert commentary: LTOT proved a survival benefit for COPD patients about 30 years ago. Whether the results of these trials are still valid for patients under modern treatment guidelines remains unknown. Nevertheless, the classic indication criteria for LTOT still persist in guidelines, since there is a lack of updated evidence for the effects of LTOT in more severe hypoxemic patients.
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Affiliation(s)
- F S Magnet
- a Department of Pneumology, Faculty of Health/School of Medicine, Cologne Merheim Hospital , Kliniken der Stadt Köln gGmbH, Witten/Herdecke University , Köln , Germany
| | - J H Storre
- a Department of Pneumology, Faculty of Health/School of Medicine, Cologne Merheim Hospital , Kliniken der Stadt Köln gGmbH, Witten/Herdecke University , Köln , Germany.,b Department of Pneumology , University Medical Hospital , Freiburg , Germany
| | - W Windisch
- a Department of Pneumology, Faculty of Health/School of Medicine, Cologne Merheim Hospital , Kliniken der Stadt Köln gGmbH, Witten/Herdecke University , Köln , Germany
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Ekström M, Ahmadi Z, Bornefalk‐Hermansson A, Abernethy A, Currow D. Oxygen for breathlessness in patients with chronic obstructive pulmonary disease who do not qualify for home oxygen therapy. Cochrane Database Syst Rev 2016; 11:CD006429. [PMID: 27886372 PMCID: PMC6464154 DOI: 10.1002/14651858.cd006429.pub3] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Breathlessness is a cardinal symptom of chronic obstructive pulmonary disease (COPD). Long-term oxygen therapy (LTOT) is given to improve survival time in people with COPD and severe chronic hypoxaemia at rest. The efficacy of oxygen therapy for breathlessness and health-related quality of life (HRQOL) in people with COPD and mild or no hypoxaemia who do not meet the criteria for LTOT has not been established. OBJECTIVES To determine the efficacy of oxygen versus air in mildly hypoxaemic or non-hypoxaemic patients with COPD in terms of (1) breathlessness; (2) HRQOL; (3) patient preference whether to continue therapy; and (4) oxygen-related adverse events. SEARCH METHODS We searched the Cochrane Airways Group Register, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE and Embase, to 12 July 2016, for randomised controlled trials (RCTs). We handsearched the reference lists of included articles. SELECTION CRITERIA We included RCTs of the effects of non-invasive oxygen versus air on breathlessness, HRQOL or patient preference to continue therapy among people with COPD and mild or no hypoxaemia (partial pressure of oxygen (PaO2) > 7.3 kPa) who were not already receiving LTOT. Two review authors independently assessed articles for inclusion in the review. DATA COLLECTION AND ANALYSIS Two review authors independently collected and analysed data. We assessed risk of bias by using the Cochrane 'Risk of bias tool'. We pooled effects recorded on different scales as standardised mean differences (SMDs) with 95% confidence intervals (CIs) using random-effects models. Lower SMDs indicated decreased breathlessness and reduced HRQOL. We performed subanalyses and sensitivity analyses and assessed the quality of evidence according to the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) approach. MAIN RESULTS Compared with the previous review, which was published in 2011, we included 14 additional studies (493 participants), excluded one study and included data for meta-analysis of HRQOL. In total, we included in this review 44 studies including 1195 participants, and we included 33 of these (901 participants)in the meta-analysis.We found that breathlessness during exercise or daily activities was reduced by oxygen compared with air (32 studies; 865 participants; SMD -0.34, 95% CI -0.48 to -0.21; I2 = 37%; low-quality evidence). This translates to a decrease in breathlessness of about 0.7 points on a 0 to 10 numerical rating scale. In contrast, we found no effect of short-burst oxygen given before exercise (four studies; 90 participants; SMD 0.01, 95% CI -0.26 to 0.28; I2 = 0%; low-quality evidence). Oxygen reduced breathlessness measured during exercise tests (25 studies; 442 participants; SMD -0.34, 95% CI -0.46 to -0.22; I2 = 29%; moderate-quality evidence), whereas evidence of an effect on breathlessness measured in daily life was limited (two studies; 274 participants; SMD -0.13, 95% CI, -0.37 to 0.11; I2 = 0%; low-quality evidence).Oxygen did not clearly affect HRQOL (five studies; 267 participants; SMD 0.10, 95% CI -0.06 to 0.26; I2 = 0%; low-quality evidence). Patient preference and adverse events could not be analysed owing to insufficient data. AUTHORS' CONCLUSIONS We are moderately confident that oxygen can relieve breathlessness when given during exercise to mildly hypoxaemic and non-hypoxaemic people with chronic obstructive pulmonary disease who would not otherwise qualify for home oxygen therapy. Most evidence pertains to acute effects during exercise tests, and no evidence indicates that oxygen decreases breathlessness in the daily life setting. Findings show that oxygen does not affect health-related quality of life.
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Affiliation(s)
- Magnus Ekström
- Lund UniversityDepartment of Clinical Sciences, Division of Respiratory Medicine & AllergologyLundSweden
| | - Zainab Ahmadi
- Lund UniversityDepartment of Clinical Sciences, Division of Respiratory Medicine & AllergologyLundSweden
| | | | - Amy Abernethy
- Duke University Medical CenterCLHCDurhamNorth CarolinaUSA
| | - David Currow
- Flinders UniversityDepartment of Palliative and Supportive Services700 Goodwood RoadDaw ParkSAAustralia5041
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Dubé BP, Vermeulen F, Laveneziana P. Exertional Dyspnoea in Chronic Respiratory Diseases: From Physiology to Clinical Application. Arch Bronconeumol 2016; 53:62-70. [PMID: 27818024 DOI: 10.1016/j.arbres.2016.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 09/07/2016] [Accepted: 09/09/2016] [Indexed: 11/16/2022]
Abstract
Dyspnoea is a complex, highly personalized and multidimensional sensory experience, and its underlying cause and mechanisms are still being investigated. Exertional dyspnoea is one of the most frequently encountered symptoms of patients with cardiopulmonary diseases, and is a common reason for seeking medical help. As the symptom usually progresses with the underlying disease, it can lead to an avoidance of physical activity, peripheral muscle deconditioning and decreased quality of life. Dyspnoea is closely associated with quality of life, exercise (in)tolerance and prognosis in various conditions, including chronic obstructive pulmonary disease, heart failure, interstitial lung disease and pulmonary hypertension, and is therefore an important therapeutic target. Effective management and treatment of dyspnoea is an important challenge for caregivers, and therapeutic options that attempt to reverse its underlying cause have been only partially successful This "review" will attempt to shed light on the physiological mechanisms underlying dyspnoea during exercise and to translate/apply them to a broad clinical spectrum of cardio-respiratory disorders.
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Affiliation(s)
- Bruno-Pierre Dubé
- Département de Médecine, Service de Pneumologie, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Canadá
| | | | - Pierantonio Laveneziana
- Sorbonne Universités, UPMC Université Paris 06, INSERM, UMRS_1158 Neurophysiologie respiratoire expérimentale et clinique, París, Francia; Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Service des Explorations Fonctionnelles de la Respiration, de l'Exercice et de la Dyspnée (Département «R3S», Pôle PRAGUES), París, Francia.
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Shamseer L, Sampson M, Bukutu C, Schmid CH, Nikles J, Tate R, Johnston BC, Zucker D, Shadish WR, Kravitz R, Guyatt G, Altman DG, Moher D, Vohra S. CONSORT extension for reporting N-of-1 trials (CENT) 2015: explanation and elaboration. J Clin Epidemiol 2016; 76:18-46. [PMID: 26272791 DOI: 10.1016/j.jclinepi.2015.05.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2015] [Indexed: 11/16/2022]
Abstract
N-of-1 trials are a useful tool for clinicians who want to determine the effectiveness of a treatment in a particular individual. The reporting of N-of-1 trials has been variable and incomplete, hindering their usefulness in clinical decision making and by future researchers. This document presents the CONSORT (Consolidated Standards of Reporting Trials) extension for N-of-1 trials (CENT 2015). CENT 2015 extends the CONSORT 2010 guidance to facilitate the preparation and appraisal of reports of an individual N-of-1 trial or a series of prospectively planned, multiple, crossover N-of-1 trials. CENT 2015 elaborates on 14 items of the CONSORT 2010 checklist, totalling 25 checklist items (44 sub-items), and recommends diagrams to help authors document the progress of one participant through a trial or more than one participant through a trial or series of trials, as applicable. Examples of good reporting and evidence based rationale for CENT 2015 checklist items are provided.
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Affiliation(s)
- Larissa Shamseer
- Clinical Epidemiology Program, Ottawa Hospital Research Institute; University of Ottawa, Canada
| | - Margaret Sampson
- Library Services, Children's Hospital of Eastern Ontario, Canada
| | - Cecilia Bukutu
- Child and Youth Data Laboratory, Alberta Centre for Child, Family and Community Research, Canada
| | - Christopher H Schmid
- Department of Biostatistics and Center for Evidence Based Medicine, Brown University, USA
| | | | - Robyn Tate
- Centre for Rehabilitation Research, Sydney Medical School - Northern, University of Sydney, Australia
| | - Bradley C Johnston
- Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, University of Toronto, Canada; Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Canada
| | | | | | - Richard Kravitz
- Department of Internal Medicine, University of California, Davis, USA
| | - Gordon Guyatt
- Department of Clinical Epidemiology & Biostatistics, McMaster University, Canada
| | | | - David Moher
- Clinical Epidemiology Program, Ottawa Hospital Research Institute; University of Ottawa, Canada
| | - Sunita Vohra
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Canada.
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Affiliation(s)
- Gordon Guyatt
- Departments of Clinical Epidemiology and Biostatistics and of Medicine, McMaster University, Hamilton, ON, Canada.
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Ejiofor SI, Bayliss S, Gassamma A, Turner AM. Ambulatory Oxygen for Exercise-Induced Desaturation and Dyspnea in Chronic Obstructive Pulmonary Disease (COPD): Systematic Review and Meta-Analysis. CHRONIC OBSTRUCTIVE PULMONARY DISEASES-JOURNAL OF THE COPD FOUNDATION 2016; 3:419-434. [PMID: 28848863 DOI: 10.15326/jcopdf.3.1.2015.0146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introduction: Ambulatory oxygen therapy is indicated in patients that use long term oxygen therapy (LTOT) and current guidelines suggest its use in patients who exhibit exertional desaturation if there is a demonstrable improvement in exercise capacity. Evidence for this is largely derived from single assessment studies which have shown clear benefit in this setting when oxygen versus air is used. The long term effects, however, of ambulatory oxygen therapy in this particular group of patients is controversial. Methods: We conducted a systematic review of published literature from 1980 to June 2014 for trials in which ambulatory oxygen was compared to placebo in chronic obstructive pulmonary disease (COPD) patients not on LTOT. We also reviewed the effectiveness of devices delivering ambulatory oxygen. Outcome measures were focused towards exercise capacity, Borg scores and the ability of the delivery devices to maintain oxygen saturations on exercise. Results: Twenty three studies (620 patients) were included in the review. Nine studies evaluated the clinical effectiveness of ambulatory oxygen and 14 studies evaluated the impact of the delivery devices. Ambulatory oxygen had no statistical effect on improving exercise capacity when assessed by the 6-minute walk test (6MWT) or the endurance shuttle walk test (ESWT);p=0.44 and p=0.29 respectively. End of test Borg scores showed no statistical improvement with ambulatory oxygen therapy during 6MWT (p=0.68). Oxygen conserving devices significantly improved oxygen saturations on exercise compared with continuous flow nasal cannulae (p=0.04). Conclusion: Ambulatory oxygen therapy has limited long term benefit in improving functional exercise capacity or Borg dyspnea scores.
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Affiliation(s)
| | - Susan Bayliss
- University of Birmingham, Edgbaston Birmingham, United Kingdom
| | | | - Alice M Turner
- University of Birmingham, Edgbaston Birmingham, United Kingdom.,Heart of England NHS Foundation Trust, Birmingham, United Kingdom
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Spruit MA, Augustin IML, Vanfleteren LE, Janssen DJA, Gaffron S, Pennings HJ, Smeenk F, Pieters W, van den Bergh JJAM, Michels AJ, Groenen MTJ, Rutten EPA, Wouters EFM, Franssen FME. Differential response to pulmonary rehabilitation in COPD: multidimensional profiling. Eur Respir J 2015; 46:1625-35. [PMID: 26453626 DOI: 10.1183/13993003.00350-2015] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/28/2015] [Indexed: 11/05/2022]
Abstract
The aim of the present study was to profile a multidimensional response to pulmonary rehabilitation in patients with chronic obstructive pulmonary disease (COPD).Dyspnoea, exercise performance, health status, mood status and problematic activities of daily life were assessed before and after a 40-session pulmonary rehabilitation programme in 2068 patients with COPD (mean forced expiratory volume in 1 s of 49% predicted). Patients were ordered by their overall similarity concerning their multidimensional response profile, which comprises the overall response on MRC dyspnoea grade, 6MWD, cycle endurance time, Canadian Occupational Performance Measure performance and satisfaction scores, Hospital Anxiety and Depression Scale anxiety and depression, and St George's Respiratory Questionnaire total score, using a novel non-parametric regression technique.Patients were clustered into four groups with distinct multidimensional response profiles: n=378 (18.3%; "very good responder"), n=742 (35.9%; "good responder"), n=731 (35.4%; "moderate responder"), and n=217 (10.5%; "poor responder"). Patients in the "very good responder" cluster had higher symptoms of dyspnoea, number of hospitalisations <12 months, worse exercise performance, worse performance and satisfaction scores for problematic activities of daily life, more symptoms of anxiety and depression, worse health status, and a higher proportion of patients following an inpatient PR programme compared to the other three clusters.A multidimensional response outcome needs to be considered to study the efficacy of pulmonary rehabilitation services in patients with COPD, as responses to regular outcomes are differential within patients with COPD.
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Affiliation(s)
- Martijn A Spruit
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
| | - Ingrid M L Augustin
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
| | - Lowie E Vanfleteren
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
| | - Daisy J A Janssen
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
| | | | - Herman-Jan Pennings
- Dept of Respiratory Medicine, St. Laurentius Hospital, Roermond, The Netherlands
| | - Frank Smeenk
- Dept of Respiratory Medicine, Catharina Hospital, Eindhoven, The Netherlands
| | - Willem Pieters
- Dept of Respiratory Medicine, Elkerliek Hospital, Helmond, The Netherlands
| | | | - Arent-Jan Michels
- Dept of Respiratory Medicine, St Anna Hospital, Geldrop, The Netherlands
| | - Miriam T J Groenen
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
| | - Erica P A Rutten
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
| | - Emiel F M Wouters
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands Dept of Respiratory Medicine, Maastricht University Medical Center (MUMC+), The Netherlands
| | - Frits M E Franssen
- Dept of Research & Education, CIRO+, Center of Expertise for Chronic Organ Failure, Horn, The Netherlands
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Abstract
BACKGROUND In Canada, although medical insurance is generally universal, significant differences exist in the provision of home oxygen therapy across the country. OBJECTIVE To systematically compare the terms of reference for home oxygen across Canada, with a focus on the clinical inclusion criteria to the programs. METHODS The authors searched the terms of reference of the 10 Canadian provinces and three territories, focusing on general eligibility criteria for home oxygen (including blood gas criteria, and eligibility criteria for ambulatory and nocturnal oxygen), and compared the eligibility criteria to the widely accepted criteria of the Nocturnal Oxygen Therapy Trial (NOTT) trial, the clinical recommendations of the Canadian Thoracic Society and the results of Cochrane reviews. RESULTS The terms of reference for nine provinces were retrieved. All jurisdictions have similar criteria for long-term oxygen therapy, with slight differences in the thresholds of prescription and the clinical criteria defining 'pulmonary hypertension' or 'cor pulmonale'. The use of oxyhemoglobin saturation as a criterion for funding is inconsistent. All nine provinces fund nocturnal oxygen, all with different clinical criteria. Funding for portable oxygen widely varies across provinces, whether the ambulatory equipment is offered to patients on long-term oxygen therapy or to those who have isolated exercise-induced desaturation. The terms of reimbursement are very heterogeneous. CONCLUSIONS Heterogeneity exists in the criteria for eligibility to home oxygen programs and funding across Canada. Terms of prescription and reimbursement of oxygen are not necessarily supported by available evidence from the current literature in several Canadian jurisdictions.
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Dogra AC, Gupta U, Sarkar M, Padam A. Exercise-induced desaturation in patients with chronic obstructive pulmonary disease on six-minute walk test. Lung India 2015; 32:320-5. [PMID: 26180379 PMCID: PMC4502194 DOI: 10.4103/0970-2113.159550] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background and Objectives: Exercise-induced desaturation (EID) is associated with increased mortality in chronic obstructive pulmonary disease (COPD). However, the relationship of EID with anthropometric and clinical parameters of resting pulmonary function test and six-minute walk test (6MWT) in COPD remains unclear. The study was designed to assess the correlate of EID and to identify various possible predictors of EID in stable normoxemic patients of COPD. Materials and Methods: Sixty patients with stable COPD diagnosed and staged as per the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines underwent 6MWT. A drop in standard pulse oximetry (SpO2) of ≥4% or nadir up to ≤88% was defined as EID. Based on EID during 6MWT, two groups were formed: desaturators (DS) and nondesaturators (NDS). DS and NDS were compared for baseline and clinical characters by the Student's t-test while Pearson and Spearman rho correlation coefficient assessed strength of the association of anthropometric and clinical variables with EID. The predictors of EID were identified by logistic regression and receiver operator curve analysis. Result: Out of 60 patients with stable COPD, 33 patients desaturated on exercise (n = 33/60). DS had significantly lower values of FEV1 (P < 0.001), FVC (P < 0.01) FEV1/FVC (P < 0.01) compared to NDS. EID had significant negative correlation with FEV1 (r = 0.31, P < 0.01), resting oxygen saturation (r = 0.549, P < 0.001) and 6MWD (r = 0.511, P < 0.001). Resting SpO2 ≤93% was found to a predictor of EID with a sensitivity and specificity of 83% and 78%, respectively. Interpretation and Conclusion: The 6MWT is a safe and sensitive test to recognize EID in normoxic stable COPD patients. Resting oxygen saturation is a good predictor of EID.
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Affiliation(s)
- Archana Chauhan Dogra
- Department of Physiology, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
| | - Urmil Gupta
- Department of Physiology, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
| | - Malay Sarkar
- Department of Pulmonary Medicine, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
| | - Anita Padam
- Department of Physiology, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
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Hardinge M, Annandale J, Bourne S, Cooper B, Evans A, Freeman D, Green A, Hippolyte S, Knowles V, MacNee W, McDonnell L, Pye K, Suntharalingam J, Vora V, Wilkinson T. British Thoracic Society guidelines for home oxygen use in adults: accredited by NICE. Thorax 2015; 70 Suppl 1:i1-43. [DOI: 10.1136/thoraxjnl-2015-206865] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Carlin BW, Wiles KS, McCoy RW, Brennan T, Easley D, Thomashow RJ. Effects of a Highly Portable Noninvasive Open Ventilation System on Activities of Daily Living in Patients with COPD. CHRONIC OBSTRUCTIVE PULMONARY DISEASES-JOURNAL OF THE COPD FOUNDATION 2015; 2:35-47. [PMID: 28848829 DOI: 10.15326/jcopdf.2.1.2014.0116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background: For patients with chronic obstructive pulmonary disease (COPD), an increase in exercise tolerance and ability to perform activities of daily living (ADLs) can mean an improved quality of life with fewer exacerbations and lower health care expenses. We evaluated a wearable, noninvasive open ventilation (NIOV) system designed to enhance exercise capacity and increase mobility. Methods: Patients with stable, oxygen-dependent COPD were recruited for this prospective, open-label, crossover study. Inclusion criteria included supplemental oxygen use, elevated dyspnea score, and the ability to perform ADLs. Patients performed a selected ADL for as long as tolerable while using standard oxygen therapy. Following a rest period, the same ADL was repeated using the NIOV system. ADL endurance time, oxyhemoglobin saturation measured by pulse oximeter ( SpO2), dyspnea, fatigue, and discomfort scores were recorded. Results: Thirty patients were enrolled and 29 patients completed the study. Mean ADL endurance increased by 85% (13.4 vs. 7.2 min) using NIOV compared with oxygen therapy (p<0.0001). Mean SpO2 was significantly higher during ADLs using NIOV versus oxygen therapy (p<0.0001). Median dyspnea, fatigue, and discomfort scores were significantly lower using NIOV during ADLs compared to oxygen therapy (p<0.01). No device-related adverse events were observed. Conclusions: This study demonstrated that a novel, portable noninvasive open ventilation system can improve ADL performance in the home setting. Compared to standard oxygen therapy, the NIOV system provided statistically and clinically significant increases in ADL endurance time and oxygenation, while decreasing dyspnea, fatigue, and discomfort. The NIOV system appears to offer a practical option for increasing activity and exercise tolerance in oxygen-dependent patients with COPD.
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Affiliation(s)
- Brian W Carlin
- Drexel University School of Medicine, Pittsburgh, Pennsylvania
| | | | | | - Toni Brennan
- Klingensmith HealthCare, Ford City, Pennsylvania
| | - Dan Easley
- Klingensmith HealthCare, Ford City, Pennsylvania
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Abstract
Chronic obstructive pulmonary disease (COPD) is a leading cause of disability and death globally, characterised by progressive breathlessness, loss of function and, in its later stages, chronic hypoxaemia. Long-term continuous oxygen therapy increases life expectancy in patients with severe resting hypoxaemia. However, there are few data to support the use of oxygen in patients with only mild hypoxaemia and more research is required to determine any benefits of oxygen supplementation in COPD in such individuals.
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Affiliation(s)
- Christine F McDonald
- 1 Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Australia ; 2 Institute for Breathing and Sleep, Melbourne, VIC, Australia ; 3 University of Melbourne, Melbourne, VIC, Australia
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Huang H, Yang P, Xue J, Tang J, Ding L, Ma Y, Wang J, Guyatt GH, Vanniyasingam T, Zhang Y. Evaluating the Individualized Treatment of Traditional Chinese Medicine: A Pilot Study of N-of-1 Trials. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:148730. [PMID: 25477988 PMCID: PMC4244929 DOI: 10.1155/2014/148730] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 08/12/2014] [Accepted: 08/15/2014] [Indexed: 11/24/2022]
Abstract
Purpose. To compare the efficacy of individualized herbal decoction with controlled decoction for individual patients with stable bronchiectasis. Methods. We conducted N-of-1 RCTs (single-patient, double-blind, randomized, multiple crossover design) in 3 patients with stable bronchiectasis. The primary outcome was patient self-rated symptom scores on visual analogue scales. Secondary outcome was 24-hour sputum volume. A clinical efficacy criterion which combined symptoms score and medication preference was also formulated. Results. All three patients showed various degrees of improvement on their symptoms and one patient's (Case 3) 24 h sputum volume decreased from 70 mL to 30 mL. However, no significant differences were found between individualized herbal decoction and control decoction on symptoms score, or on 24-hour sputum volume. One patient (Case 2) had clear preference for the individualized herbal decoction over the standard one with the confirmation after unblinding. We therefore considered this case as clinically important. Discussion. N-of-1 trials comply with individualized philosophy of TCM clinical practice and had good compliance. It is necessary to set up clinical efficacy criteria and to consider the interference of acute exacerbation.
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Affiliation(s)
- Haiyin Huang
- Department of Respiratory Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Peilan Yang
- Department of Respiratory Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Jingjing Xue
- Department of Respiratory Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Jie Tang
- Department of Respiratory Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Liyu Ding
- Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Ying Ma
- Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Jie Wang
- Department of Respiratory Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Gordon H. Guyatt
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada L8S 4K1
| | - Thuva Vanniyasingam
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada L8S 4K1
| | - Yuqing Zhang
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada L8S 4K1
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Kadamani I, Itani M, Zahran E, Taha N. Incidence of aspiration and gastrointestinal complications in critically ill patients using continuous versus bolus infusion of enteral nutrition: A pseudo-randomised controlled trial. Aust Crit Care 2014; 27:188-93. [DOI: 10.1016/j.aucc.2013.12.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 11/29/2013] [Accepted: 12/24/2013] [Indexed: 01/15/2023] Open
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Abramson MJ, Perret JL, Dharmage SC, McDonald VM, McDonald CF. Distinguishing adult-onset asthma from COPD: a review and a new approach. Int J Chron Obstruct Pulmon Dis 2014; 9:945-62. [PMID: 25246782 PMCID: PMC4166213 DOI: 10.2147/copd.s46761] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Adult-onset asthma and chronic obstructive pulmonary disease (COPD) are major public health burdens. This review presents a comprehensive synopsis of their epidemiology, pathophysiology, and clinical presentations; describes how they can be distinguished; and considers both established and proposed new approaches to their management. Both adult-onset asthma and COPD are complex diseases arising from gene-environment interactions. Early life exposures such as childhood infections, smoke, obesity, and allergy influence adult-onset asthma. While the established environmental risk factors for COPD are adult tobacco and biomass smoke, there is emerging evidence that some childhood exposures such as maternal smoking and infections may cause COPD. Asthma has been characterized predominantly by Type 2 helper T cell (Th2) cytokine-mediated eosinophilic airway inflammation associated with airway hyperresponsiveness. In established COPD, the inflammatory cell infiltrate in small airways comprises predominantly neutrophils and cytotoxic T cells (CD8 positive lymphocytes). Parenchymal destruction (emphysema) in COPD is associated with loss of lung tissue elasticity, and small airways collapse during exhalation. The precise definition of chronic airflow limitation is affected by age; a fixed cut-off of forced expiratory volume in 1 second/forced vital capacity leads to overdiagnosis of COPD in the elderly. Traditional approaches to distinguishing between asthma and COPD have highlighted age of onset, variability of symptoms, reversibility of airflow limitation, and atopy. Each of these is associated with error due to overlap and convergence of clinical characteristics. The management of chronic stable asthma and COPD is similarly convergent. New approaches to the management of obstructive airway diseases in adults have been proposed based on inflammometry and also multidimensional assessment, which focuses on the four domains of the airways, comorbidity, self-management, and risk factors. Short-acting beta-agonists provide effective symptom relief in airway diseases. Inhalers combining a long-acting beta-agonist and corticosteroid are now widely used for both asthma and COPD. Written action plans are a cornerstone of asthma management although evidence for self-management in COPD is less compelling. The current management of chronic asthma in adults is based on achieving and maintaining control through step-up and step-down approaches, but further trials of back-titration in COPD are required before a similar approach can be endorsed. Long-acting inhaled anticholinergic medications are particularly useful in COPD. Other distinctive features of management include pulmonary rehabilitation, home oxygen, and end of life care.
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Affiliation(s)
- Michael J Abramson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Jennifer L Perret
- Centre for Epidemiology and Biostatistics, University of Melbourne, Melbourne, Australia
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Australia
| | - Shyamali C Dharmage
- Centre for Epidemiology and Biostatistics, University of Melbourne, Melbourne, Australia
| | - Vanessa M McDonald
- Priority Research Centre for Asthma and Respiratory Disease, University of Newcastle, Newcastle, Australia
| | - Christine F McDonald
- Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Australia
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Güell Rous MR, Díaz Lobato S, Rodríguez Trigo G, Morante Vélez F, San Miguel M, Cejudo P, Ortega Ruiz F, Muñoz A, Galdiz Iturri JB, García A, Servera E. Pulmonary rehabilitation. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.arbr.2014.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ameer F, Carson KV, Usmani ZA, Smith BJ. Ambulatory oxygen for people with chronic obstructive pulmonary disease who are not hypoxaemic at rest. Cochrane Database Syst Rev 2014; 2014:CD000238. [PMID: 24957353 PMCID: PMC7032676 DOI: 10.1002/14651858.cd000238.pub2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND People with chronic obstructive pulmonary disease (COPD) often become transiently hypoxaemic (low oxygen levels in blood) on exercise, necessitating oxygen therapy to improve breathlessness and exercise capacity and to reduce disability. Ambulatory oxygen therapy refers to provision of oxygen therapy during exercise and activities of daily living. Ambulatory oxygen therapy is often used by patients on long-term oxygen therapy (LTOT) during exercise or by non-LTOT users with or without resting hypoxaemia when they show evidence of exercise de-saturation and demonstrate improvement in exercise capacity with supplemental oxygen. OBJECTIVES To determine the longer-term efficacy of ambulatory oxygen therapy only in patients with COPD who do not meet the criteria for LTOT, with respect to improvement in exercise capacity, mortality, quality of life and other relevant measures of improvement. SEARCH METHODS The Cochrane Airways Group Specialised Register, including MEDLINE, EMBASE and CINAHL, was searched. Online clinical trial registers, including Controlled Clinical Trials (www.controlled-trials.com), government registries (clinicaltrials.gov) and World Health Organization (WHO) registries (www.who.int/trialsearch), were screened for ongoing and recently completed studies. Bibliographies of included studies were searched for additional trials that may meet the inclusion criteria and were not retrieved by the above search strategy. Authors of identified trials were contacted to provide other published and unpublished studies. Searches were current as of November 2012. SELECTION CRITERIA Randomised controlled trials (RCTs) that compare ambulatory oxygen therapy provided through portable oxygen cylinders/battery-powered devices or liquid oxygen canisters versus placebo air cylinders, usual medical care or co-intervention in study participants with COPD who did not meet criteria for LTOT. DATA COLLECTION AND ANALYSIS We used standard methods as expected by The Cochrane Collaboration. MAIN RESULTS Four studies met the inclusion criteria (331 participants), with two studies producing a statistically and clinically significant benefit in favour of the intervention for dyspnoea post exercise.The quality of life domain for all four included studies produced a statistically significant benefit for the subcategories of dyspnoea and fatigue, in favour of the oxygen group (dyspnoea mean difference (MD) 0.28, 95% confidence interval (CI) 0.10 to 0.45; P value 0.002; fatigue MD 0.17, 95% CI 0.04 to 0.31; P value 0.009). No evidence of any effect was reported for survival, and limited benefits were observed for exercise capacity (as measured by step test and distance walk test), with one study showing a statistically significant improvement in the number of steps taken in the oxygen group for group N-of-1 studies only. No other statistically significant benefits were observed for exercise capacity among the other trials or individual N-of-1 studies. AUTHORS' CONCLUSIONS In patients with COPD with moderate hypoxia, current evidence on ambulatory oxygen therapy reveals improvements in dyspnoea post exercise and in the dyspnoea and fatigue domain of quality of life. However, evidence for the clinical utility and effectiveness of ambulatory oxygen in improving mortality and exercise capacity was not evident in this review. Methodologically rigorous RCTs with sufficient power to detect a difference are required to investigate the role of ambulatory oxygen in the management of COPD.
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Affiliation(s)
| | - Kristin V Carson
- The Queen Elizabeth HospitalDepartment of Medicine, University of AdelaideAdelaideAustralia
| | - Zafar A Usmani
- The Queen Elizabeth HospitalDepartment of Respiratory Medicine4A, Main Building, 28 Woodville RoadWoodville SouthAdelaideAustraliaSA 5011
| | - Brian J Smith
- The Queen Elizabeth HospitalDepartment of Medicine, University of AdelaideAdelaideAustralia
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Güell Rous MR, Díaz Lobato S, Rodríguez Trigo G, Morante Vélez F, San Miguel M, Cejudo P, Ortega Ruiz F, Muñoz A, Galdiz Iturri JB, García A, Servera E. Pulmonary rehabilitation. Sociedad Española de Neumología y Cirugía Torácica (SEPAR). Arch Bronconeumol 2014; 50:332-44. [PMID: 24845559 DOI: 10.1016/j.arbres.2014.02.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 02/13/2014] [Accepted: 02/17/2014] [Indexed: 10/25/2022]
Abstract
Pulmonary rehabilitation (PR) has been shown to improve dyspnea, exercise capacity and health-related quality of life in patients with chronic obstructive pulmonary disease (COPD). PR has also shown benefits in diseases other than COPD but the level of evidence is lower. The fundamental components of PR programs are muscle training, education and chest physiotherapy. Occupational therapy, psychosocial support and nutritional intervention should also be considered. Home programs have been shown to be as effective as hospital therapy. The duration of rehabilitation programs should not be less than 8 weeks or 20 sessions. Early initiation of PR, even during exacerbations, has proven safe and effective. The use of oxygen or noninvasive ventilation during training is controversial and dependent on the patient's situation. At present, the best strategy for maintaining the benefits of PR in the long term is unknown. Longer PR programs or telemedicine could play a key role in extending the results obtained.
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Affiliation(s)
| | | | - Gema Rodríguez Trigo
- Servicio de Neumología, Hospital Clínico San Carlos, Facultad de Medicina, Universidad Complutense, Madrid, España
| | | | - Marta San Miguel
- Facultad de Ciencias de la Salud, Universidad San Jorge, Villanueva de Gállego, Zaragoza, España
| | - Pilar Cejudo
- Servicio de Neumología, Hospital Virgen del Rocío, CIBERES, IBIS, Sevilla, España
| | | | - Alejandro Muñoz
- Servicio de Neumología, Hospital General Universitario de Elda, Elda, Alicante, España
| | | | - Almudena García
- Servicio de Neumología, Hospital Universitario Central de Asturias, Oviedo, España
| | - Emilio Servera
- Servicio de Neumología, Hospital Clínico de Valencia, Valencia, España
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Ortega Ruiz F, Díaz Lobato S, Galdiz Iturri JB, García Rio F, Güell Rous R, Morante Velez F, Puente Maestu L, Tàrrega Camarasa J. Oxigenoterapia continua domiciliaria. Arch Bronconeumol 2014; 50:185-200. [DOI: 10.1016/j.arbres.2013.11.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 11/22/2013] [Accepted: 11/24/2013] [Indexed: 11/24/2022]
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Antoniu S, Mihaltan F. Outcome measures for palliative oxygen therapy: relevance and practical utility. Expert Rev Pharmacoecon Outcomes Res 2014; 14:417-23. [PMID: 24741999 DOI: 10.1586/14737167.2014.906308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Dyspnea is a common symptom in many advanced malignant and non-malignant diseases and often is refractory to the usual therapies. In such circumstances palliative care approaches are necessary and among them palliative care oxygen therapy can be applied although currently its effectiveness is rather uncertain. Palliative oxygen therapy can be given on either continuous basis or on demand. Often the continuous palliative oxygen therapy is seen as long-term oxygen therapy although their aims are rather different. Palliative oxygen therapy was evaluated in populations with mixed underlying diseases, with outcome measures not only the most appropriate for the setting and therefore these limitations might have influenced the overall perceived therapeutic benefit. Therefore an evaluation of this method in subsets defined based on the etiology and pathogenic mechanisms and with appropriate outcome measures would help to better define the criteria for its indication and would increase its acceptability.
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Affiliation(s)
- Sabina Antoniu
- Department of Interdisciplinarity, Palliative Care Nursing, University of Medicine and Pharmacy, "Grigore T Popa" , 16 Universitatii Str, Iasi, 700115 , Romania
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43
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McDonald CF, Khor Y. Advances in chronic obstructive pulmonary disease. Intern Med J 2013; 43:854-62. [DOI: 10.1111/imj.12219] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 05/28/2013] [Indexed: 11/30/2022]
Affiliation(s)
- C. F. McDonald
- Respiratory and Sleep Medicine; Austin Hospital; Melbourne Victoria Australia
| | - Y. Khor
- Respiratory and Sleep Medicine; Austin Hospital; Melbourne Victoria Australia
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Effect of ambulatory oxygen on exertional dyspnea in IPF patients without resting hypoxemia. Respir Med 2013; 107:1241-6. [DOI: 10.1016/j.rmed.2013.05.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 03/26/2013] [Accepted: 05/16/2013] [Indexed: 12/14/2022]
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Synthesis, grading, and presentation of evidence in guidelines: article 7 in Integrating and coordinating efforts in COPD guideline development. An official ATS/ERS workshop report. Ann Am Thorac Soc 2013; 9:256-61. [PMID: 23256168 DOI: 10.1513/pats.201208-060st] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION Professional societies, like many other organizations around the world, have recognized the need to use more rigorous processes to ensure that health care recommendations are informed by the best available research evidence. This is the seventh of a series of 14 articles that were prepared to advise guideline developers in respiratory and other diseases on approaches for guideline development. This article focuses on synthesizing, rating, and presenting evidence in guidelines. METHODS In this review we addressed the following questions. (1) What evidence should guideline panels use to inform their recommendations? (2) How should they rate the quality of the evidence they use? (3) How should they grade evidence regarding diagnostic tests? (4) What should they do when quality of evidence differs across outcomes? (5) How should they present the evidence in a guideline? We did not conduct systematic reviews ourselves. We relied on prior evaluations of electronic databases and systematic reviews suggesting that the Grades of Recommendation, Assessment, Development and Evaluation Working Group (GRADE) approach includes the desired features of a system for grading quality of evidence, including provision of models for presenting evidence for guideline panels, and for the consumers of practice guidelines. This article describes the GRADE approach to grading the quality of evidence and presenting evidence. Available evidence, the practice of leading guideline developers, and workshop discussions provide the basis for our conclusions. RESULTS AND DISCUSSION GRADE rates the quality of evidence for each outcome across studies rather than for each study. In the GRADE approach randomized trials start as high-quality evidence and observational studies as low-quality evidence, but both can be rated down or up. Five factors may lead to rating down the quality of evidence: study limitations or risk of bias, inconsistency of results, indirectness of evidence, imprecision, and publication bias. Three factors may lead to rating up the quality of evidence from observational studies: large magnitude of effect, dose-response gradient, and situations in which all plausible confounders would decrease an apparent treatment effect, or would create a spurious effect when results suggest no effect. GRADE suggests use of evidence profiles that provide a comprehensive way to display the key evidence relevant to a clinical question. Guideline developers who follow this structure will find the transparency of their recommendations markedly enhanced.
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Abstract
Long-term oxygen therapy (LTOT) has been shown to reduce pulmonary hypertension and improve survival in patients with chronic obstructive pulmonary disease and resting hypoxemia (reduced arterial partial pressure of oxygen ≤55 mmHg). However, the benefit of its use for chronic pulmonary diseases other than chronic obstructive pulmonary disease as well as for nonpulmonary conditions is debatable. Its role in patients with mild hypoxemia (reduced arterial partial pressure of oxygen >55 mmHg at rest) is presently being investigated in the LOTT. A meta-analysis of four controlled trials reporting the role of LTOT in patients with either nocturnal desaturation or daytime moderate hypoxemia found no difference in survival between patients on LTOT than those without. Advances in oxygen delivery and conservation devices have made domiciliary oxygen therapy more practical and popular for patients. There still remain concerns with the actual compliance of therapy among the needy patients.
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Affiliation(s)
- Surinder K Jindal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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Johnson MJ, Abernethy AP, Currow DC. The evidence base for oxygen for chronic refractory breathlessness: issues, gaps, and a future work plan. J Pain Symptom Manage 2013; 45:763-75. [PMID: 23017616 DOI: 10.1016/j.jpainsymman.2012.03.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 03/03/2012] [Accepted: 03/09/2012] [Indexed: 10/27/2022]
Abstract
Breathlessness or "shortness of breath," medically termed dyspnea, is a common and distressing symptom featuring strongly in advanced lung, cardiac, and neuromuscular diseases; its prevalence and intensity increase as death approaches. However, despite the increasing understanding in the genesis of breathlessness, as well as an increasing portfolio of treatment options, breathlessness is still difficult to manage and engenders helplessness in caregivers and health care professionals and fear for patients. Although hypoxemia does not appear to be the dominant driver for breathlessness in advanced disease, the belief that oxygen is important for the relief of acute, chronic, and acute-on-chronic shortness of breath is firmly embedded in the minds of patients, caregivers, and health care professionals. This article presents current understanding of the use of oxygen for treating refractory breathlessness in advanced disease. The objective is to highlight what is still unknown, set a research agenda to resolve these questions, and highlight methodological issues for consideration in planned studies.
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Affiliation(s)
- Miriam J Johnson
- Palliative Medicine, Hull York Medical School, University of Hull, Hull, United Kingdom.
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Ringbaek T, Martinez G, Lange P. The long-term effect of ambulatory oxygen in normoxaemic COPD patients. Chron Respir Dis 2013; 10:77-84. [DOI: 10.1177/1479972312473135] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aim: To study the long-term benefits of ambulatory oxygen (AO) in combination with pulmonary rehabilitation (PR) in chronic obstructive pulmonary disease (COPD) patients experiencing exertional desaturation. Patients and methods: Normoxaemic COPD who participated in outpatient PR and desaturated >4% and <90% during endurance shuttle walk test (ESWT) were randomised to control ( n = 23) or AO 2 L/min from a portable oxygen concentrator ( n = 22) to be used during exercise. PR consisted of supervised training for 20 weeks combined with unsupervised daily training at home followed by 13 weeks without supervised training. Results: Only 45 of 165 eligible patients wanted to participate. Mean forced expiratory volume in 1 s = 32% ( SD 13.8) and Medical Research Council (MRC) = 4.5 (3–5). Supplemental oxygen improved oxygen saturation during ESWT by 2.3% (95% CI: 1.2%–3.5%; p < 0.001). In the study period of 33 weeks, 10 and 6 patients withdrew from the AO group and control group, respectively. Patients spent an average of 7.9 h/week on oxygen. PR improved ESWT by 18,076 s (95% CI: 101–258 s; p < 0.001) and St. George’s Respiratory Questionnaire (SGRQ) score by 2.6 units (95% CI: 0.1–5.1 s; p = 0.04) after 7 weeks, and these gains remained at 33 weeks of evaluation. There were no differences between the AO group and control group at 33 weeks of evaluation with regard to change in ESWT (223 vs. 241 s; p = 0.32), change in SGRQ (−3.6 vs. −4.5 units, 0.91), and number of patients with acute exacerbation in COPD (AECOPD), hospital admission or dropout (17 of 22 vs. 20 of 23, p = 0.59). Conclusions: AO seems not to provide additional beneficial effects in patients with COPD participating in pulmonary rehabilitation and experiencing exertional desaturation without severe resting hypoxaemia.
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Affiliation(s)
- Thomas Ringbaek
- Department of Respiratory Medicine, University Hospital of Copenhagen, Hvidovre, Denmark
| | - Gerd Martinez
- Department of Respiratory Medicine, University Hospital of Copenhagen, Hvidovre, Denmark
| | - Peter Lange
- Department of Respiratory Medicine, University Hospital of Copenhagen, Hvidovre, Denmark
- Department of Public Health, University of Copenhagen, Section of Social Medicine, Copenhagen, Denmark
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Breaden K, Phillips J, Agar M, Grbich C, Abernethy AP, Currow DC. The clinical and social dimensions of prescribing palliative home oxygen for refractory dyspnea. J Palliat Med 2013; 16:268-73. [PMID: 23289922 DOI: 10.1089/jpm.2012.0102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Chronic breathlessness is a significant problem in palliative care and oxygen is often prescribed in an attempt to ameliorate it. Often, this prescription falls outside the current funding guidelines for long-term home oxygen use. The aim of this qualitative study was to understand the factors that most influence Australian specialist palliative care nurses' initiation of home oxygen for their patients. METHODS A series of focus groups were held across three states in Australia in 2011 involving specialist palliative care nurses. The invitation to the nurses was sent by e-mail through their national association. Recorded and transcribed data were coded for themes and subthemes. A summary, which included quotes, was provided to participants to confirm. RESULTS Fifty-one experienced palliative care nurses participated in seven focus groups held in three capital cities. Two major themes were identified: 1) logistic/health service issues (not reported in this paper as specific to the Australian context) involving the local context of prescribing and, 2) clinical care issues that involved assessing the patient's need for home oxygen and ongoing monitoring concerns. Palliative care nurses involved in initiating or prescribing oxygen often reported using oxygen as a second-line treatment after other interventions had been trialed and these had not provided sufficient symptomatic benefit. Safety issues were a universal concern and a person living alone did not emerge as a specific issue among the nurses interviewed. CONCLUSION The role of oxygen is currently seen as a second-line therapy in refractory dyspnea by specialist palliative care nurses.
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Affiliation(s)
- Katrina Breaden
- Palliative and Support Services, Flinders University, Adelaide, South Australia, Australia
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Goldstein RS, Hill K, Brooks D, Dolmage TE. Pulmonary rehabilitation: a review of the recent literature. Chest 2013; 142:738-749. [PMID: 22948578 DOI: 10.1378/chest.12-0188] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Pulmonary rehabilitation (PR) is an evidence-based, multidisciplinary, comprehensive intervention that can be integrated into the management of individuals with chronic lung disease. It aims to reduce symptoms, optimize function, increase participation in daily life, and reduce health-care resource utilization. In this review, we summarize the new developments in PR over the past 5 years. Issues related to patient assessment include a comparison of cycle- and walking-based measures of exercise capacity, the emergence of multidimensional indices, the refinement of the minimal clinically important difference, and the importance of assessing physical activity. Issues related to exercise training focus on strategies to optimize the training load. We also comment on the acquisition of self-management skills, balance training, optimizing access, and maintaining gains following completion of PR.
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Affiliation(s)
- Roger S Goldstein
- Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, ON, Canada; Department of Physical Therapy, University of Toronto, Toronto, ON, Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada.
| | - Kylie Hill
- School of Physiotherapy and Curtin Health Innovation Research Institute, Curtin University, Bentley, WA, Australia; Lung Institute of Western Australia and Centre for Asthma, Allergy and Respiratory Research, University of Western Australia, Crawley, WA, Australia
| | - Dina Brooks
- Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, ON, Canada; Department of Physical Therapy, University of Toronto, Toronto, ON, Canada
| | - Thomas E Dolmage
- Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, ON, Canada; Respiratory Diagnostic and Evaluation Services, West Park Healthcare Centre, Toronto, ON, Canada
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