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Ghanei M, Philip KEJ, Moghadam MRS, Hosseini H, Babaie A, Roustanezhad M, Hopkinson NS. Pulmonary rehabilitation in Iranian outpatients with mustard gas lung disease: a randomised controlled trial. BMJ Open 2024; 14:e083085. [PMID: 38806414 PMCID: PMC11138312 DOI: 10.1136/bmjopen-2023-083085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 05/15/2024] [Indexed: 05/30/2024] Open
Abstract
OBJECTIVE People with mustard gas lung disease experience cough, sputum, breathlessness and exercise limitation. We hypothesised that pulmonary rehabilitation (PR) would be beneficial in this condition. DESIGN An assessor-blind, two-armed, parallel-design randomised controlled clinical trial. SETTING Secondary care clinics in Iran. PARTICIPANTS 60 men with breathlessness due to respiratory disease caused by documented mustard gas exposure, mean (SD) age 52.7 (4.36) years, MRC dyspnoea score 3.5 (0.7), St. George's Respiratory Questionnaire (SGRQ) 72.3 (15.2). INTERVENTIONS Participants were allocated either to a 6-week course of thrice-weekly PR (n=31) or to usual care (n=29), with 6-week data for 28 and 26, respectively. OUTCOME MEASURES Primary endpoint was change in cycle endurance time at 70% baseline exercise capacity at 6 weeks. Secondary endpoints included 6 min walk distance, quadriceps strength and bulk, body composition and health status. For logistical reasons, blood tests that had been originally planned were not performed and 12-month follow-up was available for only a small proportion. RESULTS At 6 weeks, cycle endurance time increased from 377 (140) s to 787 (343) s with PR vs 495 (171) s to 479 (159) s for usual care, effect size +383 (231) s (p<0.001). PR also improved 6 min walk distance+103.2 m (63.6-142.9) (p<0.001), MRC dyspnoea score -0.36 (-0.65 to -0.07) (p=0.016) and quality of life; SGRQ -8.43 (-13.38 to -3.48) p<0.001, as well as quadriceps strength+9.28 Nm (1.89 to 16.66) p=0.015. CONCLUSION These data suggest that PR can improve exercise capacity and quality of life in people with breathlessness due to mustard gas lung disease and support the wider provision of this form of care. TRIAL REGISTRATION NUMBER IRCT2016051127848N1.
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Affiliation(s)
- Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran (the Islamic Republic of)
| | - Keir E J Philip
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Hamed Hosseini
- Clinical Trial Center, Tehran University of Medical Sciences, Tehran, Iran (the Islamic Republic of)
| | - Aliakbar Babaie
- Janbazan Medical and Engineering Research Center, Tehran, Iran (the Islamic Republic of)
| | - Mohammad Roustanezhad
- Janbazan Medical and Engineering Research Center, Tehran, Iran (the Islamic Republic of)
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Brand K, Wise T, Hess AJ, Russell BR, Stephan KE, Harrison OK. Incorporating uncertainty within dynamic interoceptive learning. Front Psychol 2024; 15:1254564. [PMID: 38646115 PMCID: PMC11026658 DOI: 10.3389/fpsyg.2024.1254564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/18/2024] [Indexed: 04/23/2024] Open
Abstract
Introduction Interoception, the perception of the internal state of the body, has been shown to be closely linked to emotions and mental health. Of particular interest are interoceptive learning processes that capture associations between environmental cues and body signals as a basis for making homeostatically relevant predictions about the future. One method of measuring respiratory interoceptive learning that has shown promising results is the Breathing Learning Task (BLT). While the original BLT required binary predictions regarding the presence or absence of an upcoming inspiratory resistance, here we extended this paradigm to capture continuous measures of prediction (un)certainty. Methods Sixteen healthy participants completed the continuous version of the BLT, where they were asked to predict the likelihood of breathing resistances on a continuous scale from 0.0 to 10.0. In order to explain participants' responses, a Rescorla-Wagner model of associative learning was combined with suitable observation models for continuous or binary predictions, respectively. For validation, we compared both models against corresponding null models and examined the correlation between observed and modeled predictions. The model was additionally extended to test whether learning rates differed according to stimuli valence. Finally, summary measures of prediction certainty as well as model estimates for learning rates were considered against interoceptive and mental health questionnaire measures. Results Our results demonstrated that the continuous model fits closely captured participant behavior using empirical data, and the binarised predictions showed excellent replicability compared to previously collected data. However, the model extension indicated that there were no significant differences between learning rates for negative (i.e. breathing resistance) and positive (i.e. no breathing resistance) stimuli. Finally, significant correlations were found between fatigue severity and both prediction certainty and learning rate, as well as between anxiety sensitivity and prediction certainty. Discussion These results demonstrate the utility of gathering enriched continuous prediction data in interoceptive learning tasks, and suggest that the updated BLT is a promising paradigm for future investigations into interoceptive learning and potential links to mental health.
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Affiliation(s)
- Katja Brand
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland
- Department of Psychology, University of Otago, Dunedin, New Zealand
| | - Toby Wise
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, United Kingdom
| | - Alexander J. Hess
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland
| | | | - Klaas E. Stephan
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland
- Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Olivia K. Harrison
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland
- Department of Psychology, University of Otago, Dunedin, New Zealand
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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Wang T, Huang X, Dai LX, Zhan KM, Wang J. Investigation of altered spontaneous brain activity in patients with bronchial asthma using the percent amplitude of fluctuation method: a resting-state functional MRI study. Front Hum Neurosci 2023; 17:1228541. [PMID: 38098762 PMCID: PMC10719853 DOI: 10.3389/fnhum.2023.1228541] [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: 05/26/2023] [Accepted: 11/06/2023] [Indexed: 12/17/2023] Open
Abstract
Purpose To explore the regions of aberrant spontaneous brain activity in asthma patients and their potential impacts using the Percent amplitude of fluctuation (PerAF) analysis method. Patients and methods In this study, a total of 31 bronchial asthma (BA) patients were ultimately included, comprising 17 males and 14 females. Subsequently, 31 healthy control subjects (HCS) were recruited, consisting of 17 males and 14 females, and they were matched with the BA group based on age, sex, and educational status. The PerAF analysis technique was employed to study the differences in spontaneous brain activity between the two groups. The SPM12 toolkit was used to carry out a two sample t-test on the collected fMRI data, in order to examine the differences in PerAF values between the asthma patients and the healthy controls. We employed the Montreal Cognitive Assessment (MoCA) scale and the Hamilton Depression Scale (HAMD) to evaluate the cognitive and emotional states of the two groups. Pearson correlation analysis was utilized to ascertain the relationship between changes in the PerAF values within specific brain regions and cognitive as well as emotional conditions. Results Compared with the healthy control group, areas of the brain with reduced PerAF in asthma patients included the inferior cerebellum, fusiform gyrus, right inferior orbital frontal gyrus, left middle orbital frontal gyrus, left/right middle frontal gyrus (MFG), dorsal lateral superior frontal gyrus (SFGdl), left superior temporal gyrus (STG), precuneus, right inferior parietal lobule (IPL), and left/right angular gyrus. BA patients exhibit mild cognitive impairments and a propensity for emotional disturbances. Furthermore, the perAF values of the SFGdl region are significantly positively correlated with the results of the MoCA cognitive assessment, while negatively correlated with the HAMD evaluation. Conclusion Through the application of PerAF analysis methods, we discovered that several brain regions in asthma patients that control the amplitude of respiration, vision, memory, language, attention, and emotional control display abnormal changes in intrinsic brain activity. This helps characterize the neural mechanisms behind cognitive, sensory, and motor function impairments in asthma patients, providing valuable insights for potential therapeutic targets and disease management strategies.
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Affiliation(s)
- Tao Wang
- Medical College of Nanchang University, Nanchang, China
- The Second Department of Respiratory Disease, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Xin Huang
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Li-xue Dai
- The Second Department of Respiratory Disease, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Kang-min Zhan
- Medical College of Nanchang University, Nanchang, China
- The Second Department of Respiratory Disease, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jun Wang
- The Second Department of Respiratory Disease, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
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Betka S, Kannape OA, Fasola J, Lance F, Cardin S, Schmit A, Similowski T, Soccal PM, Herbelin B, Adler D, Blanke O. Virtual reality intervention alleviates dyspnoea in patients recovering from COVID-19 pneumonia. ERJ Open Res 2023; 9:00570-2022. [PMID: 38020572 PMCID: PMC10658613 DOI: 10.1183/23120541.00570-2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 08/08/2023] [Indexed: 12/01/2023] Open
Abstract
Background Immersive virtual reality (iVR)-based digital therapeutics are gaining clinical attention in the field of pain management. Based on known analogies between pain and dyspnoea, we investigated the effects of visual respiratory feedback on persistent dyspnoea in patients recovering from coronavirus disease 2019 (COVID-19) pneumonia. Methods We performed a controlled, randomised, single-blind, crossover proof-of-concept study (feasibility and initial clinical efficacy) to evaluate an iVR-based intervention to alleviate dyspnoea in patients recovering from COVID-19 pneumonia. Included patients reported persistent dyspnoea (≥5 on a 10-point scale) and preserved cognitive function (Montreal Cognitive Assessment score >24). Assignment was random and concealed. Patients received synchronous (intervention) or asynchronous (control) feedback of their breathing, embodied via a gender-matched virtual body. The virtual body flashed in a waxing and waning visual effect that could be synchronous or asynchronous to the patient's respiratory movements. Outcomes were assessed using questionnaires and breathing recordings. Results Study enrolment was open between November 2020 and April 2021. 26 patients were enrolled (27% women; median age 55 years, interquartile range (IQR) 18 years). Data were available for 24 of 26 patients. The median rating on a 7-point Likert scale of breathing comfort improved from 1 (IQR 2) at baseline to 2 (IQR 1) for synchronous feedback, but remained unchanged at 1 (IQR 1.5) for asynchronous feedback (p<0.05 between iVR conditions). Moreover, 91.2% of all patients were satisfied with the intervention (p<0.0001) and 66.7% perceived it as beneficial for their breathing (p<0.05). Conclusion Our iVR-based digital therapy presents a feasible and safe respiratory rehabilitation tool that improves breathing comfort in patients recovering from COVID-19 infection presenting with persistent dyspnoea. Future research should investigate the intervention's generalisability to persistent dyspnoea with other aetiologies and its potential for preventing chronification.
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Affiliation(s)
- Sophie Betka
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne, Geneva, Switzerland
- Joint first authors
| | - Oliver Alan Kannape
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne, Geneva, Switzerland
- MindMaze SA, Lausanne, Switzerland
- Virtual Medicine Center, University Hospital Geneva, Geneva, Switzerland
- Joint first authors
| | - Jemina Fasola
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne, Geneva, Switzerland
| | - Florian Lance
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne, Geneva, Switzerland
| | | | - Aline Schmit
- Division of Lung Diseases, University Hospital and Geneva Medical School, University of Geneva, Geneva, Switzerland
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, Paris, France
| | - Paola Marina Soccal
- Division of Lung Diseases, University Hospital and Geneva Medical School, University of Geneva, Geneva, Switzerland
| | - Bruno Herbelin
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne, Geneva, Switzerland
- Joint senior authors
| | - Dan Adler
- Division of Lung Diseases, University Hospital and Geneva Medical School, University of Geneva, Geneva, Switzerland
- Joint senior authors
| | - Olaf Blanke
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Federale de Lausanne, Geneva, Switzerland
- Joint senior authors
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Peiffer C. Puzzled by dysfunctional breathing disorder(s)? Consider the Bayesian brain hypothesis! Front Neurosci 2023; 17:1270556. [PMID: 37877012 PMCID: PMC10593455 DOI: 10.3389/fnins.2023.1270556] [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: 07/31/2023] [Accepted: 09/14/2023] [Indexed: 10/26/2023] Open
Abstract
There is currently growing clinical concern regarding dysfunctional breathing disorder(s) (DBD), an umbrella term for a set of multidimensional clinical conditions that are characterized by altered breathing pattern associated with a variety of intermittent or chronic symptoms, notably dyspnea, in the absence or in excess of, organic disease. However, several aspects of DBD remain poorly understood and/or open to debate, especially the inconsistent relationship between the array of experienced symptoms and their supposedly underlying mechanisms. This may be partly due to a more general problem, i.e., the prevailing way we conceptualize symptoms. In the present article, after a brief review of the different aspects of DBD from the current perspective, I submit a call for considering DBD under the innovating perspective of the Bayesian brain hypothesis, i.e., a potent and novel model that fundamentally changes our views on symptom perception.
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Affiliation(s)
- Claudine Peiffer
- Dyspnea Clinic, Department of Physiology, University Children Hospital Robert Debré (AP-HP), Paris, France
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Finnegan SL, Browning M, Duff E, Harmer CJ, Reinecke A, Rahman NM, Pattinson KTS. Brain activity measured by functional brain imaging predicts breathlessness improvement during pulmonary rehabilitation. Thorax 2023; 78:852-859. [PMID: 36572534 PMCID: PMC10447378 DOI: 10.1136/thorax-2022-218754] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 11/20/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Chronic breathlessness in chronic obstructive pulmonary disease (COPD) is effectively treated with pulmonary rehabilitation. However, baseline patient characteristics predicting improvements in breathlessness are unknown. This knowledge may provide better understanding of the mechanisms engaged in treating breathlessness and help to individualise therapy. Increasing evidence supports the role of expectation (ie, placebo and nocebo effects) in breathlessness perception. In this study, we tested functional brain imaging markers of breathlessness expectation as predictors of therapeutic response to pulmonary rehabilitation, and asked whether D-cycloserine, a brain-active drug known to influence expectation mechanisms, modulated any predictive model. METHODS Data from 71 participants with mild-to-moderate COPD recruited to a randomised double-blind controlled experimental medicine study of D-cycloserine given during pulmonary rehabilitation were analysed (ID: NCT01985750). Baseline variables, including brain-activity, self-report questionnaires responses, clinical measures of respiratory function and drug allocation were used to train machine-learning models to predict the outcome, a minimally clinically relevant change in the Dyspnoea-12 score. RESULTS Only models that included brain imaging markers of breathlessness-expectation successfully predicted improvements in Dyspnoea-12 score (sensitivity 0.88, specificity 0.77). D-cycloserine was independently associated with breathlessness improvement. Models that included only questionnaires and clinical measures did not predict outcome (sensitivity 0.68, specificity 0.2). CONCLUSIONS Brain activity to breathlessness related cues is a strong predictor of clinical improvement in breathlessness over pulmonary rehabilitation. This implies that expectation is key in breathlessness perception. Manipulation of the brain's expectation pathways (either pharmacological or non-pharmacological) therefore merits further testing in the treatment of chronic breathlessness.
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Affiliation(s)
- Sarah L Finnegan
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Michael Browning
- Oxford Health NHS Foundation Trust, Warneford Hospital, NHS, Oxford, UK
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Eugene Duff
- Department of Paediatrics, University of Oxford, Oxford, UK
| | - Catherine J Harmer
- Oxford Health NHS Foundation Trust, Warneford Hospital, NHS, Oxford, UK
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Andrea Reinecke
- Oxford Health NHS Foundation Trust, Warneford Hospital, NHS, Oxford, UK
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Najib M Rahman
- Oxford Respiratory Trials Unit, University of Oxford, Oxford, UK
- Oxford Chinese Academy of Medicine Institute, University of Oxford, Oxford, UK
- Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Kyle T S Pattinson
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
- Nuffield Division of Anaesthetics, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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Aucoin R, Lewthwaite H, Ekström M, von Leupoldt A, Jensen D. Impact of trigeminal nerve and/or olfactory nerve stimulation on activity of human brain regions involved in the perception of breathlessness. Respir Physiol Neurobiol 2023; 311:104036. [PMID: 36804472 DOI: 10.1016/j.resp.2023.104036] [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: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/17/2023]
Abstract
Breathlessness is a centrally processed symptom, as evidenced by activation of distinct brain regions such as the insular cortex and amygdala, during the anticipation and/or perception of breathlessness. Inhaled L-menthol or blowing cool air to the face/nose, both selective trigeminal nerve (TGN) stimulants, relieve breathlessness without concurrent improvements in physiological outcomes (e.g., breathing pattern), suggesting a possible but hitherto unexplored central mechanism of action. Four databases were searched to identify published reports supporting a link between TGN stimulation and activation of brain regions involved in the anticipation and/or perception of breathlessness. The collective results of the 29 studies demonstrated that TGN stimulation activated 12 brain regions widely implicated in the anticipation and/or perception of breathlessness, including the insular cortex and amygdala. Inhaled L-menthol or cool air to the face activated 75% and 33% of these 12 brain regions, respectively. Our findings support the hypothesis that TGN stimulation contributes to breathlessness relief by altering the activity of brain regions involved in its central neural processing.
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Affiliation(s)
- Rachelle Aucoin
- Clinical Exercise & Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, McGill University, 475 Pine Avenue West, Montréal, Quebec H2W 1S4, Canada.
| | - Hayley Lewthwaite
- College of Engineering, Science and Environment, School of Environment & Life Sciences, The University of Newcastle, 10 Chittaway Road, Ourimbah, NSW 2258, Australia
| | - Magnus Ekström
- Department of Respiratory Medicine, Allergology and Palliative Medicine, Institution for Clinical Sciences in Lund, Lund University, SE-221 00 Lund, Sweden
| | - Andreas von Leupoldt
- Health Psychology, University of Leuven, Tiensestraat 102 Box 3726, 3000 Leuven, Belgium
| | - Dennis Jensen
- Clinical Exercise & Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, McGill University, 475 Pine Avenue West, Montréal, Quebec H2W 1S4, Canada; Research Institute of the McGill University Health Centre, Translational Research in Respiratory Diseases Program and Respiratory Epidemiology and Clinical Research Unit, 2155 Guy Street Suite 500, Montréal, Quebec H3H 2R9, Canada
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Finnegan SL, Dearlove DJ, Morris P, Freeman D, Sergeant M, Taylor S, Pattinson KTS. Breathlessness in a virtual world: An experimental paradigm testing how discrepancy between VR visual gradients and pedal resistance during stationary cycling affects breathlessness perception. PLoS One 2023; 18:e0270721. [PMID: 37083693 PMCID: PMC10120935 DOI: 10.1371/journal.pone.0270721] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 03/09/2023] [Indexed: 04/22/2023] Open
Abstract
INTRODUCTION The sensation of breathlessness is often attributed to perturbations in cardio-pulmonary physiology, leading to changes in afferent signals. New evidence suggests that these signals are interpreted in the light of prior "expectations". A misalignment between afferent signals and expectations may underly unexplained breathlessness. Using a novel immersive virtual reality (VR) exercise paradigm, we investigated whether manipulating an individual's expectation of effort (determined by a virtual hill gradient) may alter their perception of breathlessness, independent from actual effort (the physical effort of cycling). METHODS Nineteen healthy volunteers completed a single experimental session where they exercised on a cycle ergometer while wearing a VR headset. We created an immersive virtual cycle ride where participants climbed up 100 m hills with virtual gradients of 4%, 6%, 8%, 10% and 12%. Each virtual hill gradient was completed twice: once with a 4% cycling ergometer resistance and once with a 6% resistance, allowing us to dissociate expected effort (virtual hill gradient) from actual effort (power). At the end of each hill, participants reported their perceived breathlessness. Linear mixed effects models were used to examine the independent contribution of actual effort and expected effort to ratings of breathlessness (0-10 scale). RESULTS Expectation of effort (effect estimate ± std. error, 0.63 ± 0.11, P < 0.001) and actual effort (0.81 ± 0.21, P < 0.001) independently explained subjective ratings of breathlessness, with comparable contributions of 19% and 18%, respectively. Additionally, we found that effort expectation accounted for 6% of participants' power and was a significant, independent predictor (0.09 ± 0.03; P = 0.001). CONCLUSIONS An individuals' expectation of effort is equally important for forming perceptions of breathlessness as the actual effort required to cycle. A new VR paradigm enables this to be experimentally studied and could be used to re-align breathlessness and enhance training programmes.
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Affiliation(s)
- Sarah L. Finnegan
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - David J. Dearlove
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
| | - Peter Morris
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Daniel Freeman
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Martin Sergeant
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Stephen Taylor
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Kyle T. S. Pattinson
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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Endrigue TC, Lunardi AC, Freitas PD, Silva RA, Mendes FAR, França-Pinto A, Carvalho-Pinto RM, Carvalho CRF. Characteristics of individuals with moderate to severe asthma who better respond to aerobic training: a cluster analysis. J Bras Pneumol 2023; 49:e20220225. [PMID: 36753210 PMCID: PMC9970378 DOI: 10.36416/1806-3756/e20220225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 10/31/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE To determine the characteristics of individuals with asthma who are responsive to aerobic training. METHODS This post hoc analysis of pooled data from previous randomized controlled trials involved 101 individuals with moderate to severe asthma who underwent aerobic training. Participants underwent a maximal cardiopulmonary exercise test and completed the Asthma Control Questionnaire and the Asthma Quality of Life Questionnaire before and after a 24-session aerobic training program. Better and worse responders to aerobic training were identified by cluster analysis. RESULTS Two clusters were identified according to the improvement in peak VO2 after aerobic training (better and worse responders). Characteristics of the better responder group were being older, being female, having higher BMI, and having higher cardiac reserve at baseline when compared with the worse responder group. Also, better responders had worse clinical control, worse quality of life, and lower physical capacity at baseline. After training, worse responders, in comparison with better responders, showed half the improvement in Δpeak VO2 (7.4% vs. 13.6%; 95% CI, -12.1 to -0.92%; p < 0.05) and worse asthma control. A weak, negative, but significant association (r = -0.35; p < 0.05) was observed between clinical control and aerobic fitness only in the better responder group. Both groups showed significant improvement in quality of life. CONCLUSIONS Obese individuals with worse exercise capacity, clinical control, and quality of life showed improvement with aerobic training. Moreover, worse responders also improved with training, but to a lesser extent.
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Affiliation(s)
- Tiago C Endrigue
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Adriana C Lunardi
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Patrícia D Freitas
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Ronaldo A Silva
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Felipe A R Mendes
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Andrezza França-Pinto
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Regina M Carvalho-Pinto
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Celso R F Carvalho
- . Departamento de Fisioterapia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
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Vardar-Yagli N, Saglam M, Dasgin H, Karli-Oguz K. The Effects of Respiratory Muscle Training on Resting-State Brain Activity and Thoracic Mobility in Healthy Subjects: A Randomized Controlled Trial. J Magn Reson Imaging 2023; 57:403-417. [PMID: 35762913 DOI: 10.1002/jmri.28322] [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: 04/13/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Although inspiratory muscle training (IMT) is an effective intervention for improving breath perception, brain mechanisms have not been studied yet. PURPOSE To examine the effects of IMT on insula and default mode network (DMN) using resting-state functional MRI (RS-fMRI). STUDY TYPE Prospective. POPULATION A total of 26 healthy participants were randomly assigned to two groups as IMT group (n = 14) and sham IMT groups (n = 12). FIELD STRENGTH/SEQUENCE A 3-T, three-dimensional T2* gradient-echo echo planar imaging sequence for RS-fMRI was obtained. ASSESSMENT The intervention group received IMT at 60% and sham group received at 15% of maximal inspiratory pressure (MIP) for 8 weeks. Pulmonary and respiratory muscle function, and breathing patterns were measured. Groups underwent RS-fMRI before and after the treatment. STATISTICAL TESTS Statistical tests were two-tailed P < 0.05 was considered statistically significant. Student's t test was used to compare the groups. One-sample t-test for each group was used to reveal pattern of functional connectivity. A statistical threshold of P < 0.001 uncorrected value was set at voxel level. We used False discovery rate (FDR)-corrected P < 0.05 cluster level. RESULTS The IMT group showed more prominent alterations in insula and DMN connectivity than sham group. The MIP was significantly different after IMT. Respiratory rate (P = 0.344), inspiratory time (P = 0.222), expiratory time (P = 1.000), and inspiratory time/total breath time (P = 0.572) of respiratory patterns showed no significant change after IMT. All DMN components showed decreased, while insula showed increased activation significantly. DATA CONCLUSION Differences in brain activity and connectivity may reflect improved ventilatory perception with IMT with a possible role in regulating breathing pattern by processing interoceptive signals. EVIDENCE LEVEL 2 TECHNICAL EFFICACY: Stage 4.
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Affiliation(s)
- Naciye Vardar-Yagli
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Ankara, Turkey
| | - Melda Saglam
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Ankara, Turkey
| | - Hacer Dasgin
- National Magnetic Resonance Research Center (UMRAM) Bilkent University, Ankara, Turkey
| | - Kader Karli-Oguz
- National Magnetic Resonance Research Center (UMRAM) Bilkent University, Ankara, Turkey.,Hacettepe University, Faculty of Medicine, Department of Radiology, Ankara, Turkey
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11
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Peng Z, Zhang HT, Wang G, Zhang J, Qian S, Zhao Y, Zhang R, Wang W. Cerebral neurovascular alterations in stable chronic obstructive pulmonary disease: a preliminary fMRI study. PeerJ 2022; 10:e14249. [PMID: 36405017 PMCID: PMC9671032 DOI: 10.7717/peerj.14249] [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: 03/23/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Purpose Cognitive impairment (CI) is very common in patients with chronic obstructive pulmonary disease (COPD). Cerebral structural and functional abnormalities have been reported in cognitively impaired patients with COPD, and the neurovascular coupling changes are rarely investigated. To address this issue, arterial spin labeling (ASL) and resting-state blood oxygenation level dependent (BOLD) fMRI techniques were used to determine whether any neurovascular changes in COPD patients. Methods Forty-five stable COPD patients and forty gender- and age-matched healthy controls were recruited. Furthermore, resting-state BOLD fMRI and ASL were acquired to calculate degree centrality (DC) and cerebral blood flow (CBF) respectively. The CBF-DC coupling and CBF/DC ratio were compared between the two groups. Results COPD patients showed abnormal CBF, DC and CBF/DC ratio in several regions. Moreover, lower CBF/DC ratio in the left lingual gyrus negatively correlated with naming scores, lower CBF/DC ratio in medial frontal cortex/temporal gyrus positively correlated with the Montreal Cognitive Assessment (MoCA), visuospatial/executive and delayed recall scores. Conclusion These findings may provide new potential insights into neuropathogenesis of cognition decline in stable COPD patients.
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Affiliation(s)
- Zhaohui Peng
- Department of Nuclear Medicine, Central Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China,Department of Medical Imaging, Changzheng Hospital, Shanghai, China
| | - Hong Tao Zhang
- Institute of Ophthalmology, Third Medical Center of PLA General Hospital, Beijing, China
| | - Gang Wang
- The Second Community Healthcare Service Center of Zhengzhou Road, Luoyang, Henan, China
| | - Juntao Zhang
- GE Healthcare, Precision Health Institution, Shanghai, China
| | - Shaowen Qian
- Department of Medical Imaging, Jinan Military General Hospital, Jinan, China
| | - Yajun Zhao
- Department of Medical Imaging, 71282 Hospital, Baoding, Hebei province, China
| | - Ruijie Zhang
- Department of Radiology, Qilu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong Province, China
| | - Wei Wang
- Department of Medical Imaging, Changzheng Hospital, Shanghai, China,Department of Medical Imaging, 71282 Hospital, Baoding, Hebei province, China
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12
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Chan PYS, Chang WP, Cheng CH, Liu CY, von Leupoldt A, Hsu AL, Wu CW. The impact of emotional context on neural substrates of respiratory sensory gating. Front Neurosci 2022; 16:1004271. [PMID: 36389230 PMCID: PMC9650924 DOI: 10.3389/fnins.2022.1004271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/21/2022] [Indexed: 12/04/2022] Open
Abstract
Psychological challenges have been found to impact respiratory symptom perception in healthy individuals as well as in patients with various neurological disorders. Human respiratory sensory gating is an objective measure to examine respiratory sensory information processing of repetitive respiratory mechanical stimuli in the central nervous system. With this electrophysiological method, patients with higher anxiety levels showed reduced respiratory sensory gating function in the cortex, and increased symptom perception. In addition, positive emotional contexts were found to increase the respiratory sensory gating function using RREPs. However, neural substrates related to emotional impacts on respiratory sensory gating remain still unclear. In the present study, we examined the emotion processing of respiratory sensory gating using functional magnetic resonance imaging. We hypothesized that positive compared with neutral stimuli would result in reduced brain activations in cortical areas with the paired occlusion paradigm. Thirty-five healthy adults participated in this event-designed fMRI experiment. Paired inspiratory occlusions (two transient occlusions with a 500 ms inter-stimulus-interval are delivered during one inspiration) were provided using an external trigger outside of the scanner. At least 40 paired inspiratory occlusions were collected for each trial. The experiment contained three runs during which participants underwent 12 min for the paired inspiratory occlusion paradigm while watching a fixation cross (the control condition), neutral and positive emotional picture series. The order of emotional picture series was randomized across the participants. Our results revealed an overall trend of reduction of brain activity from the neutral (minus fixation) condition, to the pleasant (minus fixation) condition. For bilateral thalamus and primary visual cortices, there was no significant difference in neural activation between the two contrasts of pleasant (ContrastP–F) and neutral condition (ContrastN–F). The activation of the mid-cingulate and the orbitofrontal cortex was lower in ContrastP–F compared to ContrastN–F. In conclusion, our results suggest that emotional context, especially positive valence, modulates neural correlates in middle cingulate cortex and orbitofrontal cortex in terms of respiratory sensory gating. Future studies are recommended to test emotional impacts on respiratory sensations in patients with neurological disorders.
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Affiliation(s)
- Pei-Ying S. Chan
- Department of Occupational Therapy, College of Medicine, and Healthy Ageing Research Center, Chang Gung University, Taoyuan, Taiwan
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Wen-Pin Chang
- Department of Occupational Therapy, Rocky Mountain University of Health Professions, Provo, UT, United States
| | - Chia-Hsiung Cheng
- Department of Occupational Therapy, College of Medicine, and Healthy Ageing Research Center, Chang Gung University, Taoyuan, Taiwan
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Laboratory of Brain Imaging and Neural Dynamics (BIND Lab), Chang Gung University, Taoyuan, Taiwan
| | - Chia-Yih Liu
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | | | - Ai-Ling Hsu
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Bachelor Program in Artificial Intelligence, Chang Gung University, Taoyuan, Taiwan
- *Correspondence: Ai-Ling Hsu,
| | - Changwei W. Wu
- Graduate Institute of Mind, Brain and Consciousness, Taipei Medical University, Taipei, Taiwan
- Brain and Consciousness Research Center, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Changwei W. Wu,
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13
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Betka S, Adler D, Similowski T, Blanke O. Breathing control, brain, and bodily self-consciousness: Toward immersive digiceuticals to alleviate respiratory suffering. Biol Psychol 2022; 171:108329. [PMID: 35452780 DOI: 10.1016/j.biopsycho.2022.108329] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 01/19/2023]
Abstract
Breathing is peculiar among autonomic functions through several characteristics. It generates a very rich afferent traffic from an array of structures belonging to the respiratory system to various areas of the brain. It is intimately associated with bodily movements. It bears particular relationships with consciousness as its efferent motor control can be automatic or voluntary. In this review within the scope of "respiratory neurophysiology" or "respiratory neuroscience", we describe the physiological organisation of breathing control. We then review findings linking breathing and bodily self-consciousness through respiratory manipulations using virtual reality (VR). After discussing the currently admitted neurophysiological model for dyspnea, as well as a new Bayesian model applied to breathing control, we propose that visuo-respiratory paradigms -as developed in cognitive neuroscience- will foster insights into some of the basic mechanisms of the human respiratory system and will also lead to the development of immersive VR-based digital health tools (i.e. digiceuticals).
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Affiliation(s)
- Sophie Betka
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, (EPFL), Geneva 1202, Switzerland.
| | - Dan Adler
- Division of Lung Diseases, University Hospital and Geneva Medical School, University of Geneva, Switzerland
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France; AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S (Respiration, Réanimation, Réhabilitation respiratoire, Sommeil), F-75013 Paris, France
| | - Olaf Blanke
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, (EPFL), Geneva 1202, Switzerland; Department of Clinical Neurosciences, University Hospital and Geneva Medical School, University of Geneva, Switzerland
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14
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Talks BJ, Campbell C, Larcombe SJ, Marlow L, Finnegan SL, Lewis CT, Lucas SJE, Harrison OK, Pattinson KTS. Baseline Psychological Traits Contribute to Lake Louise Acute Mountain Sickness Score at High Altitude. High Alt Med Biol 2022; 23:69-77. [PMID: 35353609 PMCID: PMC8982137 DOI: 10.1089/ham.2021.0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Talks, Benjamin James, Catherine Campbell, Stephanie J. Larcombe, Lucy Marlow, Sarah L. Finnegan, Christopher T. Lewis, Samuel J.E. Lucas, Olivia K. Harrison, and Kyle T.S. Pattinson. Baseline psychological traits contribute to Lake Louise Acute Mountain Sickness score at high altitude. High Alt Med Biol. 23:69-77, 2022. Background: Interoception refers to an individual's ability to sense their internal bodily sensations. Acute mountain sickness (AMS) is a common feature of ascent to high altitude that is only partially explained by measures of peripheral physiology. We hypothesized that interoceptive ability may explain the disconnect between measures of physiology and symptom experience in AMS. Methods: Two groups of 18 participants were recruited to complete a respiratory interoceptive task three times at 2-week intervals. The control group remained in Birmingham (140 m altitude) for all three tests. The altitude group completed test 1 in Birmingham, test 2 the day after arrival at 2,624 m, and test 3 at 2,728 m after an 11-day trek at high altitude (up to 4,800 m). Results: By measuring changes to metacognitive performance, we showed that acute ascent to altitude neither presented an interoceptive challenge, nor acted as interoceptive training. However, AMS symptom burden throughout the trek was found to relate to sea level measures of anxiety, agoraphobia, and neuroticism. Conclusions: This suggests that the Lake Louise AMS score is not solely a reflection of physiological changes on ascent to high altitude, despite often being used as such by researchers and commercial trekking companies alike.
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Affiliation(s)
- Benjamin James Talks
- Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, United Kingdom.,Birmingham Medical Research Expeditionary Society, Birmingham, United Kingdom
| | - Catherine Campbell
- Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | - Stephanie J Larcombe
- Birmingham Medical Research Expeditionary Society, Birmingham, United Kingdom.,Medical School, University of Birmingham, Birmingham, United Kingdom
| | - Lucy Marlow
- Warwick Medical School, Warwick University, Coventry, United Kingdom.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Sarah L Finnegan
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Christopher T Lewis
- Birmingham Medical Research Expeditionary Society, Birmingham, United Kingdom.,Department of Anesthesia, Ysbyty Gwynedd, Bangor, United Kingdom
| | - Samuel J E Lucas
- Birmingham Medical Research Expeditionary Society, Birmingham, United Kingdom.,School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Olivia K Harrison
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.,Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland.,School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Kyle T S Pattinson
- Birmingham Medical Research Expeditionary Society, Birmingham, United Kingdom.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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15
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Harrison OK, Hayen A, Wager TD, Pattinson KT. Investigating the specificity of the neurologic pain signature against breathlessness and finger opposition. Pain 2021; 162:2933-2944. [PMID: 33990110 PMCID: PMC8600542 DOI: 10.1097/j.pain.0000000000002327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Brain biomarkers of pain, including pain-predictive "signatures" based on brain activity, can provide measures of neurophysiological processes and potential targets for interventions. A central issue relates to the specificity of such measures, and understanding their current limits will both advance their development and explore potentially generalizable properties of pain to other states. Here, we used 2 data sets to test the neurologic pain signature (NPS), an established pain neuromarker. In study 1, brain activity was measured using high-field functional magnetic resonance imaging (7T fMRI, N = 40) during 5 to 25 seconds of experimental breathlessness (induced by inspiratory resistive loading), conditioned breathlessness anticipation, and finger opposition. In study 2, we assessed anticipation and breathlessness perception (3T, N = 19) under blinded saline (placebo) and remifentanil administration. The NPS responded to breathlessness, anticipation, and finger opposition, although no direct comparisons with painful events were possible. Local NPS patterns in anterior or midinsula, S2, and dorsal anterior cingulate responded to breathlessness and finger opposition and were reduced by remifentanil. Local NPS responses in the dorsal posterior insula did not respond to any manipulations. Therefore, significant global NPS activity alone is not specific for pain, and we offer insight into the overlap between NPS responses, breathlessness, and somatomotor demand.
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Affiliation(s)
- Olivia K. Harrison
- Translational Neuromodeling Unit, Institute of Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland
- School of Pharmacy, University of Otago, New Zealand
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
- Wellcome Centre for NeuroImaging, University of Oxford, Oxford, United Kingdom
| | - Anja Hayen
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
- Wellcome Centre for NeuroImaging, University of Oxford, Oxford, United Kingdom
- School of Psychology & Clinical Language Sciences, University of Reading, Reading, United Kingdom
| | - Tor D. Wager
- USA Department of Psychological and Brain Sciences, Dartmouth College, Hanover, United States.
| | - Kyle T.S. Pattinson
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
- Wellcome Centre for NeuroImaging, University of Oxford, Oxford, United Kingdom
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16
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Vafaee F, Shirzad S, Shamsi F, Boskabady MH. Neuroscience and treatment of asthma, new therapeutic strategies and future aspects. Life Sci 2021; 292:120175. [PMID: 34826435 DOI: 10.1016/j.lfs.2021.120175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/11/2021] [Accepted: 11/19/2021] [Indexed: 12/14/2022]
Abstract
AIMS Asthma is an airway inflammatory disease that is affected by neurological and psychological factors. The aim of present review is to investigating the relationship between neural functions and neurobiological changes and asthma symptoms. MAIN METHODS The information in this article is provided from articles published in English and reputable database using appropriate keywords from 1970 to October 2020. KEY FINDINGS The symptoms of asthma such as cough, difficult breathing, and mucus secretion get worse when a person is suffering from stress, anxiety, and depression. The function of the insula, anterior cingulate cortex, and hypothalamic-pituitary-adrenal axis changes in response to stress and psychological disease; then the stress hormones are produced from neuroendocrine system, which leads to asthma exacerbation. The evidence represents that psychological therapies or neurological rehabilitation reduces the inflammation through modulating the activity of neurocircuitry and the function of brain centers involved in asthma. Moreover, the neurotrophins and neuropeptides are the key mediators in the neuro-immune interactions, which secrete from the airway nerves in response to brain signals, and they could be the target of many new therapies in asthma. SIGNIFICANCE This review provides an insight into the vital role of the central and peripheral nervous system in development and exacerbation of asthma and provides practical approaches and strategies on neural networks to improve the airway inflammation and asthma severity.
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Affiliation(s)
- Farzaneh Vafaee
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Neuroscience, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shima Shirzad
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Neuroscience, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Shamsi
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Neuroscience Laboratory (Brain, Cognition and Behavior), Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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17
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Lewis A, Philip KEJ, Lound A, Cave P, Russell J, Hopkinson NS. The physiology of singing and implications for 'Singing for Lung Health' as a therapy for individuals with chronic obstructive pulmonary disease. BMJ Open Respir Res 2021; 8:8/1/e000996. [PMID: 34764199 PMCID: PMC8587358 DOI: 10.1136/bmjresp-2021-000996] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/20/2021] [Indexed: 11/09/2022] Open
Abstract
Singing is an increasingly popular activity for people with chronic obstructive pulmonary disease (COPD). Research to date suggests that ‘Singing for Lung Health’ may improve various health measures, including health-related quality-of-life. Singing and breathing are closely linked processes affecting one another. In this narrative review, we explore the physiological rationale for ‘Singing for Lung Health’ as an intervention, focusing on the abnormalities of pulmonary mechanics seen in COPD and how these might be impacted by singing. The potential beneficial physiological mechanisms outlined here require further in-depth evaluation.
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Affiliation(s)
- Adam Lewis
- Department of Health Sciences, Brunel University London, London, UK
| | | | - Adam Lound
- Patient Experience Research Centre, Imperial College London, London, UK
| | - Phoene Cave
- Department of Health Sciences, Brunel University London, London, UK
| | - Juliet Russell
- Department of Health Sciences, Brunel University London, London, UK
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18
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Vinckier F, Betka S, Nion N, Serresse L, Similowski T. Harnessing the power of anticipation to manage respiratory-related brain suffering and ensuing dyspnoea: insights from the neurobiology of the respiratory nocebo effect. Eur Respir J 2021; 58:58/3/2101876. [PMID: 34556533 DOI: 10.1183/13993003.01876-2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/09/2021] [Indexed: 12/29/2022]
Affiliation(s)
- Fabien Vinckier
- Université de Paris, Paris, France.,Dept of Psychiatry, Service Hospitalo-Universitaire, GHU Paris Psychiatry and Neurosciences, Paris, France
| | - Sophie Betka
- Laboratory of Cognitive Neuroscience, Brain Mind Institute and Center for Neuroprosthetics, Faculty of Life Sciences, Swiss Federal Institute of Technology (EPFL), Geneva, Switzerland
| | - Nathalie Nion
- Neurophysiologie Respiratoire Expérimentale et Clinique, INSERM, UMRS1158, Sorbonne Université, Paris, France.,Département R3S (Respiration, Réanimation, Réhabilitation respiratoire, Sommeil), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Laure Serresse
- Neurophysiologie Respiratoire Expérimentale et Clinique, INSERM, UMRS1158, Sorbonne Université, Paris, France.,Equipe mobile de soins palliatifs, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Thomas Similowski
- Neurophysiologie Respiratoire Expérimentale et Clinique, INSERM, UMRS1158, Sorbonne Université, Paris, France .,Département R3S (Respiration, Réanimation, Réhabilitation respiratoire, Sommeil), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
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19
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Pettersson H, Alexanderson H, Poole JL, Varga J, Regardt M, Russell AM, Salam Y, Jensen K, Mansour J, Frech T, Feghali-Bostwick C, Varjú C, Baldwin N, Heenan M, Fligelstone K, Holmner M, Lammi MR, Scholand MB, Shapiro L, Volkmann ER, Saketkoo LA. Exercise as a multi-modal disease-modifying medicine in systemic sclerosis: An introduction by The Global Fellowship on Rehabilitation and Exercise in Systemic Sclerosis (G-FoRSS). Best Pract Res Clin Rheumatol 2021; 35:101695. [PMID: 34217607 PMCID: PMC8478716 DOI: 10.1016/j.berh.2021.101695] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Systemic sclerosis (SSc) is a heterogeneous multisystem autoimmune disease whereby its main pathological drivers of disability and damage are vascular injury, inflammatory cell infiltration, and fibrosis. These mechanisms result in diffuse and diverse impairments arising from ischemic circulatory dysfunction leading to painful skin ulceration and calcinosis, neurovascular aberrations hindering gastrointestinal (GI) motility, progressive painful, incapacitating or immobilizing effects of inflammatory and fibrotic effects on the lungs, skin, articular and periarticular structures, and muscle. SSc-related impairments impede routine activities of daily living (ADLs) and disrupt three critical life areas: work, family, social/leisure, and also impact on psychological well-being. Physical activity and exercise are globally recommended; however, for connective tissue diseases, this guidance carries greater impact on inflammatory disease manifestations, recovery, and cardiovascular health. Exercise, through myogenic and vascular phenomena, naturally targets key pathogenic drivers by downregulating multiple inflammatory and fibrotic pathways in serum and tissue, while increasing circulation and vascular repair. G-FoRSS, The Global Fellowship on Rehabilitation and Exercise in Systemic Sclerosis recognizes the scientific basis of and advocates for education and research of exercise as a systemic and targeted SSc disease-modifying treatment. An overview of biophysiological mechanisms of physical activity and exercise are herein imparted for patients, clinicians, and researchers, and applied to SSc disease mechanisms, manifestations, and impairment. A preliminary guidance on exercise in SSc, a research agenda, and the current state of research and outcome measures are set forth.
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Affiliation(s)
- Henrik Pettersson
- Women's Health and Allied Health Professionals, Medical Unit Occupational Therapy and Physiotherapy, Karolinska University Hospital, Stockholm, Sweden; Division of Rheumatology, Department of Medicin, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Helene Alexanderson
- Women's Health and Allied Health Professionals, Medical Unit Occupational Therapy and Physiotherapy, Karolinska University Hospital, Stockholm, Sweden; Division of Rheumatology, Department of Medicin, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Janet L Poole
- Occupational Therapy Graduate Program, University of New Mexico, Albuquerque, NM, USA
| | - Janos Varga
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Malin Regardt
- Women's Health and Allied Health Professionals, Medical Unit Occupational Therapy and Physiotherapy, Karolinska University Hospital, Stockholm, Sweden; Department of Occupational Therapy, Karolinska Institutet, Stockholm, Sweden
| | - Anne-Marie Russell
- University of Exeter, College of Medicine and Health, Exeter, UK; National Institute of Health Research, Senior Nurse Research Leader, London, UK
| | - Yasser Salam
- Department of Physical Therapy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Kelly Jensen
- Oregon Health and Science University, Portland, OR, USA; New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, USA; Tulane University School of Medicine, New Orleans, USA
| | - Jennifer Mansour
- New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, USA; Tulane University School of Medicine, New Orleans, USA
| | - Tracy Frech
- Vanderbilt University, Division of Rheumatology, Nashville, TN, USA
| | | | - Cecília Varjú
- Department of Rheumatology and Immunology, University of Pécs Clinical Center, Pecs, Hungary
| | | | - Matty Heenan
- Scleroderma Foundation/Pulmonary Hypertension Association, Tucson, AZ, USA
| | - Kim Fligelstone
- Scleroderma & Raynaud Society UK (SRUK), London, UK; Royal Free Hospital, London, UK
| | - Monica Holmner
- The Swedish Rheumatism Association National Association for Systemic Sclerosis, Sweden
| | - Matthew R Lammi
- New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, USA; University Medical Center - Comprehensive Pulmonary Hypertension Center and Interstitial Lung Disease Clinic Programs, New Orleans, USA; Louisiana State University School of Medicine, Section of Pulmonary Medicine, New Orleans, USA
| | - Mary Beth Scholand
- University of Utah, Division of Pulmonary Medicine, Pulmonary Fibrosis Center, Salt Lake City, UT, USA
| | - Lee Shapiro
- Division of Rheumatology, Albany Medical Center, Albany, NY, USA; Steffens Scleroderma Foundation, Albany, NY, USA
| | - Elizabeth R Volkmann
- University of California, David Geffen School of Medicine, UCLA Scleroderma Program and UCLA CTD-ILD Program, Division of Rheumatology, Department of Medicine, Los Angeles, CA, USA
| | - Lesley Ann Saketkoo
- New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, USA; Tulane University School of Medicine, New Orleans, USA; University Medical Center - Comprehensive Pulmonary Hypertension Center and Interstitial Lung Disease Clinic Programs, New Orleans, USA; Louisiana State University School of Medicine, Section of Pulmonary Medicine, New Orleans, USA.
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20
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Moy ML, Daniel RA, Cruz Rivera PN, Mongiardo MA, Goldstein RL, Higgins DM, Salat DH. Co-occurrence of pain and dyspnea in Veterans with COPD: Relationship to functional status and a pilot study of neural correlates using structural and functional magnetic resonance imaging. PLoS One 2021; 16:e0254653. [PMID: 34265003 PMCID: PMC8282042 DOI: 10.1371/journal.pone.0254653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/23/2021] [Indexed: 11/18/2022] Open
Abstract
Persons with COPD experience co-occurring dyspnea and pain. Little is known about the relationship between symptom co-occurrence with physical activity (PA) and exercise. Novel diagnostic tools are needed for accurate symptom discrimination. In this secondary analysis, we examined relationships between baseline assessments of pain, dyspnea, objectively measured PA, and exercise capacity in persons with COPD who previously enrolled in three PA studies. Pain was assessed with the bodily pain domain of the Veterans RAND-36 (VR-36), and dyspnea with the modified Medical Research Council (mMRC) scale. Average daily step count was assessed with the Omron HJ-720ITC or FitBit Zip pedometer, and exercise capacity with 6-minute walk test (6MWT). We also conducted a pilot neuroimaging study. Neuroimaging data were acquired on a Siemens 3-Tesla Magnetom Prismafit whole-body scanner. Analysis of variance assessed trends in daily step count and 6MWT distance across categories of co-occurring pain and dyspnea. General linear models examined relationships between cortical thickness and resting state functional connectivity (fc) with symptoms and functional status. In 373 Veterans, 98% were male with mean age 70.5± 8.3 years and FEV1% predicted 59 ± 21%. Compared to those with no co-occurrence of pain and dyspnea, those with co-occurrence walked 1,291–1,444 fewer steps per day and had an 80–85 m lower 6MWT distance. Ten males participated in the pilot neuroimaging study. Predominant findings were that lower cortical thickness and greater fc were associated with higher pain and dyspnea, p<0.05. Greater cortical thickness and lower fc were associated with higher daily step count and 6MWT distance, p<0.05. Regional patterns of associations differed for pain and dyspnea, suggesting that cortical thickness and fc may discriminate symptoms. Co-occurring dyspnea and pain in COPD are associated with significant reductions in PA and exercise capacity. It may be feasible for neuroimaging markers to discriminate between pain and dyspnea.
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Affiliation(s)
- Marilyn L. Moy
- Pulmonary, Critical Care, and Sleep Medicine Service, VA Boston Healthcare System, Boston, MA, United States of America
- Harvard Medical School, Boston, MA, United States of America
- * E-mail:
| | - Rinu A. Daniel
- Boston University School of Medicine, Boston, MA, United States of America
| | - Paola N. Cruz Rivera
- Pulmonary, Critical Care, and Sleep Medicine Service, VA Boston Healthcare System, Boston, MA, United States of America
| | - Maria A. Mongiardo
- Pulmonary, Critical Care, and Sleep Medicine Service, VA Boston Healthcare System, Boston, MA, United States of America
| | - Rebekah L. Goldstein
- Pulmonary, Critical Care, and Sleep Medicine Service, VA Boston Healthcare System, Boston, MA, United States of America
| | - Diana M. Higgins
- Boston University School of Medicine, Boston, MA, United States of America
- Anesthesiology, Critical Care, and Pain Medicine Service, VA Boston Healthcare System, Boston, MA, United States of America
| | - David H. Salat
- Harvard Medical School, Boston, MA, United States of America
- Neuroimaging Research for Veterans Center, VA Boston Healthcare System, Boston, MA, United States of America
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, United States of America
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21
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Saketkoo LA, Russell AM, Jensen K, Mandizha J, Tavee J, Newton J, Rivera F, Howie M, Reese R, Goodman M, Hart P, Strookappe B, De Vries J, Rosenbach M, Scholand MB, Lammi MR, Elfferich M, Lower E, Baughman RP, Sweiss N, Judson MA, Drent M. Health-Related Quality of Life (HRQoL) in Sarcoidosis: Diagnosis, Management, and Health Outcomes. Diagnostics (Basel) 2021; 11:1089. [PMID: 34203584 PMCID: PMC8232334 DOI: 10.3390/diagnostics11061089] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/30/2021] [Accepted: 06/02/2021] [Indexed: 02/06/2023] Open
Abstract
Health-related quality of life (HRQoL), though rarely considered as a primary endpoint in clinical trials, may be the single outcome reflective of patient priorities when living with a health condition. HRQoL is a multi-dimensional concept that reflects the degree to which a health condition interferes with participation in and fulfillment of important life areas. HRQoL is intended to capture the composite degree of physical, physiologic, psychological, and social impairment resulting from symptom burden, patient-perceived disease severity, and treatment side effects. Diminished HRQoL expectedly correlates to worsening disability and death; but interventions addressing HRQoL are linked to increased survival. Sarcoidosis, being a multi-organ system disease, is associated with a diffuse array of manifestations resulting in multiple symptoms, complications, and medication-related side effects that are linked to reduced HRQoL. Diminished HRQoL in sarcoidosis is related to decreased physical function, pain, significant loss of income, absence from work, and strain on personal relationships. Symptom distress can result clearly from a sarcoidosis manifestation (e.g., ocular pain, breathlessness, cough) but may also be non-specific, such as pain or fatigue. More complex, a single non-specific symptom, e.g., fatigue may be directly sarcoidosis-derived (e.g., inflammatory state, neurologic, hormonal, cardiopulmonary), medication-related (e.g., anemia, sleeplessness, weight gain, sub-clinical infection), or an indirect complication (e.g., sleep apnea, physical deconditioning, depression). Identifying and distinguishing underlying causes of impaired HRQoL provides opportunity for treatment strategies that can greatly impact a patient's function, well-being, and disease outcomes. Herein, we present a reference manual that describes the current state of knowledge in sarcoidosis-related HRQoL and distinguish between diverse causes of symptom distress and other influences on sarcoidosis-related HRQoL. We provide tools to assess, investigate, and diagnose compromised HRQoL and its influencers. Strategies to address modifiable HRQoL factors through palliation of symptoms and methods to improve the sarcoidosis health profile are outlined; as well as a proposed research agenda in sarcoidosis-related HRQoL.
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Affiliation(s)
- Lesley Ann Saketkoo
- New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, LA 70112, USA; (K.J.); (M.R.L.)
- Comprehensive Pulmonary Hypertension Center and Interstitial Lung Disease Clinic Programs, University Medical Center, New Orleans, LA 70112, USA
- Section of Pulmonary Medicine, Louisiana State University School of Medicine, New Orleans, LA 70112, USA
- Tulane University School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Anne-Marie Russell
- College of Medicine and Health, University of Exeter, Devon EX1 2LU, UK
- Imperial College Healthcare NHS Foundation Trust, London W2 1NY, UK
| | - Kelly Jensen
- New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, LA 70112, USA; (K.J.); (M.R.L.)
- Tulane University School of Medicine, Tulane University, New Orleans, LA 70112, USA
- Department of Internal Medicine, Oregon Health and Science University, Portland, OR 97239, USA
| | - Jessica Mandizha
- Respiratory Medicine, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter EX2 5DW, UK;
| | - Jinny Tavee
- Department of Neurology, National Jewish Health, Denver, CO 80206, USA;
| | - Jacqui Newton
- Sarcoidosis UK, China Works, Black Prince Road, London SE1 7SJ, UK; (J.N.); (M.H.)
| | - Frank Rivera
- Foundation for Sarcoidosis Research, Chicago, IL 60614, USA; (F.R.); (R.R.)
- National Sarcoidosis Support Group, Stronger than Sarcoidosis, New York, NY 11727, USA
| | - Mike Howie
- Sarcoidosis UK, China Works, Black Prince Road, London SE1 7SJ, UK; (J.N.); (M.H.)
- CGI UK, Space Defense & Intelligence (Cyber Security Operations), London EC3M 3BY, UK
| | - Rodney Reese
- Foundation for Sarcoidosis Research, Chicago, IL 60614, USA; (F.R.); (R.R.)
- National Sarcoidosis Support Group, Stronger than Sarcoidosis, New York, NY 11727, USA
- Sarcoidosis Awareness Foundation of Louisiana, Baton Rouge, LA 70812, USA
| | - Melanie Goodman
- New Orleans Sarcoidosis Support Group, New Orleans, LA 70112, USA;
| | - Patricia Hart
- iHart Wellness Holistic Approach to Sarcoidosis Certified Health & Wellness Coach, International Association of Professionals, New York, NY 11727, USA;
| | - Bert Strookappe
- Department of Physiotherapy, Gelderse Vallei Hospital, 10, 6716 RP Ede, The Netherlands; (B.S.); (M.E.)
- ildcare Foundation Research Team, 6711 NR Ede, The Netherlands; (M.D.)
| | - Jolanda De Vries
- Admiraal de Ruyter Hospital (Adrz), 114, 4462 RA Goes, The Netherlands;
- Department of Medical and Clinical Psychology, Tilburg University, 5037 AB Tilburg, The Netherlands
| | - Misha Rosenbach
- Cutaneous Sarcoidosis Clinic, Department of Dermatology, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Mary Beth Scholand
- Division of Pulmonary Medicine, Interstitial Lung Disease Center, University of Utah, Salt Lake City, UT 84132, USA;
| | - Mathew R. Lammi
- New Orleans Scleroderma and Sarcoidosis Patient Care and Research Center, New Orleans, LA 70112, USA; (K.J.); (M.R.L.)
- Comprehensive Pulmonary Hypertension Center and Interstitial Lung Disease Clinic Programs, University Medical Center, New Orleans, LA 70112, USA
- Section of Pulmonary Medicine, Louisiana State University School of Medicine, New Orleans, LA 70112, USA
| | - Marjon Elfferich
- Department of Physiotherapy, Gelderse Vallei Hospital, 10, 6716 RP Ede, The Netherlands; (B.S.); (M.E.)
- ildcare Foundation Research Team, 6711 NR Ede, The Netherlands; (M.D.)
| | - Elyse Lower
- Department of Medicine, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA; (E.L.); (R.P.B.)
| | - Robert P. Baughman
- Department of Medicine, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA; (E.L.); (R.P.B.)
| | - Nadera Sweiss
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Marc A. Judson
- Division of Pulmonary Medicine and Critical Care, Albany Medical College, Albany, NY 12208, USA;
| | - Marjolein Drent
- ildcare Foundation Research Team, 6711 NR Ede, The Netherlands; (M.D.)
- Interstitial Lung Diseases (ILD) Center of Excellence, Department of Pulmonology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM Nieuwegein, The Netherlands
- Department of Pharmacology and Toxicology, Faculty of Health and Life Sciences, Maastricht University, 40, 6229 ER Maastricht, The Netherlands
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22
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Lewthwaite H, Jensen D, Ekström M. How to Assess Breathlessness in Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2021; 16:1581-1598. [PMID: 34113091 PMCID: PMC8184148 DOI: 10.2147/copd.s277523] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/09/2021] [Indexed: 12/17/2022] Open
Abstract
Activity-related breathlessness is the most problematic symptom of chronic obstructive pulmonary disease (COPD), arising from complex interactions between peripheral pathophysiology (both pulmonary and non-pulmonary) and central perceptual processing. To capture information on the breathlessness experienced by people with COPD, many different instruments exist, which vary in applicability depending on the purpose and context of assessment. We reviewed common breathlessness assessment instruments, providing recommendations around how to assess the severity of, or change in, breathlessness in people with COPD in daily life or in response to exercise provocation. A summary of 14 instruments for the assessment of breathlessness severity in daily life is presented, with 11/14 (79%) instruments having established minimal clinically importance differences (MCIDs) to assess and interpret breathlessness change. Instruments varied in their scope of assessment (functional impact of breathlessness or the severity of breathlessness during different activities, focal periods, or alongside other common COPD symptoms), dimensions of breathlessness assessed (uni-/multidimensional), rating scale properties and intended method of administration (self-administered versus interviewer led). Assessing breathlessness in response to an acute exercise provocation overcomes some limitations of daily life assessment, such as recall bias and lack of standardized exertional stimulus. To assess the severity of breathlessness in response to an acute exercise provocation, unidimensional or multidimensional instruments are available. Borg's 0-10 category rating scale is the most widely used instrument and has estimates for a MCID during exercise. When assessing the severity of breathlessness during exercise, measures should be taken at a standardized submaximal point, whether during laboratory-based tests like cardiopulmonary exercise testing or field-based tests, such as the 3-min constant rate stair stepping or shuttle walking tests. Recommendations are provided around which instruments to use for breathlessness assessment in daily life and in relation to exertion in people with COPD.
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Affiliation(s)
- Hayley Lewthwaite
- School of Environmental & Life Sciences, College of Engineering, Science and Environment, University of Newcastle, Ourimbah, Australia
- UniSA: Allied Health and Human Performance, Innovation, Implementation and Clinical Translation in Health, University of South Australia, Adelaide, Australia
| | - Dennis Jensen
- Department of Kinesiology and Physical Education, McGill University, Montréal, Québec, Canada
- Research Institute of the McGill University Health Centre, Faculty of Medicine, McGill University, Montréal, Québec, Canada
- Research Centre for Physical Activity and Health, Faculty of Education, McGill University, Montréal, Canada
| | - Magnus Ekström
- Faculty of Medicine, Department of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund University, Lund, Sweden
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23
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Goddard T, Sonnappa S. The role of cardiopulmonary exercise testing in evaluating children with exercise induced dyspnoea. Paediatr Respir Rev 2021; 38:24-32. [PMID: 32980274 DOI: 10.1016/j.prrv.2020.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 11/29/2022]
Abstract
Exercise induced dyspnoea (EID) is a common manifestation in children and adolescents. Although EID is commonly attributed to exercise induced bronchoconstriction, several conditions other than asthma can cause EID in otherwise healthy children and adolescents. Cardiopulmonary exercise testing (CPET) offers a non-invasive comprehensive assessment of the cardiovascular, ventilatory and metabolic responses to exercise and is a powerful diagnostic and prognostic tool. CPET is a reproducible, non-invasive form of testing that allows for comparison against age- and gender-specific norms. CPET can assess the child's exercise capacity, determine the limiting factors associated with this, and be used to prescribe individualised interventions. EID can occur due to asthma, exercise induced laryngeal obstruction, breathing pattern disorders, chest wall restriction and cardiovascular pathology among other causes. Differentiating between these varied causes is important if effective therapy is to be initiated and quality of life improved in subjects with EID.
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Affiliation(s)
- T Goddard
- Royal Brompton Hospital, Paediatric Respiratory Medicine, London, UK; The University of Adelaide, Adelaide, Australia
| | - S Sonnappa
- Royal Brompton Hospital, Paediatric Respiratory Medicine, London, UK; National Heart and Lung Institute, Imperial College, UK.
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24
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Jelinčić V, Van Diest I, Torta DM, von Leupoldt A. The breathing brain: The potential of neural oscillations for the understanding of respiratory perception in health and disease. Psychophysiology 2021; 59:e13844. [PMID: 34009644 DOI: 10.1111/psyp.13844] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 11/30/2022]
Abstract
Dyspnea or breathlessness is a symptom occurring in multiple acute and chronic illnesses, however, the understanding of the neural mechanisms underlying its subjective experience is limited. In this topical review, we propose neural oscillatory dynamics and cross-frequency coupling as viable candidates for a neural mechanism underlying respiratory perception, and a technique warranting more attention in respiration research. With the evidence for the potential of neural oscillations in the study of normal and disordered breathing coming from disparate research fields with a limited history of interdisciplinary collaboration, the main objective of the review was to converge the existing research and suggest future directions. The existing findings show that distinct limbic and cortical activations, as measured by hemodynamic responses, underlie dyspnea, however, the time-scale of these activations is not well understood. The recent findings of oscillatory neural activity coupled with the respiratory rhythm could provide the solution to this problem, however, more research with a focus on dyspnea is needed. We also touch on the findings of distinct spectral patterns underlying the changes in breathing due to experimental manipulations, meditation and disease. Subsequently, we suggest general research directions and specific research designs to supplement the current knowledge using neural oscillation techniques. We argue for the benefits of interdisciplinary collaboration and the converging of neuroimaging and behavioral methods to best explain the emergence of the subjective and aversive individual experience of dyspnea.
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Affiliation(s)
- Valentina Jelinčić
- Research Group Health Psychology, Department of Psychology, KU Leuven, Leuven, Belgium
| | - Ilse Van Diest
- Research Group Health Psychology, Department of Psychology, KU Leuven, Leuven, Belgium
| | - Diana M Torta
- Research Group Health Psychology, Department of Psychology, KU Leuven, Leuven, Belgium
| | - Andreas von Leupoldt
- Research Group Health Psychology, Department of Psychology, KU Leuven, Leuven, Belgium
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25
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Finnegan SL, Harrison OK, Harmer CJ, Herigstad M, Rahman NM, Reinecke A, Pattinson KTS. Breathlessness in COPD: linking symptom clusters with brain activity. Eur Respir J 2021; 58:13993003.04099-2020. [PMID: 33875493 PMCID: PMC8607925 DOI: 10.1183/13993003.04099-2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 04/04/2021] [Indexed: 11/11/2022]
Abstract
Background Current models of breathlessness often fail to explain disparities between patients' experiences of breathlessness and objective measures of lung function. While a mechanistic understanding of this discordance has thus far remained elusive, factors such as mood, attention and expectation have all been implicated as important modulators of breathlessness. Therefore, we have developed a model to better understand the relationships between these factors using unsupervised machine learning techniques. Subsequently we examined how expectation-related brain activity differed between these symptom-defined clusters of participants. Methods A cohort of 91 participants with mild-to-moderate chronic obstructive pulmonary disease (COPD) underwent functional brain imaging, self-report questionnaires and clinical measures of respiratory function. Unsupervised machine learning techniques of exploratory factor analysis and hierarchical cluster modelling were used to model brain–behaviour–breathlessness links. Results We successfully stratified participants across four key factors corresponding to mood, symptom burden and two capability measures. Two key groups resulted from this stratification, corresponding to high and low symptom burden. Compared with the high symptom burden group, the low symptom burden group demonstrated significantly greater brain activity within the anterior insula, a key region thought to be involved in monitoring internal bodily sensations (interoception). Conclusions This is the largest functional neuroimaging study of COPD to date, and is the first to provide a clear model linking brain, behaviour and breathlessness expectation. Furthermore, it was possible to stratify participants into groups, which then revealed differences in brain activity patterns. Together, these findings highlight the value of multimodal models of breathlessness in identifying behavioural phenotypes and for advancing understanding of differences in breathlessness burden. Towards individualised treatments for chronic breathlessness with functional neuroimaging: revealing the factors underlying the breathlessness experience in COPDhttps://bit.ly/3a8fXPt
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Affiliation(s)
- Sarah L Finnegan
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Olivia K Harrison
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.,Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland.,School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Catherine J Harmer
- Department of Psychiatry, Medical Sciences, University of Oxford, Oxford, UK.,Oxford Health NHS foundation Trust, Warneford Hospital, Oxford, UK
| | - Mari Herigstad
- Department of Biosciences and Chemistry, Sheffield Hallam University, Sheffield, UK
| | - Najib M Rahman
- Nuffield Department of Medicine, University of Oxford, Oxford, UK.,NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Andrea Reinecke
- School of Pharmacy, University of Otago, Dunedin, New Zealand.,Department of Psychiatry, Medical Sciences, University of Oxford, Oxford, UK.,Oxford Health NHS foundation Trust, Warneford Hospital, Oxford, UK
| | - Kyle T S Pattinson
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
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26
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von Leupoldt A, Ashoori M, Jelinčić V, Herzog M, Van Diest I. The impact of unpredictability of dyspnea offset on dyspnea perception, fear, and respiratory neural gating. Psychophysiology 2021; 58:e13807. [PMID: 33682134 DOI: 10.1111/psyp.13807] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/25/2023]
Abstract
Dyspnea is a debilitating and threatening symptom in various diseases. Affected patients often report the unpredictability of dyspnea episodes being particularly anxiety-provoking and amplifying the perception of dyspnea. Experimental studies testing dyspnea unpredictability together with related neural processes, physiological fear responses, and dyspnea-related personality traits are sparse. Therefore, we investigated the impact of unpredictability of dyspnea offset on dyspnea perception and fear ratings, respiratory neural gating and physiological fear indices, as well as the influence of interindividual differences in fear of suffocation (FoS). Forty healthy participants underwent a task manipulating the offset predictability of resistive load-induced dyspnea including one unloaded safety condition. Respiratory variables, self-reports of dyspnea intensity, dyspnea unpleasantness, and fear were recorded. Moreover, respiratory neural gating was measured in a paired inspiratory occlusion paradigm using electroencephalography, while electrodermal activity, startle eyeblink, and startle probe N100 were assessed as physiological fear indices. Participants reported higher dyspnea unpleasantness and fear when dyspnea offset was unpredictable compared to being predictable. Individuals with high levels of FoS showed the greatest increase in fear and overall higher levels of fear and physiological arousal across all conditions. Respiratory neural gating, startle eyeblink, and startle probe N100 showed general reductions during dyspnea conditions but no difference between unpredictable and predictable dyspnea conditions. Together, the current results suggest that the unpredictable offset of dyspnea amplifies dyspnea perception and fear, especially in individuals with high levels of FoS. These effects were unrelated to respiratory neural gating or physiological fear responses, requiring future studies on underlying mechanisms.
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Affiliation(s)
| | - Minoo Ashoori
- Research Group Health Psychology, University of Leuven, Leuven, Belgium
| | | | - Michaela Herzog
- Research Group Health Psychology, University of Leuven, Leuven, Belgium
| | - Ilse Van Diest
- Research Group Health Psychology, University of Leuven, Leuven, Belgium
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27
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Multidimensional breathlessness response to exercise: Impact of COPD and healthy ageing. Respir Physiol Neurobiol 2021; 287:103619. [PMID: 33497795 DOI: 10.1016/j.resp.2021.103619] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/10/2021] [Accepted: 01/19/2021] [Indexed: 02/06/2023]
Abstract
This study compared the multidimensional breathlessness response to incremental cardiopulmonary cycle exercise testing (CPET) in people with chronic obstructive pulmonary disease (COPD; n = 14, aged 69 ± 9 years, forced expiratory volume in 1-sec = 54 ± 16 % predicted) and healthy older (OA) (n = 35, aged 68 ± 5 years) and younger (YA) (n = 19, aged 28 ± 8 years) adults. Participants performed CPET and successively rated overall breathlessness intensity, unsatisfied inspiration, breathing too shallow, work/effort of breathing, and breathlessness-related unpleasantness, fear, and anxiety using the 0-10 Borg scale. At any given percent predicted peak minute ventilation, people with COPD rated all breathlessness sensations higher than OA and YAs, who were similar. Most between group differences disappeared when examined in relation to inspiratory reserve volume, except people with COPD reported higher levels of unsatisfied inspiration and breathing too shallow (vs YA), and breathlessness-related fear and anxiety (vs OA and YAs). Multidimensional ratings of breathlessness sensations during CPET provides further insight into differences in exertional symptom perceptions among people with COPD and without COPD.
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28
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Higginson IJ, Reilly CC, Maddocks M. Breathlessness. Respir Med 2021. [DOI: 10.1007/978-3-030-81788-6_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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Machado A, Marques A, Burtin C. Extra-pulmonary manifestations of COPD and the role of pulmonary rehabilitation: a symptom-centered approach. Expert Rev Respir Med 2020; 15:131-142. [PMID: 33225762 DOI: 10.1080/17476348.2021.1854737] [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: 01/12/2023]
Abstract
Introduction: Chronic obstructive pulmonary disease (COPD) is a complex and heterogenous disease that is associated with a range of respiratory and non-respiratory symptoms, which highly contribute to the daily burden of the disease. Symptoms burden remains high despite optimal bronchodilator therapy, but pulmonary rehabilitation (PR) is an effective intervention to improve patients' symptoms. A comprehensive interdisciplinary approach within the framework of a PR program is warranted to tackle these complex symptoms and their consequences. Areas covered: This narrative review describes how symptoms of dyspnea, fatigue, cough, sputum, anxiety, depression, pain, sleep disturbances, and cognitive decline arise in COPD and can contribute to several non-pulmonary manifestations of the disease. It also describes evidence of the effectiveness of interdisciplinary PR programs to counteract these symptoms. A literature search was performed on PubMed and Scopus between June and July 2020. Expert opinion: Respiratory and non-respiratory symptoms are highly prevalent, often not comprehensively assessed, and result in several extra-pulmonary manifestations of the disease (physical, emotional and social). Interdisciplinary PR programs can improve these negative manifestations through different pathways, contributing for an effective symptoms' management. A thorough assessment of symptoms (beyond dyspnea) should be routinely performed and may support the identification of treatable traits, allowing the tailoring of PR interventions and assessment of their real-life impact.
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Affiliation(s)
- Ana Machado
- Respiratory Research and Rehabilitation Laboratory (Lab 3R), School of Health Sciences (ESSUA), University of Aveiro , Aveiro, Portugal.,Institute of Biomedicine (Ibimed), University of Aveiro , Aveiro, Portugal
| | - Alda Marques
- Respiratory Research and Rehabilitation Laboratory (Lab 3R), School of Health Sciences (ESSUA), University of Aveiro , Aveiro, Portugal.,Institute of Biomedicine (Ibimed), University of Aveiro , Aveiro, Portugal
| | - Chris Burtin
- REVAL - Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University , Diepenbeek, Belgium.,BIOMED - Biomedical Research Institute, Hasselt University , Diepenbeek, Belgium
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30
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Abstract
Blood oxygen level dependent (BOLD) fMRI is a common technique for measuring brain activation that could be affected by low-level carbon monoxide (CO) exposure from, e.g. smoking. This study aimed to probe the vulnerability of BOLD fMRI to CO and determine whether it may constitute a significant neuroimaging confound. Low-level (6 ppm exhaled) CO effects on BOLD response were assessed in 12 healthy never-smokers on two separate experimental days (CO and air control). fMRI tasks were breath-holds (hypercapnia), visual stimulation and fingertapping. BOLD fMRI response was lower during breath holds, visual stimulation and fingertapping in the CO protocol compared to the air control protocol. Behavioural and physiological measures remained unchanged. We conclude that BOLD fMRI might be vulnerable to changes in baseline CO, and suggest exercising caution when imaging populations exposed to elevated CO levels. Further work is required to fully elucidate the impact on CO on fMRI and its underlying mechanisms.
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Affiliation(s)
- Caroline Bendell
- Biological and Medical Sciences, Oxford Brookes University, Oxford, UK
| | - Shakeeb H Moosavi
- Biological and Medical Sciences, Oxford Brookes University, Oxford, UK
| | - Mari Herigstad
- Biomolecular Sciences Research Centre, Department of Biosciences and Chemistry, Sheffield Hallam University, Sheffield, UK
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31
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Abstract
PURPOSE OF REVIEW Exertional breathlessness is common and pervasive across various chronic disease populations. To accurately assess response to intervention and optimize clinical (symptom) management, detailed assessment of exertional breathlessness is imperative. This review provides an update on current approaches to assess exertional breathlessness and presents the need for individualized assessment of breathlessness standardized for the level of exertion. RECENT FINDINGS Breathlessness assessment tools commonly invite people to recall their breathlessness while at rest with reference to activities of daily living. To directly quantify breathlessness, however, requires assessment of the dimensions of breathlessness (e.g., sensory intensity, quality, and unpleasantness) in response to a standardized exercise stimulus. Different exercise stimuli (e.g., self-paced, incremental, and constant work rate exercise tests) have been used to elicit a breathlessness response. Self-paced (e.g., 6-min walk test) and incremental exercise tests assess exercise tolerance or endurance, and are not recommended for assessment of exertional breathlessness. Constant work rate tests, however, including recently validated 3-min constant-rate stair stepping and walking tests, standardize the exercise stimulus to enable the breathlessness response to be directly quantified and monitored over time. SUMMARY To adequately guide symptom management and assess intervention efficacy, clinicians and researchers should assess breathlessness with multidimensional assessment tools in response to a standardized and individualized exercise stimulus.
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von Leupoldt A, Farre N. The load of dyspnoea on brain and legs. Eur Respir J 2020; 56:56/2/2001096. [DOI: 10.1183/13993003.01096-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 01/05/2023]
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Lawi D, Dupuis-Lozeron E, Berra G, Allali G, Similowski T, Adler D. Experimental dyspnoea interferes with locomotion and cognition: a randomised trial. Eur Respir J 2020; 56:13993003.00054-2020. [PMID: 32299853 DOI: 10.1183/13993003.00054-2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/24/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND Chronic respiratory diseases are associated with cognitive dysfunction, but whether dyspnoea by itself negatively impacts on cognition has not been demonstrated. Cortical networks engaged in subjects experiencing dyspnoea are also activated during other tasks that require cognitive input and this may provoke a negative impact through interference with each other. METHODS This randomised, crossover trial investigated whether experimentally-induced dyspnoea would negatively impact on locomotion and cognitive function among 40 healthy adults. Crossover conditions were unloaded breathing or loaded breathing using an inspiratory threshold load. To evaluate locomotion, participants were assessed by the Timed Up and Go (TUG) test. Cognitive function was assessed by categorical and phonemic verbal fluency tests, the Trail Making Tests (TMTs) A and B (executive function), the CODE test from the Wechsler Adult Intelligence Scale (WAIS)-IV (processing speed) and by direct and indirect digit span (working memory). RESULTS The mean time difference to perform the TUG test between unloaded and loaded breathing was -0.752 s (95% CI -1.012 to -0.492 s) (p<0.001). Executive function, processing speed and working memory performed better during unloaded breathing, particularly for subjects starting first with the loaded breathing condition. CONCLUSION Our data suggest that respiratory threshold loading to elicit dyspnoea had a major impact on locomotion and cognitive function in healthy adults.
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Affiliation(s)
- David Lawi
- Division of Pulmonary Diseases, Geneva University Hospitals, Geneva, Switzerland
| | - Elise Dupuis-Lozeron
- Clinical Research Centre and Division of Clinical Epidemiology, Dept of Health and Community Medicine, Geneva University Hospitals, Geneva, Switzerland.,University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Gregory Berra
- Division of Pulmonary Diseases, Geneva University Hospitals, Geneva, Switzerland
| | - Gilles Allali
- University of Geneva Faculty of Medicine, Geneva, Switzerland.,Dept of Neurology, Geneva University Hospitals, Geneva, Switzerland.,Dept of Neurology, Division of Cognitive and Motor Aging, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Thomas Similowski
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Intensive Care Unit and Respiratory Division (Département "R3S"), Paris, France.,Sorbonne University, UPMC Paris 06, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Dan Adler
- Division of Pulmonary Diseases, Geneva University Hospitals, Geneva, Switzerland .,University of Geneva Faculty of Medicine, Geneva, Switzerland
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34
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Lee AHY, Snowden CP, Hopkinson NS, Pattinson KTS. Pre-operative optimisation for chronic obstructive pulmonary disease: a narrative review. Anaesthesia 2020; 76:681-694. [PMID: 32710678 DOI: 10.1111/anae.15187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2020] [Indexed: 12/26/2022]
Abstract
Chronic obstructive pulmonary disease is a condition commonly present in older people undergoing surgery and confers an increased risk of postoperative complications and mortality. Although predominantly a respiratory disease, it frequently has extra-pulmonary manifestations and typically occurs in the context of other long-term conditions. Patients experience a range of symptoms that affect their quality of life, functional ability and clinical outcomes. In this review, we discuss the evidence for techniques to optimise the care of people with chronic obstructive pulmonary disease in the peri-operative period, and address potential new interventions to improve outcomes. The article centres on pulmonary rehabilitation, widely available for the treatment of stable chronic obstructive pulmonary disease, but less often used in a peri-operative setting. Current evidence is largely at high risk of bias, however. Before surgery it is important to ensure that what have been called the 'five fundamentals' of chronic obstructive pulmonary disease treatment are achieved: smoking cessation; pulmonary rehabilitation; vaccination; self-management; and identification and optimisation of co-morbidities. Pharmacological treatment should also be optimised, and some patients may benefit from lung volume reduction surgery. Psychological and behavioural factors are important, but are currently poorly understood in the peri-operative period. Considerations of the risk and benefits of delaying surgery to ensure the recommended measures are delivered depends on patient characteristics and the nature and urgency of the planned intervention.
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Affiliation(s)
- A H Y Lee
- Nuffield Department of Clinical Neurosciences, University of Oxford, UK
| | - C P Snowden
- Newcastle Hospitals NHS Trust, Newcastle, UK.,Newcastle University, Newcastle, UK
| | - N S Hopkinson
- National Heart and Lung Institute, Imperial College, London, UK.,The Royal Brompton Hospital, London, UK
| | - K T S Pattinson
- Nuffield Department of Clinical Neurosciences, University of Oxford, UK.,Nuffield Department of Anaesthetics, John Radcliffe Hospital, Oxford, UK
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35
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Johnson MJ, Currow DC. Opioids for breathlessness: a narrative review. BMJ Support Palliat Care 2020; 10:287-295. [DOI: 10.1136/bmjspcare-2020-002314] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/25/2020] [Accepted: 06/03/2020] [Indexed: 01/14/2023]
Abstract
Chronic breathlessness is a disabling and distressing condition for which there is a growing evidence base for a range of interventions. Non-pharmacological interventions are the mainstay of management and should be optimised prior to use of opioid medication. Opioids are being implemented variably in practice for chronic breathlessness. This narrative review summarises the evidence defining current opioids for breathlessness best practice and identifies remaining research gaps. There is level 1a evidence to support the use of opioids for breathlessness. The best evidence is for 10–30 mg daily de novo low-dose oral sustained-release morphine in opioid-naïve patients. This should be considered the current standard of care following independent, regulatory scrutiny by one of the world’s therapeutics regulatory bodies. Optimal benefits are seen in steady state; however, there are few published data about longer term benefits or harms. Morphine-related adverse events are common but mostly mild and self-limiting on withdrawal of drug. Early and meticulous management of constipation, nausea and vomiting is needed particularly in the first week of administration. Serious adverse events are no more common than placebo in clinical studies. Observational studies in severe chronic lung disease do not show excess mortality or hospital admission in those taking opioids. We have no long-term data on immune or endocrine function. There are promising data regarding prophylaxis for exertion-related breathlessness, but given the risks associated with transmucosal fentanyl, caution is needed with regard to clinical use pending longer term, robust safety data.
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36
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Bonnevie T, Medrinal C, Combret Y, Debeaumont D, Lamia B, Muir JF, Cuvelier A, Prieur G, Gravier FE. Mid-Term Effects of Pulmonary Rehabilitation on Cognitive Function in People with Severe Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2020; 15:1111-1121. [PMID: 32546999 PMCID: PMC7245438 DOI: 10.2147/copd.s249409] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/21/2020] [Indexed: 12/22/2022] Open
Abstract
Purpose Cognitive dysfunction is a common impairment associated with COPD. However, little is known about 1) its prevalence among those subjects referred for pulmonary rehabilitation (PR), 2) how it may affect the benefit of PR, 3) whether PR improves cognitive function and 4) whether cognitive dysfunction affects the usability of telehealth technology usually used to deliver in-home PR. Patients and Methods Fifty-six subjects with stable COPD (54% females, mean age 62 years (SD 9) and median FEV1 0.9 L (IQR 0.7 to 1.1)) participated in this multicenter observational study and performed 24 sessions of PR. The Montreal Cognitive Assessment tool (MoCA) was used to assess the occurrence of mild cognitive dysfunction (using a screening cutoff <26) at baseline, completion of PR and 3 months of follow-up. Results Mild cognitive dysfunction was found in 41 subjects (73% [95% CI: 60 to 83%]). The MoCA score significantly improved following PR for those people with baseline mild cognitive dysfunction (p<0.01). There was no significant difference in clinical outcomes between those people with or without mild cognitive dysfunction following PR nor in the proportion of subjects who were autonomous in using the telemonitoring system (83% compared with 71%, p=0.60). Conclusion Mild cognitive dysfunction is highly prevalent among those people with COPD referred for PR but does not affect the benefits of PR nor the usability of a telemonitoring system. PR may improve short- and mid-term cognitive function for those people who experience mild cognitive dysfunction at the time they are referred to PR.
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Affiliation(s)
- Tristan Bonnevie
- ADIR Association, Rouen University Hospital, Rouen, France.,Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France
| | - Clement Medrinal
- Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France.,Intensive Care Unit Department, Le Havre Hospital, Le Havre, France
| | - Yann Combret
- Physiotherapy Department, Le Havre Hospital, Le Havre, France.,Institute of Experimental and Clinical Research (IREC), Pole of Pulmonology, ORL and Dermatology, Catholic University of Louvain, Brussels, Belgium
| | - David Debeaumont
- Department of Respiratory and Exercise Physiology and CIC-CRB 1404, Rouen University Hospital, Rouen, France
| | - Bouchra Lamia
- Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France.,Intensive Care Unit Department, Le Havre Hospital, Le Havre, France.,Pulmonary, Thoracic Oncology and Respiratory Intensive Care Department, Rouen University Hospital, Rouen, France
| | - Jean-François Muir
- ADIR Association, Rouen University Hospital, Rouen, France.,Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France.,Pulmonary, Thoracic Oncology and Respiratory Intensive Care Department, Rouen University Hospital, Rouen, France
| | - Antoine Cuvelier
- Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France.,Pulmonary, Thoracic Oncology and Respiratory Intensive Care Department, Rouen University Hospital, Rouen, France
| | - Guillaume Prieur
- Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France.,Intensive Care Unit Department, Le Havre Hospital, Le Havre, France.,Institute of Experimental and Clinical Research (IREC), Pole of Pulmonology, ORL and Dermatology, Catholic University of Louvain, Brussels, Belgium
| | - Francis-Edouard Gravier
- ADIR Association, Rouen University Hospital, Rouen, France.,Normandy University UNIROUEN, UPRES EA 3830, Haute Normandie Research and Biomedical Innovation, Rouen, France
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Williams MT, Johnston KN, Paquet C. Cognitive Behavioral Therapy for People with Chronic Obstructive Pulmonary Disease: Rapid Review. Int J Chron Obstruct Pulmon Dis 2020; 15:903-919. [PMID: 32425516 PMCID: PMC7186773 DOI: 10.2147/copd.s178049] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 02/21/2020] [Indexed: 12/30/2022] Open
Abstract
Cognitive behavioral therapy (CBT) is increasingly recommended in the management of people living with chronic obstructive pulmonary disease (COPD). This rapid review presents the evidence base for CBT for people with COPD and describes 1) the nature of CBT interventions and comparators in controlled trials (high or low resource intensity); and 2) factors influencing intervention effects on health outcomes (anxiety, depression, breathlessness, quality of life and exercise capacity). Primary studies reporting CBT interventions in adults with COPD were identified with data extracted by a single reviewer (20% of studies checked for data accuracy). Studies were synthesized descriptively with meta-analyses (random effects models) of controlled trials undertaken to report mean standardized effect sizes (95% CI) for health outcomes. Random effects meta-regression models explored whether CBT target, intervention dosage, intensity, facilitator profession, delivery mode, clinically significant anxiety/depression, trial design/quality and sample size predicted effect size. The search identified 33 primary studies published between 1996 and 2019 (controlled trials n=24, single group cohort n=6, case exemplars n=2, phenomenological n=1). Controlled trials frequently compared high-intensity CBT interventions against enhanced/usual care (n=12) or high-intensity CBT interventions against high-intensity comparators (n=11). When all controlled studies were included, small, significant improvements favoring CBT were evident across all health outcomes (SMD ranged from -0.27 to 0.35, p<0.05). When intensity dyads were considered, significant improvements were evident only when high-intensity CBT interventions were compared to enhanced usual care/usual care (SMDs ranged from -0.45 to 0.54, p <0.05). No other variable consistently predicted intervention effect sizes across all health outcomes. Overall, the evidence base supports the use of CBT for a range of health outcomes in people with COPD. Consistent benefits were evident when high-resource-intensive CBT interventions were compared to usual care. Low-resource-intensity CBT warrants further investigation in settings where cost of comprehensive care is prohibitive.
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Affiliation(s)
- Marie T Williams
- Innovation, Implementation and Clinical Translation in Health (IIMPACT), School of Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Kylie N Johnston
- Innovation, Implementation and Clinical Translation in Health (IIMPACT), School of Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Catherine Paquet
- Australian Centre of Precision Health, School of Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
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Li S, Lv P, He M, Zhang W, Liu J, Gong Y, Wang T, Gong Q, Ji Y, Lui S. Cerebral regional and network characteristics in asthma patients: a resting-state fMRI study. Front Med 2020; 14:792-801. [PMID: 32270434 DOI: 10.1007/s11684-020-0745-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/18/2019] [Indexed: 02/08/2023]
Abstract
Asthma is a serious health problem that involves not only the respiratory system but also the central nervous system. Previous studies identified either regional or network alterations in patients with asthma, but inconsistent results were obtained. A key question remains unclear: are the regional and neural network deficits related or are they two independent characteristics in asthma? Answering this question is the aim of this study. By collecting resting-state functional magnetic resonance imaging from 39 patients with asthma and 40 matched health controls, brain functional measures including regional activity (amplitude of low-frequency fluctuations) and neural network function (degree centrality (DC) and functional connectivity) were calculated to systematically characterize the functional alterations. Patients exhibited regional abnormities in the left angular gyrus, right precuneus, and inferior temporal gyrus within the default mode network. Network abnormalities involved both the sensorimotor network and visual network with key regions including the superior frontal gyrus and occipital lobes. Altered DC in the lingual gyrus was correlated with the degree of airway obstruction. This study elucidated different patterns of regional and network changes, thereby suggesting that the two parameters reflect different brain characteristics of asthma. These findings provide evidence for further understanding the potential cerebral alterations in the pathophysiology of asthma.
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Affiliation(s)
- Siyi Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Peilin Lv
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Min He
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenjing Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Jieke Liu
- Department of Radiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041, China
| | - Yao Gong
- Department of Geriatric Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, 610036, China
| | - Ting Wang
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Yulin Ji
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Su Lui
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, 610041, China.
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39
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Williams MT, Lewthwaite H, Brooks D, Jensen D, Abdallah SJ, Johnston KN. Chronic Breathlessness Explanations and Research Priorities: Findings From an International Delphi Survey. J Pain Symptom Manage 2020; 59:310-319.e12. [PMID: 31655188 DOI: 10.1016/j.jpainsymman.2019.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 10/25/2022]
Abstract
CONTEXT Explanations provided by health professionals may underpin helpful or harmful symptom beliefs and expectations of people living with chronic breathlessness. OBJECTIVES This study sought perspectives from health professionals with clinical/research expertise in chronic breathlessness on priority issues in chronic breathlessness explanations and research. METHODS Authors (n = 74) of publications specific to chronic breathlessness were invited to a three-round Delphi survey. Responses to open-ended questions (Round 1 "What is important to: include/avoid when explaining chronic breathlessness; prioritize in research?") were transformed to Likert scale (1-9) items for rating in subsequent rounds. A priori consensus was defined as ≥70% of respondents rating an item as important (Likert rating 7-9) and interquartile range ≤2. RESULTS Of the 31 Round 1 respondents (nine countries, five professional disciplines), 24 (77%) completed Rounds 2 and 3. Sixty-three items met consensus (include n = 28; avoid n = 9; research n = 26). Explanations of chronic breathlessness should use patient-centered communication; acknowledge the distress, variability, and importance of this sensation; emphasize current management principles; clarify maladaptive beliefs and expectations; and avoid moral culpability and inappropriate reassurance. Research priorities included the need 1) for a comprehensive understanding of breathlessness science; 2) to optimize, explore, and develop effective interventions, both pharmacological and nonpharmacological; and 3) determine effective models of care including strategies for education and training of health professionals and people caring for, or living with, chronic breathlessness. CONCLUSION These consensus-based concepts for chronic breathlessness explanations and research provide a starting point for conversations between patients, carers, clinicians, and researchers within the chronic breathlessness community.
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Affiliation(s)
- Marie T Williams
- Innovation, Implementation And Clinical Translation in Health (IIMPACT), School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia.
| | - Hayley Lewthwaite
- Innovation, Implementation And Clinical Translation in Health (IIMPACT), School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia; Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montreal, Canada
| | - Dina Brooks
- School of Rehabilitation Sciences, McMaster University, Hamilton, Canada; Department of Respiratory Medicine, West Park Healthcare Centre, Toronto, Canada
| | - Dennis Jensen
- Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montreal, Canada
| | - Sara J Abdallah
- Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montreal, Canada
| | - Kylie N Johnston
- School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
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40
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Reijnders T, Troosters T, Janssens W, Gosselink R, Langer D, Davenport PW, von Leupoldt A. Brain Activations to Dyspnea in Patients With COPD. Front Physiol 2020; 11:7. [PMID: 32038311 PMCID: PMC6992658 DOI: 10.3389/fphys.2020.00007] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/09/2020] [Indexed: 11/13/2022] Open
Abstract
We compared the perception and neural processing of respiratory sensations between 20 COPD patients and 20 healthy controls by means of respiratory-related evoked potentials (RREP) in the electroencephalogram (EEG). RREPs were induced by short inspiratory occlusions while 129-channel EEG was measured. COPD patients rated the occlusions as more intense and unpleasant (p's < 0.001) and showed higher mean amplitudes for the RREP components P1 (p = 0.0004), N1 (p = 0.024), P2 (p = 0.019), and P3 (p = 0.018). Our results indicate that COPD patients demonstrate greater perception and neural processing of respiratory sensations, which presumably reflects the highly aversive and attention-demanding character of these sensations for COPD patients.
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Affiliation(s)
| | - Thierry Troosters
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium.,Department of Chronic Disease, Metabolism and Aging, KU Leuven, Leuven, Belgium
| | - Wim Janssens
- Department of Chronic Disease, Metabolism and Aging, KU Leuven, Leuven, Belgium.,Respiratory Division, University Hospital Leuven, Leuven, Belgium
| | - Rik Gosselink
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Daniel Langer
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Paul W Davenport
- Department of Physiological Sciences, University of Florida, Gainesville, FL, United States
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41
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O'Donnell DE, Milne KM, James MD, de Torres JP, Neder JA. Dyspnea in COPD: New Mechanistic Insights and Management Implications. Adv Ther 2020; 37:41-60. [PMID: 31673990 PMCID: PMC6979461 DOI: 10.1007/s12325-019-01128-9] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 12/29/2022]
Abstract
Dyspnea is the most common symptom experienced by patients with chronic obstructive pulmonary disease (COPD). To avoid exertional dyspnea, many patients adopt a sedentary lifestyle which predictably leads to extensive skeletal muscle deconditioning, social isolation, and its negative psychological sequalae. This “dyspnea spiral” is well documented and it is no surprise that alleviation of this distressing symptom has become a key objective highlighted across COPD guidelines. In reality, this important goal is often difficult to achieve, and successful symptom management awaits a clearer understanding of the underlying mechanisms of dyspnea and how these can be therapeutically manipulated for the patients’ benefit. Current theoretical constructs of the origins of activity-related dyspnea generally endorse the classical demand–capacity imbalance theory. Thus, it is believed that disruption of the normally harmonious relationship between inspiratory neural drive (IND) to breathe and the simultaneous dynamic response of the respiratory system fundamentally shapes the expression of respiratory discomfort in COPD. Sadly, the symptom of dyspnea cannot be eliminated in patients with advanced COPD with relatively fixed pathophysiological impairment. However, there is evidence that effective symptom palliation is possible for many. Interventions that reduce IND, without compromising alveolar ventilation (VA), or that improve respiratory mechanics and muscle function, or that address the affective dimension, achieve measurable benefits. A common final pathway of dyspnea relief and improved exercise tolerance across the range of therapeutic interventions (bronchodilators, exercise training, ambulatory oxygen, inspiratory muscle training, and opiate medications) is reduced neuromechanical dissociation of the respiratory system. These interventions, singly and in combination, partially restore more harmonious matching of excessive IND to ventilatory output achieved. In this review we propose, on the basis of a thorough review of the recent literature, that effective dyspnea amelioration requires combined interventions and a structured multidisciplinary approach, carefully tailored to meet the specific needs of the individual.
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Affiliation(s)
- Denis E O'Donnell
- Respiratory Investigation Unit, Division of Respirology, Department of Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, ON, Canada.
| | - Kathryn M Milne
- Respiratory Investigation Unit, Division of Respirology, Department of Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, ON, Canada
- Clinician Investigator Program, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Matthew D James
- Respiratory Investigation Unit, Division of Respirology, Department of Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, ON, Canada
| | - Juan Pablo de Torres
- Division of Respirology, Department of Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, ON, Canada
| | - J Alberto Neder
- Division of Respirology, Department of Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, ON, Canada
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Abstract
Breathlessness is a common symptom for patients with terminal illness and can be challenging to manage. Breathlessness is acknowledged to be an interaction between body and mind. There are a variety of pharmacological and non-pharmacological therapies that can be beneficial. The holistic assessment of the breathlessness patient should enable delivery of a tailored package of care focused on relief of symptoms.
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Affiliation(s)
- Suzie Gillon
- Consultant in Palliative Medicine, Department of Palliative Care, St James's University Hospital, Leeds LS9 7TF
| | - Ian J Clifton
- Consultant in Respiratory Medicine, Department of Respiratory Medicine, St James's University Hospital, Leeds
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43
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Abdallah SJ, Faull OK, Wanigasekera V, Finnegan SL, Jensen D, Pattinson KTS. Opioids for breathlessness: psychological and neural factors influencing response variability. Eur Respir J 2019; 54:13993003.00275-2019. [PMID: 31073088 PMCID: PMC6751386 DOI: 10.1183/13993003.00275-2019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/27/2019] [Indexed: 12/15/2022]
Abstract
Chronic breathlessness is a multidimensional and aversive symptom, which is often poorly explained by underlying pathophysiology [1]. For many sufferers, breathlessness is refractory to maximal medical therapies that target disease processes [2]. However, opioids are thought to be a possible therapeutic avenue to treat symptomology independently of disease [3]. Importantly, research in chronic pain has demonstrated that qualities such as anxiety and depression (collectively termed negative affect here) can both exacerbate symptoms [4] and reduce opioid efficacy [5, 6]. Therefore, it may be pertinent to consider such behavioural factors when contemplating the use of opioids for breathlessness. Diminished opioid efficacy in the treatment of breathlessness is related to negative affect and anticipatory brain activity in the anterior cingulate and medial prefrontal cortex.http://bit.ly/2LXyyDo
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Affiliation(s)
- Sara J Abdallah
- Clinical Exercise & Respiratory Physiology Laboratory, Dept of Kinesiology & Physical Education, McGill University, Montréal, QC, Canada.,Joint first authors
| | - Olivia K Faull
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Dept of Clinical Neurosciences, University of Oxford, Oxford, UK.,Joint first authors
| | - Vishvarani Wanigasekera
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Dept of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Sarah L Finnegan
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Dept of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Dennis Jensen
- Clinical Exercise & Respiratory Physiology Laboratory, Dept of Kinesiology & Physical Education, McGill University, Montréal, QC, Canada
| | - Kyle T S Pattinson
- Wellcome Centre for Integrative Neuroimaging and Nuffield Division of Anaesthetics, Nuffield Dept of Clinical Neurosciences, University of Oxford, Oxford, UK
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Impact of Disease-Specific Fears on Pulmonary Rehabilitation Trajectories in Patients with COPD. J Clin Med 2019; 8:jcm8091460. [PMID: 31540306 PMCID: PMC6780973 DOI: 10.3390/jcm8091460] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 01/23/2023] Open
Abstract
Disease-specific fears predict health status in chronic obstructive pulmonary disease (COPD), but their role in pulmonary rehabilitation (PR) remains poorly understood and especially longer-term evaluations are lacking. We therefore investigated changes in disease-specific fears over the course of PR and six months after PR, and investigated associations with PR outcomes (COPD assessment test (CAT) and St. Georges respiratory questionnaire (SGRQ)) in a subset of patients with COPD (n = 146) undergoing a 3-week inpatient PR program as part of the STAR study (Clinicaltrials.gov, ID: NCT02966561). Disease-specific fears as measured with the COPD anxiety questionnaire improved after PR. For fear of dyspnea, fear of physical activity and fear of disease progression, improvements remained significant at six-month follow-up. Patients with higher disease-specific fears at baseline showed elevated symptom burden (CAT and SGRQ Symptom scores), which persisted after PR and at follow-up. Elevated disease-specific fears also resulted in reduced improvements in Quality of Life (SGRQ activity and impact scales) after PR and at follow-up. Finally, improvement in disease-specific fears was associated with improvement in symptom burden and quality of life. Adjustment for potential confounding variables (sex, smoking status, age, lung function, and depressive symptoms) resulted in comparable effects. These findings show the role of disease-specific fears in patients with COPD during PR and highlight the need to target disease-specific fears to further improve the effects of PR.
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Abstract
PURPOSE OF REVIEW Breathlessness debilitates countless people with a wide range of common diseases. For some people, the experience of breathlessness is poorly explained by the findings of medical tests. This disparity complicates diagnostic and treatment options and means that disease-modifying treatments do not always have the expected effect upon symptoms. These observations suggest that brain processing of respiratory perceptions may be somewhat independent of disease processes. This may help to explain the dissonance observed in some patients between physical disease markers and the lived experience of breathlessness. RECENT FINDINGS A body of breathlessness research using functional neuroimaging has identified a relatively consistent set of brain areas that are associated with breathlessness. These areas include the insula, cingulate and sensory cortices, the amygdala and the periaqueductal gray matter. We interpret these findings in the context of new theories of perception that emphasize the importance of distributed brain networks. Within this framework, these perceptual networks function by checking an internal model (a set of expectations) against peripheral sensory inputs, instead of the brain acting as a passive signal transducer. Furthermore, other factors beyond the physiology of breathlessness can influence the system. SUMMARY A person's expectations and mood are major contributors to the function of the brain networks that generate perceptions of breathlessness. Breathlessness, therefore, arises from inferences made by the brain's integration of both expectations and sensory inputs. By better understanding individual differences across these contributing perceptual factors, we will be better poised to develop targeted and individualized treatments for breathlessness that could complement disease-modifying therapies.
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Affiliation(s)
- Lucy L. Marlow
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Olivia K. Faull
- Translational Neuromodeling Unit, Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Sarah L. Finnegan
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Kyle T.S. Pattinson
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
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Booth S, Johnson MJ. Improving the quality of life of people with advanced respiratory disease and severe breathlessness. Breathe (Sheff) 2019; 15:198-215. [PMID: 31508158 PMCID: PMC6717608 DOI: 10.1183/20734735.0200-2019] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Advanced respiratory disease imposes a greater symptom burden than many cancers but not does have comparable recognition of the need for supportive and palliative care or the infrastructure for its systematic delivery. Consequently, many people with advanced respiratory disease (and those closest to them) have a poor quality of life, disabled by chronic breathlessness, fatigue and other symptoms. They are socially isolated by the consequences of long-term illness and are often financially impoverished. The past decade has seen an increasing realisation that care for this group must improve and that symptom management must be prioritised. Clinical guidelines recommend person-centred care, including access to supportive and palliative care as needed, as part of standard medical practice. Advanced lung disease clinics and specialist breathlessness services (pioneered within palliative care) are developing within respiratory medicine services but are provided inconsistently. This review covers the comprehensive assessment of the patient with advanced respiratory disease, the importance of supporting carers and the current best practice in the management of breathlessness, fatigue and cough. It also suggests ways to incorporate person-centred care into the general respiratory clinic, assisted by better liaison with specialist palliative and primary care. Emerging evidence shows that excellent symptom management leads to better clinical outcomes and reduces inappropriate use of emergency medical services. Improving quality of life in people with chronic breathlessness, with a combination of (mostly) non-drug and drug interventions, improves clinical outcomes and reduces patient/carer suffering and futile use of medical serviceshttp://bit.ly/30s9ckh
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Affiliation(s)
- Sara Booth
- Cambridge Breathlessness Intervention Service, Cambridge University Hospitals NHS Foundation Trust, University of Cambridge, Cambridge, UK.,Cicely Saunders Institute, King's College London, London, UK
| | - Miriam J Johnson
- Wolfson Palliative Care Research Centre, University of Hull, Hull, UK
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Spilling CA, Bajaj MPK, Burrage DR, Ruickbie S, Thai NJ, Baker EH, Jones PW, Barrick TR, Dodd JW. Contributions of cardiovascular risk and smoking to chronic obstructive pulmonary disease (COPD)-related changes in brain structure and function. Int J Chron Obstruct Pulmon Dis 2019; 14:1855-1866. [PMID: 31686798 PMCID: PMC6709516 DOI: 10.2147/copd.s213607] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/10/2019] [Indexed: 12/12/2022] Open
Abstract
Background Brain damage and cardiovascular disease are extra-pulmonary manifestations of chronic obstructive pulmonary disease (COPD). Cardiovascular risk factors and smoking are contributors to neurodegeneration. This study investigates whether there is a specific, COPD-related deterioration in brain structure and function independent of cardiovascular risk factors and smoking. Materials and methods Neuroimaging and clinical markers of brain structure (micro- and macro-) and function (cognitive function and mood) were compared between 27 stable COPD patients (age: 63.0±9.1 years, 59.3% male, forced expiratory volume in 1 second [FEV1]: 58.1±18.0% pred.) and 23 non-COPD controls with >10 pack years smoking (age: 66.6±7.5 years, 52.2% male, FEV1: 100.6±19.1% pred.). Clinical relationships and group interactions with brain structure were also tested. All statistical analyses included correction for cardiovascular risk factors, smoking, and aortic stiffness. Results COPD patients had significantly worse cognitive function (p=0.011), lower mood (p=0.046), and greater gray matter atrophy (p=0.020). In COPD patients, lower mood was associated with markers of white matter (WM) microstructural damage (p<0.001), and lower lung function (FEV1/forced vital capacity and FEV1) with markers of both WM macro (p=0.047) and microstructural damage (p=0.028). Conclusion COPD is associated with both structural (gray matter atrophy) and functional (worse cognitive function and mood) brain changes that cannot be explained by measures of cardiovascular risk, aortic stiffness, or smoking history alone. These results have important implications to guide the development of new interventions to prevent or delay progression of neuropsychiatric comorbidities in COPD. Relationships found between mood and microstructural abnormalities suggest that in COPD, anxiety, and depression may occur secondary to WM damage. This could be used to better understand disabling symptoms such as breathlessness, improve health status, and reduce hospital admissions.
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Affiliation(s)
- Catherine A Spilling
- Institute for Molecular and Clinical Sciences, St George’s University of London, LondonSW17 ORE, UK
| | - Mohani-Preet K Bajaj
- Institute for Molecular and Clinical Sciences, St George’s University of London, LondonSW17 ORE, UK
| | - Daniel R Burrage
- Institute for Infection and Immunity, St George’s University of London, LondonSW17 ORE, UK
| | - Sachelle Ruickbie
- Institute for Infection and Immunity, St George’s University of London, LondonSW17 ORE, UK
| | - N Jade Thai
- Clinical Research and Imaging Centre, University of Bristol, BristolBS2 8DX, UK
| | - Emma H Baker
- Institute for Infection and Immunity, St George’s University of London, LondonSW17 ORE, UK
| | - Paul W Jones
- Institute for Infection and Immunity, St George’s University of London, LondonSW17 ORE, UK
| | - Thomas R Barrick
- Institute for Molecular and Clinical Sciences, St George’s University of London, LondonSW17 ORE, UK
| | - James W Dodd
- Academic Respiratory Unit, University of Bristol, BristolBS10 5NB, UK
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Almendros I, Baillieul S, Caballero C, Degani-Costa LH, Furian M, Hirotsu C, Louvaris Z, Thiel S, Turnbull CD. Highlights from the 2018 European Respiratory Society International Congress: sleep and clinical physiology. ERJ Open Res 2019; 5:00201-2018. [PMID: 31304175 PMCID: PMC6612603 DOI: 10.1183/23120541.00201-2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/22/2019] [Indexed: 12/13/2022] Open
Abstract
The 2018 European Respiratory Society (ERS) International Congress held in Paris, France, served as a platform to discover the latest research on respiratory diseases, the improvement in their treatments and patient care. Specifically, the scientific sessions organised by ERS Assembly 4 provided novel insights into sleep disordered breathing and fresh knowledge in respiratory physiology, stressing its importance to understanding and treating respiratory diseases. This article, divided by session, will summarise the most relevant studies presented at the ERS International Congress. Each session has been written by early career members specialised in the different fields of this interdisciplinary assembly.
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Affiliation(s)
- Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Madrid, Spain
- All authors contributed equally and are listed alphabetically
| | - Sébastien Baillieul
- HP2 laboratory, Grenoble Alpes University, Grenoble, France
- U1042, INSERM, Grenoble, France
- Pôle Thorax et Vaisseaux, Grenoble Alpes University Hospital, Grenoble, France
- All authors contributed equally and are listed alphabetically
| | - Candela Caballero
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Madrid, Spain
- Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- All authors contributed equally and are listed alphabetically
| | - Luiza Helena Degani-Costa
- Pulmonary Function and Clinical Exercise Physiology Unit, Pulmonary Division, Dept of Medicine, Federal University of São Paulo, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
- All authors contributed equally and are listed alphabetically
| | - Michael Furian
- Dept of Pulmonology and Sleep Disorders Center, University Hospital of Zurich, Zurich, Switzerland
- All authors contributed equally and are listed alphabetically
| | - Camila Hirotsu
- Center for Investigation and Research in Sleep, University Hospital of Lausanne, Lausanne, Switzerland
- All authors contributed equally and are listed alphabetically
| | - Zafeiris Louvaris
- Faculty of Movement and Rehabilitation Sciences, Division of Respiratory Rehabilitation, Dept of Rehabilitation Sciences, KU Leuven, Research Group for Rehabilitation in Internal Disorders, University Hospitals Leuven, Leuven, Belgium
- All authors contributed equally and are listed alphabetically
| | - Sira Thiel
- Dept of Pulmonology and Sleep Disorders Center, University Hospital of Zurich, Zurich, Switzerland
- All authors contributed equally and are listed alphabetically
| | - Christopher D. Turnbull
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
- Oxford Centre for Respiratory Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
- All authors contributed equally and are listed alphabetically
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O’Donnell DE, James MD, Milne KM, Neder JA. The Pathophysiology of Dyspnea and Exercise Intolerance in Chronic Obstructive Pulmonary Disease. Clin Chest Med 2019; 40:343-366. [DOI: 10.1016/j.ccm.2019.02.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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