Pulmonary Rehabilitation for Adults with Chronic Respiratory Disease: An Official American Thoracic Society Clinical Practice Guideline

Pulmonary Rehabilitation for Adults With Chronic Respiratory Disease

This JAMA Clinical Guidelines Synopsis summarizes the American Thoracic Society’s 2023 guidelines on pulmonary rehabilitation for adults with chronic respiratory disease.

Assessment of online YouTube videos as a source of information and instruction for pulmonary rehabilitation

BACKGROUND/OBJECTIVES

Pulmonary rehabilitation (PR) benefits individuals with chronic respiratory conditions beyond COPD; however, the quality of online resources has not been evaluated. The aims of this study were to assess the content, quality, and comprehensibility of YouTube videos that provide PR to individuals with chronic lung diseases other than COPD.

METHODS

A search was conducted on YouTube for videos related to PR on non-COPD conditions, with the first 350 videos screened for eligibility (2004-2024). Videos were assessed for content based on predefined scoring matrix derived from PR guidelines, evaluated for their quality using the modified DISCERN tool and Global Quality Scale (GQS), and assessed for their understandability and actionability using the Patient Education Materials and Assessment Tool. Engagement metrics including viewing rate and interaction index were also analyzed.

RESULTS

Of the 59 videos included, there was significant heterogeneity in PR content (i.e. aerobic, strength training, flexibility, etc.). 83 % of the videos were published following the onset of COVID-19 pandemic (March 2020), and 85 % of the videos were not directed at specific disease states. Video quality was moderate, with median modified DISCERN and GQS of 3 IQR[3-4] and 3 IQR[2-4] out of 5, respectively. Mean understandability and actionability were above the 70 % threshold. Engagement metrics revealed that median video views were 2857 (IQR[637-10,729]), but engagement was low (1.4 % IQR[1.0-2.7]).

CONCLUSION

The study highlights variability in PR content and moderate quality of videos, with reasonable comprehensibility. There is a need for more standardized and disease-specific PR online video resources for non-COPD states.

"A new realization of what I'm able to do": exercise interventions can impact knowledge, confidence and daily activity for people with pulmonary arterial hypertension (PAH)

PURPOSE

Exercise-based rehabilitation interventions can improve functional outcomes in pulmonary arterial hypertension (PAH), but barriers to participation are common and little is known about the patient-reported experience. This study evaluated the patient experience of participating in structured, outpatient exercise interventions for PAH, and explored how participation may impact knowledge, attitudes and engagement in physical activity.

METHODS

A mixed-methods evaluation was conducted alongside a pilot trial (ExPAH). Semi-structured interviews were completed with participants who undertook a 12-week, outpatient exercise-based intervention for PAH. Interview data were analyzed via descriptive and inductive thematic analyses.

RESULTS

Fourteen participants were included (mean 53 ± 14.9 years, 79% females). Formal therapy programs were reported to be enjoyable and increased participant's knowledge, confidence to exercise, and daily physical activity. Six dominant themes described the subjective experience of undertaking a structured program: confronting a sense of loss and limitation through exercise; "permission to try" built knowledge and confidence; finding joy and empowerment through physical activity; the importance of motivation; reframing exercise as part of daily life; and exercise as liberating.

CONCLUSIONS

Structured therapy programs can increase knowledge, confidence, and positive perceptions of physical activity for people with PAH. Structured programs were reported to be enjoyable, empowering and increased functional independence.

Non-Pharmacological Management of Idiopathic Pulmonary Fibrosis

Idiopathic pulmonary fibrosis (IPF) is a relatively common progressive fibrotic interstitial lung disease associated with significant morbidity and mortality. The available medications for IPF only slow down the disease process, with lung transplantation the only option for a cure. Non-pharmacological therapies are significant adjuncts that can improve symptom burden and quality of life with minimal or no side effects. Supplemental oxygen can improve exercise capacity and the sensation of dyspnea in a significant portion of patients with resting or exertional hypoxemia and has been supported by several professional societies. Pulmonary rehabilitation is a comprehensive program that includes education and therapeutic exercises to improve patient stamina and strength. It is one of the few interventions that have been shown to produce a meaningful increase in a patient's exercise capacity, but its wide adoption is limited by availability, especially in rural areas. Sleep optimization with supplemental oxygen and positive airway pressure therapy should actively be investigated for all patients diagnosed with IPF. Although gastroesophageal reflux control with non-pharmacological means is still controversial as an intervention to reduce the rate of lung function decline, it can help control reflux symptoms and improve cough intensity. IPF patients should be educated on the importance of balanced nutrition and the potential benefits of screening for lung transplantation. Palliative medicine can help with symptom control and should be considered for all patients regardless severity, but especially in those in the later stages of disease.

Delivering remote pulmonary rehabilitation in Bangladesh: a mixed-method feasibility study

Background

Pulmonary rehabilitation (PR) is an effective and essential component of care for the increasing number of individuals with chronic respiratory diseases (CRDs). Despite the benefits, it remains underutilised and poorly accessible in low- and middle-income countries (LMICs). We aimed to determine the feasibility of delivering PR in Bangladesh at home because of pandemic travel restrictions.

Methods

Aligned with the Medical Research Council framework of development and evaluation of complex interventions, we recruited individuals with CRDs from the Community Respiratory Centre, Khulna, to a mixed-methods feasibility study. We assessed their functional exercise capacity and quality of life before and after an eight-week course of home PR, and conducted semi-structured interviews with PR providers and professional stakeholders by using a topic guide aligned with the normalisation process theory (NPT) and interpreting the findings within its constructs.

Results

We recruited 51 out of 61 referred patients with a range of CRDs, of whom 44 (86%) completed ≥70% of their home PR course. Functional exercise capacity, measured by the endurance shuttle walk test, improved in 78% of patients, with 48% exceeding the minimum clinically important difference (MCID). Health-related quality of life, measured by the Chronic Obstructive Pulmonary Disease Assessment Test, improved by more than the MCID in 83% of patients. Through the interviews, we found that PR providers encountered challenges in remote video supervision due to unstable internet connections, forcing them to resort to telephone calls. The strength of support for NPT constructs varied; many participants understood and appreciated the role of PR and could make sense of the innovation (NPT-1), and most were assessing the potential of a PR service in Bangladesh to decide if it was worthwhile (NPT-4). Participants were not yet ready to endorse or actively support (NPT-2) or operationalise (NPT-3) the roll-out of PR.

Conclusions

A home PR programme, supported by remote supervision and monitoring, is feasible in Bangladesh, but local evidence will be needed to promote implementation.

Peak Eccentric Cycling Exercise and Cardiorespiratory Responses to Normobaric Hypoxia Versus Normobaric Normoxia in Healthy Adults: A Randomized, Controlled Crossover Trial

Background/Objectives: Pulmonary rehabilitation clinics are traditionally located at higher altitudes (HAs), where lower PO2 reduces exercise capacity and blood oxygenation. Eccentric cycling exercise (ECC), with its lower cardiorespiratory demand compared to concentric cycling (CON), might therefore be a potential advantageous training modality at HAs, particularly for individuals with reduced exercise capacity. This study aimed to compare the cardiorespiratory responses of ECC while breathing normoxic versus hypoxic gas in healthy participants. Methods: This randomized, controlled crossover trial involved healthy participants performing CON in normoxia (FiO2 = 0.21), followed by two incremental ECC tests until 70-100% of peak exercise, one with normoxia and one with normobaric hypoxia (FiO2 = 0.15), in a randomized order. Oxygen uptake (V'O2) and additional outcomes were measured breath-by-breath. Endpoints were defined at rest, 50%, 70%, peak exercise, and isotime. The trial is registered on clinicaltrails.gov (NCT05185895). Results: Twelve healthy participants (age: 30 ± 11 years, six females) completed the study. During both interventions, V'O2 increased linearly with exercise intensity, with no significant differences between normoxic and hypoxic conditions. At peak exercise, SpO2 and peak work rate were significantly lowered by 5% (95%CI: 3 to 8%, p < 0.001) and by 22 W (95%CI: 8 to 36 W, p = 0.009) in hypoxia compared to normoxia. Other outcomes were unchanged. When comparing CON to ECC in normoxia, the mean differences in V'O2 increased with higher loads. Conclusions: This study demonstrated that V'O2 and other cardiopulmonary parameters remain unchanged when performing ECC in hypoxia compared to normoxia. Comparing CON to ECC in normoxia, participants achieved higher workloads and greater V'O2 consumption during CON compared to ECC at comparable watts, confirming the higher metabolic cost associated with CON. We identified that the optimal submaximal ECC intensities, with the highest difference in V'O2 between CON versus ECC, are around 40% of peak V'O2.

Exploring the effects of pulmonary rehabilitation and its determinants in lung transplant candidates with cystic fibrosis

BACKGROUND/RATIONALE

Lung transplant (LTx) candidates with cystic fibrosis (CF) have ventilatory and musculoskeletal limitations and benefit from pulmonary rehabilitation (PR). Their training response has not been well characterized. The study aims to: 1) characterize the effect of outpatient PR and 2) evaluate the clinical characteristics associated with their PR response.

METHODS

Single-center retrospective cohort study of CF LTx candidates (July 2009-June 2019) with available pre-transplant exercise data, who participated in PR 2 to 3 times/week until transplantation. Demographics, CF-related characteristics, aerobic and muscle training volumes, and six-minute walk distance (6MWD) were characterized using descriptive statistics, paired t-tests and Spearman correlations to describe relationships between CF-related characteristics and training volumes.

RESULTS

In 86 CF LTx candidates (32 ± 10 years, 49 % males, FEV1: 23 ± 5 %; listing 6MWD 421 ± 89 m), the median PR time was 87 days (24-36 sessions). 78 % had at least one exacerbation and 55 % required hospitalization. 88 % used supplemental oxygen and 37 % required home non-invasive ventilation. Treadmill speed (1.7 ± 0.5 mph); biceps (50 IQR [40-70] lbs∗reps) and quadriceps (30 IQR [30-40] lbs∗reps) training volumes improved with PR (p < 0.05), whereas 6MWD remained unchanged. The presence of ≥1 respiratory exacerbation was associated with a lower progression in treadmill speed [-0.36 mph 95%CI (-0.67 to -0.04), p = 0.028].

CONCLUSION

CF LTx candidates participating in PR increased treadmill speed and muscle training volumes, with preservation of 6MWD. Respiratory exacerbations were prevalent and important determinants of aerobic training.

Prognostic Factors for Responders of Home-Based Pulmonary Rehabilitation-Secondary Analysis of a Randomized Controlled Trial

BACKGROUND

Home-based pulmonary rehabilitation (PR) is an effective alternative to center-based PR. However, not all participants exhibit sufficient therapeutic improvement, highlighting the need to identify appropriate candidates to maximize cost-effectiveness. This study aimed to identify the factors associated with favorable outcomes in home-based PR, focusing on the role of digital therapeutics (DTx).

METHODS

This secondary analysis used data from a randomized controlled trial. Participants with chronic respiratory disease (CRD) were divided into responders and non-responders based on a change in 6 min walk distance (6MWD) and patient-reported outcome measures (PROM) representing dyspnea and health-related quality of life. Factors such as baseline 6MWD, DTx use, and pulmonary function were analyzed for their predictive value in improving 6MWD and PROM scores.

RESULTS

Responders, particularly those using DTx, showed significantly greater improvements in 6MWD than non-responders. Participants with a baseline 6MWD under 500 m demonstrated a higher likelihood of exceeding the minimum clinically important difference in 6MWD. DTx use strongly predicted improvements in both 6MWD and PROM scores. The baseline diffusing capacity of the lungs for carbon monoxide was also a significant factor influencing improvements in the modified Medical Research Council scale.

CONCLUSIONS

Responders to 8-week program of home-based PR exhibited a relatively lower baseline health status. Encouraging participants with poorer baseline health could improve adherence to PR and enhance cost-effectiveness. Additionally, improvements in 6MWD and PROM scores were associated with the use of DTx. Considering the functions of DTx, proper supervision for home-based exercise may be crucial for achieving optimal outcomes.

Pulmonary rehabilitation and functional independence: Impact on survival in patients with fibrotic interstitial lung disease or chronic obstructive pulmonary disease

BACKGROUND

Pulmonary rehabilitation (PR) aims to improve patients' functioning in interstitial lung disease (ILD) and chronic obstructive pulmonary disease (COPD). The impact of change in functional independence during PR on subsequent survival has not been established. We aimed to determine functional independence during PR and its association with survival over three years post-PR.

METHODS

This retrospective cohort study included patients with fibrotic ILD or COPD who participated in a 3-week inpatient PR program. The Functional Independence Measure (FIM) was assessed at PR entry and discharge. Correlations between FIM and demographics, clinical/functional parameters were analyzed. Time from PR to death/lung transplantation/censoring was assessed, stratified by baseline/changes in FIM above/below the median. Multivariable Cox proportional hazard models were used to determine the impact of FIM on mortality risk.

RESULTS

223 patients (76 ILD/147 COPD) were included. Mean ± standard deviation (SD) age was 69 ± 10 for ILD and 67 ± 10 for COPD. FIM total and motor scores improved significantly in both groups. Baseline FIM showed a strong negative and change in 6-min walk distance (6MWD) a strong positive correlation with change in FIM during PR. Each 1-point increase in FIM motor score was associated with a 3 % lower risk of mortality (HR 0.97, 95%CI 0.94-1, p = 0.03).

CONCLUSIONS

Inpatient PR improves functional independence in patients with fibrotic ILD or COPD, and baseline and change in FIM are associated with survival up to three years post-PR. This emphasizes the importance of PR for all patients with chronic lung disease regardless of their initial level of independence.

Feasibility, Usability, and Pilot Efficacy Study of a Software-Enabled, Virtual Pulmonary Rehabilitation with Remote Therapeutic Monitoring

Objective

Fewer than 3% of adults with Chronic Obstructive Pulmonary Disease (COPD) attend in-person, center-based pulmonary rehabilitation (PR) despite demonstrated health benefits and reduction in mortality. This study evaluated the feasibility and usability of a novel home-based, virtual PR (V-PR) intervention compared to center-based PR (C-PR). The virtual PR intervention was supported by remote therapeutic monitoring (V-PR+RTM; Blue Marble Platform, Blue Marble Health, Altadena, CA). Additionally, we collected data on the 6-Minute Walk Test to explore the efficacy of the V-PR compared to C-PR.

Patients and Methods

Adults with stable COPD referred for PR were recruited. The participants self-selected C-PR or V-PR and were provided a 6-8-week personalized exercise and COPD self-management educational program. In addition, weekly phone contacts with the V-PR group were made. Feasibility was measured using qualitative analysis of adherence, reasons for withdrawal, and self-reported barriers to using the software at home. Usability was measured with the System Usability Scale (SUS). Efficacy was evaluated with the 6 minute Walk Test (6MWT) and various functional performance and patient-centered health-related quality of life (HRQoL) questionnaires.

Results

Forty-eight participants were enrolled, and 40 (83.3%) completed the intervention, n=17 in the C-PR group and n=23 in the V-PR group. Four participants from each group withdrew due to reasons related to health issues (appendicitis, thrush, COVID, back pain) or the health status of their spouse, no-shows, and time constraints. Adherence to the exercise dose (3x/week) and educational offerings were >80% in both groups. Participants in the V-PR group scored the software as having high usability. In both groups, 6MWT distance improved significantly, as did scores on the CAT and SGRQ. No adverse events were reported in either group.

Conclusion

A software-enabled virtual PR program with remote therapeutic monitoring is feasible, usable, and effective. It could offer an alternative model that increases PR uptake for those unable or unwilling to attend in-person, center-based PR.

Pulmonary Rehabilitation in Patients with Operable Non-Small Cell Lung Cancer

Lung cancer is the leading cause of cancer-related death worldwide, and patients with operable early-stage NSCLC are typically managed surgically. While effective, surgical resection can significantly impact pulmonary function and quality of life. Pulmonary rehabilitation (PR) is a comprehensive, multimodal approach that is an established cornerstone in the treatment of COPD. It has similarly demonstrated multiple benefits in patients with lung cancer who have undergone lobectomy or resection by improving pulmonary function, increasing exercise tolerance, improving nutritional status, providing psychological support, and enhancing quality of life. Despite this, PR for early-stage operable NSCLC is oftentimes not standardized, and challenges to adherence remain. In this review, we examine the components of PR, the role of PR in pre- and postoperative settings in patients with early-stage NSCLC, implementation strategies for PR, and future directions and challenges of PR in operable NSCLC.

Knowledge, attitudes and practices regarding pulmonary rehabilitation among patients with chronic respiratory diseases: a cross-sectional questionnaire-based study in a tertiary hospital in China

OBJECTIVES

This study aimed to evaluate the knowledge, attitudes and practices (KAP) of patients with chronic respiratory diseases towards pulmonary rehabilitation.

DESIGN

Cross-sectional, web-based questionnaire study.

SETTING

Tertiary healthcare hospital in Taiyuan, Shanxi Province, China.

PARTICIPANTS

A total of 511 patients with chronic respiratory diseases were recruited from the hospital's outpatient and inpatient departments. After data cleaning, 501 valid responses (98.04% valid response rate) were analysed. Participants were aged 18 or older, able to complete the questionnaire independently or with assistance and included individuals from diverse demographic backgrounds.

PRIMARY AND SECONDARY OUTCOME MEASURES

Primary outcomes included KAP scores related to pulmonary rehabilitation. The secondary outcome assessed the association between demographic factors (age, gender, income, education, smoking status) and KAP scores using structural equation modelling (SEM).

RESULTS

The mean KAP scores were 1.26±2.85 for knowledge, 30.46±3.63 for attitudes and 34.58±5.55 for practices. SEM analysis showed that knowledge directly influenced attitudes (β=-0.538, p<0.001) and both knowledge (β=0.668, p<0.001) and attitudes (β=0.668, p<0.001) significantly influenced practices. Additionally, demographic factors, such as monthly household income, type of chronic respiratory disease, educational level and smoking status were significantly associated with variations in KAP scores (all p<0.05).

CONCLUSIONS

Patients demonstrated poor knowledge, generally positive attitudes, and moderate practices regarding pulmonary rehabilitation. Tailored educational interventions focusing on bridging the knowledge gap and promoting positive behavioural changes are essential for improving pulmonary rehabilitation engagement among chronic respiratory disease patients.

TRIAL REGISTRATION NUMBER

ChiCTR2400080271.

Is longer really better? Results of a retrospective real-life cohort study evaluating the benefit of adding a weekly educational session to a traditional 8-week home-based pulmonary rehabilitation programme in people with COPD

OBJECTIVES

To evaluate the short-term and long-term benefits of adding a weekly educational session to a traditional 8-week home-based pulmonary rehabilitation (PR) programme in people with chronic obstructive pulmonary disease (COPD). Primary hypothesis was that 8 home-based supervised sessions will be equivalent to 16 home-based supervised sessions at both short- and long-term after PR.

DESIGN

Retrospective cohort study conducted on prospectively collected real-life data, from January 2010 to December 2021.

SETTING

FormAction Santé, Pérenchies France.

PARTICIPANTS

Eligible individuals were aged >18 years with a diagnosis of COPD and referred to the home-based PR programme by their respiratory physician. Participants were retrospectively divided into two groups (Gr 1, 8 PR sessions, n=759, and Gr 2, 8 PR sessions+8 educational sessions, n=262).

INTERVENTION

All participants received an 8-week personalised home PR programme. A subgroup of participants received one additional supervised home session per week, including education and motivational support for daily physical activities and walking.

OUTCOMES

Health-related quality of life, dyspnoea, anxiety and depressive symptoms, fatigue and exercise tolerance were assessed at baseline (M0), at the end of PR (M2), and 14 months (M14) after M0.

RESULTS

Baseline characteristics and assessments were similar between groups with an exception for long-term oxygen therapy (Gr1: 69.8% vs Gr2 53.0%, p<0.001) and noninvasive ventilation (Gr1: 38.6% vs Gr2: 29.8%, p=0.015). At M2 and M14, all the assessments were improved in both groups (p<0.01). At M2, the improvement in health status and exercise tolerance was higher in Gr 2 compared with Gr 1 (p<0.05). From M0 to M14, 90 (11.9%) participants and 29 (11.1%) participants died in Gr 1 and Gr 2, respectively (p=0.794).

CONCLUSION

People with COPD benefited, at short and long terms, from both 8 or 16 supervised home-based PR sessions. Once-weekly home-based supervised sessions during 8 weeks, combined with unsupervised physical training sessions and self-management plan for the other health behaviours, might be the best compromise between patients, health professionals and policy makers.

Supervised pulmonary tele-rehabilitation and individualized home-based pulmonary rehabilitation for patients with COPD, unable to participate in center-based programs. The protocol for a multicenter randomized controlled trial - the REPORT study

INTRODUCTION

Chronic obstructive pulmonary disease (COPD) costs EURO 1.4 billion annually in healthcare costs. Pulmonary rehabilitation (PR) is a vital aspect of care for patients with COPD, but despite the compelling evidence, it is delivered to less than 30%. Frequent transport to the center-based program is regularly reported as reasons for non-attendance. The effectiveness and feasibility of pulmonary tele-rehabilitation (PTR) and home-based pulmonary rehabilitation (HPR) have never been investigated in patients with COPD who are unable to attend conventional outpatient PR.

MATERIALS AND METHODS

This study is a multicenter randomized controlled trial consisting of three parallel groups; PTR, HPR and a control group. 180 patients with moderate to very severe COPD, who are unable to attend in center-based PR programs will be included. The PTR group receives group-based resistance- and endurance training and patient education 60 min. twice a week for 10-weeks. HPR comprises an individual self-initiated home-based PR program with online motivational and professional counseling. The goal is to achieve at least 20 min. of muscle-endurance based exercises three days weekly for 10-weeks. The PTR and HPR group use a tablet with a conference system. The control group receives usual care (no PR). After completion of the intervention, the PTR and HPR groups are offered 65-weeks groupbased maintance program supervised once a week online via tablet. The primary outcome is change in respiratory symptoms measured with the COPD Assessment Test after 10-weeks (primary endpoint).

DISCUSSION

The study aims to test a possible equivalence between PTR and HPR and their superiority to controls on respiratory symptoms. The study will provide valuable insights into the effectiveness of new rehabilitation models and maintenance programs for patients with COPD. If the two new delivery models can reduce respiratory symptoms, patients with moderate to very severe COPD can participate in both home- or centerbased PR.

TRIAL REGISTRATION

The trial is registrered and approved by the Ethics Committee of The Capital Region of Denmark (H-22015777; 29.08.2022) and the Danish Data Protection Agency (P-2022-245-13101, 25.05.2022). The trial is registrered at ClinicalTrials.gov, identifier: NCT05664945 (23.12.2022).

Content, uptake and adherence of exercise interventions after an acute exacerbation of COPD: a scoping review

INTRODUCTION

Pulmonary rehabilitation is underutilised in patients after an acute exacerbation of COPD (AECOPD). Retrieving information regarding the setting, training modalities and the uptake and adherence to exercise interventions for these individuals in a vulnerable state could potentially guide future research.

AIM

To provide a comprehensive review of the existing literature on the content, uptake and adherence of different exercise interventions for patients after an AECOPD.

METHODS

Eight different databases were searched for 1) patients experiencing an AECOPD and 2) performing any form of exercise intervention. Information on content, uptake and adherence was collected and the Consensus on Exercise Reporting Template (CERT) checklist was performed for each included record.

RESULTS

59 distinct interventions were identified between 1998 and 2023 including a total of 9238 patients. All studies included patients requiring hospitalisation for the AECOPD, four studies additionally included patients not requiring hospitalisation for the AECOPD. Nine different settings were identified, with the majority of studies conducted in an inpatient setting (n=26) and including whole-body and strength exercises. The overall uptake was mentioned in 38 (62%) studies and was 70% with a 13% dropout rate. No paper reported the full CERT checklist. Adherence was defined a priori in 16 (27%) studies, with the most common definition being attendance of >80% of sessions.

CONCLUSION

Studies properly reporting on the uptake and adherence of well-described interventions, including information regarding fidelity, are needed to further investigate suitable programmes for patients experiencing an AECOPD.

Characteristics of rehabilitation programs for chronic respiratory diseases in Asia: A scoping review

The rates of chronic respiratory disease (CRD) is rising in Asia. Pulmonary rehabilitation (PR) has been shown to be a highly efficacious intervention for people with CRD. While PR models are well established in Western countries, environmental, cultural and societal factors may influence how rehabilitation programs for people with CRD are conducted in Asia. This review aims to identify the characteristics of rehabilitation programs for people with CRD within Asia and identify differences between these rehabilitation programs to the recently updated American Thoracic Society (ATS) PR guidelines. Utilising the PRISMA scoping review guidelines, five databases- CINAHL, Medline, Embase, Web of Science and Health and Medical Collection were searched from inception until 13th December 2023. A total of 137 studies (n = 19,128) were included in the review. As many as 113 studies (83 %) included aerobic exercises as part of rehabilitation, only 90 studies (66 %) included resistance training. Thirty-nine studies included interventions such as Tai Chi, Qigong and Yoga. Comparing to the 2023 ATS PR guidelines, only 22 % of the included studies evaluated a rehabilitation program that was consistent with the guidelines. Improvement in exercise capacity (76 %) and quality of life (QOL) (73 %) were the most frequent outcomes used to evaluate program efficacy. The results suggest that models of rehabilitation varied greatly within the Asia region, with some more heavily adapted to suit the local context as compared to others. Further consideration on how to balance adaptation of PR with fidelity of the intervention needs to be taken.

Exercise Training in Patients with Chronic Thromboembolic Pulmonary Hypertension and Pulmonary Arterial Hypertension: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Of the 5 randomized controlled trials (RCTs) included, chronic thromboembolic pulmonary hypertension (CTEPH) patients constituted 20% of the overall pulmonary hypertension (PH) patient population. We did not find any RCTs that evaluated the role of exercise training in patients with CTEPH. The results of this study indicate that exercise training may be effective at improving exercise capacity, as measured by 6-min walk distance, in patients with PH. Another notable finding from this analysis is the lack of adverse events associated with exercise training, suggesting that contrary to widespread perception, exercise training is safe in CTEPH and PAH patients.

Current perspectives on the rehabilitation of COPD patients with comorbidities

INTRODUCTION

Chronic obstructive pulmonary disease (COPD) is frequently accompanied by a variety of comorbidities, complicating management and rehabilitation efforts. Understanding this interplay is crucial for optimizing patient outcomes.

AREAS COVERED

This review, based on the MEDLINE, Embase and Cochrane Library databases, summarizes the main research on the rehabilitation of patients with COPD, with an emphasis on relevant comorbidities, such as cardiovascular diseases, pulmonary hypertension, lung cancer, metabolic, musculoskeletal, and gastrointestinal disorders. anxiety/depression and cognitive disorders. The study highlights the importance of pre-participation assessments, ongoing monitoring and personalized rehabilitation programs. A review includes a comprehensive literature search to assess the scientific evidence on these interventions and their impact.

EXPERT OPINION

The integration of cardiorespiratory rehabilitation program is essential for improving physical capacity and quality of life in COPD patients with comorbidities. While existing studies highlight positive outcomes, challenges such as interdisciplinary collaboration and access to rehabilitation services remain. Future strategies must prioritize personalized and integrated approaches programs combining pharmacological optimization and a close monitoring during cardiopulmonary rehabilitation to significantly reduce hospital readmissions and mortality, even in patients with complex multimorbidities. Continued research is necessary to refine rehabilitation protocols and better understand the complexities of managing COPD alongside cardiac conditions.

The Saudi Thoracic Society Evidence-based guidelines for the diagnosis and management of chronic obstructive pulmonary disease

The Saudi Thoracic Society (STS) developed an updated evidence-based guideline for diagnosing and managing chronic obstructive pulmonary disease (COPD) in Saudi Arabia. This guideline aims to provide a comprehensive and unbiased review of current evidence for assessing, diagnosing, and treating COPD. While epidemiological data on COPD in Saudi Arabia are limited, the STS panel believes that the prevalence is increasing due to rising rates of tobacco smoking. The key objectives of the guidelines are to facilitate accurate diagnosis of COPD, identify the risk for COPD exacerbations, and provide recommendations for relieving and reducing COPD symptoms in stable patients and during exacerbations. A unique aspect of this guideline is its simplified, practical approach to classifying patients into three classes based on symptom severity using the COPD Assessment Test and the risk of exacerbations and hospitalizations. The guideline provides the reader with an executive summary of recommended COPD treatments based on the best available evidence and also addresses other major aspects of COPD management and comorbidities. This guideline is primarily intended for use by internists and general practitioners in Saudi Arabia.

Pulmonary rehabilitation healthcare professionals understanding and experiences of the protected characteristics of service users: A qualitative analysis

BACKGROUND

Health inequalities can affect access and uptake to pulmonary rehabilitation (PR). An individual's protected characteristics (age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex and sexual orientation) may contribute to health inequalities. Healthcare professionals (HCPs) experiences of the inclusivity and representativeness of PR services and knowledge of protected characteristics are unknown, however are vital for the identification and resolution of health inequalities. This qualitative study explored HCPs understanding of protected characteristics and their perception of the inclusivity, representativeness and equitable benefit of their PR services.

METHODS

Semi-structured qualitative interviews were conducted in person or via videoconferencing with HCPs involved in PR from two healthcare providers. Interviews were analysed using reflexive thematic analysis.

RESULTS

12 interviews were conducted with physiotherapists (n = 6), occupational therapists (n = 2), nurses (n = 2) and exercise physiologists (n = 2). Participants had a median (IRQ) age of 43 (13) and 75% (n = 9) were female. Four themes were generated. 1: 'I don't really know as much as I should' [about protected characteristics]; 2: It's uncomfortable collecting protected characteristics…; 3: 'I don't think [service users] are as representative as they could be'; 4: A conventional rehabilitation programme does not meet the needs of all.

CONCLUSIONS

This study highlighted several challenges in HCPs understanding of protected characteristics and the representativeness of PR that must be addressed to ensure equity. Strategies, to understand barriers in accessing PR that limit representativeness should be explored.

Current status of pulmonary rehabilitation and impact on prognosis of patients with idiopathic pulmonary fibrosis in South Korea

Background

The benefits of pulmonary rehabilitation (PR) for patients with idiopathic pulmonary fibrosis (IPF) have been limited to improving dyspnea, exercise capacity, and quality of life (QoL). This study aimed to assess the current status of PR and its effect on prognosis.

Methods

The Nationwide Korean Health Insurance Review and Assessment Service (HIRA) database was used in this study. Annual PR implementation rate since 2016 following its coverage in the health insurance was analyzed. IPF cases were defined using the International Classification of Diseases 10th Revision (ICD-10) codes and rare intractable diseases (RID) codes. Risk of acute exacerbation (AE) and mortality of IPF patients with or without PR were analyzed.

Results

Of the 4,228 patients with IPF, only 205 (4.85%) received PR. Patients in the PR group were more frequently treated with pirfenidone and systemic steroids than non-PR group. In patients treated with steroids, mortality risk increased regardless of PR application, with hazard ratio (HR) of 1.63 [95% confidence interval (CI): 1.26-2.10, P<0.001] in the PR group and 1.38 (95% CI: 1.21-1.57, P<0.001) in the non-PR group, compared to those not treated with steroids. Additionally, PR did not significant affect mortality risk in patients not receiving steroids (HR, 1.49, 95% CI: 0.87-2.54, P=0.15). Similar patterns were seen for the risk of AE.

Conclusions

PR was applied in only a minority of patients with IPF. It did not succeed in reducing the risk of AE or mortality. A prospective study targeting early-stage patients is needed to evaluate the impact of PR considering the progressive nature of IPF disease itself.

Measurement properties of the sit-to-stand test in people with chronic obstructive pulmonary disease: Protocol for a systematic review and meta-analysis using the COSMIN guidelines

INTRODUCTION

Characteristics of chronic obstructive pulmonary disease (COPD) can include shortness of breath, chronic cough, sputum production and reduced exercise capacity. The sit-to-stand (STS) test variations (e.g., 5-repetition STS, 30-second STS) may be appropriate outcome measures to assess exercise capacity in people with COPD. To date, the measurement properties of the various STS tests in people with COPD have not been synthesized in a systematic review since the publication of the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) guidelines. The purpose of this proposed systematic review is to synthesize the literature of the measurement properties of the STS test variations among people with COPD.

MATERIALS AND METHODS

The review will be conducted with methods consistent with the COSMIN guidelines. Peer-reviewed publications will be included if they assessed the measurement properties (reliability, validity, responsiveness) of a STS test in community-dwelling adults with COPD. We will search six databases from inception. Study selection and data extraction will be conducted independently and in duplicate. We will assess the risk of bias using the COSMIN Risk of Bias tool, assess results against the COSMIN updated criteria for good measurement properties, and summarize certainty of evidence using the modified Grading of Recommendations Assessment, Development and Evaluation (GRADE) tool. Study results will be pooled by calculating weighted means and 95% confidence intervals or summarized narratively, as appropriate.

CONCLUSION

This will be the first systematic review to synthesize the measurement properties of the STS tests in people with COPD using the methods recommended by COSMIN. Consequently, its results will be robust and may help clinicians or researchers identify the best variation of the STS test to use in their practice.

Pulmonary rehabilitation in connective tissue disease-associated interstitial lung disease: A systematic review

BACKGROUND AND AIM

 Interstitial lung disease (ILD) is the major contributor to mortality in between chronic lung diseases. ILD originates from voluminous pathophysiological factors. One of the reasons is connective tissue diseases (CTD). According to experts, patients with CTD-ILD may have a stable disease activity and not need conventional treatment. Also, with pulmonary rehabilitation (PR), these patients may benefit from improving clinical outcomes and regression in mortality. However, the characteristics of these patients and whether they have stable disease activity in practice are not known.

METHODS

 The systematic review was performed via the AI-powered tool with six databases to conduct literature research. The methodologic quality of the studies, risk of bias, and level of evidence were assessed.

RESULTS

According to the final four included studies PR benefit moderate levels of evidence for lung functions and diffusion capacity, functional capacity, quality of life, dyspnea severity, and fatigue level. However, there was limited evidence for respiratory, and peripheral muscle strength for CTD-ILD patients.

CONCLUSIONS

The literature shows that the use of PR for CTD-ILDs wasn't widespread. Our findings suggest that PR can be used in CTD-ILDs to recover clinical parameters like, lung functions, quality of life, dyspnea severity, and fatigue level. More comprehensive studies should be conducted to reveal the effect of the PR in the evidence-based frame.

Clinical Course of Interstitial Lung Disease in Patients With Rheumatoid Arthritis

Interstitial lung disease (ILD) is a frequent manifestation of rheumatoid arthritis (RA) that is associated with high mortality. RA-ILD may initially be asymptomatic, and lung function may be markedly impaired by the time it is diagnosed. The course of RA-ILD is highly variable, with some patients experiencing no discernable progression or a slow decline, whereas others experience more rapid deterioration. Some patients develop progressive pulmonary fibrosis, which is associated with high mortality. Although risk factors for the progression of RA-ILD have been identified, including older age, worse lung function, and a usual interstitial pneumonia pattern on high-resolution computed tomography, it is not possible to predict the course of RA-ILD in an individual patient. The association between RA disease activity and progression of RA-ILD remains unclear. Regular monitoring is important to enable the prompt identification of progression and early intervention to preserve lung function. The management of RA-ILD requires a multidisciplinary and individualized approach, taking account of the severity and progression of articular and lung disease, risk factors for the progression of RA-ILD, and the patient's preferences, and may include immunosuppression, antifibrotic therapy, and supportive care.

Advances in the awareness of tuberculosis-associated chronic obstructive pulmonary disease

Tuberculosis (TB) significantly increases the risk of developing chronic obstructive pulmonary disease (COPD), positioning TB-associated COPD (TB-COPD) as a distinct category within the spectrum of respiratory diseases prevalent, especially in low- and middle-income countries. This condition results from the body's immune response to TB, leading to prolonged inflammation and consequent persistent lung damage. Diagnostic approaches, particularly post-bronchodilator spirometry, are vital for identifying airflow obstruction and confirming TB-COPD. Furthermore, exploring potential biomarkers is crucial for a deeper insight into the pathogenesis of TB-COPD and the improvement of treatment strategies. Currently, this condition is primarily managed using inhaled bronchodilators, with cautious use of inhaled corticosteroids advised owing to the increased risk of developing TB. This review delves into the epidemiology, clinical manifestations, pulmonary function, and imaging characteristics of TB-COPD, scrutinizing current and prospective biomarkers and therapeutic strategies. Furthermore, it underscores the necessity for focused research to bridge the knowledge and treatment gaps in this complex condition.

Characterizing pulmonary rehabilitation referrals from primary care

BACKGROUND

Supporting referral to pulmonary rehabilitation (PR) from primary care for people with chronic lung disease could improve equity of access. Understanding who is referred to PR from primary care, and by whom, could inform development of strategies to increase awareness of and referral to PR for people with chronic respiratory disease. We aimed to quantify the proportion of patients referred to PR from primary care in an Australian metropolitan setting; and to identify characteristic features of patients and referrers.

METHODS

A retrospective, single-site, audit of referrals was undertaken. Corresponding patient medical records were reviewed for referral details, patient demographics and baseline PR assessment measures.

RESULTS

Between January 2020 and December 2023 658 referrals to PR were received of which 6.2 % (n = 41) originated from a primary care source (98 % general practice; 2 % allied health). People referred to PR from primary care were typically diagnosed with COPD (71 %), were female (59 %), had moderate disease severity (mean(SD) forced expiratory volume in 1 s 70(26) %predicted) and had mild symptoms (53 % modified Medical Research Council dyspnoea score 0 or 1) and modest functional impairment (6-min walk distance 410(121) meters). Just 4 of 36 primary care practitioners referred more than one patient.

CONCLUSION

In this audit the proportion of people referred to PR from primary care was very low. Processes to support the referral of more patients from primary care to PR, across the spectrum of chronic respiratory disease, remain a priority for improving access to this well-established treatment.

Pulmonary Rehabilitation for Diseases Other Than COPD

Review the current literature regarding pulmonary rehabilitation (PR) for non-chronic obstructive pulmonary disease (COPD) diagnoses and what the evidence is regarding expected outcomes based on disease manifestations. Literature search was performed using PubMed database from March 2024 to June 2024. Terms included "pulmonary rehabilitation" and "exercise training" in conjunction with key words "interstitial lung disease (ILD)," "idiopathic pulmonary fibrosis," "asthma," "bronchiectasis," "post-acute sequalae of SARS-CoV-2 (PASC)," "long COVID," "pulmonary hypertension (PH)," and "lung cancer." Results were filtered for English language, randomized controlled trial, clinical trial, observational trial, meta-analysis, and guidelines. Emphasis was placed on more recent publications since prior reviews, where applicable. The abundance of literature involved ILD, where studies have demonstrated significant improvements in exercise capacity, health-related quality of life (HRQoL), and dyspnea, despite heterogeneity of diseases; benefits are similar to those seen with COPD. Those with milder disease have more sustained benefits longer term. Patients with asthma benefit in severe disease, lower exercise activity, elevated body mass index, or when comorbid conditions are present, and breathing exercises can improve symptoms of breathlessness. Patients with PASC have a multitude of symptoms and lack benefits in HRQoL measurements; PR improves performance on post-COVID-19 functional status scale, a more comprehensive measurement of symptoms. Those with bronchiectasis benefit from PR when airflow limitation or exacerbations are impacting symptoms and HRQoL. Those with stable PH can improve their exertional capacity without change in disease severity. PR reduces perioperative complications in those with lung cancer and preserve fitness during treatment.

Research Priorities in Pulmonary Rehabilitation: The Urgent Need to Increase the Portfolio of Rehabilitation Options for Chronic Lung Disease

Pulmonary rehabilitation (PR) plays a crucial role in improving outcomes for individuals with chronic respiratory diseases. The most outstanding challenge in PR is the low referral, uptake, and adherence that is dramatically low in the post-hospitalization period in rural, minority, and low-income populations. Research efforts to increase the portfolio of PR through the testing and implementation of new and effective options for home-based and community-based programs are potential research targets. Other potential foci of research efforts are the pursuit of behavior-change techniques to achieve a lifestyle change during PR and the referral process to increase uptake and adherence rates. Creating new rehabilitation options for chronic lung disease that can reach more people may require expanding the definition of PR for chronic lung disease to one more flexible and perhaps concordant with the World Health Organization's definition of rehabilitation as "a set of interventions designed to optimize functioning and reduce disability in individuals with health conditions in interaction with their environment." While efforts to augment access to conventional PR are warranted, it is time to devote research efforts to reach many more individuals with chronic lung disease, particularly minorities, rural, and low-income individuals that currently have no access to any rehabilitation, a social injustice that requires action. This manuscript outlines suggested future directions in rehabilitation research with the pursuit of evidence to support feasible and effective programs that may increase the rehabilitation portfolio to accommodate most individuals with chronic lung disease.

Unsupervised Exercise in Interstitial Lung Disease: A Delphi Study to Develop a Consensus Preparticipation Screening Tool for Lymphangioleiomyomatosis

BACKGROUND

Little research is available to provide practical guidance to health care providers for exercise preparticipation screening and referral of patients with interstitial lung diseases (ILDs), including lymphangioleiomyomatosis (LAM), to participate in remote, unsupervised exercise programs.

RESEARCH QUESTION

What exercise preparticipation screening steps are essential to determine whether a patient with LAM is medically appropriate to participate in a remote, unsupervised exercise program?

STUDY DESIGN AND METHODS

Sixteen experts in LAM and ILD participated in a two-round modified Delphi study, ranking their level of agreement for 10 statements related to unsupervised exercise training in LAM, with an a priori definition of consensus. Additionally, 60 patients with LAM completed a survey of the perceived risks and benefits of remote exercise training in LAM.

RESULTS

Seven of the 10 statements reached consensus among experts. Experts agreed that an in-person clinical exercise test is indicated to screen for exercise-induced hypoxemia and prescribe supplemental oxygen therapy as indicated prior to initiating a remote exercise program. Patients with recent pneumothorax should wait to start an exercise program for at least 4 weeks until after resolution of pneumothorax and clearance by a physician. Patients with high cardiovascular risk for event during exercise, severe resting pulmonary hypertension, or risk for falls may be more appropriate for referral to a rehabilitation center. A LAM-specific remote exercise preparticipation screening tool was developed from the consensus statements and agreed upon by the panelists.

INTERPRETATION

A modified Delphi study approach was useful to develop disease-specific recommendations for safety and preparticipation screening prior to unsupervised, remotely administered exercise in LAM. The primary product of this study is a clinical decision aid for providers to use when medically screening patients prior to participation in the newly launched LAMFit remote exercise program.

Alternative Modes of Delivery in Pulmonary Rehabilitation: A Critical Appraisal of the Literature

PURPOSE

This review presents an overview of the safety and efficacy of alternative modes of pulmonary rehabilitation (PR) in people with chronic obstructive pulmonary disease (COPD).

REVIEW METHODS

We identified recently published systematic reviews, meta-analyses, and guidelines, as well as relevant studies, exploring the safety and effectiveness of community-based PR, home-based PR, telerehabilitation, and web-based rehabilitation in people with COPD. A narrative summary of the main findings is presented.

SUMMARY

Although evidence suggests that community-based PR, home-based PR, telerehabilitation, and web-based rehabilitation are effective alternatives to center-based PR, it requires a careful interpretation as several of these programs do not comply with PR definition and have been compared with center-based PR programs that do not reach the minimal clinically important differences. Moreover, there is a huge heterogeneity among programs, and the confidence and quality of the evidence is mostly low. Hence, these novel modes of PR and center-based PR are not interchangeable. Instead, these are alternative modes aiming to increase access to PR. Questions remain regarding the most efficient way of implementing each PR mode, level of access, reimbursement policies, and data privacy in the use of technology. Standard protocols on how to set up each alternative PR mode need to be developed. Future research needs to explore how to use the treatable traits approach in combination with individual preferences and needs, program availability, safety, social support network, digital literacy, and health system context to identify the optimal PR program for each patient.

The Obesity Paradox in Pulmonary Rehabilitation: Relevance and Implications to Clinical Practice

Pulmonary rehabilitation (PR) increases exercise capacity, reduces dyspnea, and improves quality of life (QoL) in patients with chronic obstructive pulmonary disease (COPD). Patients requiring PR can present with multiple comorbidities. One of the most common comorbidities is obesity. The prevalence of obesity in patients with COPD is increasing at an alarming rate. To date the efficacy of PR to ameliorate obesity in patients with COPD is unclear. Obesity in patients with COPD is associated with increased morbidity and mortality compared to patients without obesity. However, the benefits of obesity paradox in lower mortality rate health-related QoL and health care utilization remain unclear. This review discusses the challenges of prescribing PR to patients with obesity and COPD. In addition, the definition of and the potential challenges and benefits of the obesity paradox in patients with COPD will be discussed. Treatment strategies that include combining PR with lifestyle management, individually tailored nutritional advice, pharmacotherapy, and surgery need to be tested in prospective, randomized controlled trials. The challenges of providing complex care, prioritizing patient needs, and future directions will also be discussed for patients with obesity and COPD.

Pulmonary rehabilitation in lung transplant candidates with pulmonary arterial hypertension

BACKGROUND

Pulmonary rehabilitation (PR) guidelines support the efficacy and safety of supervised exercise training in mild-moderate pulmonary arterial hypertension (PAH). However, the exercise training response and safety of PR in PAH lung transplant (LTx) candidates has not been described.

OBJECTIVES

(1) characterize the clinical characteristics and illness trajectory of adult patients with severe PAH listed for LTx and participating in PR; (2) evaluate the change in exercise capacity, aerobic and resistance training volumes; (3) assess PR safety.

METHODS

Single-centre retrospective cohort study of PAH LTx candidates listed January 2014-December 2018 attending a supervised, facility-based outpatient program three times per week. Functional capacity was evaluated using 6-min walk distance (6MWD). Aerobic and muscle training volumes were evaluated with paired comparisons.

RESULTS

40 PAH LTx candidates (age 50 ± 12 years, 73% females, mean pulmonary artery pressure 53 ± 16 mmHg) were included. The median listing duration was 91 [IQR 43-232] days. Sixteen patients (40%) had ≥1 admission pre-transplant. Nine patients (56%) were discharged home and resumed outpatient PR. Baseline 6MWD was 330 ± 119 metres (n = 40) with the final 6MWD pre-LTx increasing by 18 metres 95% CI (-18 to 56), p-value = 0.31, n = 25) over a median duration of 225 [IQR 70-311] days. Modest gains were observed in aerobic and resistance training volumes in PR with no adverse safety events.

CONCLUSION

Despite progressive and severe disease in PAH LTx candidates, patients safely participated in PR and maintained exercise capacity. Given frequent admissions, physiotherapy during hospitalization should focus on preserving functional capacity and facilitating re-integration into outpatient PR post-discharge.

New Protocol for Evaluating Maximum Inspiratory Pressure: Concurrent Validity and Test-Retest Reliability

OBJECTIVE

The purpose of this study was to validate a maximum inspiratory pressure (MIP) test protocol based on the principles of the 1-repetition maximum (1RM) test, assess its test-retest reliability, and establish minimal detectable change (MDC) in individuals with chronic obstructive pulmonary disease (COPD).

METHODS

Forty-nine individuals with COPD were included in the study, of whom 44 individuals attended 2 appointments separated by 7 to 10 days for test-retest reliability. The MIP test was performed using a threshold valve device (1RM-based protocol) and the digital manometer (reference test). The 1RM-based protocol consisted of an incremental phase (inspiratory load increase [10 cm H2O] to achieve respiratory failure) and an approach phase (load halfway between the lowest failed attempt and the last valid attempt was prescribed).

RESULTS

The concurrent validity of the 1RM-based protocol for the MIP test was good with respect to the reference test (day 1, intraclass correlation coefficient [ICC] = 0.81; day 2, ICC = 0.85). The test-retest reliability was excellent (ICC = 0.92), with a standard error of measurement of 6.3 cm H2O and a MDC of 17.5 cm H2O.

CONCLUSION

This study validated a new 1RM-based protocol for the MIP test using an inspiratory muscle training (IMT) device in individuals with COPD, showing good concurrent validity compared with the reference test, as well as excellent test-retest reliability. The MDC reported can be interpreted and applied in the clinical setting.

IMPACT

There was a need for developing new, inexpensive, simple, and feasible methods for the MIP test. The validation of the 1RM-based protocol addresses this issue, allowing for the appropriate prescription of IMT, favoring its widespread use in people with COPD, and therefore improving their physical therapist care.

Cost-Utility Analysis of Supervised Inspiratory Muscle Training Added to Post-COVID Rehabilitation Program in the Public Health System of Brazil

OBJECTIVES

This study aims to provide model-based cost-utility estimates for the addition of inspiratory muscle training (IMT) in COVID-19 pulmonary rehabilitation (PR).

METHODS

A cohort model comparing IMT with PR (intervention group) to IMT with only PR (control group) was used. The payer perspective from the Unified Health System in Brazil was adopted. Effectiveness parameters: Effectiveness was measured in quality-adjusted life years (QALYs). Probabilistic sensitivity analyses were performed using 1000 Monte Carlo simulations. A beta probability distribution was assumed for utilities, and a gamma distribution was applied to the costs. A cost-effectiveness threshold of BRL 40.000/QALYs was applied.

RESULTS

As the threshold of BRL 40.000/QALYs, we obtained 512 (51.2%) simulations that can be considered cost-effective to IMT added in PR programs. IMT added in PR treatment was more expensive (USD 317.73 versus USD 293.93) and more effective (incremental utility of 0.03 to INT group) than PR alone. The incremental cost-effectiveness ratio (ICER) was 793.93 USD/QALY.

CONCLUSIONS

IMT added to PR is a cost-effective alternative compared with PR for post-COVID-19 patients. This strategy may result in net cost savings and improvements in the QALYs for these patients.

Immune system benefits of pulmonary rehabilitation in chronic obstructive pulmonary disease

Chronic obstructive pulmonary disease (COPD) is a respiratory disease characterized by pulmonary and systemic inflammation. Inflammatory mediators show relationships with shortness of breath, exercise intolerance and health related quality of life. Pulmonary rehabilitation (PR), a comprehensive education and exercise training programme, is the most effective therapy for COPD and is associated with reduced exacerbation and hospitalization rates and increased survival. Exercise training, the primary physiological intervention within PR, is known to exert a beneficial anti-inflammatory effect in health and chronic diseases. The question of this review article is whether exercise training can also make such a beneficial anti-inflammatory effect in COPD. Experimental studies using smoke exposure mice models suggest that the response of the immune system to exercise training is favourably anti-inflammatory. However, the evidence about the response of most known inflammatory mediators (C-reactive protein, tumour necrosis factor α, interleukin 6, interleukin 10) to exercise training in COPD patients is inconsistent, making it difficult to conclude whether regular exercise training has an anti-inflammatory effect in COPD. It is also unclear whether COPD patients with more persistent inflammation are a subgroup that would benefit more from hypothesized immunomodulatory effects of exercise training (i.e., personalized treatment). Nevertheless, it seems that PR combined with maintenance exercise training (i.e., lifestyle change) might be more beneficial in controlling inflammation and slowing disease progress in COPD patients, specifically in those with early stages of disease.

Current State of Connected Sensor Technologies Used During Rehabilitation Care: Protocol for a Scoping Review

BACKGROUND

Connected sensor technologies can capture raw data and analyze them using advanced statistical methods such as machine learning or artificial intelligence to generate interpretable behavioral or physiological outcomes. Previous research conducted on connected sensor technologies has focused on design, development, and validation. Published review studies have either summarized general technological solutions to address specific behaviors such as physical activity or focused on remote monitoring solutions in specific patient populations.

OBJECTIVE

This study aimed to map research that focused on using connected sensor technologies to augment rehabilitation services by informing care decisions.

METHODS

The Population, Concept, and Context framework will be used to define inclusion criteria. Relevant articles published between 2008 to the present will be included if (1) the study enrolled adults (population), (2) the intervention used at least one connected sensor technology and involved data transfer to a clinician so that the data could be used to inform the intervention (concept), and (3) the intervention was within the scope of rehabilitation (context). An initial search strategy will be built in Embase; peer reviewed; and then translated to Ovid MEDLINE ALL, Web of Science Core Collection, and CINAHL. Duplicates will be removed prior to screening articles for inclusion. Two independent reviewers will screen articles in 2 stages: title/abstract and full text. Discrepancies will be resolved through group discussion. Data from eligible articles relevant to population, concept, and context will be extracted. Descriptive statistics will be used to report findings, and relevant outcomes will include the type and frequency of connected sensor used and method of data sharing. Additional details will be narratively summarized and displayed in tables and figures. Key partners will review results to enhance interpretation and trustworthiness.

RESULTS

We conducted initial searches to refine the search strategy in February 2024. The results of this scoping review are expected in October 2024.

CONCLUSIONS

Results from the scoping review will identify critical areas of inquiry to advance the field of technology-augmented rehabilitation. Results will also support the development of a longitudinal model to support long-term health outcomes.

TRIAL REGISTRATION

Open Science Framework jys53; https://osf.io/jys53.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/60496.

Effectiveness of Combined Pulmonary Rehabilitation and Progressive Muscle Relaxation in Treating Long-Term COVID-19 Symptoms: A Randomized Controlled Trial

Background: The aim of this study was to investigate the effects of pulmonary rehabilitation (PR) and additional progressive muscle relaxation (PMR) techniques in patients with long-term COVID-19 symptoms. Methods: We included 61 patients with long COVID-19 symptoms and randomly assigned them to two groups: PR only (group 1 with 30 subjects) and PR with PMR (group 2 with 31 subjects). The PR program consisted of gradual aerobic conditioning, strength training, and breathing exercises. Group 2 received additional 20 min daily sessions of progressive muscle relaxation techniques. Results: Following a 21-day intervention, it was observed that both groups had noteworthy improvements in lung function, exercise capacity, and sleep quality with statistical significance (p < 0.0001). Group 2 showed significant improvements in overall health (as measured by the General Health Questionnaire-12), patient health (as assessed by the Patient Health Questionnaire-9), general anxiety levels (as indicated by the Generalized Anxiety Disorders Scale-7), and sleep quality (as measured by the Pittsburgh Sleep Quality Index), with statistical significance (p < 0.0001), compared to group 1. Moreover, the statistical analysis demonstrated no significant difference in exercise capacity improvement between group 1 and group 2, as indicated by a p-value of 0.1711. Conclusions: The addition of progressive muscle relaxation to pulmonary rehabilitation significantly enhances mental health outcomes, particularly in reducing anxiety and improving sleep quality, for patients with long-term COVID-19 symptoms. These findings suggest that incorporating PMR into PR programs offers a valuable non-pharmacological approach to improving overall patient well-being during long-term COVID-19 recovery.

Referral to pulmonary rehabilitation and palliative care services in people with idiopathic pulmonary fibrosis in England, 2010-2019

The benefits of pulmonary rehabilitation (PR) and palliative care (PC) as non-pharmacological therapies for people with idiopathic pulmonary fibrosis (IPF) are increasingly being recognised but in the UK the proportion of people with this life-limiting condition who are referred to such services is thought to be low. This retrospective cohort study aimed to describe trends in referrals to PR and PC services among people with IPF over a 10-year period and to identify factors associated with non-referral. Our study cohort was drawn from the UK's pseudonymised Clinical Practice Research Datalink (CPRD) Aurum primary care database and comprised 17,071 individuals diagnosed with IPF between 2010 and 2019. While 12.0% of IPF patients were offered a referral to PR, less than 2% completed a PR programme. Around a fifth (19.4%) received a referral to generic PC support services; however, this is well below reported PC referral rates for lung cancer patients. Moreover, the majority of PC referrals occurred late; among those who died, 31% were referred within a month and 70% within 6 months of death. Referrals to PR and PC had however increased (by around 2-fold and 4-fold, respectively) over the course of the study period. Factors associated with non-referral to PR included female sex, older age and co-diagnosis of dementia; barriers to PC referral included being female or of Asian or Black ethnicity. We also found evidence of regional differences in referrals. These findings confirm that PR and PC service provision for people with IPF across England is suboptimal.

Bronchoscopic Lung Volume Reduction: A Review

Bronchoscopic lung volume reduction (BLVR) is an established treatment modality for the management of advanced chronic obstructive pulmonary disease complicated by severe emphysema and hyperinflation refractory to other therapies. BLVR aims to reduce hyperinflation and residual volume, thereby improving pulmonary function, symptom control, and quality of life. Multiple distinct devices and technologies, including endobronchial coils, thermal vapor ablation, bio-lung volume reduction, and airway bypass stenting, have been developed to achieve lung volume reduction with varying degrees of accessibility and evidence. The most promising BLVR treatment modality to date has been the placement of one-way endobronchial valves (EBVs), with more than 25,000 cases performed worldwide. Identifying symptomatic patients who would benefit from BLVR is challenging and can be time and resource intensive, and candidacy may be limited by physiologic parameters. Additional new technologies may be able to improve the identification and evaluation of candidates as well as increase the portion of evaluated patients who ultimately qualify for BLVR. In this review, we aim to provide historical context to BLVR, summarize the available evidence regarding its use, discuss potential complications, and provide readers with a clear guide to patient selection and referral for BLVR, with a focus on EBV placement. In addition, we will highlight potential future directions for the field.

Exploring the Impact of Inhaled Corticosteroids on Endothelial Function in Chronic Obstructive Pulmonary Disease Patients Undergoing Pulmonary Rehabilitation

Background: Chronic obstructive pulmonary disease (COPD) is associated with subclinical atherosclerosis and endothelial dysfunction, which can be assessed non-invasively through flow-mediated dilation (FMD). In this study, we evaluated the potential impact of inhaled corticosteroid (ICS) therapy on FMD of COPD patients undergoing pulmonary rehabilitation (PR). Methods: Medical records of COPD patients undergoing FMD assessment upon admission to our Pulmonary Rehabilitation Unit were reviewed in this retrospective post hoc analysis. Results: A total of 46 patients with COPD (median age 71.5 years, 28.3% postmenopausal females) were included in the final analysis. Among these, 27 participants were currently receiving ICS therapy, while 19 were not. At baseline, the two groups showed no difference in the main clinical and functional variables. Similarly, no significant difference was observed in vascular reactivity parameters, with a median FMD of 3.12% (IQR: 2.23-4.45) in ICS users and 3.39% (IQR: 2.45-4.08) in ICS nonusers (p = 0.544). After PR, a significant improvement in the main rehabilitation and patient-reported outcomes was observed in all groups, with a significant improvement in FMD documented in both patients treated with steroids (from 3.12%; IQR: 2.23-4.45 to 4.77%; IQR: 3.25-5.63, p = 0.022) and in those who were not (from 3.39%; IQR: 2.45-4.08 to 5.04%; IQR: 3.98-6.06, p = 0.005). FMD changes were of comparable magnitude among groups. Conclusions: Our preliminary findings do not indicate a significant impact of medications containing ICS on the endothelial function of COPD patients, suggesting that the potential beneficial effect of PR on this surrogate marker of cardiovascular risk is independent of inhaled therapy.

Telerehabilitation Compared to Center-based Pulmonary Rehabilitation for People with Chronic Respiratory Disease: Economic Analysis of a Randomized, Controlled Clinical Trial

RATIONALE

New pulmonary rehabilitation models can improve access to this effective but underutilised treatment for people with chronic respiratory disease, however cost effectiveness has not been determined.

OBJECTIVE

To compare the cost effectiveness of telerehabilitation, including videoconferencing and synchronous supervision, to standard center-based pulmonary rehabilitation.

METHODS

Prospective economic analyses were undertaken from a societal perspective alongside a randomised controlled equivalence trial in which adults with stable chronic respiratory disease undertook an 8-week outpatient center-based program or telerehabilitation. Clinical assessment for effectiveness (Chronic Respiratory Disease Questionnaire dyspnoea domain [CRQ-D] score) was undertaken at baseline, following pulmonary rehabilitation and 12-month follow-up. Individual-level administrative and self-report healthcare cost data were collected over 12 months following the program (Australian dollars, 2020) Results: There were no between-group differences for effectiveness (CRQ-D MD -0.2 [SE 1.0], p=0.61) or total costs ($565 [5452], p=0.92) over 12 months. On the cost effectiveness plane, 97.4% of estimates fell between the equivalence margins for effectiveness. Application of a range of values for cost margin demonstrated a 95% probability that telerehabilitation was equivalent to center-based pulmonary rehabilitation when the threshold was $11,000. Results were robust to approach, sensitivity and subgroup analyses. The internal rate of return was 134% over 5 years. Program completion (regardless of model) was associated with a significant reduction in total costs in the following 12 months (β $-17,960, 95%CI -29,967 to -5952). Conclusions This study supports delivery of telerehabilitation as a cost-effective alternative model of pulmonary rehabilitation for people with chronic respiratory disease.

Long-term self-reported attendance in exercise training or lung choir and status of quality of life following initial pulmonary rehabilitation for COPD

Background

Both adherence rates to pulmonary rehabilitation (PR) programmes and long-term attendance in exercise training after PR remain a challenge. In our previous randomised controlled trial (RCT), effects were positively associated with a dose-response pattern, regardless of whether PR contained conventional physical exercise training (PExT) or Singing for Lung Health (SLH) as a training modality within a 10 weeks' PR programme for chronic obstructive pulmonary disease (COPD). However, long-term status of this RCT cohort remains unknown. In this study, we investigated whether current status (=attendance in supervised exercise training or a lung choir and scoring in quality of life (QoL)) was related to initial PR completion, randomisation, or adherence.

Methods

We collected data via telephone, using a researcher-developed questionnaire on current self-reported attendance in supervised exercise training or a lung choir and on perceived benefits of the initial RCT intervention. Additionally, we used COPD-validated questionnaires (primarily: QoL (measure: St George's Respiratory Questionnaire; SGRQ).

Results

In 2023 (i.e., mean/median 4.7 years after initial PR), surviving participants were contacted (n = 196; 73% of 270), and 160 (82% of 196) were included. Out of the included participants, 30 (19%) had not completed initial PR. Compared to the initial PR-completers, non-completers reported less current attendance in exercise training or lung choir (24% vs. 46%, p = 0.03) but SGRQ scores were comparable. Yet, those who attended exercise training or lung choir at present (n = 66/160; 41% out of 160) reported better QoL score than those with no current attendance (SGRQ; Attending: 39.9 ± 15.4; Not attending: 43.1 ± 16.7; p = 0.02). Neither having had SLH instead of PExT, nor adherence level during initial PR, was related to current attendance or to QoL scores.

Conclusion

This study indicates that long-term self-reported attendance and current QoL scores are positively related to initial completion of a PR programme. Surprisingly, neither initial PR content (PExT or SLH) nor initial PR adherence was related to long-term outcomes. We suggest that future PR programmes include special attention to those who do not complete PR to support long-term attendance and QoL status.

A Network Meta-Analysis of Aerobic, Resistance, Endurance, and High-Intensity Interval Training to Prioritize Exercise for Stable COPD

Purpose

While the benefits of exercises for chronic obstructive pulmonary disease (COPD) are well-established, the relative effectiveness of different exercise types for stable COPD remains unclear. This network meta-analysis aims to investigate the comparative effects of aerobic exercise (AE), resistance training (RT), endurance training (ET), and high-intensity interval training (HIIT) in stable COPD.

Methods

Electronic searches were performed in PubMed, Embase, and the Cochrane library to identify relevant randomized controlled trials (RCTs) investigating the effects of exercises on 6-minute walk test distance (6MWD), forced expiratory volume in one second (FEV1), and forced vital capacity (FVC), and St. George's Respiratory Questionnaire (SGRQ) score. Two authors screened the retrieved articles, extracted relevant data, and assessed the risk of bias. Network meta-analysis was conducted using Stata 14.0.

Results

This study included a total of 19 studies involving 951 patients with stable COPD. HIIT emerged as the most favorable exercise type for enhancing 6MWD, with a probability of 82.9%. RT exhibited the greatest efficacy in reducing SGRQ scores, with probability of 49.8%. Notably, ET demonstrated superiority in improving FEV1 and FVC, with probabilities of being most effective at 78.1% and 42.0%, respectively.

Conclusion

This study suggests that HIIT may be a viable intervention for improving exercise capacity in stable COPD patients, compared to AE, RR, and ET. RT may hold promise for improving quality of life, and ET may demonstrate superiority in improving pulmonary function. However, variation in response likely depends on patient characteristics, program parameters, and delivery context. Future research should explore the synergistic effects of combining RT with ET/HIIT, focusing on patient subgroups, optimal dosing, and settings, as current guidelines indicate this combination may offer the most significant benefits.