Efficacy of varenicline or bupropion and its association with nicotine metabolite ratio among smokers with COPD.

BACKGROUND AND OBJECTIVE: Nicotine metabolic ratio (NMR) has been associated with nicotine metabolism and smoking characteristics. However, there are few studies on the potential association between NMR and smoking cessation efficacy in smokers with chronic obstructive pulmonary disease (COPD) in China or elsewhere. METHODS: This study was a stratified block randomized controlled trial for smoking cessation in Chinese smokers with COPD. NMR was used as a stratification factor; slow metabolizers were defined as those with NMR <0.31, and normal metabolizers as those with NMR ≥0.31. Participants were randomly assigned to the varenicline or bupropion group. Follow-up visits were conducted at 1, 2, 4, 6, 9, 12 and 24 weeks. RESULTS: Two hundred twenty-four participants were recruited and analysed from February 2019 to June 2022. In normal metabolizers, the 9-12 weeks continuous abstinence rate of varenicline (43.1%) was higher than in bupropion (23.5%) (OR = 2.47, 95% CI 1.05-5.78, p = 0.038). There was no significant difference in abstinence rates between treatment groups in slow metabolizers (54.1% vs. 45.9%, OR = 1.39, 95% CI 0.68-2.83, p = 0.366). For slow metabolizers, the total score of side effects in the varenicline group was significantly higher than the bupropion group (p = 0.048), while there was no significant difference in side effects between groups for normal metabolizers (p = 0.360). CONCLUSION: Varenicline showed better efficacy than bupropion in normal metabolizers, and bupropion showed equivalent efficacy in slow metabolizers with less side effects. According to our study, NMR provides a better justification for both scientific research and tailoring optimal pharmacotherapy for smoking cessation among smokers in COPD.

Impacts of a Dysphagia Screening Questionnaire on Speech Pathology Input Using a Transdisciplinary Approach for Patients with Chronic Obstructive Pulmonary Disease in a Pulmonary Rehabilitation Program.

Patients with chronic obstructive pulmonary disease (COPD) in pulmonary rehabilitation programs (PRPs) are not routinely screened for dysphagia. An Australian regional health service audit revealed that patients with COPD are frequently referred to speech pathology during acute admissions, rather than proactively to mitigate the risk of dysphagia-related consequences. Referral patterns to speech pathology using a novel transdisciplinary approach for identifying at risk for dysphagia patients in a PRP were explored. The aim of this study was to investigate the impact of a transdisciplinary dysphagia screening questionnaire on speech pathology referrals within a cohort of patients with COPD enrolled in a PRP. This quasi-experimental study introduced a dysphagia screening questionnaire in a PRP using a transdisciplinary approach. A retrospective audit of PRP patients (n = 563) between 01/01/2014 and 31/12/2018 was conducted to identify the frequency of referrals to speech pathology for dysphagia. Data was compared to a cohort of patients (n = 50) enrolled in the PRP (from 01/02/21 to 30/11/21) after introduction of the questionnaire using Fisher's exact test. Less than 1% (n = 4/563) of PRP patients were referred to speech pathology prior to implementation of the questionnaire. Following the implementation, referrals to speech pathology significantly increased to 16% (8/50) (X2 = 7.72, P < 0.05; odds ratio = 7.89 95% CI [1.94, 32.1]). Introducing a dysphagia screening questionnaire increased referrals to speech pathology from a PRP. This study demonstrated the potential for a transdisciplinary approach in early screening for patients at risk of dysphagia for patients with COPD. Further research is encouraged to explore patient motivation towards speech pathology input with COPD-related dysphagia and clinicians' perceived self-efficacy in using the questionnaire.

A nomogram-based prediction model for dysphagia in patients with chronic obstructive pulmonary disease: A cross-sectional study.

AIM AND OBJECTIVES: To investigate the prevalence of dysphagia in patients with COPD, identify the risk factors for dysphagia, develop a visual clinical prediction model and quantitatively predict the probability of developing dysphagia. BACKGROUND: Patients with COPD are at high risk of dysphagia, which is strongly linked to the acute exacerbation of their condition. The use of effective tools to predict its risk may contribute to the early identification and treatment of dysphagia in patients with COPD. DESIGN: A cross-sectional design. METHODS: From July 2021 to April 2023, we enrolled 405 patients with COPD for this study. The clinical prediction model was constructed according to the results of a univariate analysis and a logistic regression analysis, evaluated by discrimination, calibration and decision curve analysis and visualized by a nomogram. This study was reported using the TRIPOD checklist. RESULTS: In total, 405 patients with COPD experienced dysphagia with a prevalence of 59.01%. A visual prediction model was constructed based on age, whether combined with cerebrovascular disease, chronic pulmonary heart disease, acute exacerbation of COPD, home noninvasive positive pressure ventilation, dyspnoea level and xerostomia level. The model exhibited excellent discrimination at an AUC of .879. Calibration curve analysis indicated a good agreement between experimental and predicted values, and the decision curve analysis showed a high clinical utility. CONCLUSION: The model we devised may be used in clinical settings to predict the occurrence of dysphagia in patients with COPD at an early stage. RELEVANCE TO CLINICAL PRACTICE: The model can help nursing staff to calculate the risk probability of dysphagia in patients with COPD, formulate personalized preventive care measures for high-risk groups as soon as possible to achieve early prevention or delay of dysphagia and its related complications and improve the prognosis. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

Quantifying uptake and completion of pulmonary rehabilitation programs in people with chronic obstructive pulmonary disease known to tertiary care.

BACKGROUND: People with symptomatic chronic obstructive pulmonary disease (COPD) benefit from pulmonary rehabilitation programs (PRPs), but program attrition is common. METHODS: For people with COPD who presented to tertiary care and appeared appropriate for a PRP, we prospectively mapped their PRP journey, explored factors influencing attendance to pre-program assessment and captured program attrition. RESULTS: Of the 391 participants, 31% (95% CI 27 to 36) were referred to a PRP (n = 123; age 68 ± 10years, 62 males [50%], FEV1 45 ± 19%predicted). Of those referred, 94 (76% [69 to 84]) attended a pre-program assessment. Ex-smokers and those who had a healthcare professional (HCP) explain they would be referred were more likely to attend a pre-program assessment (odds ratio [95%CI]; 2.6 [1.1 to 6.1]; and 4.7 [1.9 to 11.7], respectively). Of the 94 who attended, 63 (67% [58 to 77]) commenced; and of those who commenced, 35 (56% [43 to 68]) completed a PRP. All who completed (n = 35, 100%) were provided at least one strategy to maintain training-related gains. CONCLUSION: Attrition occurs throughout the PRP journey. Interactions with HCPs about PRPs positively influenced attendance. Understanding how HCPs can best contextualise PRPs to encourage referral acceptance and uptake is an important area for further work.

Examining the Impact of Social Support on Psychological Well-Being Among Canadian Individuals With COPD: Implications for Government Policies.

Chronic obstructive pulmonary disease (COPD) is a significant respiratory disease and is globally ranked as the third leading cause of death. In Canada, the direct healthcare costs associated with COPD are estimated to be $1.5 billion annually. This study utilized quantitative analyses to examine the impact of specific dimensions of social support, namely, guidance, reliable alliance, reassurance of worth, attachment, and social integration within a clinically identified population of individuals with COPD who exhibit symptoms of depression and anxiety. The study was based on the Social Provisions Theory and stress-buffering hypothesis, utilizing large-scale population data from Statistics Canada's 2012 Canadian Community Health Survey (CCHS) Mental Health component. On a national scale, individuals were more likely to report a decreased sense of belonging to a group of friends (social integration) and struggle to depend on others in stressful times (reliable alliance) while experiencing symptoms of anxiety and depression. These findings underscore the potential benefits of integrating peer support, socialization initiatives, and caregiver training into clinical programs designed for individuals with COPD.

The specialist community practitioner district nurse's role in optimising COPD.

Chronic obstructive pulmonary disease (COPD) is a long-term condition affecting all aspects of an individual's life. Specialist Community practitioner district nurses (SCPDN) manage patients with multiple co morbidities on their caseload, and as such require an extensive clinical knowledge base. COPD is a highly prevalent and complex disease; therefore, individualised holistic assessments are required to ensure patients receive personalised and evidence-based care. Care delivery must include an awareness of health interventions encompassing, screening, health promotion and prevention. The SCPDN's consideration of the physical, mental and social determinants which adversely affect the health of the individual with COPD is imperative to deliver high quality care to the individuals, families and communities.

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Objective: To explore the efficacy and safety of medical thoracoscopic bulla volume reduction for the treatment of chronic obstructive pulmonary disease (COPD) combined with giant emphysematous bullae (GEB). Methods: A total of 66 patients with COPD combined with GEB were enrolled in the study. All the subjects received treatment at Zhengzhou Central Hospital affiliated with Zhengzhou University between March 2021 and December 2022. The subjects were divided into two groups, a medical thoracoscope group consisting of 30 cases treated with medical thoracoscopic bulla volume reduction and a surgical thoracoscope group consisting of 36 cases treated by video-assisted thoracoscopic surgery. All patients were followed up before discharge and 3 months and 6 months after discharge. The preoperative and postoperative levels of the pulmonary function, 6-minute walk distance (6MWD), and St. George's Respiratory Questionnaire (SGRQ) scores and differences in postoperative complications were compared between the two groups. The operative duration, postoperative length-of-stay, and surgical costs and hospitalization bills, and the maximum visual analog scale (VAS) pain scores at 24 h after the procedure were assessed. Results: The baseline data of the two groups were comparable, showing no statistically significant difference. The forced expiratory volume in 1 second (FEV1) 6 months after the procedures improved in both the medical thoracoscopy group ([0.78±0.29] L vs. [1.02±0.31] L, P<0.001) and the surgical thoracoscopy group ([0.80±0.21] L vs. [1.03±0.23] L, P<0.001) compared to that before the procedures. Improvements to a certain degree in 6MWT and SGRQ scores were also observed in the two groups at 3 months and 6 months after the procedures (P<0.05). In addition, no statistically significant difference in these indexes was observed during the follow-up period of the patients in the two groups. There was no significant difference in operating time between the two groups. The medical thoracoscopy group had shorter postoperative length-of-stay ([7.3±2.6] d) and 24-hour postoperative VAS pain scores (3.0 [2.0, 3.3]) than the surgical thoracoscopic group did ([10.4±4.3] d and 4.5 [3.0, 5.0], respectively), with the differences being statistically significant (P<0.05). Surgical cost and total hospitalization bills were lower in the medical thoracoscopy group than those in the surgical thoracoscopy group (P<0.05). The complication rate in the medical thoracoscopy group was lower than that in the surgical thoracoscopy group (46.7% vs. 52.8%), but the difference was not statistically significant. Conclusion: Medical thoracoscopic reduction of bulla volume can significantly improve the pulmonary function, quality of life, and exercise tolerance of patients with COPD combined with GEB, and it can reduce postoperative short-term pain and shorten postoperative length-of-stay. The procedure has the advantages of minimal invasiveness, quick recovery, and low costs. Hence extensive clinical application is warranted.

The effects of adding a six-month Pilates exercise program to three months of traditional community-based pulmonary rehabilitation in individuals with COPD: a prospective cohort study.

Introduction: Pilates exercise may complement traditional pulmonary rehabilitation in individuals with chronic obstructive pulmonary disease (COPD). The objective was to analyze the effects of adding a six-month Pilates exercise program to a three-month pulmonary rehabilitation for individuals with COPD. Methods: Thirty-five participants with COPD (GOLD B) were assigned to the intervention (n=14) or control (n=21) group. Both groups received an initial three months of a pulmonary rehabilitation program. The intervention group further underwent six months of pilates. Participants were evaluated at baseline and at three, six, and nine months. Lung function and strength of respiratory muscles were defined as primary outcomes. Secondary outcomes included cardiac, physical function, and exacerbation episodes. Results: There were no consistent statistically significant differences between groups for the lung function outcomes (p\<0.05). Maximal inspiratory and expiratory pressure increased significantly at three months in both groups (p\<0.05). It was significantly superior in the intervention group at nine months for maximal inspiratory pressure (p=0.005) and six and nine months for maximal expiratory pressure (p=0.027 and p\<0.001, respectively). Changes in muscle strength (knee extension and handgrip) were comparable between groups (p>0.05), but exercise-induced fatigue and balance were significantly superior in the intervention group at the six- and nine-month follow-ups (p\<0.05). Discussion: Pilates exercise programs may be implemented to augment traditional pulmonary rehabilitation with the goal of improving the strength of respiratory muscles. Conclusion: Adding a Pilates exercise program to pulmonary rehabilitation resulted in superior strength of respiratory muscles, higher resistance to exercise-induced fatigue, and improved balance.

Effectiveness of a Bundled Payments for Care Improvement Program for Chronic Obstructive Pulmonary Disease.

BACKGROUND: The Medicare Bundled Payments for Care Improvement (BPCI) program reimburses 90-day care episodes post-hospitalization. COPD is a leading cause of early readmissions making it a target for value-based payment reform. OBJECTIVE: Evaluate the financial impact of a COPD BPCI program. DESIGN, PARTICIPANTS, INTERVENTIONS: A single-site retrospective observational study evaluated the impact of an evidence-based transitions of care program on episode costs and readmission rates, comparing patients hospitalized for COPD exacerbations who received versus those who did not receive the intervention. MAIN MEASURES: Mean episode costs and readmissions. KEY RESULTS: Between October 2015 and September 2018, 132 received and 161 did not receive the program, respectively. Mean episode costs were below target for six out of eleven quarters for the intervention group, as opposed to only one out of twelve quarters for the control group. Overall, there were non-significant mean savings of $2551 (95% CI: - $811 to $5795) in episode costs relative to target costs for the intervention group, though results varied by index admission diagnosis-related group (DRG); there were additional costs of $4184 per episode for the least-complicated cohort (DRG 192), but savings of $1897 and $1753 for the most complicated index admissions (DRGs 191 and 190, respectively). A significant mean decrease of 0.24 readmissions per episode was observed in 90-day readmission rates for intervention relative to control. Readmissions and hospital discharges to skilled nursing facilities were factors of higher costs (mean increases of $9098 and $17,095 per episode respectively). CONCLUSIONS: Our COPD BPCI program had a non-significant cost-saving effect, although sample size limited study power. The differential impact of the intervention by DRG suggests that targeting interventions to more clinically complex patients could increase the financial impact of the program. Further evaluations are needed to determine if our BPCI program decreased care variation and improved quality of care. PRIMARY SOURCE OF FUNDING: This research was supported by NIH NIA grant #5T35AG029795-12.

Willingness to participate in combination screening for lung cancer, chronic obstructive pulmonary disease and cardiovascular disease in four European countries.

OBJECTIVES: Lung cancer screening (LCS), using low-dose computed tomography (LDCT), can be more efficient by simultaneously screening for chronic obstructive pulmonary disease (COPD) and cardiovascular disease (CVD), the Big-3 diseases. This study aimed to determine the willingness to participate in (combinations of) Big-3 screening in four European countries and the relative importance of amendable participation barriers. METHODS: An online cross-sectional survey aimed at (former) smokers aged 50-75 years elicited the willingness of individuals to participate in Big-3 screening and used analytical hierarchy processing (AHP) to determine the importance of participation barriers. RESULTS: Respondents were from France (n = 391), Germany (n = 338), Italy (n = 399), and the Netherlands (n = 342), and consisted of 51.2% men. The willingness to participate in screening was marginally influenced by the diseases screened for (maximum difference of 3.1%, for Big-3 screening (73.4%) vs. lung cancer and COPD screening (70.3%)) and by country (maximum difference of 3.7%, between France (68.5%) and the Netherlands (72.3%)). The largest effect on willingness to participate was personal perceived risk of lung cancer. The most important barriers were the missed cases during screening (weight 0.19) and frequency of screening (weight 0.14), while diseases screened for (weight 0.11) ranked low. CONCLUSIONS: The difference in willingness to participate in LCS showed marginal increase with inclusion of more diseases and limited variation between countries. A marginal increase in participation might result in a marginal additional benefit of Big-3 screening. The amendable participation barriers are similar to previous studies, and the new criterion, diseases screened for, is relatively unimportant. CLINICAL RELEVANCE STATEMENT: Adding diseases to combination screening modestly improves participation, driven by personal perceived risk. These findings guide program design and campaigns for lung cancer and Big-3 screening. Benefits of Big-3 screening lie in long-term health and economic impact, not participation increase. KEY POINTS: • It is unknown whether or how combination screening might affect participation. • The addition of chronic obstructive pulmonary disease and cardiovascular disease to lung cancer screening resulted in a marginal increase in willingness to participate. • The primary determinant influencing individuals' engagement in such programs is their personal perceived risk of the disease.

Short-Term Health Outcomes of a Structured Pulmonary Rehabilitation Program Implemented Within Rural Canadian Sites Compared With an Established Urban Site: A Pre-Post Intervention Observational Study.

OBJECTIVES: To evaluate congruence in program delivery and short-term health outcomes of a structured pulmonary rehabilitation (S-PR) program implemented at 11 Canadian rural pulmonary rehabilitation (PR) sites compared with an urban reference site. DESIGN: Multi-center, pre- and post-intervention, comparative, observational study. SETTING: Eleven rural Canadian PR sites and 1 urban reference PR site. PARTICIPANTS: Adults with chronic respiratory diseases (CRDs) referred to PR. INTERVENTION: Clinicians at the reference site worked with local clinicians to implement the S-PR program in rural sites. A PR survey evaluated site congruence with the S-PR components, with congruence defined as delivering program components ≥80% in alignment with the S-PR program. Participants were enrolled in 16 sessions of group education and supervised exercise, offered twice or thrice a week. Health outcomes were tracked using a quality assurance database. OUTCOME MEASURES: Main outcomes were congruence in program delivery and changes in the 6-minute walk (6MW) distance and COPD Assessment Test (CAT). RESULTS: A total of 555 participants (rural n=204 and reference n=351) were included in the analyses. There was congruence in exercise and group education; however, individual education varied. Following the S-PR program, 6MW distance increased, with greater changes observed at rural sites (51±67 m at rural sites vs 30±46 m at the reference site). CAT score was reduced by -2.6±5.4 points with no difference between reference and rural sites. Changes in 6MW distance and CAT scores were similar for participants at sites that were congruent vs noncongruent with the individual education component, and similar for patients with COPD, asthma, bronchiectasis, and interstitial lung disease. CONCLUSION: The S-PR program components can be implemented with good congruence in Canadian rural settings, resulting in similar short-term health outcomes as in an established urban site and across CRDs.

Severe chronic obstructive pulmonary disease is associated with reduced oral health conditions.

OBJECTIVES: This study aimed to investigate the association of explicitly severe chronic obstructive pulmonary disease (COPD) with oral conditions considering in-depth shared risk factors. METHODS: A case-control study was conducted with 104 participants, 52 with severe COPD and 52 matched controls without COPD. Dental and periodontal status were clinically assessed and oral health-related quality of life (OHRQoL) by OHIP-G14-questionnaire. RESULTS: Between COPD- and control-group, there were no statistically significant differences regarding age (66.02 ± 7.30), sex (female: 52 [50%]), smoking history (44.69 ± 23.23 pack years) and number of systemic diseases (2.60 ± 1.38). COPD patients demonstrated significantly fewer remaining teeth (12.58 ± 9.67 vs. 18.85 ± 6.24, p < 0.001) besides higher DMFT (decayed, missing and filled teeth) index (21.12 ± 5.83 vs. 19.10 ± 3.91, p = 0.036). They had significantly greater probing pocket depths (PPD: 3.24 mm ± 0.71 mm vs. 2.7 mm ± 0.37 mm, p < 0.001) and bleeding on probing (BOP: 34.52% ± 22.03% vs. 22.85% ± 17.94%, p = 0.003) compared to controls, but showed no significant difference in clinical attachment level or staging of periodontitis. The OHIP-G14 sum score was significantly higher in COPD patients (7.40 ± 7.28 vs. 3.63 ± 4.85, p = 0.002). Common risk factors such as educational status, physical activity, dentist visit frequency, oral hygiene regimens and dietary habits were less favourable in patients with COPD. CONCLUSIONS: COPD was significantly associated with higher tooth loss, PPD, BOP and DMFT besides lower OHRQoL.

Development and evaluation of the Rural and Northern Community Focused Model of COPD Care (RaNCoM).

BACKGROUND: The prevalence of COPD continues to rise. To address the challenges to provide high quality COPD care in rural and northern communities, leaders in one rural and northern community in Western Canada sought to change the culture of COPD screening and care. Recognizing effective assessment, diagnosis, and treatment for patients with COPD are crucial to improve outcomes, a program was developed between 2012 and 2021 to enhance primary care for COPD patients. METHODS: A process evaluation was undertaken to assess program development, implementation, mechanisms of impact, and context of COPD program. Qualitative thematic analysis of stakeholder interviews (n = 11) and a document review (n = 60; ~ 500 pages) of key clinic documents was conducted. RESULTS: We describe five phases of the COPD program's development (Survive; Reorganize and Stabilize; Assess and Respond; Build and Refine; and Sustain and Share), highlighting areas of innovation. Outreach and localizing resources improved access to the program. Acquiring secured physician compensation, capturing quality data, and improving patient and provider self-efficacy built the capacity of the system and stakeholders within it. Finally, relationships were forged through building an integrated facility, collaborative networking, and patient engagement. Key elements of program implementation included the resources (infrastructure, software, operational) required to ensure operation. CONCLUSION: Team-based care and service integration enhanced care capacity and the health network. Focused use of infrastructure and resources supported the people in the care system. Upholding a shared value of relationship is critical to deliver robust and sustainable rural healthcare. Quality improvement requires investment in rural community healthcare resources.

GRADE-ADOLOPMENT of clinical practice guidelines and creation of clinical pathways for the primary care management of chronic respiratory conditions in Pakistan.

INTRODUCTION: In Pakistan, chronic respiratory conditions contribute a large burden of morbidity and mortality. A major reason for this is the lack of availability of local evidence-based clinical practice guidelines (EBCPGs) in Pakistan, particularly at the primary care level. Thus, we developed EBCPGs and created clinical diagnosis and referral pathways for the primary care management of chronic respiratory conditions in Pakistan. METHODS: The source guidelines were selected by two local expert pulmonologists after a thorough literature review on PubMed and Google Scholar from 2010 to December 2021. The source guidelines covered idiopathic pulmonary fibrosis, asthma, chronic obstructive pulmonary disorders, and bronchiectasis. The GRADE-ADOLOPMENT process consists of three key elements: adoption (using recommendations as is or with minor changes), adaptation (effective context-specific changes to recommendations) or additions (including new recommendations to fill a gap in the EBCPG). We employed the GRADE-ADOLOPMENT process to adopt, adapt, adopt with minor changes, or exclude recommendations from a source guideline. Additional recommendations were added to the clinical pathways based on a best-evidence review process. RESULTS: 46 recommendations were excluded mainly due to the unavailability of recommended management in Pakistan and scope beyond the practice of general physicians. Clinical diagnosis and referral pathways were designed for the four chronic respiratory conditions, explicitly delineating the role of primary care practitioners in the diagnosis, basic management, and timely referral of patients. Across the four conditions, 18 recommendations were added (seven for IPF, three for bronchiectasis, four for COPD, and four for asthma). CONCLUSION: The widespread use of the newly created EBCPGs and clinical pathways in the primary healthcare system of Pakistan can help alleviate the morbidity and mortality related to chronic respiratory conditions disease in the country.

Enhancing potential impact of hospital discharge interventions for patients with COPD: a qualitative systematic review.

BACKGROUND: Patients with chronic obstructive pulmonary disease (COPD) are frequently readmitted to hospital resulting in avoidable healthcare costs. Many different interventions designed to reduce hospital readmissions are reported with limited evidence for effectiveness. Greater insight into how interventions could be better designed to improve patient outcomes has been recommended. AIM: To identify areas for optimisation within previously reported interventions provided to reduce COPD rehospitalisation to improve future intervention development. METHODS: A systematic review was conducted by searching Medline, Embase, CINAHL, PsycINFO, and CENTRAL in June 2022. Inclusion criteria were interventions provided to patients with COPD in the transition from hospital to home or community. Exclusion criteria were lack of empirical qualitative results, reviews, drug trials, and protocols. Study quality was assessed using the Critical Appraisal Skills Programme tool and results were synthesised thematically. RESULTS: A total of 2,962 studies were screened and nine studies included. Patients with COPD experience difficulties when transitioning from hospital to home. It is therefore important for interventions to facilitate a smooth transition process and give appropriate follow-up post-discharge. Additionally, interventions should be tailored for each patient, especially regarding information provided. CONCLUSION: Very few studies specifically consider processes underpinning COPD discharge intervention implementation. There is a need to recognise that the transition itself creates problems, which require addressing, before introducing any new intervention. Patients report a preference for interventions to be individually adapted-in particular the provision of patient information. Whilst many intervention aspects were well received, feasibility testing may have enhanced acceptability. Patient and public involvement may address many of these concerns and greater use of process evaluations should enable researchers to learn from each other's experiences. TRIAL REGISTRATION: The review was registered in PROSPERO with registration number CRD42022339523.

Effects of photobiomodulation as an adjunctive treatment in chronic obstructive pulmonary disease: a narrative review.

Chronic obstructive pulmonary disease (COPD) is a disease characterized by chronic airway inflammation and remodeling and lung parenchymal inflammation and destruction, which result in many pulmonary and extrapulmonary manifestations. The anti-inflammatory effect of photobiomodulation (PBM) has been reported in previous studies. This review was conducted to evaluate the direct effect of PBM on lung inflammation in COPD. The other effects of PBM on modulation of peripheral and respiratory muscle metabolism and angiogenesis in lung tissues were also discussed. The databases of PubMed, Cochrane Library, and Google Scholar were searched to find the relevant studies. Keywords included PBM and related terms, COPD-related signs, and lung inflammation. A total of 12 articles were selected and reviewed in this study. Based on the present review, PBM is helpful in reducing lung inflammation through decreasing the inflammatory cytokines and chemokines at multiple levels and increasing anti-inflammatory cytokines. In addition, PBM also improves both peripheral and respiratory muscle metabolism and promote angiogenesis. This review demonstrated that PBM is a promising adjunctive treatment modality for COPD management which merits further validation.

Time-Course of Changes in Multidimensional Fatigue and Functional Exercise Capacity and Their Associations during a Short Inpatient Pulmonary Rehabilitation Program.

This study aimed to assess the time-course of changes in multidimensional fatigue and functional exercise capacity and their associations during an inpatient pulmonary rehabilitation (PR) program. Seventy COPD patients from three centres were enrolled for a four-week PR program and were evaluated before (T0) and at the end of each week (T1, T2, T3, and T4). Weekly change in multidimensional fatigue was assessed by the multidimensional inventory questionnaire (MFI-20) and functional exercise capacity by the 6-minute walking distance (6MWD). Reaction time (RT) and heart rate variability (HRV) were also assessed as complementary markers of fatigue. HRV did not change during the study (all p > 0.05). MFI-20 score and RT decreased during the first part of the program (p < 0.001) and levelled off at T2 (all p > 0.05 compared with each preceding time). While 6MWD improved by almost 70% during the first part of the PR, it continued to increase, albeit at a greatly reduced pace, between T2 and T4 (p < 0.05). In parallel, a negative association was found between MFI-20 score and 6MWD at each evaluation time (r ranged from 0.43 to 0.71), with a significantly stronger T3 correlation compared with the other time periods (all p < 0.05). The strengthening of the association between fatigue and functional exercise capacity at T3, which occurred concomitantly with the slowdown of functional exercise capacity improvement, is consistent with a role for fatigue in the limitation of performance changes during PR. The limitation of fatigue during PR is thus an interesting aspect to improve the magnitude of performance changes.

The effectiveness of an unsupervised home-based pulmonary rehabilitation with self-management program in patients with chronic obstructive pulmonary disease.

AIMS: To assess the effectiveness of an unsupervised home-based pulmonary rehabilitation with self-management program in patients with chronic obstructive pulmonary disease (COPD). BACKGROUND: A few recent studies have shown that unsupervised home-based pulmonary rehabilitation can improve the clinical outcome of patients with COPD. More studies are needed to prove its benefits. DESIGN: This study used a quasi-experimental design. METHODS: Seventy-two admitted COPD patients were assigned to experimental group or control group through purposeful sampling. Data were collected from March 2016 to November 2017 in the Thoracic Intensive Care Unit of a Medical Center in Taiwan. The Medical Research Council dyspnea scale, the COPD Self-Efficacy Scale and the Clinical COPD Questionnaire were measured before education and at the first, second and third months after discharge. RESULTS: The Medical Research Council dyspnea scale and COPD Self-Efficacy Scale results in the experimental group were significantly improved compared with the control group in the third month after discharge. The Clinical COPD Questionnaire score continued to improve in both groups in the third month after discharge, and there was no difference between the two groups. CONCLUSION: A short-term unsupervised home-based pulmonary rehabilitation with self- management program had significant benefits for patients with COPD. The long-term effects need to be confirmed.

Characterising hospitalisation risk for chronic obstructive pulmonary disease exacerbations: Bedside and outpatient clinic assessments of easily measured variables.

OBJECTIVE: To identify the characteristics of people with chronic obstructive pulmonary disease (COPD) who require hospitalisation for exacerbations. METHODS: People with COPD were recruited either during hospitalisation or from out-patient respiratory medicine clinics. Hospital admissions were tracked throughout the 5-months recruitment period. For participants who were admitted, hospital readmissions were tracked for at least 30 days following discharge. Participants were grouped as either needing; (i) no hospital admission during the study period (no admission; ø-A), (ii) one or more hospital admissions during the study period but no readmission within 30 days of discharge (no rapid readmission; ø-RR) or (iii) one or more hospital admissions with a readmission within 30 days of discharge (rapid readmission; RR). RESULTS: Compared with the ø-A group (n=211), factors that independently increased the risk of ø-RR (n=146) and/or RR (n=57) group membership were being aged >60 years, identifying as an Indigenous person (relative risk ratio, 95% confidence interval 7.8 [1.8 to 34.0]) and the use of a support person or community service for activities of daily living (1.5 [1.0 to 2.4]. A body mass index ≥25 kg/m2 was protective. CONCLUSIONS: Variables recorded at the bedside or in clinic provided information on hospitalisation risk.

Implementation and maintenance of an enhanced pulmonary rehabilitation program in a single centre: An implementation study.

BACKGROUND: Pulmonary rehabilitation (PR) has major benefits for patients with chronic obstructive pulmonary disease (COPD). An enhanced PR program was developed with a self-management education intervention. The objective of our study was to evaluate the implementation of the enhanced PR program into a single centre. METHODS: Pre-post implementation study consisted of two evaluation periods: immediately after implementation and 18 months later. Guided by the RE-AIM framework, outcomes included: Reach, Effectiveness, Adoption, Implementation and Maintenance. RESULTS: Reach: 70-75% of referred patients agreed to a PR program (n = 26). Effectiveness: Clinically important improvements occurred in some patients in functional exercise capacity (64% of the patients achieved clinical important difference in 6-min walk test in the first evaluation period and 44% in the second evaluation period), knowledge, functional status, and self-efficacy in both evaluation periods. Adoption: All healthcare professionals (HCPs) involved in PR (n = 8) participated. Implementation: Fidelity for the group education sessions ranged from 76 to 95% (first evaluation) and from 82 to 88% (second evaluation). Maintenance: The program was sustained over 18 months with minor changes. Patients and HCPs were highly satisfied with the program. CONCLUSIONS: The enhanced PR program was accepted by patients and HCPs and was implemented and maintained at a single expert center with good implementation fidelity.