International Journal of Chronic Obstructive Pulmonary Disease最新文献

{"title":"A Multi-Specialty Delphi Consensus on Assessing and Managing Cardiopulmonary Risk in Patients with COPD","authors":"Mohit Bhutani, Jean Bourbeau, Shaun G Goodman, Nathaniel Mark Hawkins, Alan G Kaplan, Peter James Lin, Erika Dianne Penz, Subodh Verma, Shelley Zieroth","doi":"10.2147/copd.s471952","DOIUrl":"https://doi.org/10.2147/copd.s471952","url":null,"abstract":"<strong>Background:</strong> In Canada, COPD represents a significant burden to the patient and health system, as it is often under or misdiagnosed and sub-optimally treated. Cardiovascular disease (CVD) is a common co-morbidity in COPD and there is significant interplay between these two chronic conditions. Across all stages of COPD disease severity, deaths can be attributed not only to respiratory causes but also to cardiovascular-related factors. The established links between COPD and CVD suggest the need for a greater degree of collaboration between respirologists and cardiologists. This modified Delphi consensus was initiated to consider how optimal COPD care can be delivered within Canada, with specific consideration of reducing cardiopulmonary risk and outcomes in COPD patients.<br/><strong>Methods:</strong> A steering group with interest in the management of COPD and CVD from primary care, cardiology, and respirology identified 40 statements formed from four key themes. A 4-point Likert scale questionnaire was sent to healthcare professionals working in COPD across Canada by an independent third party to assess agreement (consensus) with these statements. Consensus was defined as high if ≥ 75% and very high if ≥ 90% of respondents agreed with a statement.<br/><strong>Results:</strong> A total of 100 responses were received from respirologists (n=30), cardiologists (n=30), and primary care physicians (n=40). Consensus was very strong (≥ 90%) in 28 (70%) statements, strong (≥ 75 and &lt; 90%) in 7 (17.5%) statements and was not achieved (&lt; 75%) in 5 (12.5%) of statements.<br/><strong>Conclusion:</strong> Based on the consensus scores, 9 key recommendations were proposed by the steering group. These focus on the need to comprehensively risk stratify and manage COPD patients to help prevent exacerbations. Consensus within this study provides a call to action for the expeditious implementation of the latest COPD guidelines from the Canadian Thoracic Society.<br/><br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"21 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Network Meta-Analysis of Aerobic, Resistance, Endurance, and High-Intensity Interval Training to Prioritize Exercise for Stable COPD","authors":"Xu Tian, Fangrong Liu, Feili Li, Yi Ren, Hongcai Shang","doi":"10.2147/copd.s476256","DOIUrl":"https://doi.org/10.2147/copd.s476256","url":null,"abstract":"<strong>Purpose:</strong> 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.<br/><strong>Methods:</strong> 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.<br/><strong>Results:</strong> 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.<br/><strong>Conclusion:</strong> 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.<br/><br/><strong>Keywords:</strong> COPD, exercise, pulmonary function, quality of life, network meta-analysis<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"8 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association Between Systolic Blood Pressure and in-Hospital Mortality Among Congestive Heart Failure Patients with Chronic Obstructive Pulmonary Disease in the Intensive Care Unit: A Retrospective Cohort Study","authors":"Kai Zhang, Yu Han, Yu Xuan Gao, Fang Ming Gu, Zhao Xuan Gu, Jia Ying Liang, Jia Yu Zhao, Tianqi Zhang, Min Gao, Tian Yi Cai, Rui Hu, Tian Zhou Liu, Bo Li, Yixin Zhang","doi":"10.2147/copd.s448332","DOIUrl":"https://doi.org/10.2147/copd.s448332","url":null,"abstract":"<strong>Background:</strong> There has been a growing body of research focusing on patients with Congestive Heart Failure (CHF) and chronic obstructive pulmonary disease (COPD) admitted to the intensive care unit (ICU). However, the optimal blood pressure (BP) level for such patients remains insufficiently explored. This study aimed to investigate the associations between systolic blood pressure (SBP) and in-hospital mortality among ICU patients with both CHF and COPD.<br/><strong>Methods:</strong> This retrospective cohort study enrolled 6309 patients from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. SBP was examined as both a continuous and categorical variable, with the primary outcome being in-hospital mortality. The investigation involved multivariable logistic regression, restricted cubic spline regression, and subgroup analysis to determine the relationship between SBP and mortality.<br/><strong>Results:</strong> The cohort consisted of 6309 patients with concurrent CHF and COPD (3246 females and 3063 males), with an average age of 73.0 ± 12.5 years. The multivariate analysis revealed an inverse association between SBP and in-hospital mortality, both as a continuous variable (odds ratio = 0.99 [95% CI, 0.99~1]) and as a categorical variable (divided into quintiles). Restricted cubic spline analysis demonstrated an L-shaped relationship between SBP and mortality risk (P nonlinearity &lt; 0.001), with an inflection point at 99.479 mmHg. Stratified analyses further supported the robustness of this correlation.<br/><strong>Conclusion:</strong> The relationship between SBP and in-hospital mortality in patients with both CHF and COPD follows an L-shaped pattern, with an inflection point at approximately 99.479 mmHg.<br/><br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"110 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Relationship Between Benefit Finding and Quality of Life in Patients with Chronic Obstructive Pulmonary Disease: The Mediating Effects of Self-Management","authors":"Jiangping Zhang, Xinran Liu, Xiaorong Zhou, Yumei Li, Ke Chen, Tingting Kang, Wenting Du, Rongfei Suo","doi":"10.2147/copd.s465953","DOIUrl":"https://doi.org/10.2147/copd.s465953","url":null,"abstract":"<strong>Objective:</strong> To explore the relationships among benefit finding (BF), self-management, and quality of life (QOL) among patients with COPD.<br/><strong>Methods:</strong> A total of 205 patients with COPD were selected via a convenient sampling method. BF refers to the ability to find meaning or benefit from difficult situations. The Benefit Finding Scale (BFS), self-management scale, and 36-item Short-Form Health Survey (MOS SF-36) were used to investigate BF, self-management and QOL (including a physical component summary (PCS) and a psychological component summary (MCS)). Structural equation modeling was used to examine the relationships among BF, self-management and QOL in patients with COPD and to analyze the effects of BF and self-management on QOL.<br/><strong>Results:</strong> The total QOL score of patients with COPD was 61.38± 21.15, and the PCS and MCS scores were 57.67± 23.60 and 65.09± 21.24, respectively. BF and self-management had positive predictive effects on both the PCS (β_BF = 0.519, P_BF = 0.012; β_{self-management} = 0.473, P_{self-management} = 0.012) and MCS (β_BF = 0.425, P_BF = 0.013; β_{self-management} = 0.535, P_{self-management} = 0.016) of patients with COPD, and self-management mediated the relationships of BF with the PCS (β = 0.144, P = 0.008) and MCS (β = 0.162, P = 0.007).<br/><strong>Conclusion:</strong> The QOL of patients with COPD needs to be improved, especially in terms of physical aspects. Helping COPD patients obtain better BF not only helps them improve their PCS and MCS directly but also indirectly through enhancing self-management to improve their PCS and MCS.<br/><br/><strong>Keywords:</strong> COPD, benefit finding, self-management, quality of life<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"28 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring Gender Differences in the Association Between TyG Index and COPD: A Cross-Sectional Study from NHANES 1999-2018","authors":"Jun Guo, Jie Yang, Jinghua Wang, Wei Liu, Yingjie Kang, Zhi Li, Chen Hao, Shuai Qi","doi":"10.2147/copd.s473089","DOIUrl":"https://doi.org/10.2147/copd.s473089","url":null,"abstract":"<strong>Purpose:</strong> This study examined gender differences in the association of Triglyceride-Glucose (TyG) index with the prevalence of chronic obstructive pulmonary disease (COPD), particularly in a non-diabetic population.<br/><strong>Methods:</strong> The study leveraged data from the National Health and Nutrition Examination Survey (NHANES), spanning from 1999 to 2018, with a cohort of 23,456 participants. Logistic regression and restricted cubic spline analyses were employed to explore the relationship between the TyG index and COPD prevalence.<br/><strong>Results:</strong> Statistical analyses revealed a significant positive association between the TyG index and COPD prevalence among non-diabetic women after adjustment for all covariates (OR=1.50; 95% CI, 1.08– 2.08), supported by a linear relationship (P for non-linearity=0.298). No equivalent significant association was found in non-diabetic men (OR=1.00; 95% CI, 0.67– 1.48). Within the diabetic group, the TyG index did not show a significant association with COPD prevalence, regardless of gender.<br/><strong>Conclusion:</strong> Our study reveals a significant positive correlation between the TyG index and COPD prevalence in the non-diabetic population, marked by notable gender differences.<br/><br/><strong>Keywords:</strong> TyG index, insulin resistance, chronic obstructive pulmonary disease, cross-sectional study<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"6 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Adherence and Persistence to Triple Therapy in Patients with COPD: A German Claims Data Study","authors":"Claus F Vogelmeier, Kai-Michael Beeh, Michael Schultze, Nils Kossack, Lena M Richter, Jing Claussen, Chris Compton, Stephen G Noorduyn, Afisi S Ismaila, Gema Requena","doi":"10.2147/copd.s460903","DOIUrl":"https://doi.org/10.2147/copd.s460903","url":null,"abstract":"<strong>Purpose:</strong> Triple therapy (long-acting muscarinic antagonist/long-acting β₂-agonist/inhaled corticosteroid) is recommended for patients with chronic obstructive pulmonary disease (COPD) who experience recurrent exacerbations. Multiple-inhaler triple therapy (MITT) is associated with poor adherence and persistence. This study assessed comparative adherence and persistence to single-inhaler triple therapy (SITT) versus MITT among patients with COPD in a real-world setting in Germany.<br/><strong>Patients and Methods:</strong> This retrospective analysis using the WIG2 benchmark database identified patients with COPD newly initiating triple therapy with MITT or SITT (fluticasone furoate/umeclidinium/vilanterol [FF/UMEC/VI] or formoterol/beclomethasone/glycopyrronium bromide [FOR/BDP/GLY]) November 2017–June 2019. Eligible patients were ≥ 35 years with 1 year’s continual insurance prior to triple therapy initiation and no previous record of triple therapy. Inverse probability of treatment weighting was used to balance baseline characteristics. Adherence was measured using proportion of days covered (PDC) at 6, 12, and 18 months post-treatment initiation; persistence (time until treatment discontinuation) was measured at 6, 12, and 18 months, with a gap of &gt; 30 days used to define non-persistence.<br/><strong>Results:</strong> Of 5710 patients included in the analysis (mean age 66 years), 71.4% initiated MITT and 28.6% initiated SITT (FF/UMEC/VI: 41.4%; FOR/BDP/GLY: 58.6%). Mean PDC was higher among SITT versus MITT users at all time points; at each time point, mean PDC was highest among FF/UMEC/VI users. During the first 6 months following treatment initiation, higher adherence was exhibited by FF/UMEC/VI (29%) and FOR/BDP/GLY (19%) users versus MITT users. Over the entire observation period, FF/UMEC/VI users had the highest proportion of persistent patients; at 18 months, 16.5% of FF/UMEC/VI users were persistent versus 2.3% of MITT users.<br/><strong>Conclusion:</strong> Patients initiating SITT in Germany had significantly higher adherence and persistence compared with patients initiating MITT over 6 to 18 months following treatment initiation. Among SITT, FF/UMEC/VI users had the highest proportion of adherence and persistence.<br/><br/><strong>Keywords:</strong> comparative, multiple- or single-inhaler triple therapy, new-user, proportion of days covered, real-world analysis, treatment discontinuation<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"14 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141941941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Network Pharmacology Followed by Experimental Validation to Explore the Mechanism of Stigmasterol in Sangbaipi Decoction Regulating PI3K/Akt Signaling to Alleviate Acute Exacerbation of Chronic Obstructive Pulmonary Disease","authors":"Haidong He, Shuihua Sun, Weihua Xu, Mingwan Zhang","doi":"10.2147/copd.s459814","DOIUrl":"https://doi.org/10.2147/copd.s459814","url":null,"abstract":"<strong>Purpose:</strong> Sangbaipi decoction (SBPD), a traditional Chinese medicine (TCM) prescription, has been widely used to treat acute exacerbation of chronic obstructive pulmonary disease (AECOPD), while the underlying pharmacological mechanism remains unclear due to the complexity of composition.<br/><strong>Methods:</strong> A TCM-active ingredient-drug target network of SBPD was constructed utilizing the TCM-Systems-Pharmacology database. AECOPD-relevant proteins were gathered from Gene Cards and the Online-Mendelian-Inheritance-in-Man database. Protein–protein interaction, GO and KEGG enrichment analyses of the targets from the intersection of SBPD and AECOPD targets were performed to identify the core signaling pathway, followed by molecular docking verification of its interaction with active ingredients. The network pharmacology results were checked using <em>in-vivo</em> experiments. To induce AECOPD, rats were exposure to combined tobacco smoke and lipopolysaccharide (LPS). Then rats underwent gavage with stigmasterol (SM) after successful modeling. The involvement of phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling was investigated using its inhibitor, LY294002. Lung function and histopathology were examined. The levels of inflammatory cytokines in the lung and serum were assessed by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), Western blot and/or Enzyme-linked immunosorbent assay (ELISA).<br/><strong>Results:</strong> SM was recognized as an active ingredient of SBPD and stably bound to Akt1. SM improved lung function and histological abnormalities, concomitant with suppressed PI3K/Akt signaling, downregulated lung and serum Interleukin 6 (IL-6) and tumor necrosis factor-α (TNF-α) levels and serum transforming growth factor-β (TGF-β) levels and upregulated lung and serum Interleukin 10 (IL-10) levels in AECOPD rats. In AECOPD rats, LY294002 restored lung function, and it also improved lung histological abnormalities and inflammation, which was found to be potentiated by SM.<br/><strong>Conclusion:</strong> SM targets PI3K/Akt signaling to reduce lung injury and inflammation in AECOPD rats.<br/><br/><strong>Keywords:</strong> sangbaipi decoction, stigmasterol, acute exacerbation of chronic obstructive pulmonary disease, PI3K/Akt signaling, lung inflammation<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"100 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141941942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Value of Lung Ultrasound Sonography B-Lines Quantification as a Marker of Heart Failure in COPD Exacerbation","authors":"Fadwa Lajili, Marwa Toumia, Adel Sekma, Khaoula Bel Haj Ali, Sarra Sassi, Asma Zorgati, Hajer Yaakoubi, Rym Youssef, Mohamed Habib Grissa, Kaouther Beltaief, Zied Mezgar, Mariem Khrouf, Ikram Chamtouri, Wahid Bouida, Hamdi Boubaker, Mohamed Amine Msolli, Zohra Dridi, Riadh Boukef, Semir Nouira","doi":"10.2147/copd.s447819","DOIUrl":"https://doi.org/10.2147/copd.s447819","url":null,"abstract":"<strong>Introduction:</strong> Identifying heart failure (HF) in acute exacerbation of chronic obstructive pulmonary disease (AECOPD) can be challenging. Lung ultrasound sonography (LUS) B-lines quantification has recently gained a large place in the diagnosis of HF, but its diagnostic performance in AECOPD remains poorly studied.<br/><strong>Purpose:</strong> This study aimed to assess the contribution of LUS B-lines score (LUS score) in the diagnosis of HF in AECOPD patients.<br/><strong>Patients and methods:</strong> This is a prospective cross-sectional multicenter cohort study including patients admitted to the emergency department for AECOPD. All included patients underwent LUS. A lung ultrasound score (LUS score) based on B-lines calculation was assessed. A cardiac origin of dyspnea was retained for a LUS score greater than 15. HF diagnosis was based on clinical examination, pro-brain natriuretic peptide levels, and echocardiographic findings. The LUS score diagnostic performance was assessed by receiver operating characteristic (ROC) curve, sensitivity, specificity, and likelihood ratio at the best cutoffs.<br/><strong>Results:</strong> We included 380 patients, mean age was 68± 11.6 years, sex ratio (M/F) 1.96. Patients were divided into two groups: the HF group [n=157 (41.4%)] and the non-HF group [n=223 (58.6%)]. Mean LUS score was higher in the HF group (26.8± 8.4 vs 15.3± 7.1; <em>p</em>&lt; 0.001). The mean LUS score in the HF patients with reduced LVEF was 29.2± 8.7, and was 24.5± 7.6 in the HF patients with preserved LVEF. LUS score area under ROC curve for the diagnosis of HF was 0.71 [0.65– 0.76]. The best sensitivity (89% [85.9– 92,1]) was observed at the threshold of 5; the best specificity (85% [81.4– 88.6]) was observed at the threshold of 30. Correlation between LUS score and E/E’ ratio was good (R=0.46, <em>p</em>=0.0001).<br/><strong>Conclusion:</strong> Our results suggest that LUS score could be helpful and should be considered in the diagnostic approach of HF in AECOPD patients, at least as a ruling in test.<br/><br/><strong>Keywords:</strong> chronic obstructive pulmonary disease, COPD, heart failure, dyspnea, lung ultrasound sonography<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"49 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in the Quantitative HRCT Characteristics of Patients with Asthma, COPD and Asthma–COPD Overlap and Their Relationships with Pulmonary Function","authors":"Dongzhu Lu, Huapeng Yu, Lichang Chen, Jinlan Lin, Shijie Chen, Yunjian Huang","doi":"10.2147/copd.s469956","DOIUrl":"https://doi.org/10.2147/copd.s469956","url":null,"abstract":"<strong>Purpose:</strong> We compared pulmonary function indices and quantitative CT parameters of airway remodeling, air trapping, and emphysema in asthmatic patients and patients with COPD and asthma–COPD overlap (ACO) and explored their relationships with airflow limitation.<br/><strong>Patients and Methods:</strong> Patients with asthma (n=48), COPD (n=52), and ACO (n=30) and controls (n=54) who completed pulmonary function tests and HRCT scans were retrospectively enrolled in our study. Quantitative CT analysis software was used to assess emphysema (LAA%), airway wall dimensions (wall area (WA), luminal area (LA), and wall area percentage (WA%)), and air trapping ((relative volume change of − 860 HU to − 950 HU (RVC_{− 860 to-950}) and the expiration-to-inspiration ratio of the mean lung density (MLD_E/I))). Differences in pulmonary function and HRCT parameters were compared among the groups. Spearman correlation analysis and regression analysis were utilized to explore structure‒function relationships.<br/><strong>Results:</strong> The LAA% in COPD and ACO patients was significantly greater than that in asthmatic patients and controls. The WA% and WA in COPD and ACO patients were greater than those in controls, whereas the WA% and LA between asthmatic patients and controls reached statistical significance. The RVC_{− 860 to − 950} levels decreased in the following order: ACO, COPD, and asthma. RVC_{− 860 to − 950} independently predicted FEV1% in asthmatic patients; LAA% and MLD_E/I in COPD patients; and LAA%, WA% and RVC_{− 860 to − 950} in ACO patients.<br/><strong>Conclusion:</strong> Comparable emphysema was observed in patients with COPD and ACO but not in asthmatic patients. All patients exhibited proximal airway remodeling. The bronchi were thickened outward in COPD and ACO patients but are thickened inward in asthmatic patients. Furthermore, air trapping in ACO patients was the most severe among all the groups. Indirect lung densitometry measurements might be more predictive of the degree of airflow limitation than direct airway measurements in obstructive airway diseases.<br/><br/><strong>Keywords:</strong> asthma, COPD, asthma-COPD overlap, quantitative HRCT, structure-function relationship<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"15 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141872988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dietary Beetroot Juice – Effects in Patients with COPD: A Review","authors":"Mingming Chen, Shuting Chang, Yunpeng Xu, Hong Guo, Jian Liu","doi":"10.2147/copd.s473397","DOIUrl":"https://doi.org/10.2147/copd.s473397","url":null,"abstract":"<strong>Abstract:</strong> Chronic Obstructive Pulmonary Disease (COPD) exerts a severe toll on human health and the economy, with high prevalence and mortality rates. The search for bioactive components effective in the treatment of COPD has become a focal point of research. Beetroot juice, readily accessible and cost-effective, is noted for its ability to enhance athletic performance and for its preventive and therapeutic impact on hypertension. Beetroot juice is a rich source of dietary nitrates and modulates physiological processes via the nitrate-nitrite- nitric oxide pathway, exerting multiple beneficial effects such as antihypertensive, bronchodilatory, anti-inflammatory, antioxidant, hypoglycemic, and lipid-lowering actions. This paper provides a review of the existing research on the effects of beetroot juice on COPD, summarizing its potential in enhancing exercise capacity, lowering blood pressure, improving vascular function, and ameliorating sleep quality among patients with COPD. The review serves as a reference for the prospective use of beetroot juice in the symptomatic improvement of COPD, as well as in the prevention of exacerbations and associated comorbidities.<br/><br/><strong>Keywords:</strong> chronic obstructive pulmonary disease, beetroot, nitrates, nitric oxide, exercise, vascular function<br/>","PeriodicalId":13792,"journal":{"name":"International Journal of Chronic Obstructive Pulmonary Disease","volume":"151 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}