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Zhang Y, Zheng SP, Hou YF, Jie XY, Wang D, Da HJ, Li HX, He J, Zhao HY, Liu JH, Ma Y, Qiang ZH, Li W, Zhang M, Shan H, Wu YY, Shi HY, Zeng L, Sun X, Liu Y. A predictive model for frequent exacerbator phenotype of acute exacerbations of chronic obstructive pulmonary disease. J Thorac Dis 2023; 15:6502-6514. [PMID: 38249857 PMCID: PMC10797373 DOI: 10.21037/jtd-23-931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/27/2023] [Indexed: 01/23/2024]
Abstract
Background The frequent exacerbator phenotype of acute exacerbations of chronic obstructive pulmonary disease (AECOPD) is characterized by experiencing at least two exacerbations per year, leading to a significant economic burden on healthcare systems worldwide. Although several biomarkers have been shown to be effective in assessing AECOPD severity in recent years, there is a lack of studies on markers to predict the frequent exacerbator phenotype of AECOPD. The current study aimed to develop a new predictive model for the frequent exacerbator phenotype of AECOPD based on rapid, inexpensive, and easily obtained routine markers. Methods This was a single-center, retrospective study that enrolled a total of 2,236 AECOPD patients. The participants were divided into two groups based on the frequency of exacerbations: infrequent group (n=1,827) and frequent group (n=409). They underwent a complete blood count, as well as blood biochemistry, blood lipid and coagulation testing, and general characteristics were also recorded. Univariate analysis and binary multivariate logistic regression analyses were used to explore independent risk factors for the frequent exacerbator phenotype of AECOPD, which could be used as components of a new predictive model. The receiver operator characteristic (ROC) curve was used to assess the predictive value of the new model, which consisted of all significant risk factors predicting the primary outcome. The nomogram risk prediction model was established using R software. Results Age, gender, length of stay (LOS), neutrophils, monocytes, eosinophils, direct bilirubin (DBil), gamma-glutamyl transferase (GGT), and the glucose-to-lymphocyte ratio (GLR) were independent risk factors for the frequent exacerbator phenotype of AECOPD. The area under the curve (AUC) of the new predictive model was 0.681 [95% confidence interval (CI): 0.653-0.708], and the sensitivity was 63.6% (95% CI: 58.9-68.2%) and the specificity was 65.0% (95% CI: 60.3-69.6%). Conclusions A new predictive model based on demographic characteristics and blood parameters can be used to predict the frequency of acute exacerbations in the management of chronic obstructive pulmonary disease (COPD).
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Affiliation(s)
- Yan Zhang
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Shu-Ping Zheng
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yang-Fan Hou
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xue-Yan Jie
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Dan Wang
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Hong-Ju Da
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Hong-Xin Li
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jin He
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Hong-Yan Zhao
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jiang-Hao Liu
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yu Ma
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zhi-Hui Qiang
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wei Li
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ming Zhang
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Hu Shan
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yuan-Yuan Wu
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Hong-Yang Shi
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Liang Zeng
- Chongqing Nanpeng Artificial Intelligence Technology Research Institute Co., Ltd., Chongqing, China
| | - Xin Sun
- Chongqing Nanpeng Artificial Intelligence Technology Research Institute Co., Ltd., Chongqing, China
| | - Yun Liu
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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Choi JY, Park YB, An TJ, Yoo KH, Rhee CK. Effect of Broncho-Vaxom (OM-85) on the frequency of chronic obstructive pulmonary disease (COPD) exacerbations. BMC Pulm Med 2023; 23:378. [PMID: 37805515 PMCID: PMC10559651 DOI: 10.1186/s12890-023-02665-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 09/19/2023] [Indexed: 10/09/2023] Open
Abstract
BACKGROUND Efforts have been made to reduce the risk of chronic obstructive pulmonary disease (COPD) exacerbations using a variety of measures. Broncho-Vaxom (BV) is an immunomodulating agent that has shown potential benefit by balancing between immune stimulation and regulation in patients with COPD. In this study, we evaluated the clinical efficacy of BV for reducing the risk of COPD exacerbations. METHODS This study was based on the Korean National Health Insurance database, which contains reimbursement information for almost the entire population of South Korea. We extracted data from 2016 to 2019 for patients started on BV during 2017-2018. We collected baseline data on demographics, comorbidities, inhaler use, hospital type, and insurance type 1 year before starting BV. We also analyzed exacerbation history, starting from the year before BV initiation. RESULTS In total, 238 patients were enrolled in this study. Their mean age was 69.2 ± 9.14 years, 79.8% were male, and 45% experienced at least one exacerbation. BV reduced the risk of moderate (odds ratio [OR] = 0.59, 95% confidence interval [CI]: 0.38-0.91) and moderate-to-severe exacerbations compared to pre- and post-BV (OR = 0.571, 95% CI: 0.37-0.89). BV use also reduced the incidence of moderate and moderate-to-severe exacerbations (incidence rate ratio [IRR] = 0.75, p = 0.03; and IRR = 0.77, p = 0.03, respectively). The use of BV was significantly delayed moderate exacerbations (hazard ratio = 0.68, p = 0.02), but not with moderate-to-severe or severe exacerbations. CONCLUSION The use of BV was associated with fewer moderate and moderate-to-severe exacerbations. Additionally, BV was associated with a delay in moderate COPD exacerbations.
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Affiliation(s)
- Joon Young Choi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Bum Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Tai Joon An
- Division of Pulmonology and Critical Care, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kwang Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, 120 Neungdong-Ro, Gwangjin-Gu, Seoul, 05030, Republic of Korea.
| | - Chin Kook Rhee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpodaero, Seochogu, Seoul, 06591, Republic of Korea.
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Liu D, Song Q, Zeng Y, Yi R, Liu Y, Li X, Chen Y, Cai S, Chen P. The Clinical Characteristics and Outcomes in Non-Frequent Exacerbation Patients with Chronic Obstructive Pulmonary Disease in the Chinese Population. Int J Chron Obstruct Pulmon Dis 2023; 18:1741-1751. [PMID: 37599897 PMCID: PMC10439774 DOI: 10.2147/copd.s417566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/24/2023] [Indexed: 08/22/2023] Open
Abstract
Background We analyzed the clinical characteristics and outcomes in non-frequent exacerbation patients with chronic obstructive pulmonary disease (COPD). Methods In this retrospective cohort study, we enrolled patients with stable COPD from 12 hospitals. Non-frequent exacerbation was defined as less than two times of exacerbations in the past year. The non-frequent exacerbation patients were classified into less and more symptomatic groups based on the COPD Assessment Test (CAT) and modified Medical Research Council (mMRC). Finally, the non-frequent exacerbation patients with less and more symptomatic were classified into the long-acting muscarinic antagonist (LAMA), long-acting β2-agonist (LABA)+inhaled corticosteroids (ICS), LABA+LAMA, and LABA+LAMA+ICS groups. Minimum clinically important difference (MCID) was defined as a CAT score decrease of ≥ 2 during six months of follow-up. We recorded the number of exacerbations and mortality during one year of follow-up. Results A total of 834 (67.5%) non-frequent exacerbation patients with COPD were included in this study. The non-frequent exacerbation patients had a higher education level and body mass index (BMI), and lower CAT and mMRC scores (P<0.05). In addition, the non-frequent exacerbation patients had lower mortality and risk of future exacerbation, and were more likely to attain MCID (P<0.05). Furthermore, the non-frequent exacerbation patients with more symptomatic COPD treated with LABA+LAMA or LABA+LAMA+ICS were more likely to attain MCID and had a lower risk of future exacerbation (P<0.05). However, there were no significant differences among the different inhalation therapies in non-frequent exacerbation patients with less symptomatic COPD. Conclusion The non-frequent exacerbation patients with COPD had a higher education level and BMI, a lower symptom burden, and better outcomes. In addition, LABA+LAMA should be recommended to non-frequent exacerbation patients with more symptomatic COPD, while mono-LAMA should be recommended to non-frequent exacerbation patients with less symptomatic COPD as the initial inhalation therapy.
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Affiliation(s)
- Dan Liu
- Department of Respiratory and Critical Care Medicine, Changsha Hospital of Traditional Chinese Medicine (Changsha Eighth Hospital), Changsha, Hunan, 410000, People’s Republic of China
| | - Qing Song
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Yuqin Zeng
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Rong Yi
- Department of Pulmonary and Critical Care Medicine, Zhuzhou Central Hospital, Zhuzhou, Hunan, 412000, People’s Republic of China
| | - Yi Liu
- Department of Pulmonary and Critical Care Medicine, Zhuzhou Central Hospital, Zhuzhou, Hunan, 412000, People’s Republic of China
| | - Xin Li
- Division 4 of Occupational Diseases, Hunan Prevention and Treatment Institute for Occupational Diseases, Changsha, Hunan, 412000, People’s Republic of China
| | - Yan Chen
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Shan Cai
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
| | - Ping Chen
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
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4
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Yang C, Yang L, Yang L, Li S, Ye L, Ye J, Chen C, Zeng Y, Zhu M, Lin X, Peng Q, Wang Y, Jin M. Plasma Proteomics Study Between the Frequent Exacerbation and Infrequent Exacerbation Phenotypes of Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2023; 18:1713-1728. [PMID: 37581107 PMCID: PMC10423573 DOI: 10.2147/copd.s408361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/09/2023] [Indexed: 08/16/2023] Open
Abstract
Background Frequent exacerbation (FE) and infrequent exacerbation (IE) are two phenotypes of chronic obstructive pulmonary disease (COPD), of which FE is associated with a higher incidence of exacerbation and a serious threat to human health. Because the pathogenesis mechanisms of FE are unclear, this study aims to identify FE-related proteins in the plasma via proteomics for use as predictive, diagnostic, and therapeutic biomarkers of COPD. Methods A cross-sectional study was conducted in which plasma protein profiles were analyzed in COPD patients at stable stage, and differentially expressed proteins (DEPs) were screened out between the FE and IE patients. FE-related DEPs were identified using data-independent acquisition-based proteomics and bioinformatics analyses. In addition, FE-related candidates were verified by enzyme-linked immunosorbent assay. Results In this study, 47 DEPs were screened out between the FE and IE groups, including 20 upregulated and 27 downregulated proteins. Key biological functions (eg, neutrophil degranulation, extracellular exosome, protein homodimerization activity) and signaling pathways (eg, arginine and proline metabolism) were enriched in association with the FE phenotype. Receiver operating characteristic (ROC) analysis of the 11 combined DEPs revealed an area under the curve of 0.985 (p <0.05) for discriminating FE from IE. Moreover, correlation and ROC curve analyses indicated that creatine kinase, M-type (CKM) and fat storage-inducing transmembrane protein 1 (FITM1) might be clinically significant in patients with the FE phenotype. In addition, plasma expression levels of CKM and FITM1 were validated to be significantly decreased in the FE group compared with the IE group (CKM: p <0.01; FITM1: p <0.05). Conclusion In this study, novel insights into COPD pathogenesis were provided by investigating and comparing plasma protein profiles between the FE and IE patients. CKM, FITM1, and a combinative biomarker panel may serve as useful tools for assisting in the precision diagnosis and effective treatment of the FE phenotype of COPD.
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Affiliation(s)
- Chengyu Yang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Huadong Hospital, Fudan University, Shanghai, 200040, People’s Republic of China
| | - Li Yang
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, People’s Republic of China
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, People’s Republic of China
| | - Lei Yang
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen, Guangdong, 518055, People’s Republic of China
| | - Shuiming Li
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen, Guangdong, 518055, People’s Republic of China
| | - Ling Ye
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
- Department of Allergy, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
| | - Jinfeng Ye
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen, Guangdong, 518055, People’s Republic of China
| | - Chengshui Chen
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, People’s Republic of China
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, the Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People’s Hospital, Zhejiang, 324000, People’s Republic of China
| | - Yiming Zeng
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Respiratory Medicine Center of Fujian Province, Quanzhou, Fujian, 362000, People’s Republic of China
| | - Mengchan Zhu
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
| | - Xiaoping Lin
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Respiratory Medicine Center of Fujian Province, Quanzhou, Fujian, 362000, People’s Republic of China
| | - Qing Peng
- Department of Pulmonary and Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai, 201199, People’s Republic of China
| | - Yun Wang
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen, Guangdong, 518055, People’s Republic of China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, Guangdong, 515041, People’s Republic of China
| | - Meiling Jin
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
- Department of Allergy, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
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5
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Zhu D, Dai H, Zhu H, Fang Y, Zhou H, Yang Z, Chu S, Xi Q. Identification of frequent acute exacerbations phenotype in COPD patients based on imaging and clinical characteristics. Respir Med 2023; 209:107150. [PMID: 36758904 DOI: 10.1016/j.rmed.2023.107150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a common disease with high morbidity, with acute exacerbations manifesting as a worsening of respiratory symptoms. This study aimed to identify the frequent acute exacerbation phenotype in patients with COPD based on imaging and clinical characteristics. METHODS Patients with COPD (n = 201) were monitored for acute exacerbations one year after their initial hospital admission and further divided into frequent and non-frequent exacerbation groups according to the frequency and severity of acute exacerbations. All patients underwent high resolution CT scans and low attenuation area less than -950Hu (LAA-950) in the whole lung was measured. Differences in visual subtypes, LAA-950, and clinical basic characteristics were compared between groups. The clinical factors influencing frequent exacerbation were determined using binary logistic regression. Finally, based on imaging and clinical factors, the receiver operating characteristic curve was used to identify the phenotype of COPD with frequent acute exacerbations. RESULTS Patients with frequent exacerbations had a larger LAA-950 than those non-frequent exacerbations patients (p<0.001). Frequent acute exacerbations were associated with worsening visual subtypes. Multivariate binary logistic regression illustrated that age, smoking status, BMI, FEV1 pred, and LAA-950 were associated with frequent exacerbations of COPD. The area under the receiver operating characteristic curve for predicting frequent exacerbations based on age, smoking status, BMI, FEV1 pred, and LAA-950 was 0.907 (p<0.001). CONCLUSION The combination of imaging and clinical characteristics reached high diagnostic efficacy in the identification of frequent acute exacerbations in patients with COPD.
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Affiliation(s)
- Dan Zhu
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Huiling Dai
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Haiyan Zhu
- Department of Radiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Yuang Fang
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huihui Zhou
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhangwei Yang
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuguang Chu
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Qian Xi
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
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6
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Lin L, Song Q, Cheng W, Liu C, Zhao YY, Duan JX, Li J, Liu D, Li X, Chen Y, Cai S, Chen P. Comparation of predictive value of CAT and change in CAT in the short term for future exacerbation of chronic obstructive pulmonary disease. Ann Med 2022; 54:875-885. [PMID: 35341416 PMCID: PMC8959516 DOI: 10.1080/07853890.2022.2055134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
PURPOSE Our study aimed to compare the predictive value of the COPD Assessment Test (CAT) score at baseline and short-term change in CAT for future exacerbations in chronic obstructive pulmonary disease (COPD) patients. METHODS This was a multicentre prospective study. Patients with COPD were recruited into the study and followed up for one year. CAT score and exacerbation in the previous year were collected at baseline. Change in CAT was defined as CAT score changing between baseline and the 6-month follow-up. Exacerbation was recorded during the one-year follow-up from 0th to 12th month. RESULT A total of 536 patients were enrolled for final analysis. The mean baseline CAT score was 14.5 ± 6.6 and the median (IQR) change in CAT was -2 (8). On Cox regression analysis, baseline CAT score, change in CAT and history of exacerbation were independent risk factors for exacerbation in the one-year follow-up. Compared with the r value of correlation between baseline CAT score and frequency of exacerbations during the one-year follow-up (r = 0.286, p < .001), that correlation between the change in CAT and frequency of exacerbations during follow-up was higher (r = 0.421, p < .001). The receiver operating characteristic (ROC) curves showed that change in CAT had a better predictive capacity for future exacerbation than baseline CAT (0.789 versus 0.609, p = .001). The ROC showed that change in CAT also had a better predictive capacity for future exacerbation than exacerbation in the previous year (0.789 versus 0.689, p = .011). CONCLUSION The correlation between baseline CAT score and future exacerbation was weak, however, the correlation between change in CAT and future exacerbation was moderate. Change in CAT in the short term had a better predictive value for future exacerbations of COPD than baseline CAT and exacerbation in the previous year.
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Affiliation(s)
- Ling Lin
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Qing Song
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Wei Cheng
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Cong Liu
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Yi-Yang Zhao
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Jia-Xi Duan
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Jing Li
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Dan Liu
- Department of Respiratory, The Eighth Hospital, Changsha, Hunan, China in
| | - Xin Li
- Division 4 of Occupational Diseases, Hunan Prevention and Treatment Institute for Occupational Diseases, Changsha, China
| | - Yan Chen
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Shan Cai
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Ping Chen
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
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7
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Pépin JL, Degano B, Tamisier R, Viglino D. Remote Monitoring for Prediction and Management of Acute Exacerbations in Chronic Obstructive Pulmonary Disease (AECOPD). Life (Basel) 2022; 12:life12040499. [PMID: 35454991 PMCID: PMC9028268 DOI: 10.3390/life12040499] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/14/2022] [Accepted: 03/27/2022] [Indexed: 11/21/2022] Open
Abstract
The progression of chronic obstructive pulmonary disease (COPD) is characterized by episodes of acute exacerbation (AECOPD) of symptoms, decline in respiratory function, and reduction in quality-of-life increasing morbi-mortality and often requiring hospitalization. Exacerbations can be triggered by environmental exposures, changes in lifestyle, and/or physiological and psychological factors to greater or lesser extents depending on the individual’s COPD phenotype. The prediction and early detection of an exacerbation might allow patients and physicians to better manage the acute phase. We summarize the recent scientific data on remote telemonitoring (TM) for the prediction and management of acute exacerbations in COPD patients. We discuss the components of remote monitoring platforms, including the integration of environmental monitoring data; patient reported outcomes collected via interactive Smartphone apps, with data from wearable devices that monitor physical activity, heart rate, etc.; and data from medical devices such as connected non-invasive ventilators. We consider how telemonitoring and the deluge of data it potentially generates could be combined with electronic health records to provide personalized care and multi-disease management for COPD patients.
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Affiliation(s)
- Jean-Louis Pépin
- HP2 Laboratory, Grenoble Alpes University, INSERM U1300, 38000 Grenoble, France; (B.D.); (R.T.); (D.V.)
- EFCR Laboratory, Thorax and Vessels Division, University Hospital of Grenoble Alpes, 38043 Grenoble, France
- Correspondence:
| | - Bruno Degano
- HP2 Laboratory, Grenoble Alpes University, INSERM U1300, 38000 Grenoble, France; (B.D.); (R.T.); (D.V.)
- EFCR Laboratory, Thorax and Vessels Division, University Hospital of Grenoble Alpes, 38043 Grenoble, France
| | - Renaud Tamisier
- HP2 Laboratory, Grenoble Alpes University, INSERM U1300, 38000 Grenoble, France; (B.D.); (R.T.); (D.V.)
- EFCR Laboratory, Thorax and Vessels Division, University Hospital of Grenoble Alpes, 38043 Grenoble, France
| | - Damien Viglino
- HP2 Laboratory, Grenoble Alpes University, INSERM U1300, 38000 Grenoble, France; (B.D.); (R.T.); (D.V.)
- Emergency Department, University Hospital of Grenoble Alpes, 38043 Grenoble, France
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Machine Learning Approaches for Predicting Acute Respiratory Failure, Ventilator Dependence, and Mortality in Chronic Obstructive Pulmonary Disease. Diagnostics (Basel) 2021; 11:diagnostics11122396. [PMID: 34943632 PMCID: PMC8700350 DOI: 10.3390/diagnostics11122396] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/26/2021] [Accepted: 12/18/2021] [Indexed: 01/21/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is one of the leading causes of mortality and contributes to high morbidity worldwide. Patients with COPD have a higher risk for acute respiratory failure, ventilator dependence, and mortality after hospitalization compared with the general population. Accurate and early risk detection will provide more information for early management and better decision making. This study aimed to build prediction models using patients’ characteristics, laboratory data, and comorbidities for early detection of acute respiratory failure, ventilator dependence, and mortality in patients with COPD after hospitalization. We retrospectively collected the electronic medical records of 5061 patients with COPD in three hospitals of the Chi Mei Medical Group, Taiwan. After data cleaning, we built three prediction models for acute respiratory failure, ventilator dependence, and mortality using seven machine learning algorithms. Based on the AUC value, the best model for mortality was built by the XGBoost algorithm (AUC = 0.817), the best model for acute respiratory failure was built by random forest algorithm (AUC = 0.804), while the best model for ventilator dependence was built by LightGBM algorithm (AUC = 0.809). A web service application was implemented with the best models and integrated into the existing hospital information system for physician’s trials and evaluations. Our machine learning models exhibit excellent predictive quality and can therefore provide physicians with a useful decision-making reference for the adverse prognosis of COPD patients.
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