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Allinson JP, Vlies BH, Brill SE, Law M, Burnside G, Finney LJ, Alves-Moreira L, Donaldson GC, Calverley PMA, Walker PP, Wedzicha JA. A Double-Blind, Randomized, Placebo-controlled Trial of Long-Term Doxycycline Therapy on Exacerbation Rate in Patients with Stable Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2023; 208:549-558. [PMID: 37450935 PMCID: PMC10492249 DOI: 10.1164/rccm.202212-2287oc] [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: 12/19/2022] [Accepted: 07/14/2023] [Indexed: 07/18/2023] Open
Abstract
Rationale: Chronic obstructive pulmonary disease (COPD) exacerbations are a major cause of morbidity and mortality, and preventing them is a key treatment target. Long-term macrolide treatment is effective at reducing exacerbations, but there is a paucity of evidence for other antibiotic classes. Objectives: To assess whether 12-month use of doxycycline reduces the exacerbation rate in people with COPD. Methods: People with moderate to very severe COPD and an exacerbation history were recruited from three UK centers and randomized to 12 months of doxycycline 100 mg once daily or placebo. The primary study outcome was the exacerbation rate per person-year. Results: A total of 222 people were randomized. Baseline mean FEV1 was 1.35 L (SD, 0.35 L), 52.5% predicted (SD, 15.9% predicted). The median number of treated exacerbations in the year before the study was 2 (SD, 1-4). A total of 71% of patients reported two or more exacerbations, and 81% were already prescribed inhaled corticosteroids at baseline. The COPD exacerbation rate did not differ between the groups (doxycycline/placebo rate ratio [RR], 0.86; 95% confidence interval [CI], 0.67-1.10; P = 0.23). No difference was seen if only treated exacerbations or hospitalizations were considered. In preplanned subgroup analysis, doxycycline appeared to better reduce the exacerbation rate among people with severe COPD (RR, 0.36; 95% CI, 0.15-0.85; P = 0.019) and in those with an eosinophil count <300 cells/μl (RR, 0.50; 95% CI, 0.29-0.84; P = 0.01). Health status measured by St. George's Respiratory Questionnaire was 5.2 points worse in the doxycycline group at 12 months (P < 0.007). Conclusions: Doxycycline did not significantly reduce the exacerbation rate, over 12 months, in participants with COPD who exacerbated regularly, but it may have benefitted those with more severe COPD or blood eosinophil counts <300 cells/μl. Clinical trial registered with www.clinicaltrials.gov (NCT02305940).
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Affiliation(s)
- James P. Allinson
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton Hospital, London, United Kingdom
| | | | - Simon E. Brill
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Martin Law
- Hub for Trials Methodology Research, Medical Research Council Biostatistics Unit, University of Cambridge, Cambridge, United Kingdom
| | - Girvan Burnside
- Department of Health Data Science, University of Liverpool, Liverpool, United Kingdom; and
| | - Lydia J. Finney
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Luana Alves-Moreira
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Gavin C. Donaldson
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | | | | | - Jadwiga A. Wedzicha
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
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Czira A, Purushotham S, Iheanacho I, Rothnie KJ, Compton C, Ismaila AS. Burden of Disease in Patients with Mild or Mild-to-Moderate Chronic Obstructive Pulmonary Disease (Global Initiative for Chronic Obstructive Lung Disease Group A or B): A Systematic Literature Review. Int J Chron Obstruct Pulmon Dis 2023; 18:719-731. [PMID: 37151760 PMCID: PMC10155715 DOI: 10.2147/copd.s394325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 04/06/2023] [Indexed: 05/09/2023] Open
Abstract
Background Patients with mild or mild-to-moderate chronic obstructive pulmonary disease (COPD), defined as Global Initiative for Chronic Obstructive Lung Disease (GOLD) group A/B, are regarded as having a lower risk of experiencing multiple or severe exacerbations compared with patients classified as GOLD group C/D. Current guidelines suggest that patients in GOLD A/B should commence treatment with a bronchodilator; however, some patients within this population who have a higher disease burden may benefit from earlier introduction of dual bronchodilator or inhaled corticosteroid-containing therapies. This study aimed to provide research-based insights into the burden of disease experienced by patients classified as GOLD A/B, and to identify characteristics associated with poorer outcomes. Methods A systematic literature review (SLR) was conducted to identify evidence (burden of disease and prevalence data) relating to the population of interest (patients with COPD classified as GOLD A/B). Results A total of 79 full-text publications and four conference abstracts were included. In general, the rates of moderate and severe exacerbations were higher among patients in GOLD group B than among those in group A. Among patients classified as GOLD A/B, the risk of exacerbation was higher in those with more symptoms (modified Medical Research Council or COPD Assessment Test scales) and more severe airflow limitation (forced expiratory volume in 1 second % predicted). Conclusion Data from this SLR provide clear evidence of a heavier burden of disease for patients in GOLD B, compared with those in GOLD A, and highlight factors associated with worse outcomes for patients in GOLD A/B.
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Affiliation(s)
- Alexandrosz Czira
- Value Evidence and Outcomes, R&D Global Medical, GSK, Brentford, UK
- Correspondence: Alexandrosz Czira, Value Evidence and Outcomes, R&D Global Medical, GSK, 980 Great West Road, Brentford, Middlesex, TW8 9GS, UK, Tel +44 7788 351610, Email
| | | | | | - Kieran J Rothnie
- Value Evidence and Outcomes, R&D Global Medical, GSK, Brentford, UK
| | | | - Afisi S Ismaila
- Value Evidence and Outcomes, GSK, Collegeville, PA, USA
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
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Trajectories of Severe Exacerbations of Chronic Obstructive Pulmonary Disease and Their Relationship with Mortality Risk. Lung 2022; 200:601-607. [PMID: 36065068 DOI: 10.1007/s00408-022-00565-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/23/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE Acute exacerbations of COPD (AECOPD) are important factors contributing to mortality risk. The rate of exacerbations varies overtime. An inconsistent pattern of exacerbation occurrence is a common finding. The mortality risk associated with such a pattern is not entirely clear. Our objective was to assess the risk of mortality associated with various possible patterns of AECOPD trajectories. METHODS This is a multicenter historical cohort study. Four different exacerbation trajectories were defined according to the incidence of severe AECOPD requiring hospital admission 2 years before and after the date of the first visit to the respiratory clinic-Consistent non-exacerbators (NEx): no AECOPD before or after the index date; consistent exacerbators (Ex): at least one AECOPD both before and after the index date; converters to exacerbators (CONV-Ex): no exacerbations before and at least one AECOPD after the index date; converters to non-exacerbators (CONV-NEx): at least one AECOPD before the index date, and no exacerbations after said date. All-cause mortality risk for these trajectories was assessed. RESULTS A total of 1713 subjects were included in the study: NEx: 1219 (71.2%), CONV-NEx: 225 (13.1%), CONV-Ex: 148 (8.6%), Ex: 121 (7.1%). After correcting for confounding variables, the group with the highest mortality risk was Ex. The CONV-Ex and CONV-Nex groups had a mortality risk between Ex and NEx, with no significant differences between them. CONCLUSION Different possible trajectories of severe AECOPD before and after a first specialized consultation are associated with different mortality risks. An inconsistent pattern of exacerbations has a mortality risk between Ex and NEx, with no clear differences between CONV-Ex and CONV-NEx.
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Jenkins CR. Towards precision in defining COPD exacerbations. Breathe (Sheff) 2022; 17:210081. [PMID: 35035551 PMCID: PMC8753624 DOI: 10.1183/20734735.0081-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 06/28/2021] [Indexed: 11/25/2022] Open
Abstract
COPD is the most prevalent chronic respiratory disease worldwide and a major cause of disability and death. Acute exacerbations of COPD remain a key feature of the disease in many patients and research assessing interventions to prevent and treat them requires a robust definition with high sensitivity and specificity. To date, no such definition exists, and multiple different definitions are used in clinical studies depending on the research question. The strengths and weaknesses of current definitions are discussed in the context of evolving knowledge and different settings in which studies are undertaken. Whether identification and recording of exacerbations remains essentially clinical, or can be identified with a dependable biomarker, it should be sensitive and adaptable to context while retaining clarity and facilitating data collection. This is essential to progress a better understanding of the pathophysiology and phenotypic expression of exacerbations to reduce their impact and personal burden for patients. COPD exacerbations carry high risk for long-term disability and death. As the search for a standardised measure continues, study investigators must ensure definitions are explicit and justified to better understand how to prevent and manage these episodes.https://bit.ly/2UNqScy
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Affiliation(s)
- Christine R Jenkins
- Respiratory Group, The George Institute for Global Health, Sydney, Australia.,UNSW Sydney, Sydney, Australia.,Concord Clinical School, University of Sydney, Sydney, Australia
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Wang H, Fu Z, Xu P, Gu X, Chen X, Yu W. Proton pump inhibitor treatment improves pulmonary function in acute exacerbations of COPD patients with 24-hour Dx-pH monitoring-diagnosed laryngopharyngeal reflux. CLINICAL RESPIRATORY JOURNAL 2021; 15:558-567. [PMID: 33751792 DOI: 10.1111/crj.13347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 03/04/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Chronic obstructive pulmonary disease (COPD) patients have higher laryngopharyngeal reflux (LPR)-related symptom incidence. But LPR treatment is empirical. We aimed to determine the frequency of LPR, diagnosed by 24-hour Dx-pH monitoring, among acute exacerbations of COPD (AECOPD) patients with Reflux Symptom Index (RSI) ≥13 and investigate proton pump inhibitor (PPI) treatment effect on LPR, COPD symptoms, and pulmonary function. METHODS From January 2016 to September 2017, 102 AECOPD patients with RSI ≥13 were enrolled. COPD assessment test (CAT), mMRC dyspnea scale, pulmonary function tests, and 24-hour Dx-pH monitoring were performed. The Ryan score was evaluated by using the Dx-pH DataView Lite software, which identifies patients with abnormal pharyngeal pH environments. Associations among RSI, pulmonary function test results, and Ryan score parameters were evaluated. The abovementioned assessments were reperformed after treatment, and pre- and posttreatment data were compared. RESULTS Of the 102 eligible patients, 49 (48.04%) were diagnosed with LPR based on Ryan score. Percentage of the forced expiratory volume at 1 second (FEV1%) was significantly worse in Ryan-positive than in Ryan-negative AECOPD patients. There were significant negative correlations between FEV1% and Ryan score (r = -0.394, P < 0.001), FEV1% and % time below pH threshold (r = -0.371, P < 0.001) in upright position but not in supine position. There was no significant correlation between RSI and Ryan score parameters. There were significant improvements in RSI, mMRC, CAT, and FEV1% in Ryan-positive AECOPD patients after PPI and basic treatments. CONCLUSION Study results indicate unreliability of RSI threshold for LPR diagnosis. Combination of symptoms, endoscopic findings, and 24-hour Dx-pH monitoring is recommended for LPR diagnosis and PPI treatment decisions, especially in difficult-to-control or severe COPD patients.
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Affiliation(s)
- Huaying Wang
- Department of Respiratory and Critical Care Medicine, Affiliated People's Hospital to Ningbo University, Yinzhou People's Hospital, Ningbo City, P.R. China
| | - Zhongming Fu
- Department of Respiratory and Critical Care Medicine, Affiliated People's Hospital to Ningbo University, Yinzhou People's Hospital, Ningbo City, P.R. China
| | - Peihong Xu
- Department of Respiratory and Critical Care Medicine, Affiliated People's Hospital to Ningbo University, Yinzhou People's Hospital, Ningbo City, P.R. China
| | - Xiao Gu
- Department of Respiratory and Critical Care Medicine, Affiliated People's Hospital to Ningbo University, Yinzhou People's Hospital, Ningbo City, P.R. China
| | - Xiaofei Chen
- Department of Respiratory and Critical Care Medicine, Affiliated People's Hospital to Ningbo University, Yinzhou People's Hospital, Ningbo City, P.R. China
| | - Wanjun Yu
- Department of Respiratory and Critical Care Medicine, Affiliated People's Hospital to Ningbo University, Yinzhou People's Hospital, Ningbo City, P.R. China
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Calle Rubio M, Rodriguez Hermosa JL, de Torres JP, Marín JM, Martínez-González C, Fuster A, Cosío BG, Peces-Barba G, Solanes I, Feu-Collado N, Lopez-Campos JL, Casanova C. COPD Clinical Control: predictors and long-term follow-up of the CHAIN cohort. Respir Res 2021; 22:36. [PMID: 33541356 PMCID: PMC7863480 DOI: 10.1186/s12931-021-01633-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/21/2021] [Indexed: 11/17/2022] Open
Abstract
Background Control in COPD is a dynamic concept that can reflect changes in patients’ clinical status that may have prognostic implications, but there is no information about changes in control status and its long-term consequences. Methods We classified 798 patients with COPD from the CHAIN cohort as controlled/uncontrolled at baseline and over 5 years. We describe the changes in control status in patients over long-term follow-up and analyze the factors that were associated with longitudinal control patterns and related survival using the Cox hazard analysis. Results 134 patients (16.8%) were considered persistently controlled, 248 (31.1%) persistently uncontrolled and 416 (52.1%) changed control status during follow-up. The variables significantly associated with persistent control were not requiring triple therapy at baseline and having a better quality of life. Annual changes in outcomes (health status, psychological status, airflow limitation) did not differ in patients, regardless of clinical control status. All-cause mortality was lower in persistently controlled patients (5.5% versus 19.1%, p = 0.001). The hazard ratio for all-cause mortality was 2.274 (95% CI 1.394–3.708; p = 0.001). Regarding pharmacological treatment, triple inhaled therapy was the most common option in persistently uncontrolled patients (72.2%). Patients with persistent disease control more frequently used bronchodilators for monotherapy (53%) at recruitment, although by the end of the follow-up period, 20% had scaled up their treatment, with triple therapy being the most frequent therapeutic pattern. Conclusions The evaluation of COPD control status provides relevant prognostic information on survival. There is important variability in clinical control status and only a small proportion of the patients had persistently good control. Changes in the treatment pattern may be relevant in the longitudinal pattern of COPD clinical control. Further studies in other populations should validate our results. Trial registration: Clinical Trials.gov: identifier NCT01122758.
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Affiliation(s)
- Myriam Calle Rubio
- Pulmonology Department, Hospital Clínico San Carlos, C/ Martin Lagos S/N, 28040, Madrid, Spain.,Medical Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Juan Luis Rodriguez Hermosa
- Pulmonology Department, Hospital Clínico San Carlos, C/ Martin Lagos S/N, 28040, Madrid, Spain. .,Medical Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain.
| | - Juan P de Torres
- Respirology and Sleep Division, Queen's University, Kingston, ON, Canada
| | - José María Marín
- Respiratory Department. Hospital, Universitario Miguel Servet and IISAragón, Ciber Enfermedades Respiratorias, Madrid, Spain
| | - Cristina Martínez-González
- Pulmonology Department, Hospital Universitario Central de Asturias, Universidad de Oviedo, Oviedo, Spain
| | - Antonia Fuster
- Pulmonology Department, Hospital Universitario Son Llàtzer, Palma de Mallorca, Spain
| | - Borja G Cosío
- Department of Respiratory Medicine, Hospital Universitario Son Espases-IdISBa and CIBERES, Palma de Mallorca, Spain
| | - Germán Peces-Barba
- Pulmonology Department, IIS-Fundación Jiménez Díaz-CIBERES, Madrid, Spain
| | - Ingrid Solanes
- Pulmonology Department, Hospital de La Santa Creu Y San Pau, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - Nuria Feu-Collado
- Pulmonology Department, Hospital Universitario Reina Sofía, Instituto Maimónides de Investigación Biomédica de Córdoba, Universidad de Córdoba, Córdoba, Spain
| | - Jose Luis Lopez-Campos
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocio, Universidad de Sevilla, CIBERES, Seville, Spain
| | - Ciro Casanova
- Pulmonology Department, Hospital Universitario Nuestra Señora de Candelaria, Universidad de La Laguna, Tenerife, Spain
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7
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Jenkins CR. Bringing COPD control into the consultation. Respirology 2020; 25:1110-1111. [DOI: 10.1111/resp.13884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/02/2020] [Indexed: 11/30/2022]
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8
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Welch L, Orlando R, Lin SX, Vassilev I, Rogers A. Findings from a pilot randomised trial of a social network self-management intervention in COPD. BMC Pulm Med 2020; 20:162. [PMID: 32513163 PMCID: PMC7278059 DOI: 10.1186/s12890-020-1130-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 04/02/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Self-Management Support (SMS), refers to the actions taken by individuals to recognise and manage their own health. It is increasingly recognised that individuals with chronic obstructive pulmonary disease (COPD) require additional support with their Self-management. Emerging evidence suggests that the use of a social network intervention can improve health outcomes and increase quality of life. In order to understand the potential benefits of SMS in COPD, the GENIE (Generating Engagement in Network Support) SMS tool was implemented and evaluated in a COPD primary care context. The GENIE intervention is a social networking tool that consists of 3 parts; a concentric circle modelling to map existing social networks; a questions sections to elicit preferences for activities; a map of selected resources is then produced, aligned with the user's interests and suggestions for connections to existing network members and to new resources. METHODS A pilot, parallel, single blind, block randomised controlled trial. Patients with COPD ranging from mild-very severe were recruited. Participants provided written consent and were then randomised to either the intervention or usual care. The primary aim was to understand the clinical benefit through the analysis of health status, symptom burden and quality of life. The secondary outcome measure was health utilisation. NHS cost differences were reported between groups using the GENIE intervention over usual care. RESULTS The GENIE pilot results demonstrate maintenance in health status and clinical symptoms with a decrease in anxiety. An overall increase in quality of life was observed, these findings did not reach significance. A cost reduction was demonstrated in inpatient stay with no difference in primary care costs. Overall a cost reduction in NHS service utilisation was indicated in the intervention group. CONCLUSION This pilot study indicated that using a social network intervention can encourage the development of new social connections and extend existing support networks for COPD patients. Increasing network support in this population is of benefit to both patients and NHS providers in terms of cost reductions and enhancing wellbeing. This broadens the understanding of possible new approaches to SMS in community COPD patients, which could now be investigated in a larger population over a longer period. TRIAL REGISTRATION Clinical Trials.gov PRS National Library of Medicine. Protocol ID number: 19175, Clinical Trial ID: NCT02935452.
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Affiliation(s)
- Lindsay Welch
- NIHR Wessex CLARHC, Southampton, UK
- University of Southampton, Faculty of Environmental and Life Sciences, School of Health Sciences, Building 67, University Road, Southampton, SO17 1BJ UK
- Solent University, School of Sport, Health and Social Sciences, RM 126, East Park Terrace, Southampton, SO14 0YN UK
| | - Rosanna Orlando
- NIHR Wessex CLARHC, Southampton, UK
- University of Southampton, Faculty of Environmental and Life Sciences, School of Health Sciences, Building 67, University Road, Southampton, SO17 1BJ UK
| | - Sharon X. Lin
- NIHR Wessex CLARHC, Southampton, UK
- University of Southampton, Faculty of Environmental and Life Sciences, School of Health Sciences, Building 67, University Road, Southampton, SO17 1BJ UK
| | - Ivaylo Vassilev
- NIHR Wessex CLARHC, Southampton, UK
- University of Southampton, Faculty of Environmental and Life Sciences, School of Health Sciences, Building 67, University Road, Southampton, SO17 1BJ UK
| | - Anne Rogers
- NIHR Wessex CLARHC, Southampton, UK
- University of Southampton, Faculty of Environmental and Life Sciences, School of Health Sciences, Building 67, University Road, Southampton, SO17 1BJ UK
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Recio Iglesias J, Díez-Manglano J, López García F, Díaz Peromingo JA, Almagro P, Varela Aguilar JM. Management of the COPD Patient with Comorbidities: An Experts Recommendation Document. Int J Chron Obstruct Pulmon Dis 2020; 15:1015-1037. [PMID: 32440113 PMCID: PMC7217705 DOI: 10.2147/copd.s242009] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/10/2020] [Indexed: 12/11/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is associated with multiple comorbidities, which impact negatively on patients and are often underdiagnosed, thus lacking a proper management due to the absence of clear guidelines. Purpose To elaborate expert recommendations aimed to help healthcare professionals to provide the right care for treating COPD patients with comorbidities. Methods A modified RAND-UCLA appropriateness method consisting of nominal groups to draw up consensus recommendations (6 Spanish experts) and 2-Delphi rounds to validate them (23 Spanish experts) was performed. Results A panel of Spanish internal medicine experts reached consensus on 73 recommendations and 81 conclusions on the clinical consequences of the presence of comorbidities. In general, the experts reached consensus on the issues raised with regard to cardiovascular comorbidity and metabolic disorders. Consensus was reached on the use of selective serotonin reuptake inhibitors in cases of depression and the usefulness of referring patients with anxiety to respiratory rehabilitation programmes. The results also showed consensus on the usefulness of investigating the quality of sleep, the treatment of pain with opioids and the evaluation of osteoporosis by lateral chest radiography. Conclusion This study provides conclusions and recommendations that are intended to improve the management of the complexity of patients with COPD and important comorbidities, usually excluded from clinical trials.
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Affiliation(s)
- Jesús Recio Iglesias
- Internal Medicine Department, Quironsalud Valencia Hospital, Valencia, Valencian Community, Spain
| | - Jesús Díez-Manglano
- Internal Medicine Department, Royo Villanova Hospital, Zaragoza, Aragon, Spain
| | - Francisco López García
- Internal Medicine Department General University Hospital of Elche, Alicante, Valencian Community, Spain
| | - José Antonio Díaz Peromingo
- Internal Medicine Department, University Clinical Hospital of Santiago de Compostela, a Coruña, Galicia, Spain
| | - Pere Almagro
- Internal Medicine Department, Mútua Terrassa University Hospital, Terrassa, Barcelona, Catalonia, Spain
| | - José Manuel Varela Aguilar
- Internal Medicine Department, University Hospital Virgen del Rocío, Seville, Andalusia, Spain.,CIBER of Epidemiology and Public Health, Madrid, Community of Madrid, Spain
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Jenkins AR, Holden NS, Gibbons LP, Jones AW. Clinical Outcomes and Inflammatory Responses of the Frequent Exacerbator in Pulmonary Rehabilitation: A Prospective Cohort Study. COPD 2020; 17:253-260. [DOI: 10.1080/15412555.2020.1753669] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alex R. Jenkins
- Division of Respiratory Medicine, University of Nottingham, UK
- Lincoln International Institute for Rural Health, University of Lincoln, Lincoln, UK
| | - Neil S. Holden
- School of Life Sciences, University of Lincoln, Lincoln, UK
| | - Luke P. Gibbons
- Countywide Community Respiratory Service, Lincolnshire Community Health Services NHS Trust, Lincoln, UK
| | - Arwel W. Jones
- Lincoln International Institute for Rural Health, University of Lincoln, Lincoln, UK
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Cavailles A, Melloni B, Motola S, Dayde F, Laurent M, Le Lay K, Caumette D, Luciani L, Lleu PL, Berthon G, Flament T. Identification of Patient Profiles with High Risk of Hospital Re-Admissions for Acute COPD Exacerbations (AECOPD) in France Using a Machine Learning Model. Int J Chron Obstruct Pulmon Dis 2020; 15:949-962. [PMID: 32431495 PMCID: PMC7198446 DOI: 10.2147/copd.s236787] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose To characterise patients with chronic obstructive pulmonary disease (COPD) who are rehospitalised for an acute exacerbation, to estimate the cost of these hospitalisations, to characterise high risk patient sub groups and to identify factors potentially associated with the risk of rehospitalisation. Patients and Methods This was a retrospective study using the French National Hospital Discharge Database. All patients aged ≥40 years hospitalised for an acute exacerbation of COPD between 2015 and 2016 were identified and followed for six months. Patients with at least one rehospitalisation for acute exacerbation of COPD constituted the rehospitalisation analysis population. A machine learning model was built to study the factors associated with the risk of rehospitalisation using decision tree analysis. A direct cost analysis was performed from the perspective of national health insurance. Results A total of 143,006 eligible patients were hospitalised for an acute exacerbation of COPD (AECOPD) in 2015–2016 (mean age: 74 years; 62.1% men). 25,090 (18.8%) were rehospitalised for another exacerbation within six months. In this study, 8.5% of patients died during or immediately following the index hospitalisation and 10.5% died during or immediately after rehospitalisation (p <0.001). The specific cost of these rehospitalisations was € 5304. The overall total cost per patient of all AECOPD-related stays was € 9623, being significantly higher in patients who were rehospitalised (€ 16,275) compared to those who were not (€ 8208). In decision tree analysis, the most important driver of rehospitalisation was hospitalisation in the previous two years (contributing 85% of the information). Conclusion Rehospitalisations for acute exacerbations of COPD carry a high epidemiological and economic burden. Since hospitalisation for an acute exacerbation is the most important determinant of future rehospitalisations, management of COPD needs to focus on interventions aimed at decreasing the rehospitalisation risk of in order to lower the burden of disease.
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Affiliation(s)
- Arnaud Cavailles
- Service de Pneumologie, Institut du Thorax, CHU de Nantes, Nantes, France
| | - Boris Melloni
- Service de Pneumologie, CHU Dupuytren, Limoges, France
| | | | | | | | | | - Didier Caumette
- Institutional and Hospital Partnership, Boehringer Ingelheim, Paris, France
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12
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Lakhotia B, Mahon R, Gutzwiller FS, Danyliv A, Nikolaev I, Thokala P. Modelling the Cost-Effectiveness of Indacaterol/Glycopyrronium versus Salmeterol/Fluticasone Using a Novel Markov Exacerbation-Based Approach. Int J Chron Obstruct Pulmon Dis 2020; 15:787-797. [PMID: 32368025 PMCID: PMC7174156 DOI: 10.2147/copd.s247156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/30/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose Exacerbations drive outcomes and costs in chronic obstructive pulmonary disease (COPD). While patient-level (micro) simulation cost-effectiveness models have been developed that include exacerbations, such models are complex. We developed a novel, exacerbation-based model to assess the cost-effectiveness of indacaterol/glycopyrronium (IND/GLY) versus salmeterol/fluticasone (SFC) in COPD, using a Markov structure as a simplification of a previously validated microsimulation model. Methods The Markov model included three health states: infrequent or frequent exacerbator (IE or FE; ≤1 or ≥2 moderate/severe exacerbations in prior 12 months, respectively), or death. The model used data from the FLAME study and was run over a 10-year horizon. Cycle length was 1 year, after which patients remained in the same health state or transitioned to another. Analysis was conducted from a Swedish payer's perspective (Swedish healthcare costs, converted into Euros), with incremental costs and quality-adjusted life-years (QALYs) calculated (discounted 3% annually). Results At all post-baseline timepoints, IND/GLY was associated with more patients in the IE health state and fewer patients in the FE and dead states relative to SFC. Over a 10-year period, IND/GLY was associated with a cost saving of €1,887/patient, an incremental benefit of 0.142 QALYs, and an addition of 0.057 life-years, compared with SFC. Conclusion This Markov model represents a novel cost-effectiveness analysis for COPD, with simpler methodology than prior microsimulation models, while retaining exacerbations as drivers of disease progression. In patients with COPD with a history of exacerbations in the previous year, IND/GLY is a cost-effective treatment option compared with SFC.
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13
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Ponce-Gallegos MA, Pérez-Rubio G, Ambrocio-Ortiz E, Partida-Zavala N, Hernández-Zenteno R, Flores-Trujillo F, García-Gómez L, Hernández-Pérez A, Ramírez-Venegas A, Falfán-Valencia R. Genetic variants in IL17A and serum levels of IL-17A are associated with COPD related to tobacco smoking and biomass burning. Sci Rep 2020; 10:784. [PMID: 31964947 PMCID: PMC6972744 DOI: 10.1038/s41598-020-57606-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 12/06/2019] [Indexed: 11/08/2022] Open
Abstract
IL-17A is an important pro-inflammatory cytokine involved in the inflammatory response in chronic obstructive pulmonary disease (COPD). To evaluate the role played by single nucleotide polymorphisms of IL17A and protein levels in susceptibility to COPD, 1,807 subjects were included in a case-control study; 436 had COPD related to tobacco smoking (COPD-S) and 190 had COPD related to biomass burning (COPD-BB). Six hundred fifty-seven smokers without COPD (SWOC) and 183 biomass burning-exposed subjects (BBES) served as the respective control groups. The CC genotype and C allele of rs8193036 were associated with COPD (COPD-S vs. SWOC: p < 0.05; OR = 3.01, and OR = 1.28, respectively), as well as a recessive model (p < 0.01; OR = 2.91). Significant differences in serum levels were identified between COPD-S vs. SWOC, COPD-S vs. COPD-BB, and SWOC vs. BBES (p < 0.01). By comparing genotypes in the COPD-BB group TT vs. CC and TC vs. CC (p < 0.05), we found lower levels for the CC genotype. Logistic regression analysis by co-variables was performed, keeping the associations between COPD-S vs. SWOC with both polymorphisms evaluated (p < 0.05), as well as in COPD-BB vs. BBES but with a reduced risk of exacerbation (p < 0.05). In conclusion, polymorphisms in IL17A are associated with COPD. Serum levels of IL-17A were higher in smokers with and without COPD.
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Affiliation(s)
- Marco A Ponce-Gallegos
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Gloria Pérez-Rubio
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Enrique Ambrocio-Ortiz
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Neftali Partida-Zavala
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Rafael Hernández-Zenteno
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Fernando Flores-Trujillo
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Leonor García-Gómez
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Andrea Hernández-Pérez
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico
| | - Alejandra Ramírez-Venegas
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico.
| | - Ramcés Falfán-Valencia
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, 14080, Mexico.
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14
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Time to Understand the Infrequency of the Frequent Exacerbator Phenotype in COPD. Chest 2019; 153:1087-1088. [PMID: 29731034 DOI: 10.1016/j.chest.2018.01.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 11/21/2022] Open
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15
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Martinez FJ, Han MK, Allinson JP, Barr RG, Boucher RC, Calverley PMA, Celli BR, Christenson SA, Crystal RG, Fagerås M, Freeman CM, Groenke L, Hoffman EA, Kesimer M, Kostikas K, Paine R, Rafii S, Rennard SI, Segal LN, Shaykhiev R, Stevenson C, Tal-Singer R, Vestbo J, Woodruff PG, Curtis JL, Wedzicha JA. At the Root: Defining and Halting Progression of Early Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2019; 197:1540-1551. [PMID: 29406779 DOI: 10.1164/rccm.201710-2028pp] [Citation(s) in RCA: 161] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Fernando J Martinez
- 1 Weill Cornell Medical College, New York, New York.,2 University of Michigan School of Medicine, Ann Arbor, Michigan
| | - MeiLan K Han
- 2 University of Michigan School of Medicine, Ann Arbor, Michigan
| | | | | | | | | | | | | | | | | | - Christine M Freeman
- 2 University of Michigan School of Medicine, Ann Arbor, Michigan.,10 Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
| | | | - Eric A Hoffman
- 12 University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Mehmet Kesimer
- 5 University of North Carolina, Chapel Hill, North Carolina
| | | | - Robert Paine
- 14 University of Utah, Salt Lake City, Utah.,15 Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah
| | - Shahin Rafii
- 1 Weill Cornell Medical College, New York, New York
| | | | | | | | | | | | | | | | - Jeffrey L Curtis
- 2 University of Michigan School of Medicine, Ann Arbor, Michigan.,10 Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
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16
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Çolak Y, Afzal S, Marott JL, Nordestgaard BG, Vestbo J, Ingebrigtsen TS, Lange P. Prognosis of COPD depends on severity of exacerbation history: A population-based analysis. Respir Med 2019; 155:141-147. [PMID: 31362177 DOI: 10.1016/j.rmed.2019.07.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Differences in previous exacerbation history may influence prognosis of chronic obstructive pulmonary disease (COPD). We hypothesized that prognosis differs between individuals with a history of only medically treated exacerbations (moderate exacerbations) and those with a history of hospitalised exacerbations (severe exacerbations). METHODS We included 98 614 adults from the Copenhagen General Population Study and assessed risk of moderate and severe exacerbations, pneumonia hospitalisation, and respiratory and all-cause mortality from 2003 until 2013 according to exacerbation history. RESULTS Among 6545 individuals with COPD, 6290 had no exacerbations in the preceding year, 109 had one moderate exacerbation, 108 had two or more moderate exacerbations, and 38 had one or more severe exacerbations. During 9.4 years of follow-up, we observed 926 moderate and 244 severe exacerbations, 477 pneumonias, and 707 deaths, including 69 from respiratory disease. Compared to individuals without previous exacerbations, lung function and symptom adjusted hazard ratios (HRs) for future moderate exacerbation were 4.68 (95% confidence interval:3.31-6.62) for individuals with one previous moderate exacerbation, 21 (13-33) for individuals with two or more previous moderate exacerbations, and 5.30 (3.44-8.15) for individuals with one or more previous severe exacerbations. Corresponding HRs were 1.62(0.78-3.34), 1.29(0.57-2.89), and 5.43 (2.56-12) for severe exacerbation, 1.86(1.06-3.27), 1.74(1.01-2.99), and 4.85 (2.94-8.02) for pneumonia, 0.53(0.10-2.99), 1.65(0.53-5.17), and 2.98 (1.14-7.83) for respiratory mortality, and 1.34(0.79-2.29), 1.57(1.00-2.47), and 1.49 (0.85-2.62) for all-cause mortality, respectively. CONCLUSION Individuals with COPD and a history of hospitalised exacerbations carried the poorest prognosis compared to those with a history of only medically treated exacerbations, suggesting difference in risk profile.
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Affiliation(s)
- Yunus Çolak
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, and the Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Shoaib Afzal
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, and the Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jacob L Marott
- The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, and the Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, and the Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jørgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, And Manchester University NHS Foundation Trust, Manchester, United Kingdom
| | - Truls S Ingebrigtsen
- The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, and the Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Medical Unit, Respiratory Section, Hvidovre Hospital, Copenhagen University Hospital, Hvidovre, Denmark
| | - Peter Lange
- The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, and the Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Public Health, Section of Epidemiology, University of Copenhagen, Copenhagen, Denmark; Department of Internal Medicine, Section of Respiratory Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.
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17
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Jo YS, Kim SK, Park SJ, Um SJ, Park YB, Jung KS, Kim DK, Yoo KH. Longitudinal change of FEV 1 and inspiratory capacity: clinical implication and relevance to exacerbation risk in patients with COPD. Int J Chron Obstruct Pulmon Dis 2019; 14:361-369. [PMID: 30787605 PMCID: PMC6366360 DOI: 10.2147/copd.s189384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background and objective FEV1 is the gold standard for assessment of COPD. We compared efficacy of FEV1, inspiratory capacity (IC), and IC to total lung capacity (TLC) ratio in the evaluation of COPD and their association with exacerbation. Methods We analyzed the association of dyspnea severity, quality of life status, and lung function with lung function measurements and exacerbation risk in 982 patients enrolled in the Korea COPD Subgroup Registry and Subtype Research study. Exacerbation and longitudinal lung function change were evaluated in 3 years’ follow-up. Results The FEV1, IC, and IC to TLC ratio showed comparable negative correlations with dyspnea severity and quality of life status, and positive correlation with exercise capacity. In patients with >2 events/year, annual rate of change in FEV1 and IC tended to decline more rapidly in those with FEV1 <50% than in those with FEV1 >50% (−14.46±19.40 mL/year vs 12.29±9.24 mL/year, P=0.213; −4.75±17.28 mL/year vs −78.05±34.16 mL/year, P=0.056 for FEV1 and IC, respectively), without significance. Conclusion Longitudinal changes in IC and FEV1 were not significantly associated with exacerbation risk.
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Affiliation(s)
- Yong Suk Jo
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Sung Kyoung Kim
- Department of Internal Medicine, Division of Pulmonology, St Vincent's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seoung Ju Park
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Soo-Jung Um
- Department of Internal Medicine, Division of Pulmonology, Dong-A University Hospital, Busan, Republic of Korea
| | - Yong-Bum Park
- Department of Internal Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Republic of Korea
| | - Ki Suck Jung
- Department of Internal Medicine, Division of Pulmonary Medicine, Hallym University Sacred Heart Hospital, Hallym University Medical School, Anyang, Republic of Korea
| | - Deog Kyeom Kim
- Department of Internal Medicine, Seoul Metropolitan Government, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Kwang Ha Yoo
- Department of Internal Medicine, Division of Pulmonary and Allergy Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea,
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18
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Breyer-Kohansal R, Hartl S, Breyer MK, Schrott A, Studnicka M, Neunhäuserer D, Fülöp G, Burghuber OC. The European COPD audit : Adherence to guidelines, readmission risk and hospital care for acute exacerbations in Austria. Wien Klin Wochenschr 2019; 131:97-103. [PMID: 30689047 DOI: 10.1007/s00508-019-1441-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 01/05/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are the major reason for COPD hospitalization and increased risk for readmissions. The organizational structure of Austrian hospitals provides the opportunity to investigate the impact of specialized respiratory care compared to general care on adherence to guidelines and readmission in AECOPD. METHODS The data from the European COPD audit, a prospective observational non-interventional cohort trial were analyzed. In total, 823 patients admitted due to AECOPD in 26 hospitals (specialized respiratory care vs. general care) within Austria were included. Patients characteristics and outcomes (length of stay, readmission rate, and mortality) were analyzed in relation to hospital resources (personnel and equipment) and adherence to international guidelines. RESULTS Patients admitted to general care had more comorbidities (Charlson comorbidity index: 2.6 ± 1.7 vs. 2.0 ± 1.4; p < 0.05) and a shorter length of stay (10.7 ± 7.8 days vs. 12.0 ± 10.2 days; p < 0.05). Patients admitted to specialized respiratory care more often underwent blood gas analysis and non-invasive ventilation (98.4% vs. 81.5% and 68.6% vs. 26.7%, p < 0.01; respectively). In multivariate analysis, the risk for AECOPD readmission was lower (odds ratio, OR 0.72 [0.51;0.91]; p < 0.05) in patients admitted to specialized respiratory care. CONCLUSION A greater adherence to COPD guidelines with respect to blood gas analysis and non-invasive ventilation and decreased AECOPD readmission risk was observed for patients admitted to specialized respiratory care. Adherence to guidelines may have the potential to decrease COPD readmission rates.
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Affiliation(s)
- Robab Breyer-Kohansal
- 1st Department of Respiratory and Critical Care Medicine, Ludwig Boltzmann Institute for COPD and Respiratory Epidemiology, Otto Wagner Hospital, Sanatoriumstraße 2, 1140, Vienna, Austria.
| | - Sylvia Hartl
- 2nd Department of Respiratory and Critical Care Medicine, Otto Wagner Hospital, Vienna, Austria.,Faculty of Medicine, Sigmund Freud University, Vienna, Austria
| | - Marie-Kathrin Breyer
- 1st Department of Respiratory and Critical Care Medicine, Ludwig Boltzmann Institute for COPD and Respiratory Epidemiology, Otto Wagner Hospital, Sanatoriumstraße 2, 1140, Vienna, Austria
| | | | - Michael Studnicka
- University Clinic of Respiratory Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Daniel Neunhäuserer
- University Clinic of Respiratory Medicine, Paracelsus Medical University, Salzburg, Austria
| | | | - Otto Chris Burghuber
- 1st Department of Respiratory and Critical Care Medicine, Ludwig Boltzmann Institute for COPD and Respiratory Epidemiology, Otto Wagner Hospital, Sanatoriumstraße 2, 1140, Vienna, Austria.,Faculty of Medicine, Sigmund Freud University, Vienna, Austria
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19
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Mansfield C, Sutphin J, Shriner K, Criner GJ, Celli BR. Patient Preferences for Endobronchial Valve Treatment of Severe Emphysema. CHRONIC OBSTRUCTIVE PULMONARY DISEASES-JOURNAL OF THE COPD FOUNDATION 2018; 6:51-63. [PMID: 30775424 DOI: 10.15326/jcopdf.6.1.2018.0147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background: Patients with severe emphysema have limited treatment options. Little is known about patients' willingness to accept risks for new treatments that offer meaningful benefits. Methods: We determined treatment preferences of patients with severe emphysema using a web-based discrete-choice experiment survey. Respondents answered 9 questions that offered choices between 2 hypothetical interventional treatments or continuing current medical management. Variations in 5 attributes defined the 2 interventional treatments: improvement in ability to breathe and carry out day-to-day activities, frequency of hospitalized exacerbations, treatment type, risk of pneumothorax within 30 days of procedure, and risk of death within 3 months. Respondents were recruited through the COPD Foundation's COPD Patient-Powered Research Network and had a self-reported emphysema diagnosis and 2+ score on the modified Medical Research Council Dyspnea Scale. The relative importance of the attributes and the percentage of respondents who would select different treatment options was modeled using random-parameters logit. Results: Among 294 respondents, 51% always chose an interventional treatment option, while 19% always selected continued medical management. The most important change on average was moving from continued medical management (with no improvement in breathlessness) to an interventional treatment with improvement in breathlessness. The model predicted 71% of respondents would select a treatment option similar to removable endobronchial valve implants, 6% would select lung volume reduction surgery (LVRS), and 23% continued medical management. Conclusion: Patients with severe emphysema perceive that a procedure with risks and benefits similar to the Zephyr® endobronchial valve implants is desirable over continued medical management or LVRS.
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Affiliation(s)
- Carol Mansfield
- RTI Health Solutions, Research Triangle Park, North Carolina
| | - Jessie Sutphin
- RTI Health Solutions, Research Triangle Park, North Carolina
| | | | - Gerard J Criner
- Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Bartolome R Celli
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
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20
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Kim V, Aaron SD. What is a COPD exacerbation? Current definitions, pitfalls, challenges and opportunities for improvement. Eur Respir J 2018; 52:13993003.01261-2018. [PMID: 30237306 DOI: 10.1183/13993003.01261-2018] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/12/2018] [Indexed: 01/02/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic illness that can be periodically punctuated by exacerbations, characterised by acute worsening of symptoms, including increased dyspnoea, cough, sputum production and sputum purulence. COPD exacerbations are common and have important clinical and economic consequences, including lost work productivity, increased utilisation of healthcare resources, temporary or permanent reductions in lung function and exercise capacity, hospitalisation, and sometimes death. Over the past two decades, clinicians and researchers have broadened their treatment goals for COPD to extend beyond improving lung function and symptoms, and have begun to address the importance of preventing and reducing exacerbations. However, despite the best efforts of clinicians and guideline committees, current definitions of COPD exacerbations are imperfect and fraught with problems. The cardinal symptoms of a COPD exacerbation are nonspecific and can result from acute cardiorespiratory illnesses other than COPD. A proposed definition, which may be more specific than current definitions, suggests that COPD exacerbation be defined as an acute or subacute worsening of dyspnoea (≥5 on a visual analogue scale that ranges from 0 to 10) sometimes but not necessarily accompanied by increased cough, sputum volume and/or sputum purulence. Necessary laboratory criteria for an exacerbation include oxygen desaturation ≤4% below that of stable state, elevated levels of circulating blood neutrophils or eosinophils (≥9000 neutrophils·mm-3 or ≥2% blood eosinophils) and elevated C-reactive protein (≥3 mg·L-1), without evidence of pneumonia or pulmonary oedema on chest radiography and with negative laboratory test results for other aetiologies. Herein, we discuss the current state of the art with respect to how we define COPD exacerbations, associated pitfalls and challenges, and opportunities for improvement.
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Affiliation(s)
- Victor Kim
- Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Shawn D Aaron
- The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
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21
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Lopez-Campos JL, Carrasco Hernández L, Muñoz X, Bustamante V, Barreiro E. Current controversies in the stepping up and stepping down of inhaled therapies for COPD at the patient level. Respirology 2018; 23:818-827. [PMID: 29924458 DOI: 10.1111/resp.13341] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 05/21/2018] [Accepted: 05/23/2018] [Indexed: 12/23/2022]
Abstract
The implementation of potential new step-up or step-down treatment recommendations in response to current guidelines is one of the main challenges currently faced in actual daily practice settings. In the present narrative review, we aim to discuss the relevance of these step-up and step-down proposals at the patient level in daily clinical practice. In particular, we aim to review the challenges associated with inhaled maintenance therapy for chronic obstructive pulmonary disease (COPD) in four clinical scenarios. First, we discuss the step up from single to double bronchodilation, including current controversies regarding the addition of a second bronchodilator versus initial treatment with two bronchodilators. Second, we discuss the step up from double bronchodilation to triple therapy while challenging current indications for inhaled steroid therapy and discussing triple therapy designs. Third, we discuss the step down from triple therapy to double bronchodilation while evaluating the effect of this downshift in risk categories on the patient according to the new classifications. Finally, we discuss the step down from double to single bronchodilation, with a special focus on safety. We believe this review will help to highlight the most relevant discussion points regarding the treatment of COPD in a manner that will stimulate and guide related clinical research.
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Affiliation(s)
- Jose Luis Lopez-Campos
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Sevilla, Spain
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Laura Carrasco Hernández
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Sevilla, Spain
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Xavier Muñoz
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Pulmonology Service, Department of Medicine, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Víctor Bustamante
- Servicio de Neumología, Hospital Universitario Basurto, Osakidetza, Departamento de Medicina, EHU-University of the Basque Country, Vizcaya, Spain
| | - Esther Barreiro
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Pulmonology Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), Barcelona, Spain
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22
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Abstract
Pheno-/endotyping chronic obstructive pulmonary disease (COPD) is really important because it provides patients with precise and personalized medicine. The central concept of precision medicine is to take individual variability into account when making management decisions. Precision medicine should ensure that patients get the right treatment at the right dose at the right time, with minimum harmful consequences and maximum efficacy. Ideally, we should search for genetic and molecular biomarker-based profiles. Given the clinical complexity of COPD, it seems likely that a panel of several biomarkers will be required to characterize pathogenetic factors and their course over time. The need for biomarkers to guide the clinical care of individuals with COPD and to enhance the possibilities of success in drug development is clear and urgent, but biomarker development is tremendously challenging and expensive, and translation of research efforts to date has been largely ineffective. Furthermore, the development of personalized treatments will require a much more detailed understanding of the clinical and biological heterogeneity of COPD. Therefore, we are still far from being able to apply precision medicine in COPD and the treatable traits and FEV1-free approaches are attempts to precision medicine in COPD that must be considered still quite unsophisticated.
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23
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Calverley PMA, Tetzlaff K, Dusser D, Wise RA, Mueller A, Metzdorf N, Anzueto A. Determinants of exacerbation risk in patients with COPD in the TIOSPIR study. Int J Chron Obstruct Pulmon Dis 2017; 12:3391-3405. [PMID: 29238184 PMCID: PMC5713692 DOI: 10.2147/copd.s145814] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Exacerbation history is used to grade the risk of COPD exacerbation, but its reliability and relationship to other risk factors and prior therapy is unclear. To examine these interrelationships, we conducted a post hoc analysis of patients in the TIOSPIR trial with ≥2 years' follow-up or who died on treatment. PATIENTS AND METHODS Patients were grouped by their annual exacerbation rate on treatment into nonexacerbators, infrequent, and frequent exacerbators (annual exacerbation rates 0, ≤1, and >1, respectively), and baseline characteristics discriminating among the groups were determined. We used univariate and multivariate analyses to explore the effect of baseline characteristics on risk of exacerbation, hospitalization (severe exacerbation), and death (all causes). RESULTS Of 13,591 patients, 6,559 (48.3%) were nonexacerbators, 4,568 (33.6%) were infrequent exacerbators, and 2,464 (18.1%) were frequent exacerbators; 45% of patients without exacerbations in the previous year exacerbated on treatment. Multivariate analysis identified baseline pulmonary maintenance medication as a predictive factor of increased exacerbation risk, with inhaled corticosteroid treatment associated with increased exacerbation risk irrespective of exacerbation history. CONCLUSION Our data confirm established risk factors for exacerbation, but highlight the limitations of exacerbation history when categorizing patients and the importance of prior treatment when identifying exacerbation risk.
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Affiliation(s)
- Peter MA Calverley
- Clinical Science Centre, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK
| | - Kay Tetzlaff
- Respiratory Medicine, Boehringer Ingelheim Pharma GmbH, Ingelheim am Rhein, Germany
| | - Daniel Dusser
- Department of Pneumology, Hôpital Cochin, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Robert A Wise
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Achim Mueller
- Biostatistics and Data Sciences Europe, Boehringer Ingelheim Pharma GmbH, Biberach an der Riss, Germany
| | - Norbert Metzdorf
- Respiratory Medicine, Boehringer Ingelheim Pharma GmbH, Ingelheim am Rhein, Germany
| | - Antonio Anzueto
- Pulmonary Medicine and Critical Care, University of Texas Health Sciences Center and South Texas Veterans’ Health Care System, San Antonio, TX, USA
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McCamley JD, Pisciotta EJ, Yentes JM, Wurdeman SR, Rennard SI, Pipinos II, Johanning JM, Myers SA. Gait deficiencies associated with peripheral artery disease are different than chronic obstructive pulmonary disease. Gait Posture 2017; 57:258-264. [PMID: 28683417 PMCID: PMC5563974 DOI: 10.1016/j.gaitpost.2017.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/17/2017] [Accepted: 06/20/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Previous studies have indicated that patients with peripheral artery disease (PAD), display significant differences in their kinetic and kinematic gait characteristics when compared to healthy, aged-matched controls. The ability of patients with chronic obstructive pulmonary disease (COPD) to ambulate is also limited. These limitations are likely due to pathology-driven muscle morphology and physiology alterations establish in PAD and COP, respectively. Gait changes in PAD were compared to gait changes due to COPD to further understand how altered limb muscle due to disease can alter walking patterns. Both groups were independently compared to healthy controls. It was hypothesized that both patients with PAD and COPD would demonstrate similar differences in gait when compared to healthy controls. METHODS Patients with PAD (n=25), patients with COPD (n=16), and healthy older control subjects (n=25) performed five walking trials at self-selected speeds. Sagittal plane joint kinematic and kinetic group means were compared. RESULTS Peak values for hip flexion angle, braking impulse, and propulsive impulse were significantly reduced in patients with symptomatic PAD compared to patients with COPD. After adjusting for walking velocity, significant reductions (p<0.05) in the peak values for hip flexion angle, dorsiflexor moment, ankle power generation, propulsion force, braking impulse, and propulsive impulse were found in patients with PAD compared to healthy controls. No significant differences were observed between patients with COPD and controls. CONCLUSIONS The results of this study demonstrate that while gait patterns are impaired for patients with PAD, this is not apparent for patients with COPD (without PAD). PAD (without COPD) causes changes to the muscle function of the lower limbs that affects gait even when subjects walk from a fully rested state. Altered muscle function in patients with COPD does not have a similar effect.
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Affiliation(s)
- John D. McCamley
- Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, NE, USA
| | - Eric J. Pisciotta
- Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, NE, USA
| | - Jennifer M. Yentes
- Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, NE, USA,Corresponding author at: Biomechanics Research Building, University of Nebraska at Omaha, 6160 University Drive South, Omaha, NE 68182-0860, USA. (S.A. Myers)
| | - Shane R. Wurdeman
- Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, NE, USA,Hanger Inc, Houston, TX, USA
| | - Stephen I. Rennard
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of Nebraska Medical Center, Omaha, NE, USA,Clinical Discovery Unit, AstraZeneca, Cambridge, UK
| | - Iraklis I. Pipinos
- Department of Surgery, Omaha Veterans’ Affairs Medical Center, Omaha, NE, USA,College of Medicine, Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jason M. Johanning
- Department of Surgery, Omaha Veterans’ Affairs Medical Center, Omaha, NE, USA,College of Medicine, Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sara A. Myers
- Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, NE, USA,Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of Nebraska Medical Center, Omaha, NE, USA
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25
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Han MK, Quibrera PM, Carretta EE, Barr RG, Bleecker ER, Bowler RP, Cooper CB, Comellas A, Couper DJ, Curtis JL, Criner G, Dransfield MT, Hansel NN, Hoffman EA, Kanner RE, Krishnan JA, Martinez CH, Pirozzi CB, O'Neal WK, Rennard S, Tashkin DP, Wedzicha JA, Woodruff P, Paine R, Martinez FJ. Frequency of exacerbations in patients with chronic obstructive pulmonary disease: an analysis of the SPIROMICS cohort. THE LANCET. RESPIRATORY MEDICINE 2017; 5:619-626. [PMID: 28668356 PMCID: PMC5558856 DOI: 10.1016/s2213-2600(17)30207-2] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/15/2017] [Accepted: 05/17/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND Present treatment strategies to stratify exacerbation risk in patients with chronic obstructive pulmonary disease (COPD) rely on a history of two or more events in the previous year. We aimed to understand year to year variability in exacerbations and factors associated with consistent exacerbations over time. METHODS In this longitudinal, prospective analysis of exacerbations in the Subpopulations and Intermediate Outcome Measures in COPD Study (SPIROMICS) cohort, we analysed patients aged 40-80 years with COPD for whom 3 years of prospective data were available, identified through various means including care at academic and non-academic medical centres, word of mouth, and existing patient registries. Participants were enrolled in the study between Nov 12, 2010, and July 31, 2015. We classified patients according to yearly exacerbation frequency: no exacerbations in any year; one exacerbation in every year during 3 years of follow-up; and those with inconsistent exacerbations (individuals who had both years with exacerbations and years without during the 3 years of follow-up). Participants were characterised by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) spirometric category (1-4) on the basis of post-bronchodilator FEV1. Stepwise logistic regression was used to compare factors associated with one or more acute exacerbations of COPD every year for 3 years versus no exacerbations in the same timeframe. Additionally, a stepwise zero-inflated negative binomial model was used to assess predictors of exacerbation count during follow-up in all patients with available data. Baseline symptom burden was assessed with the COPD assessment test. This trial is registered with ClinicalTrials.gov, number NCT01969344. FINDINGS 2981 patients were enrolled during the study. 1843 patients had COPD, of which 1105 patients had 3 years of complete, prospective follow-up data. 538 (49%) of 1105 patients had at least one acute exacerbation during the 3 years of follow-up, whereas 567 (51%) had none. 82 (7%) of 1105 patients had at least one acute exacerbation each year, whereas only 23 (2%) had two or more acute exacerbations in each year. An inconsistent pattern (both years with and without acute exacerbations) was common (456 [41%] of the group), particularly among GOLD stages 3 and 4 patients (256 [56%] of 456). In logistic regression, consistent acute exacerbations (≥1 event per year for 3 years) were associated with higher baseline symptom burden, previous exacerbations, greater evidence of small airway abnormality on CT, lower interleukin-15 concentrations, and higher interleukin-8 concentrations, than were no acute exacerbations. INTERPRETATION Although acute exacerbations are common, the exacerbation status of most individuals varies markedly from year to year. Among patients who had any acute exacerbation over 3 years, very few repeatedly had two or more events per year. In addition to symptoms and history of exacerbations in the year before study enrolment, we identified several novel biomarkers associated with consistent exacerbations, including CT-defined small airway abnormality, and interleukin-15 and interleukin-8 concentrations. FUNDING National Institutes of Health, and National Heart, Lung, and Blood Institute.
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Affiliation(s)
- MeiLan K Han
- Division of Pulmonary and Critical Care, Michigan Medicine, Ann Arbor, MI, USA.
| | - Pedro M Quibrera
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Elizabeth E Carretta
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - R Graham Barr
- Department of Medicine, Columbia University, New York, NY, USA
| | - Eugene R Bleecker
- Center for Genomics and Personalized Medicine Research, Department of Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - Russell P Bowler
- Division of Pulmonary and Critical Care, National Jewish, Denver, CO, USA
| | - Christopher B Cooper
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Alejandro Comellas
- Division of Pulmonary and Critical Care, University of Iowa, Iowa City, IA, USA
| | - David J Couper
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care, Michigan Medicine, Ann Arbor, MI, USA; Section of Pulmonary and Critical Care Medicine, Medical Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - Gerard Criner
- Department of Thoracic Medicine, Temple University, Philadelphia, PA, USA
| | - Mark T Dransfield
- Division of Pulmonary and Critical Care, University of Alabama, Birmingham, AL, USA
| | - Nadia N Hansel
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Eric A Hoffman
- Department of Radiology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Richard E Kanner
- Department of Medicine, Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Jerry A Krishnan
- Division of Pulmonary and Critical Care, University of Illinois, Chicago, IL, USA
| | - Carlos H Martinez
- Division of Pulmonary and Critical Care, Michigan Medicine, Ann Arbor, MI, USA
| | - Cheryl B Pirozzi
- Department of Medicine, Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Wanda K O'Neal
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Stephen Rennard
- Department of Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Early Clinical Development, AstraZeneca, Cambridge, UK
| | - Donald P Tashkin
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | | | - Prescott Woodruff
- Cardiovascular Research Institute, Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
| | - Robert Paine
- Department of Medicine, Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA; Section of Pulmonary and Critical Care Medicine, Salt Lake City Department of Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Fernando J Martinez
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medical College, New York, NY, USA
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Cheng Y, Tu X, Pan L, Lu S, Xing M, Li L, Chen X. Clinical characteristics of chronic bronchitic, emphysematous and ACOS phenotypes in COPD patients with frequent exacerbations. Int J Chron Obstruct Pulmon Dis 2017; 12:2069-2074. [PMID: 28790809 PMCID: PMC5530062 DOI: 10.2147/copd.s140231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Purpose Chronic bronchitis (CB), emphysematous (EM) and asthma–chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) phenotypes in COPD are well recognized. This study aimed to investigate distinguishing characteristics of these phenotypes in COPD patients with frequent exacerbations (FE). Patients and methods A retrospective study was carried out. COPD patients with acute exacerbations were consecutively reviewed from November 2015 to October 2016. Patients were divided into FE and infrequent exacerbations (iFE) subgroups. Results A total of 142 eligible COPD subjects were reviewed. In the CB phenotype subgroup, age, body mass index, forced expiratory volume in 1 second (FEV1) % predicted, COPD assessment test (CAT), modified Medical Research Council breathlessness measurement (mMRC) dyspnea scale, emphysema scores and arterial carbon dioxide pressure (PaCO2) were significantly different in subjects with FE when compared to those in subjects with iFE of CB. In the EM phenotype subgroup, age, CAT, mMRC scores and history of COPD were different in subjects with FE when compared to those in CB subjects with iFE. Multivariate analysis indicated that FEV1% predicted (odds ratio [OR] =0.90, P=0.04) and PaCO2 (OR =1.22, P=0.02) were independent risk factors for FE in COPD with CB phenotype, and CAT (OR =2.601, P=0.001) was the independent risk factor for FE in COPD with EM phenotype. No significant differences in characteristics were observed in ACOS phenotype subgroups with FE or iFE. Conclusion In CB or EM phenotypes, COPD patients with FE present several differential clinical characteristics compared to patients with iFE, while the characteristics of ACOS phenotype in patients with FE need more investigation.
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Affiliation(s)
- Yusheng Cheng
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Xiongwen Tu
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Linlin Pan
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Shuai Lu
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Ming Xing
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Linlin Li
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Xingwu Chen
- Department of Respiratory Medicine, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
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Abstract
Chronic Obstructive Pulmonary Disease (COPD) is a heterogeneous and complex disease with great morbidity and mortality. Despite the new developments in the managements of COPD, it was recognized that not all patients benefit from the available medications. Therefore, efforts to identify subgroups or phenotypes had been made in order to predict who will respond to a class of drugs for COPD. This review will discuss phenotypes, endotypes, and subgroups such as the frequent exacerbator, the one with systemic inflammation, the fast decliner, ACOS, and the one with co-morbidities and their impact on therapy. It became apparent, that the "inflammatory" phenotypes: frequent exacerbator, chronic bronchitic, and those with a number of co-morbidities need inhaled corticosteroids; in contrast, the emphysematous type with dyspnea and lung hyperinflation, the fast decliner, need dual bronchodilation (deflators). However, larger, well designed studies clustering COPD patients are needed, in order to identify the important subgroups and thus, to lead to personalize management in COPD.
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Affiliation(s)
| | - Alexandru Corlateanu
- b Department of Respiratory Medicine , State University of Medicine and Pharmacy "Nicolae Testemitanu" , Chisinau , Moldova , Republic of Moldova
| | - Evangelia Fouka
- c Pulmonary Department of Aristotle University G. Papanikolaou Hospital , Thessaloniki , Greece
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28
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Tabberer M, Gonzalez-McQuire S, Muellerova H, Briggs AH, Rutten-van Mölken MPMH, Chambers M, Lomas DA. Development of a Conceptual Model of Disease Progression for Use in Economic Modeling of Chronic Obstructive Pulmonary Disease. Med Decis Making 2017; 37:440-452. [PMID: 27486218 DOI: 10.1177/0272989x16662009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND To develop and validate a new conceptual model (CM) of chronic obstructive pulmonary disease (COPD) for use in disease progression and economic modeling. The CM identifies and describes qualitative associations between disease attributes, progression and outcomes. METHODS A literature review was performed to identify any published CMs or literature reporting the impact and association of COPD disease attributes with outcomes. After critical analysis of the literature, a Steering Group of experts from the disciplines of health economics, epidemiology and clinical medicine was convened to develop a draft CM, which was refined using a Delphi process. The refined CM was validated by testing for associations between attributes using data from the Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints (ECLIPSE). RESULTS Disease progression attributes included in the final CM were history and occurrence of exacerbations, lung function, exercise capacity, signs and symptoms (cough, sputum, dyspnea), cardiovascular disease comorbidities, 'other' comorbidities (including depression), body composition (body mass index), fibrinogen as a biomarker, smoking and demographic characteristics (age, gender). Mortality and health-related quality of life were determined to be the most relevant final outcome measures for this model, intended to be the foundation of an economic model of COPD. CONCLUSION The CM is being used as the foundation for developing a new COPD model of disease progression and to provide a framework for the analysis of patient-level data. The CM is available as a reference for the implementation of further disease progression and economic models.
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Affiliation(s)
- Maggie Tabberer
- Value Evidence and Outcomes, GSK R&D, Stockley Park, UK (MT)
| | - Sebastian Gonzalez-McQuire
- Formerly Global Health Outcomes, GSK R&D, Stockley Park, UK (SGM)
- ICON Health Economics, Morristown, NJ, USA (AHB)
| | | | - Andrew H Briggs
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK (AHB)
- ICON Health Economics, Morristown, NJ, USA (AHB)
| | - Maureen P M H Rutten-van Mölken
- Institute for Medical Technology Assessment, Erasmus University/Erasmus Medical Centre, Rotterdam, The Netherlands (MPMHRvM)
| | | | - David A Lomas
- Wolfson Institute for Biomedical Research, University College London, London, UK (DAL)
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Stability of the frequent COPD exacerbator in the general population: A Danish nationwide register-based study. NPJ Prim Care Respir Med 2017; 27:25. [PMID: 28416794 PMCID: PMC5435093 DOI: 10.1038/s41533-017-0029-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 03/14/2017] [Accepted: 03/21/2017] [Indexed: 11/08/2022] Open
Abstract
Exacerbation frequency is central in treatment strategies for chronic obstructive pulmonary disease. However, whether chronic obstructive pulmonary disease patients from the general population with frequent exacerbations continue to have frequent exacerbations over an extended period of time is currently unknown. In this study, we aimed to investigate the stability of the frequent exacerbator in a population-based setting. To this end, we conducted a nationwide register-based descriptive study with a 10-year follow-up period of chronic obstructive pulmonary disease patients with at least one medically treated exacerbation in 2003. Each subsequent year, we divided the population into frequent, infrequent and non-exacerbators and quantified the flow between categories. Further, we estimated the percentage of frequent exacerbators at baseline who stayed in this category each year during a 5-year follow-up. We identified 19,752 patients with chronic obstructive pulmonary disease and an exacerbation in 2003. Thirty percent were frequent exacerbators. Overall, the majority of exacerbators in 2003 were non-exacerbators in the following years (60% in 2004 increasing to 68% in 2012). Approximately half of frequent exacerbators in one year experienced a decrease in exacerbation frequency and had either zero or one exacerbation in the subsequent year. This pattern was stable throughout follow-up. During a 5-year follow-up period, a substantial proportion (42%) of frequent exacerbators in 2003 had no additional years as frequent exacerbators, while the minority (6%) remained in this category each year. In conclusion, the rate of exacerbations shows considerable variation over time among chronic obstructive pulmonary disease patients in the general population. This might hold implications for chronic obstructive pulmonary disease treatment guidelines and their practical application. Patients with chronic obstructive pulmonary disease (COPD) who suffer from frequent exacerbations do not necessarily persist with such severity over time. Exacerbations in COPD are defined by worsening respiratory symptoms that result in changes to treatment, hospitalization and, at worst, death. However, clarity is needed on whether frequent exacerbations is a stable feature of some patients’ disease. Mette Reilev at the University of Southern Denmark and co-workers followed, over 10 years, 19,752 COPD patients living in Denmark who suffered at least one exacerbation in 2003. By 2004, 60% of patients were classed as infrequent or non-exacerbators, rising to 68% by 2012. Very few patients remained “frequent exacerbators”, suggesting the rate of exacerbations changes considerably over time. This could hold implications for COPD treatment and challenge assumptions made about disease progression.
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Dilektasli AG, Demirdogen Cetinoglu E, Uzaslan E, Budak F, Coskun F, Ursavas A, Ercan I, Ege E. Serum CCL-18 level is a risk factor for COPD exacerbations requiring hospitalization. Int J Chron Obstruct Pulmon Dis 2017; 12:199-208. [PMID: 28115842 PMCID: PMC5221541 DOI: 10.2147/copd.s118424] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Chemokine (C-C motif) ligand 18 (CCL-18) has been shown to be elevated in chronic obstructive pulmonary disease (COPD) patients. This study primarily aimed to evaluate whether the serum CCL-18 level differentiates the frequent exacerbator COPD phenotype from infrequent exacerbators. The secondary aim was to investigate whether serum CCL-18 level is a risk factor for exacerbations requiring hospitalization. Materials and methods Clinically stable COPD patients and participants with smoking history but normal spirometry (NSp) were recruited for the study. Modified Medical Research Council Dyspnea Scale, COPD Assessment Test, spirometry, and 6-min walking test were performed. Serum CCL-18 levels were measured with a commercial ELISA Kit. Results Sixty COPD patients and 20 NSp patients were recruited. Serum CCL-18 levels were higher in COPD patients than those in NSp patients (169 vs 94 ng/mL, P<0.0001). CCL-18 level was significantly correlated with the number of exacerbations (r=0.30, P=0.026), although a difference in CCL-18 values between infrequent and frequent exacerbator COPD (168 vs 196 ng/mL) subgroups did not achieve statistical significance (P=0.09). Serum CCL-18 levels were significantly higher in COPD patients who had experienced at least one exacerbation during the previous 12 months. Overall, ROC analysis revealed that a serum CCL-18 level of 181.71 ng/mL could differentiate COPD patients with hospitalized exacerbations from those who were not hospitalized with a 88% sensitivity and 88.2% specificity (area under curve: 0.92). Serum CCL-18 level had a strong correlation with the frequency of exacerbations requiring hospitalization (r=0.68, P<0.0001) and was found to be an independent risk factor for hospitalized exacerbations in the multivariable analysis. Conclusion CCL-18 is a promising biomarker in COPD, as it is associated with frequency of exacerbations, particularly with severe COPD exacerbations requiring hospitalization, as well as with functional parameters and symptom scores.
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Affiliation(s)
| | | | | | | | | | | | - Ilker Ercan
- Department of Biostatistics, Uludag University Faculty of Medicine, Bursa, Turkey
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Ying J, Dutta J, Guo N, Hu C, Zhou D, Sitek A, Li Q. Classification of Exacerbation Frequency in the COPDGene Cohort Using Deep Learning With Deep Belief Networks. IEEE J Biomed Health Inform 2016; 24:1805-1813. [PMID: 28026794 DOI: 10.1109/jbhi.2016.2642944] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This study aims to develop an automatic classifier based on deep learning for exacerbation frequency in patients with chronic obstructive pulmonary disease (COPD). A three-layer deep belief network (DBN) with two hidden layers and one visible layer was employed to develop classification models and the models' robustness to exacerbation was analyzed. Subjects from the COPDGene cohort were labeled with exacerbation frequency, defined as the number of exacerbation events per year. A total of 10 300 subjects with 361 features each were included in the analysis. After feature selection and parameter optimization, the proposed classification method achieved an accuracy of 91.99%, using a ten-fold cross validation experiment. The analysis of DBN weights showed that there was a good visual spatial relationship between the underlying critical features of different layers. Our findings show that the most sensitive features obtained from the DBN weights are consistent with the consensus showed by clinical rules and standards for COPD diagnostics. We, thus, demonstrate that DBN is a competitive tool for exacerbation risk assessment for patients suffering from COPD.
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Multilevel, Dynamic Chronic Obstructive Pulmonary Disease Heterogeneity. A Challenge for Personalized Medicine. Ann Am Thorac Soc 2016; 13 Suppl 2:S466-S470. [DOI: 10.1513/annalsats.201605-372aw] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Abstract
Chronic obstructive pulmonary disease (COPD) exacerbations are important events that contribute to worsening health status, disease progression, and mortality. They are mainly triggered by respiratory viruses (especially rhinovirus, the cause of the common cold), but airway bacteria are also involved in their pathogenesis. Exacerbations are associated with both airway and systemic inflammation and, this is mainly neutrophilic in origin. Some patients are especially prone to develop exacerbations, and these have been identified as a high-risk group with increased airway inflammation and greater disease progression. Management of acute exacerbations involves therapy with oral corticosteroids and/or antibiotics, and new therapies are needed. A number of interventions may prevent exacerbations, including vaccination, long-acting bronchodilators, antiinflammatory agents, and long-term antibiotic therapy. Understanding of the pathophysiological mechanisms of COPD exacerbations is important to develop novel therapies.
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Alahmari AD, Kowlessar BS, Patel AR, Mackay AJ, Allinson JP, Wedzicha JA, Donaldson GC. Physical activity and exercise capacity in patients with moderate COPD exacerbations. Eur Respir J 2016; 48:340-9. [DOI: 10.1183/13993003.01105-2015] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 03/03/2016] [Indexed: 11/05/2022]
Abstract
Little is known about changes in physical activity during moderate (out-patient managed) exacerbations.6-min walking distance (6MWD) was measured during 50 exacerbations when the patients were stable, and at 3 and 7 days post-exacerbation presentation. At similar time points, quadriceps maximum voluntary contraction (QMVC) was measured during 47 different exacerbations. Physical activity (SenseWear; Bodymedia Inc., Pittsburgh, PA, USA) was recorded over 2 consecutive-week periods post-presentation.6MWD fell from a median 422 m when stable to 373 m on day 3 (p=0.001). Similarly, QMVC fell from 32.6 versus 29.7 kg (p=0.026). Falls in 6MWD were associated with a rise in C-reactive protein (r= −0.364; p=0.041) and increased Functional Assessment of Chronic Illness Therapy–Fatigue (FACIT-F) (r= −0.44; p=0.013). Light physical activity was 2.18 h·day−1 during the first week post-exacerbation and was less over week 2 (1.98 h·day−1; p=0.009). Patients who had attended pulmonary rehabilitation had smaller changes in 6MWD than those who had not attended (−35.0 versus −114.9 m; p=0.013). Falls in physical activity were correlated with higher depression scores (rho= −0.51; p=0.006).These findings indicate that exercise capacity and muscle strength fall at exacerbation in chronic obstructive pulmonary disease patients who are treated at home and are free to maintain normal activity.
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Iliaz S, Iliaz R, Onur ST, Arici S, Akyuz U, Karaca C, Demir K, Besisik F, Kaymakoglu S, Akyuz F. Does gastroesophageal reflux increase chronic obstructive pulmonary disease exacerbations? Respir Med 2016; 115:20-5. [PMID: 27215499 DOI: 10.1016/j.rmed.2016.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/01/2016] [Accepted: 04/18/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND The relationship between chronic obstructive pulmonary disease (COPD) exacerbations and gastroesophageal reflux (GER) has been investigated less than asthma-GER. We aimed to evaluate the presence of GER in patients with COPD and its impact on exacerbations. METHODS We included 24 patients with stable mild-moderate stage COPD and 19 volunteers as the control group. We conducted a gastroesophageal reflux disease (GERD) symptom questionnaire, gastroscopy, manometry, and an ambulatory 24-h pH-impedance study. RESULTS According to the GERD questionnaire, only 5 (20.8%) patients with COPD had typical GER symptoms. According to the 24-h pH-impedance study, the mean DeMeester score (DMS) was 38.1 ± 34.6 in the COPD group and 13.3 ± 16.8 in the control group (p = 0.01). The acid reflux (DMS > 14.7) rate was higher in patients with COPD than in controls (73.9% vs 26.3%, p = 0.01). The symptom association probability positivity rate was 17.4% (n = 4) in the COPD group, which was similar to the controls (p = 0.11). The mean proximal extension rate of reflux (Z 17 cm) was 26.4 ± 12.9% in the COPD group. The proximal extent of reflux was positively correlated with the number of COPD exacerbations per year (p = 0.03, r = 0.448). In the motility results, only 2 (20%) patients in the control group had a minor motility disorder. Seventeen (70.8%) patients in the COPD group had a minor motility disorder, and 4 (16.7%) had major motility disorders (p < 0.001). CONCLUSION In our study, gastroesophageal reflux was frequent in patients with COPD, but only a quarter had typical reflux symptoms. The proximal extent of reflux may trigger frequent exacerbations of COPD.
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Affiliation(s)
- Sinem Iliaz
- Koç University Hospital, Department of Pulmonology, Istanbul, Turkey.
| | - Raim Iliaz
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Seda Tural Onur
- Yedikule Chest Diseases and Thoracic Surgery Education and Research Hospital, Department of Pulmonology, Istanbul, Turkey.
| | - Serpil Arici
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Umit Akyuz
- Fatih Sultan Mehmet Educational and Research Center, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Cetin Karaca
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Kadir Demir
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Fatih Besisik
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Sabahattin Kaymakoglu
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
| | - Filiz Akyuz
- Istanbul University, Istanbul Medical Faculty, Department of Gastroenterohepatology, Istanbul, Turkey.
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Ankjærgaard KL, Maibom SL, Wilcke JT. Long-term non-invasive ventilation reduces readmissions in COPD patients with two or more episodes of acute hypercapnic respiratory failure. Eur Clin Respir J 2016; 3:28303. [PMID: 27036658 PMCID: PMC4818354 DOI: 10.3402/ecrj.v3.28303] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 03/05/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) patients who have had an episode of acute hypercapnic respiratory failure (AHRF) have a large 1-year risk of death or readmission. Acute non-invasive ventilation (NIV) has been shown to be an effective treatment of AHRF; and long-term NIV (LTNIV) has been shown to be an effective treatment of chronic respiratory failure in stable hypercapnic COPD. We investigated the effects of LTNIV in a group of patients with severe, unstable COPD: frequent admissions and multiple previous episodes of AHRF treated with NIV. METHODS We conducted a retrospective analysis of 20 COPD patients treated with LTNIV after two or more episodes of AHRF during 1 year. RESULTS The mean number of AHRF episodes decreased from 2.44 in the year prior to LTNIV initiation to 0.44 in the year following (p<0.0001). The median number of admissions decreased from 5.19 to 1.88 (p=0.0092). Four patients (20%) died in 1 year. LTNIV tended to reduce arterial CO2. No changes were found in lung function. CONCLUSIONS LTNIV seems effective in reducing recurrent AHRF and readmissions in a highly select group of patients with severe, unstable COPD and frequent AHRF.
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Affiliation(s)
| | | | - Jon Torgny Wilcke
- Department of Pulmonary Medicine, Gentofte Hospital, Hellerup, Denmark
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Tomioka R, Kawayama T, Suetomo M, Kinoshita T, Tokunaga Y, Imaoka H, Matsunaga K, Okamoto M, Hoshino T. "Frequent exacerbator" is a phenotype of poor prognosis in Japanese patients with chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis 2016; 11:207-16. [PMID: 26893552 PMCID: PMC4745858 DOI: 10.2147/copd.s98205] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The prognosis of Japanese patients with COPD who suffer repeated exacerbations is unclear, although Westerners with such episodes have a poor prognosis. Materials and methods We conducted a 1-year prospective observational trial involving 90 Japanese patients with COPD: 58 nonexacerbators, 12 infrequent exacerbators, and 20 frequent exacerbators classified on the basis of exacerbation frequency (zero, one, and two or more exacerbations/year), respectively, during the previous year were observed prospectively for 1 year. The characteristics of frequent exacerbators, the frequency of exacerbation, and the period until the first event were then compared among the groups. Results A total of 78 patients completed the study. Frequent exacerbators had a significantly higher risk of frequent exacerbation in the following year than the case for nonexacerbators (odds ratio [95% confidence interval] 2.94 [1.21–7.17], P=0.0340), but not in comparison with infrequent exacerbators (1.51 [0.49–4.63], P>0.05). The mean annual frequency of exacerbations in the following year was significantly (P=0.0020) higher in the frequent exacerbators (1.4 exacerbations/year) than in the nonexacerbators (0.4), but not in the infrequent exacerbators (0.9, P>0.05). The mean period until the first exacerbation was significantly shorter in the frequent exacerbators than in the infrequent or nonexacerbators (P=0.0012). Independent risk factors for future frequent exacerbation included the presence of gastroesophageal reflux disease, more severe airflow obstruction, and use of inhaled corticosteroids. Conclusion Our present results indicate that Japanese COPD patients suffering frequent exacerbation have a poor prognosis. The characteristics of Japanese and Western COPD patients suffering frequent exacerbation are similar.
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Affiliation(s)
- Ryusuke Tomioka
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan; Respiratory Medicine, Chikugo City Hospital, Chikugo, Japan
| | - Tomotaka Kawayama
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Masashi Suetomo
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan; Respiratory Medicine, Chikugo City Hospital, Chikugo, Japan
| | - Takashi Kinoshita
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yoshihisa Tokunaga
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Haruki Imaoka
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Kazuko Matsunaga
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Masaki Okamoto
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Tomoaki Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
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Donaldson GC, Law M, Kowlessar B, Singh R, Brill SE, Allinson JP, Wedzicha JA. Impact of Prolonged Exacerbation Recovery in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2016; 192:943-50. [PMID: 26151174 DOI: 10.1164/rccm.201412-2269oc] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
RATIONALE Exacerbations are important and heterogeneous events in the natural history of chronic obstructive pulmonary disease (COPD). OBJECTIVES To examine the consequences of prolonged exacerbation recovery in patients with COPD. METHODS A cohort of 384 patients with COPD (FEV1 % predicted 45.8 [SD, 16.6] and a median exacerbation rate of 2.13 per year [interquartile range, 1.0-3.2]) were followed for 1,039 days (interquartile range, 660-1,814) between October 1995 and January 2013. Patients recorded daily worsening of respiratory symptoms and peak expiratory flow (PEF), and when stable underwent spirometry every 3 months, and completed the St. George's Respiratory Questionnaire annually. Exacerbations were diagnosed as 2 consecutive days with one major symptom plus another respiratory symptom. Exacerbation duration was defined as the time from onset to the day preceding 2 consecutive symptom-free days and recovery in PEF as return to preexacerbation levels. MEASUREMENTS AND MAIN RESULTS A total of 351 patients had one or more exacerbations. Patients with a longer symptom duration (mean, 14.5 d) had a worse St. George's Respiratory Questionnaire total score (0.2 units per 1 day; P = 0.040). A longer symptomatic duration was associated with a shorter interval between exacerbation recovery and onset of the next exacerbation (hazard ratio, 1.004; P = 0.013). For 257 (7.3%) exacerbations, PEF did not recover within 99 days. These exacerbations were associated with symptoms of a viral infection (cold and sore throat). Patients with these nonrecovered exacerbations showed a 10.8 ml/yr (P < 0.001) faster decline in FEV1. CONCLUSIONS Prolonged exacerbation symptomatic duration is associated with poorer health status and a greater risk of a new event. Exacerbations where lung function does not recover are associated with symptoms of viral infections and accelerated decline in FEV1.
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Affiliation(s)
- Gavin C Donaldson
- 1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Martin Law
- 2 MRC Biostatistics Unit, Cambridge Institute of Public Health, Forvie Site, Robinson Way, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | - Beverly Kowlessar
- 1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Richa Singh
- 1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Simon E Brill
- 1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - James P Allinson
- 1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Jadwiga A Wedzicha
- 1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
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Chen YJ, Makin C, Bollu VK, Navaie M, Celli BR. Exacerbations, health services utilization, and costs in commercially-insured COPD patients treated with nebulized long-acting β2-agonists. J Med Econ 2016; 19:11-20. [PMID: 26357881 DOI: 10.3111/13696998.2015.1079530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE This retrospective cohort study compared exacerbations, health services utilization, and costs among chronic obstructive pulmonary disease (COPD) patients who received nebulized arformoterol or nebulized formoterol therapy. METHODS Using PharMetrics Plus health plan claims, 417 nebulized long-acting β2-agonist (LABA) users meeting the study inclusion criteria were identified: had ≥2 fills of nebulized arformoterol or nebulized formoterol from January 1, 2009, to December 31, 2011, adhered to using their index drug ≥60% of the days during 1 year post-index, were ≥35 years old and continuously enrolled 180 days pre- and 1 year post-index, and did not use a nebulized LABA or have an asthma diagnosis during the pre-index period. Descriptive and multivariate analyses were performed. RESULTS A total of 274 nebulized arformoterol users and 143 nebulized formoterol users were identified with comparable demographic characteristics. However, significant differences were observed between the two groups in some clinical characteristics at index including comorbidities and use of antibiotics. At 1 year post-index, a lower proportion of nebulized arformoterol users had ≥1 exacerbation compared to nebulized formoterol users (70.4% vs 80.4%; p = 0.028). Among patients with ≥1 hospital admission, COPD-related costs per inpatient stay were significantly lower for nebulized arformoterol users than nebulized formoterol users (median = $9542 vs $14,025; p = 0.009). After controlling for confounders, nebulized arformoterol users had 19% marginally lower risk of exacerbations than nebulized formoterol users (hazard ratio = 0.81, 95% confidence interval = 0.64-1.03; p < 0.084) and 14.4% marginally lower COPD-related total costs at 1 year post-index (p = 0.062), primarily related to fewer hospital readmissions (7.6% vs 12.2%) and lower average costs per readmission stay (median = $7392 vs $18 081; p = 0.006). CONCLUSIONS This study suggests that the choice of nebulized LABA may influence COPD-related exacerbation occurrence and costs. Future studies with larger and more closely matched nebulized arformoterol and nebulized formoterol users are needed to confirm these findings.
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Affiliation(s)
- Yaozhu J Chen
- a Onyx Pharmaceuticals, Inc. , South San Francisco , CA , USA
| | - Charles Makin
- b HEOR & Strategic Market Access, Mapi Group , Boston , MA , USA
| | - Vamsi K Bollu
- c HEOR, Sunovion Pharmaceuticals, Inc. , Marlborough , MA , USA
| | - Maryam Navaie
- d Advance Health Solutions, LLC , San Diego , CA , USA
| | - Bartolome R Celli
- e Harvard Medical School, Boston, MA, USA, and Chronic Obstructive Pulmonary Disease Center, Brigham and Women's Hospital , Boston , MA , USA
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Abstract
COPD is a common cause of disability, morbidity and mortality worldwide and a major global health problem with enormous direct and indirect health care costs. Different reasons can be advanced to explain it, but among them the possibility that the recommended diagnostic and therapeutic approaches to COPD were less effective than they could be, should be also considered. The pharmacological baseline treatment of stable COPD has been widely based on the severity of airflow obstruction and recently, of chronic symptoms and on the annual number of previous exacerbations. These recommendations do not take into account the underlying prevalent disease that should be treated and the future risk. Our suggestion is that the therapy must be firstly tailored on the prevalent disease leading to COPD, independently from the degree of FEV1 reduction and chronic dyspnea and only after that, according to the severity of the disorder (and age of patient), to establish the level of the treatment in order to freeze, when possible, and not to follow the underlying pathological process, running after it. Moreover, given the relevance of exacerbations in the natural history of COPD, greater effort should be placed on recognition of their prevalent type in frequent exacerbators and to prevent them using more tailored and specific treatment.
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Affiliation(s)
- Claudio Tantucci
- Respiratory Medicine Unit, Department of Experimental and Clinical Sciences, University of Brescia, Brescia, Italy
| | - Laura Pini
- Respiratory Medicine Unit, Department of Experimental and Clinical Sciences, University of Brescia, Brescia, Italy
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Soyez F, Ninot G, Herkert A, Phin Huyn S, Prosper M, Chinet T, Housset B, Chouaid C, Roche N. [Validation of an evaluation questionnaire for COPD acute exacerbations (Exascore)]. Rev Mal Respir 2015; 33:17-24. [PMID: 26518257 DOI: 10.1016/j.rmr.2015.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 10/19/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND Early identification of acute exacerbations of COPD facilitates better care. This study was designed to validate a short questionnaire (Exascore) developed to help patients, relatives and carers to diagnose acute exacerbations. METHOD We first addressed content validity that allowed the elaboration of two questionnaires, one assessing the current status and the other stable status (transition). The second step tested their construction validity, reproducibility and concomitant validity among 126 COPD patients aged 64.4±9.9 years. They included 56 presenting with an exacerbation and 70 in stable state, of whom 57 completed the questionnaire a second time after 7 days. The diagnosis of exacerbation and assessment of severity (gold standard) were established by the treating respiratory physician and confirmed by two independent experts. RESULTS Factorial analyses established a "current status" questionnaire comprising 8 items and 2 dimensions. Cronbach's alpha coefficients were satisfactory, 0.867 for "respiratory impact", 0.886 for "psychosocial impact" and 0.886 for the total score. Concomitant validity and reproducibility were also adequate. The transition questionnaire did not obtain convincing psychometric results. CONCLUSIONS The "current status" Exascore questionnaire satisfies psychometric quality criteria while being usable in clinical practice. It helps in diagnosing acute exacerbations and assessing their intensity. Further studies will need to test the adequacy of proposed thresholds, the factorial structure of the score in healthcare professionals and patients' relatives, and its predictive power.
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Affiliation(s)
- F Soyez
- Unité de pathologie thoracique, hôpital privé d'Antony, 1, rue Velpeau, 92160 Antony, France.
| | - G Ninot
- EA4556, plateforme CEPS, université de Montpellier, 34000 Montpellier, France
| | - A Herkert
- Unité de pathologie thoracique, hôpital privé d'Antony, 1, rue Velpeau, 92160 Antony, France
| | - S Phin Huyn
- Pneumologie, CHI Robert-Ballanger, 93600 Aulnay-sous-Bois, France
| | | | - T Chinet
- Pneumologie, hôpital Ambroise-Paré, Assistance publique-Hôpitaux de Paris, 92100 Boulogne, France
| | - B Housset
- Pneumologie, CHI de Créteil, 94000 Créteil, France; Équipe 4, IMRB U955, université Paris-Est - Créteil, 94000 Créteil, France
| | - C Chouaid
- Pneumologie, CHI de Créteil, 94000 Créteil, France; Équipe 4, IMRB U955, université Paris-Est - Créteil, 94000 Créteil, France
| | - N Roche
- Pneumologie et soins intensifs respiratoires, groupe hospitalier Cochin - site Val-de-Grâce, Assistance publique-Hôpitaux de Paris, 75014 Boulogne, France; EA2511, université Paris Descartes, 75006 Paris, France
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Cazzola M, Rogliani P, Matera MG. Escalation and De-escalation of Therapy in COPD: Myths, Realities and Perspectives. Drugs 2015; 75:1575-85. [DOI: 10.1007/s40265-015-0450-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dalal AA, Patel J, D’Souza A, Farrelly E, Nagar S, Shah M. Impact of COPD Exacerbation Frequency on Costs for a Managed Care Population. J Manag Care Spec Pharm 2015; 21:575-83. [PMID: 26108382 PMCID: PMC10398016 DOI: 10.18553/jmcp.2015.21.7.575] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND There is scarce information on chronic obstructive pulmonary disease (COPD) outcomes and costs for patients with differing levels of COPD exacerbations. OBJECTIVE To examine COPD-related and all-cause health care resource use and costs in subsequent years for frequently and infrequently exacerbating COPD patients. METHODS Patients with a diagnosis of COPD (ICD-9-CM codes 491.xx, 492.xx, and 496.xx) were identified (1 hospitalization or 1 emergency department visit or at least 2 outpatient visits) using administrative claims data in 2007. Patients were classified in 2008 as frequent (at least 2 exacerbations/year), infrequent (1 exacerbation/year) and nonexacerbators. Outcomes were computed during a subsequent 2-year period (2009 and 2010). Average per person estimates and total sample-level estimates were calculated. A logistic regression model estimated the predictors of having 2 or more exacerbations per year during the follow-up period. RESULTS 61,750 COPD patients met the study criteria (mean age 67 years). Of these, 6% (n = 3,852) were frequent exacerbators; 14% were infrequent exacerbators (n = 8,416); and 80% were nonexacerbators (n = 49,482). At baseline, average all-cause health care costs per patient for frequent exacerbators were highest followed by infrequent and nonexacerbators ($12,837, $10,480, and $7,756, respectively). On average, 60% of frequent and 40% of infrequent exacerbators had at least 1 exacerbation per year in follow-up. Average annual per patient COPD-related costs for frequent exacerbators ($3,565 in 2009 and $3,528 in 2010) were more than 3 times (P less than 0.05) and infrequent exacerbators ($2,264 in 2009 and $2,265 in 2010) were more than 2 times (P less than 0.05) higher compared with nonexacerbators ($1,007 in 2009 and $1,027 in 2010). On a total sample-level, infrequent exacerbators were similar if not more burdensome compared with frequent exacerbators in the proportion accounted by these cohorts for total COPD-related costs (23% vs. 18%, respectively) and total number of COPD exacerbations per year (26% vs. 26%). Compared with nonexacerbators, infrequent exacerbators were 3 times (OR = 2.8, P less than 0.001) significantly more likely to have 2 or more exacerbations per year in follow-up, and frequent exacerbators were 7 times (OR = 6.76, P less than 0.001) significantly more likely to have 2 or more exacerbations per year in follow-up. CONCLUSIONS Infrequent exacerbators have an increased risk for future exacerbations compared with nonexacerbators and, on a total sample-level, incur greater costs compared with frequent exacerbators, demonstrating a significant economic burden.
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Affiliation(s)
- Anand A. Dalal
- Director, US Health Outcomes, GlaxoSmithKline, Research Triangle Park, North Carolina
| | - Jeetvan Patel
- Senior Manager, Health Economics and Outcomes Research, Amgen, Thousand Oaks, California
| | - Anna D’Souza
- Associate Director, Applied Data Analytics, Xcenda, Palm Harbor, Florida
| | - Eileen Farrelly
- Associate Director, Applied Data Analytics, Xcenda, Palm Harbor, Florida
| | - Saurabh Nagar
- Health Outcomes Scientist, RTI Health Solutions, Research Triangle Park, North Carolina
| | - Manan Shah
- Director, Health Economics and Outcomes Research, Bristol-Myers Squibb, New Brunswick, New Jersey
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Tiotropium and Salmeterol in COPD Patients at Risk of Exacerbations: A Post Hoc Analysis from POET-COPD(®). Adv Ther 2015; 32:537-47. [PMID: 26100349 PMCID: PMC4487350 DOI: 10.1007/s12325-015-0216-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Indexed: 11/22/2022]
Abstract
Introduction Among patients with chronic obstructive pulmonary disease (COPD), the frequency and severity of past exacerbations potentiates future events. The impact of current therapies on exacerbation frequency and severity in patients with different exacerbation risks is not well known. Methods A post hoc analysis of patients at low (≤1 exacerbation [oral steroids/antibiotics requirement] and no COPD-related hospitalization in the year preceding trial entry) or high (≥2 exacerbations [oral steroids/antibiotics requirement] or ≥1 COPD-related hospitalization[s] in the year preceding trial entry) exacerbation risk, from the Prevention of Exacerbations with Tiotropium in Chronic Obstructive Pulmonary Disease (POET-COPD®) database. Results Compared with salmeterol, tiotropium significantly increased time to first COPD exacerbation (hazard ratio 0.84; 95% confidence interval [CI] 0.76–0.92; p = 0.0002) and reduced the number of COPD exacerbations (rate ratio 0.90; 95% CI 0.81–0.99; p = 0.0383) in patients at high exacerbation risk. With treatment, the risk of remaining in the high-risk exacerbator subgroup was statistically lower with tiotropium versus salmeterol (risk ratio [RR] 0.89; 95% CI 0.80–1.00; p = 0.0478). For low-risk patients, time to first COPD exacerbation and number of COPD exacerbations were numerically lower with tiotropium versus salmeterol. With treatment, the risk of transitioning from a low to a high exacerbation risk was lower with tiotropium versus salmeterol (RR 0.87; 95% CI 0.71–1.07; p = 0.1968). Discussion This analysis confirms the higher efficacy of tiotropium versus salmeterol in prolonging time to first COPD exacerbation and reducing number of exacerbations in patients both at low and high exacerbation risk. Funding Boehringer Ingelheim and Pfizer. Clinical trial registration number: ClinicalTrials.gov NCT00563381. Electronic supplementary material The online version of this article (doi:10.1007/s12325-015-0216-2) contains supplementary material, which is available to authorized users.
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Papaioannou AI, Bartziokas K, Loukides S, Tsikrika S, Karakontaki F, Haniotou A, Papiris S, Stolz D, Kostikas K. Cardiovascular comorbidities in hospitalised COPD patients: a determinant of future risk? Eur Respir J 2015; 46:846-9. [PMID: 25882807 DOI: 10.1183/09031936.00237014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Accepted: 03/18/2015] [Indexed: 11/05/2022]
Affiliation(s)
| | | | - Stelios Loukides
- 2nd Respiratory Medicine Dept, University of Athens Medical School, Athens, Greece
| | - Stamatoula Tsikrika
- 3rd Respiratory Medicine Dept, Sismanogleion General Hospital, Athens, Greece
| | - Foteini Karakontaki
- 3rd Respiratory Medicine Dept, Sismanogleion General Hospital, Athens, Greece
| | | | - Spyros Papiris
- 2nd Respiratory Medicine Dept, University of Athens Medical School, Athens, Greece
| | - Daiana Stolz
- Respiratory Medicine Dept, University Hospital, Basel, Switzerland
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Abstract
PURPOSE OF REVIEW A frequent-exacerbation phenotype of chronic obstructive pulmonary disease (COPD) exists that is independent of disease severity. Establishment of methods to predict 'frequent exacerbators' is critical. The purpose of this review is to critically assess the recent literature regarding predicting COPD exacerbations, and to provide recommendations for future research. RECENT FINDINGS Although there are many studies in which inflammatory biomarkers have been used in an attempt to predict future exacerbations, it is likely that these biomarkers represent a consequence rather than the cause. Genetic predictors are involved in causal pathways. Thus, genetics should be investigated in order to understand the exacerbation mechanism and to develop new therapeutic approaches. Some single nucleotide-type genetic polymorphisms are associated with exacerbations, and the individuals with genotypes protective against infection are less susceptible to exacerbations. In contrast, we reported that loss of Siglec-14, a lectin likely involved in host defense, was associated with a reduced COPD exacerbation risk. SUMMARY We should take into consideration that a protein involved in host defense such as Siglec-14, that could also trigger exaggerated response, might also generate unwanted local and systemic inflammation, which could be detrimental to a host and could generate COPD with a frequent-exacerbation phenotype, its progression, and its comorbidities.
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van Ranst D, Stoop WA, Meijer JW, Otten HJ, van de Port IG. Reduction of exacerbation frequency in patients with COPD after participation in a comprehensive pulmonary rehabilitation program. Int J Chron Obstruct Pulmon Dis 2014; 9:1059-67. [PMID: 25336938 PMCID: PMC4199855 DOI: 10.2147/copd.s69574] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background Pulmonary rehabilitation (PR) is an important treatment option for chronic obstructive pulmonary disease (COPD) patients and might contribute to a reduction in exacerbation and exacerbation-related hospitalization rate. Methods In this prospective study, all COPD patients that completed a comprehensive pulmonary rehabilitation program (PRP) between June 2006 and December 2012 were included. Self-reported exacerbation and hospitalization frequency 1 year before PR was retrospectively recorded. During the year following PR, exacerbation and hospitalization frequency was recorded with questionnaires. Results For 343 patients, complete information on exacerbation and hospitalization rate was obtained. The mean number of exacerbations decreased significantly after participating in a PRP by 1.37 exacerbations/year (95% confidence interval 1.029 to 1.717) from 4.56±3.26 exacerbations in the year preceding PR to 3.18±2.53 in the year following PR (P<0.0005). The number of hospitalizations due to exacerbations decreased significantly by 0.68 hospitalizations/year (95% confidence interval 0.467 to 0.903) from 1.48±1.84 in the year preceding PR to 0.80±1.31 hospitalizations/year in the year following PR (P<0.0005). The proportion of patients with a frequent exacerbation type (more than two exacerbations/year) was reduced by 24%. Multivariate regression analysis to explore determinants that might predict reduction in exacerbation frequency or change in exacerbation pattern did not reveal clinically useful predictors, although patients with more exacerbations before PR had the highest potential for reduction. Conclusion In a large population of severely impaired COPD patients with high exacerbation rates, a significant reduction in exacerbation and hospitalization frequency was observed after participation in a comprehensive PRP.
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Affiliation(s)
- D van Ranst
- Revant, Pulmonary Rehabilitation Center "Schoondonck," Breda, the Netherlands
| | - W A Stoop
- Revant, Pulmonary Rehabilitation Center "Schoondonck," Breda, the Netherlands
| | - J W Meijer
- Revant, Pulmonary Rehabilitation Center "Schoondonck," Breda, the Netherlands
| | - H J Otten
- Revant, Pulmonary Rehabilitation Center "Schoondonck," Breda, the Netherlands
| | - I G van de Port
- Revant, Pulmonary Rehabilitation Center "Schoondonck," Breda, the Netherlands
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James GD, Donaldson GC, Wedzicha JA, Nazareth I. Trends in management and outcomes of COPD patients in primary care, 2000-2009: a retrospective cohort study. NPJ Prim Care Respir Med 2014; 24:14015. [PMID: 24990313 PMCID: PMC4373314 DOI: 10.1038/npjpcrm.2014.15] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 03/05/2014] [Accepted: 03/10/2014] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Since the introduction of the Quality and Outcomes framework, there has been some evidence of improvement in the management of chronic obstructive pulmonary disease (COPD) patients in the United Kingdom through increasing rates of smoking cessation advice and immunisations against influenza. However, it is unknown whether disease-specific management criteria, disease outcomes and diagnosis have improved. AIMS To describe changes in the management and outcomes of patients with COPD in UK general practice between 2000 and 2009. METHODS The study was done on a retrospective cohort using data from The Health Improvement Network UK primary care database. We calculated age at diagnosis of COPD and death, total number of short-term oral corticosteroid courses and consultations, and proportion of patients with very severe COPD and on triple inhaled therapy for each year between 2000 and 2009. RESULTS We identified 92,576 patients with COPD. The mean age at COPD diagnosis decreased from 68.1 years in 2000 to 66.7 years in 2009. The mean age at death increased from 78.2 years in 2000 to 78.8 years in 2009. The number of prescribed courses of oral corticosteroids increased from 0.6 in 2000 to 0.8 in 2009. The number of consultations increased from 9.4 in 2004 to 11.3 in 2009. The risk of having very severe COPD decreased from 9.4% in 2004 to 6.8% in 2009. The likelihood of patients with very severe COPD receiving triple therapy increased from 25% in 2004 to 59% in 2009. CONCLUSIONS The trends suggest that management and outcomes observed in patients with COPD may have improved since the year 2000.
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Affiliation(s)
- Gareth D James
- Department of Primary Care & Population Health, UCL Medical School, Royal Free Campus, Hampstead, London, UK
- Centre for Respiratory Medicine, University College London, Royal Free Campus, Hampstead, London, UK
| | - Gavin C Donaldson
- Centre for Respiratory Medicine, University College London, Royal Free Campus, Hampstead, London, UK
| | - Jadwiga A Wedzicha
- Centre for Respiratory Medicine, University College London, Royal Free Campus, Hampstead, London, UK
| | - Irwin Nazareth
- Department of Primary Care & Population Health, UCL Medical School, Royal Free Campus, Hampstead, London, UK
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Sharif R, Parekh TM, Pierson KS, Kuo YF, Sharma G. Predictors of early readmission among patients 40 to 64 years of age hospitalized for chronic obstructive pulmonary disease. Ann Am Thorac Soc 2014; 11:685-94. [PMID: 24784958 PMCID: PMC4225809 DOI: 10.1513/annalsats.201310-358oc] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 04/02/2014] [Indexed: 01/21/2023] Open
Abstract
RATIONALE Various causes can contribute to the high rates of readmission among patients hospitalized with chronic obstructive pulmonary disease (COPD). OBJECTIVES To determine the frequency and predictors of early readmission among patients aged 40-64 years, hospitalized with COPD. METHODS In a retrospective cohort study, using a large national commercial insurance database, we obtained the clinical information within 12 months of the index hospitalization and 30 days after discharge. MEASUREMENTS AND MAIN RESULTS Primary outcome was early readmission, defined as hospitalization within 30 days of discharge. We categorized predictor variables as patient, provider, and system factors, and compared these variables between patients readmitted and those not readmitted. Logistic regression was used for multivariable analysis. Of 8,263 patients who met the inclusion criteria, 741 (8.9%) had early readmission. Multivariable analysis showed patient factors (male, history of heart failure, lung cancer, osteoporosis, and depression), provider factors (no prior prescription of statin within 12 mo of the index hospitalization and no prescription of short-acting bronchodilator, oral steroid and antibiotic on discharge), and system factors (length of stay, <2 or >5 d and lack of follow-up visit after discharge) were associated with early readmission among patients hospitalized with COPD. The C-statistic of the model including patient characteristics was 0.677 (95% confidence interval, 0.656-0.697), which was improved to 0.717 (95% confidence interval, 0.702-0.732) after addition of provider- and system-based factors. CONCLUSIONS One of 11 patients hospitalized with COPD is readmitted within 30 days of discharge. Provider and system factors are important modifiable risk factors of early readmission.
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Affiliation(s)
- Roozbeh Sharif
- Department of Internal Medicine
- Graduate School of Biomedical Sciences
| | | | | | - Yong-Fang Kuo
- Department of Internal Medicine
- Sealy Center on Aging, and
| | - Gulshan Sharma
- Division of Pulmonary and Critical Care,
Department of Internal Medicine, University of Texas Medical Branch, Galveston,
Texas
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50
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Donaldson GC. Exacerbations in non-COPD patients: recognition? Thorax 2014; 69:689-90. [PMID: 24794419 DOI: 10.1136/thoraxjnl-2014-205355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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