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He ZF, Lin SZ, Pan CX, Chen ZM, Cen LJ, Zhang XX, Huang Y, Chen CL, Zha SS, Li HM, Lin ZH, Shi MX, Zhong NS, Guan WJ. The roles of bacteria and viruses in COPD-Bronchiectasis association: A prospective cohort study. Respir Med 2024; 231:107692. [PMID: 38852923 DOI: 10.1016/j.rmed.2024.107692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/21/2024] [Accepted: 06/03/2024] [Indexed: 06/11/2024]
Abstract
BACKGROUND Exacerbations are implicated in bronchiectasis and COPD, which frequently co-exist [COPD-Bronchiectasis association (CBA)]. We aimed to determine the bacterial and viral spectrum at stable-state and exacerbation onset of CBA, and their association with exacerbations and clinical outcomes of CBA as compared with bronchiectasis. METHODS We prospectively collected spontaneous sputum from adults with CBA, bronchiectasis with (BO) and without airflow obstruction (BNO) for bacterial culture and viral detection at stable-state and exacerbations. RESULTS We enrolled 76 patients with CBA, 58 with BO, and 138 with BNO (711 stable and 207 exacerbation visits). Bacterial detection rate increased from BNO, CBA to BO at steady-state (P = 0.02), but not at AE onset (P = 0.91). No significant differences in viral detection rate were found among BNO, CBA and BO. Compared with steady-state, viral isolations occurred more frequently at exacerbation in BNO (15.8 % vs 32.1 %, P = 0.001) and CBA (19.5 % vs 30.6 %, P = 0.036) only. In CBA, isolation of viruses, human metapneumovirus and bacteria plus viruses was associated with exacerbation. Repeated detection of Pseudomonas aeruginosa (PA) correlated with higher modified Reiff score (P = 0.032) in CBA but not in BO (P = 0.178). Repeated detection of PA yielded a shorter time to the first exacerbation in CBA [median: 4.3 vs 11.1 months, P = 0.006] but not in BO (median: 8.4 vs 7.6 months, P = 0.47). CONCLUSIONS Isolation of any viruses, human metapneumovirus and bacterialplus viruses was associated with CBA exacerbations. Repeated detection of PA confers greater impact of future exacerbations on CBA than on BO.
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Affiliation(s)
- Zhen-Feng He
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Sheng-Zhu Lin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Cui-Xia Pan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhao-Ming Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lai-Jian Cen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiao-Xian Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yan Huang
- Department of Geriatrics, National Key Clinical Specialty, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, China
| | - Chun-Lan Chen
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shan-Shan Zha
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hui-Min Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhen-Hong Lin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ming-Xin Shi
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Nan-Shan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China; Guangzhou National Laboratory, Guangzhou, China
| | - Wei-Jie Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China; Guangzhou National Laboratory, Guangzhou, China.
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Zhang J, Yi Q, Zhou C, Luo Y, Wei H, Ge H, Liu H, Zhang J, Li X, Xie X, Pan P, Yi M, Cheng L, Zhou H, Liu L, Aili A, Liu Y, Peng L, Pu J, Zhou H. Characteristics, treatments, in-hospital and long-term outcomes among inpatients with acute exacerbation of chronic obstructive pulmonary disease in China: sex differences in a large cohort study. BMC Pulm Med 2024; 24:125. [PMID: 38468263 DOI: 10.1186/s12890-024-02948-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/04/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND Data related to the characteristics, treatments and clinical outcomes of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) patients in China are limited, and sex differences are still a neglected topic. METHODS The patients hospitalized for AECOPD were prospectively enrolled from ten medical centers in China between September 2017 and July 2021. Patients from some centers received follow-up for 3 years. Data regarding the characteristics, treatments and in-hospital and long-term clinical outcomes from male and female AECOPD patients included in the cohort were analyzed and compared. RESULTS In total, 14,007 patients with AECOPD were included in the study, and 11,020 (78.7%) were males. Compared with males, female patients were older (74.02 ± 10.79 vs. 71.86 ± 10.23 years, P < 0.001), and had more comorbidities (2.22 ± 1.64 vs. 1.73 ± 1.56, P < 0.001), a higher frequency of altered mental status (5.0% vs. 2.9%, P < 0.001), lower diastolic blood pressure (78.04 ± 12.96 vs. 79.04 ± 12.47 mmHg, P < 0.001). In addition, there were also significant sex differences in a range of laboratory and radiographic findings. Females were more likely to receive antibiotics, high levels of respiratory support and ICU admission than males. The in-hospital and 3-year mortality were not significantly different between males and females (1.4% vs. 1.5%, P = 0.711; 35.3% vs. 31.4%, P = 0.058), while female smokers with AECOPD had higher in-hospital mortality than male smokers (3.3% vs. 1.2%, P = 0.002) and male smokers exhibited a trend toward higher 3-year mortality compared to female smokers (40.7% vs. 33.1%, P = 0.146). CONCLUSIONS In AECOPD inpatients, females and males had similar in-hospital and long-term survival despite some sex differences in clinical characteristics and treatments, but female smokers had significantly worse in-hospital outcomes than male smokers. CLINICAL TRIAL REGISTRATION Retrospectively registered, registration number is ChiCTR2100044625, date of registration 21/03/2021. URL: http://www.chictr.org.cn/showproj.aspx?proj=121626 .
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Affiliation(s)
- Jiarui Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China
| | - Qun Yi
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China
- Sichuan Cancer Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Chen Zhou
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuanming Luo
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Hailong Wei
- Department of Respiratory and Critical Care Medicine, People's Hospital of Leshan, Leshan, Sichuan Province, China
| | - Huiqing Ge
- Department of Respiratory and Critical Care Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Huiguo Liu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Jianchu Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xianhua Li
- Department of Respiratory and Critical Care Medicine, the First People's Hospital of Neijiang City, Neijiang, Sichuan Province, China
| | - Xiufang Xie
- Department of Respiratory and Critical Care Medicine, the First People's Hospital of Neijiang City, Neijiang, Sichuan Province, China
| | - Pinhua Pan
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Mengqiu Yi
- Department of Emergency, First People's Hospital of Jiujiang, Jiujiang, Jiangxi Province, China
| | - Lina Cheng
- Department of Emergency, First People's Hospital of Jiujiang, Jiujiang, Jiangxi Province, China
| | - Hui Zhou
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan Province, China
| | - Liang Liu
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan Province, China
| | - Adila Aili
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China
| | - Yu Liu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China
| | - Lige Peng
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China
| | - Jiaqi Pu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China
| | - Haixia Zhou
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Guo-xue-xiang 37#, Wuhou District, 610041, Chengdu, Sichuan Province, China.
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Nyström H, Ekström M, Berkius J, Ström A, Walther S, Inghammar M. Prognosis after Intensive Care for COPD Exacerbation in Relation to Long-Term Oxygen Therapy: A Nationwide Cohort Study. COPD 2023; 20:64-70. [PMID: 36656666 DOI: 10.1080/15412555.2022.2106840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Decisions to admit or refuse admission to intensive care for acute exacerbations of COPD (AECOPD) can be difficult, due to an uncertainty about prognosis. Few studies have evaluated outcomes after intensive care for AECOPD in patients with chronic respiratory failure requiring long-term oxygen therapy (LTOT). In this nationwide observational cohort study, we investigated survival after first-time admission for AECOPD in all patients aged ≥40 years admitted to Swedish intensive care units between January 2008 and December 2015, comparing patients with and without LTOT. Among the 4,648 patients enrolled in the study, 450 were on LTOT prior to inclusion. Respiratory support data was available for 2,631 patients; 73% of these were treated with noninvasive ventilation (NIV) only, 17% were treated with immediate invasive ventilation, and 10% were intubated after failed attempt with NIV. Compared to patients without LTOT, patients with LTOT had higher 30-day mortality (38% vs. 25%; p < 0.001) and one-year mortality (70% vs. 43%; p < 0.001). Multivariable logistic and Cox regression models adjusted for age, sex and SAPS3 score confirmed higher mortality in LTOT, odds ratio for 30-day mortality was 1.8 ([95% confidence interval] 1.5-2.3) and hazard ratio for one-year mortality was 1.8 (1.6-2.0). In summary, although need for LTOT is a negative prognostic marker for survival after AECOPD requiring intensive care, a majority of patients with LTOT survived the AECOPD and 30% were alive after one year.
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Affiliation(s)
- Helena Nyström
- Department of Surgical and Perioperative Sciences, Anesthesiology and Intensive Care Medicine, Umeå University, Umeå, Sweden.,Department of Clinical Sciences Lund, Section for Infection Medicine, Skåne University Hospital, Lund University, Lund, Sweden
| | - Magnus Ekström
- Department of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund University, Lund, Sweden
| | - Johan Berkius
- Department of Anesthesia and Intensive Care, Västervik Hospital, Västervik, Sweden
| | - Axel Ström
- Clinical Studies Sweden, Forum South, Skåne University Hospital, Lund, Sweden
| | - Sten Walther
- Department of Cardiothoracic and Vascular Surgery, Linköping University Hospital and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Malin Inghammar
- Department of Clinical Sciences Lund, Section for Infection Medicine, Skåne University Hospital, Lund University, Lund, Sweden
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4
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Akbaş T, Güneş H. Characteristics and outcomes of patients with chronic obstructive pulmonary disease admitted to the intensive care unit due to acute hypercapnic respiratory failure. Acute Crit Care 2023; 38:49-56. [PMID: 36935534 PMCID: PMC10030250 DOI: 10.4266/acc.2022.01011] [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: 08/02/2022] [Accepted: 12/07/2022] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND The study aimed to describe the clinical course, outcomes, and prognostic factors of chronic obstructive pulmonary disease (COPD) patients with acute hypercapnic respiratory failure. METHODS This retrospective study involved patients with acute hypercapnic respiratory failure due to COPD of any cause admitted to the intensive care unit (ICU) for non-invasive or invasive mechanical ventilation (IMV) support between December 2015 and February 2020. RESULTS One hundred patients were evaluated. The main causes of acute hypercapnic respiratory failure were bronchitis, pneumonia, and heart failure. The patients' mean Acute Physiology and Chronic Health Evaluation (APACHE) II score was 23.0±7.2, and their IMV rate was 43%. ICU, in-hospital, and 90-day mortality rates were 21%, 29%, and 39%, respectively. Non-survivors had more pneumonia, shock within the first 24 hours of admission, IMV, vasopressor use, and renal replacement therapy, along with higher APACHE II scores, lower admission albumin levels and PaO2/ FiO2 ratios, and longer ICU and hospital stays than survivors. Logistic regression analysis identified APACHE II score (odds ratio [OR], 1.157; 95% confidence interval [CI], 1.017-1.317; P=0.026), admission PaO2/FiO2 ratio (OR, 0.989; 95% CI, 0.978-0.999; P=0.046), and vasopressor use (OR, 8.827; 95% CI, 1.650-47.215; P=0.011) as predictors of ICU mortality. APACHE II score (OR, 1.099; 95% CI, 1.021-1.182; P=0.011) and admission albumin level (OR, 0.169; 95% CI, 0.056-0.514; P=0.002) emerged as predictors of 90-day mortality. CONCLUSIONS APACHE II scores, the PaO2/FiO2 ratio, vasopressor use, and albumin levels are significant short-term mortality predictors in severely ill COPD patients with acute hypercapnic respiratory failure.
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Affiliation(s)
- Türkay Akbaş
- Division of Intensive Care, Department of Internal Medicine, School of Medicine, Düzce University, Düzce, Türkiye
| | - Harun Güneş
- Department of Emergency Medicine, School of Medicine, Balıkesir University, Balıkesir, Türkiye
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5
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McPeake J, Bateson M, Christie F, Robinson C, Cannon P, Mikkelsen M, Iwashyna TJ, Leyland AH, Shaw M, Quasim T. Hospital re-admission after critical care survival: a systematic review and meta-analysis. Anaesthesia 2022; 77:475-485. [PMID: 34967011 DOI: 10.1111/anae.15644] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2021] [Indexed: 12/22/2022]
Abstract
Survivors of critical illness frequently require increased healthcare resources after hospital discharge. We undertook a systematic review and meta-analysis to assess hospital re-admission rates following critical care admission and to explore potential re-admission risk factors. We searched the MEDLINE, Embase and CINAHL databases on 05 March 2020. Our search strategy incorporated controlled vocabulary and text words for hospital re-admission and critical illness, limited to the English language. Two reviewers independently applied eligibility criteria and assessed quality using the Newcastle Ottawa Score checklist and extracted data. The primary outcome was acute hospital re-admission in the year after critical care discharge. Of the 8851 studies screened, 87 met inclusion criteria and 41 were used within the meta-analysis. The analysis incorporated data from 3,897,597 patients and 741,664 re-admission episodes. Pooled estimates for hospital re-admission after critical illness were 16.9% (95%CI: 13.3-21.2%) at 30 days; 31.0% (95%CI: 24.3-38.6%) at 90 days; 29.6% (95%CI: 24.5-35.2%) at six months; and 53.3% (95%CI: 44.4-62.0%) at 12 months. Significant heterogeneity was observed across included studies. Three risk factors were associated with excess acute care rehospitalisation one year after discharge: the presence of comorbidities; events during initial hospitalisation (e.g. the presence of delirium and duration of mechanical ventilation); and subsequent infection after hospital discharge. Hospital re-admission is common in survivors of critical illness. Careful attention to the management of pre-existing comorbidities during transitions of care may help reduce healthcare utilisation after critical care discharge. Future research should determine if targeted interventions for at-risk critical care survivors can reduce the risk of subsequent rehospitalisation.
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Affiliation(s)
- J McPeake
- Intensive Care Unit, Glasgow Royal Infirmary and School of Medicine, Dentistry and Nursing, University of Glasgow, UK
| | - M Bateson
- University of the West of Scotland, Glasgow, UK
| | - F Christie
- NHS Greater Glasgow and Clyde, Glasgow, UK
| | - C Robinson
- Belfast Health and Social Care Trust, Belfast, UK
| | - P Cannon
- University of Glasgow Library, Glasgow, UK
| | - M Mikkelsen
- Center for Clinical Epidemiology and Biostatistics, Division of Pulmonary, Allergy, and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - T J Iwashyna
- Centre for Clinical Management Research, VA Ann Arbor Health System, Ann Arbor, MI, USA.,Department of Internal Medicine, Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, MI, USA
| | - A H Leyland
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | - M Shaw
- Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, UK.,School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - T Quasim
- School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK.,Intensive Care Unit, Glasgow Royal Infirmary, Glasgow, UK
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Finazzi S, Paci G, Antiga L, Brissy O, Carrara G, Crespi D, Csato G, Csomos A, Duek O, Facchinetti S, Fleming J, Garbero E, Gianni M, Gradisek P, Kaps R, Kyprianou T, Lazar I, Mikaszewska-Sokolewicz M, Mondini M, Nattino G, Olivieri C, Poole D, Previtali C, Radrizzani D, Rossi C, Skurzak S, Tavola M, Xirouchaki N, Bertolini G. PROSAFE: a European endeavor to improve quality of critical care medicine in seven countries. Minerva Anestesiol 2021; 86:1305-1320. [PMID: 33337119 DOI: 10.23736/s0375-9393.20.14112-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Long-lasting shared research databases are an important source of epidemiological information and can promote comparison between different healthcare services. Here we present PROSAFE, an advanced international research network in intensive care medicine, with the focus on assessing and improving the quality of care. The project involved 343 ICUs in seven countries. All patients admitted to the ICU were eligible for data collection. METHODS The PROSAFE network collected data using the same electronic case report form translated into the corresponding languages. A complex, multidimensional validation system was implemented to ensure maximum data quality. Individual and aggregate reports by country, region, and ICU type were prepared annually. A web-based data-sharing system allowed participants to autonomously perform different analyses on both own data and the entire database. RESULTS The final analysis was restricted to 262 general ICUs and 432,223 adult patients, mostly admitted to Italian units, where a research network had been active since 1991. Organization of critical care medicine in the seven countries was relatively similar, in terms of staffing, case mix and procedures, suggesting a common understanding of the role of critical care medicine. Conversely, ICU equipment differed, and patient outcomes showed wide variations among countries. CONCLUSIONS PROSAFE is a permanent, stable, open access, multilingual database for clinical benchmarking, ICU self-evaluation and research within and across countries, which offers a unique opportunity to improve the quality of critical care. Its entry into routine clinical practice on a voluntary basis is testimony to the success and viability of the endeavor.
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Affiliation(s)
- Stefano Finazzi
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Giulia Paci
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | | | - Obou Brissy
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Greta Carrara
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Daniele Crespi
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | | | - Akos Csomos
- Hungarian Army Medical Center, Budapest, Hungary
| | - Or Duek
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | | | - Joanne Fleming
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Elena Garbero
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy -
| | - Massimo Gianni
- Department of Anesthesiology and Intensive Care, Regional Valle d'Aosta Hospital, Aosta, Italy
| | | | - Rafael Kaps
- General Hospital Novo Mesto, Novo Mesto, Slovenia
| | | | - Isaac Lazar
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | | | - Matteo Mondini
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Giovanni Nattino
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy.,Division of Biostatistics, The Ohio State University, Columbus, OH, USA
| | - Carlo Olivieri
- Department of Anesthesiology and Intensive Care, ASL Vercelli, Vercelli, Italy
| | - Daniele Poole
- Department of Anesthesiology and Intensive Care, San Martino Hospital, Belluno, Italy
| | - Claudio Previtali
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Danilo Radrizzani
- Department of Anesthesiology and Intensive Care, Hospital of Legnano, Legnano, Milan, Italy
| | - Carlotta Rossi
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
| | - Stefano Skurzak
- Department of Anesthesiology and Intensive Care, San Giovanni Battista Hospital, Turin, Italy
| | - Mario Tavola
- Department of Anesthesiology and Intensive Care, ASST Lecco, Lecco, Italy
| | | | - Guido Bertolini
- GiViTI Coordinating Center, Institute for Pharmacological Research Mario Negri IRCCS, Clinical Research Center for Rare Diseases Aldo and Cele Daccò, Ranica, Bergamo, Italy
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Characteristics and Outcomes of Critically Ill Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease in Australia and New Zealand. Ann Am Thorac Soc 2021; 17:736-745. [PMID: 32135066 DOI: 10.1513/annalsats.201911-821oc] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Rationale: The characteristics and outcomes of patients presenting with an acute exacerbation of chronic obstructive pulmonary disease (AECOPD) requiring intensive care unit (ICU) admission are poorly understood and there are sparse epidemiological data.Objectives: The objectives were to describe epidemiology and outcomes of patients admitted to an ICU with COPD and to evaluate whether outcomes varied over time.Methods: We studied adult ICU admissions across Australia and New Zealand between 2005 and 2017 with a diagnosis of AECOPD and used an admission diagnosis of asthma as comparator for trends over time. We measured changes in characteristics and outcomes over time using logistic regression, adjusting for illness severity using the Australian New Zealand Risk of Death model.Results: We studied 31,991 admissions with AECOPD and 11,096 with asthma. Mean (standard deviation) age for AECOPD patients was 68.3 (11.2) years, with 35.4% mechanically ventilated. For patients with AECOPD, the percentage of deaths in an ICU was 8.7% and in a hospital was 15.4% of admissions, with the proportion of 69.2% discharged home and 5.6% discharged to a high-level care facility. During the study period, the proportion of ICU admissions with AECOPD per 10,000 admissions decreased at an annual rate of 2.0 (95% confidence interval [CI], 0.8-3.2; P = 0.009) but their admission rate per million population increased annually by 4.5 (95% CI, 3.7-5.3; P < 0.0001). There was a linear reduction in mortality for AECOPD but not for asthma admissions (odds ratio annual decline: AECOPD, 0.94 [0.93-0.95] and asthma, 1.01 [0.97-1.05]; P = 0.001) and an increase in AECOPD admissions discharged to home (odds ratio annual increase, AECOPD, 1.04 [1.03-1.05] and asthma, 1.01 [0.99-1.03]; P = 0.01). The reduction in mortality was sustained after adjusting for illness severity.Conclusions: Across Australia and New Zealand, the rate of ICU admissions due to AECOPD is increasing but mortality rates are decreasing, with a corresponding increase in the home discharge rates.
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Liang C, Mao X, Niu H, Huang K, Dong F, Chen Y, Huang K, Zhan Q, Huang Y, Zhang Y, Yang T, Wang C. Characteristics, Management and In-Hospital Clinical Outcomes Among Inpatients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease in China: Results from the Phase I Data of ACURE Study. Int J Chron Obstruct Pulmon Dis 2021; 16:451-465. [PMID: 33658775 PMCID: PMC7920502 DOI: 10.2147/copd.s281957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/07/2021] [Indexed: 11/30/2022] Open
Abstract
PURPOSE The study aimed to give a comprehensive overview of characteristics and evaluate in-hospital clinical outcomes among hospitalized acute exacerbation of chronic obstructive pulmonary disease (AECOPD) patients in China using data from the AECOPD inpatient registry (ACURE). PATIENTS AND METHODS The ACURE is an ongoing, national, multicenter, observational registry. Participants enrolled during phase I stage (1st September 2017 to 25th February 2020) of ACURE with confirmed AECOPD diagnoses were studied. Descriptive analyses were conducted to describe features and occurrences of in-hospital clinical outcomes of AECOPD inpatients in real-world China. RESULTS A total of 5334 AECOPD inpatients from 163 sites in 28 provinces or province-level municipalities were included. Among all participants, 78.8% were males and the median age was 69.0 [interquartile range (IQR): 63.0-76.0] years. The proportions of current and former smokers were 23.6% and 44.2%, respectively. The median age at COPD diagnosis was 64.0 (IQR: 57.0-71.0) years and 88.7% participants demonstrated at least one comorbidity. During stable period, only 56.9% subjects received pharmacological therapies and the influenza vaccination rate was 2.9%. During hospitalization, 99.5% subjects received pharmacological treatments and antibiotics were prescribed to 90.9% participants. The all-cause in-hospital mortality was 0.1% and no significant difference was found across hospital categories. CONCLUSION Clinical features of Chinese AECOPD inpatients were different from those of other populations. In real-world China, the clinical management during stable period was unsatisfied, whereas therapy during hospitalization was effective regarding in-hospital clinical outcomes regardless of hospital category.
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Affiliation(s)
- Chen Liang
- Chinese Alliance for Respiratory Diseases in Primary Care, Beijing, People’s Republic of China
| | - Xihua Mao
- Chinese Alliance for Respiratory Diseases in Primary Care, Beijing, People’s Republic of China
| | - Hongtao Niu
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, People’s Republic of China
| | - Ke Huang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, People’s Republic of China
| | - Fen Dong
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, People’s Republic of China
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Yahong Chen
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, People’s Republic of China
| | - Kewu Huang
- Department of Pulmonary and Critical Care Medicine, Beijing Chao-Yang Hospital, Beijing, People’s Republic of China
- Department of Respiratory Medicine, Capital Medical University, Beijing, People’s Republic of China
| | - Qingyuan Zhan
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, People’s Republic of China
| | - Yin Huang
- Chinese Alliance for Respiratory Diseases in Primary Care, Beijing, People’s Republic of China
| | - Yaowen Zhang
- Chinese Alliance for Respiratory Diseases in Primary Care, Beijing, People’s Republic of China
| | - Ting Yang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, People’s Republic of China
| | - Chen Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Science, Beijing, People’s Republic of China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
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Brown H, Dodic S, Goh SS, Green C, Wang WC, Kaul S, Tiruvoipati R. Factors associated with hospital mortality in critically ill patients with exacerbation of COPD. Int J Chron Obstruct Pulmon Dis 2018; 13:2361-2366. [PMID: 30122916 PMCID: PMC6080864 DOI: 10.2147/copd.s168983] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION COPD is a leading cause of morbidity and mortality worldwide. Patients with COPD often require admission to intensive care units (ICU) during an acute exacerbation. OBJECTIVE This study aimed to identify the factors independently associated with hospital mortality in patients requiring ICU admission for acute exacerbation of COPD. METHODS Patients admitted to the ICU of Frankston Hospital between January 2005 and June 2016 with an admission diagnosis of COPD were retrospectively identified from ICU databases. Patients' comorbidities, arterial blood gas results, and in-patient interventions were retrieved from their medical records. Outcomes analyzed included hospital and ICU length of stay (LOS) and mortality. RESULTS A total of 305 patients were included. Mean age was 67.4 years. A total of 77% of patients required non-invasive ventilation; and 38.7% required invasive mechanical ventilation (IMV) for a median of 127.2 hours (SD =179.5). Mean ICU LOS was 4.5 days (SD =5.96), and hospital LOS was 11.6 days (SD =13). In-hospital mortality was 18.7%. Multivariate analysis revealed that patient age (odds ratio [OR] =1.06; 95% CI: 1.031-1.096), ICU LOS (OR =1.26; 95% CI: 1.017-1.571), Acute Physiology and Chronic Health Evaluation-II score (OR =1.07; 95% CI: 1.012-1.123), and requirement for IMV (OR =4.09; 95% CI: 1.791-9.324) to be significantly associated with in-hospital mortality. CONCLUSION Patient age, requirement for IMV, and illness severity were associated with poor patient outcomes.
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Affiliation(s)
- Hamish Brown
- Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, VIC, Australia,
| | - Stefan Dodic
- Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, VIC, Australia,
| | - Sheen Sern Goh
- Department of Medicine, Frankston Hospital, Melbourne, VIC, Australia
| | - Cameron Green
- Department of Intensive Care Medicine, Frankston Hospital, Melbourne, VIC, Australia,
| | - Wei C Wang
- Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, VIC, Australia,
| | - Sameer Kaul
- Department of Respiratory Medicine, Frankston Hospital, Melbourne, VIC, Australia
| | - Ravindranath Tiruvoipati
- Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, VIC, Australia,
- Department of Intensive Care Medicine, Frankston Hospital, Melbourne, VIC, Australia,
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10
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Uh ST, Koo SM, Kim Y, Kim K, Park S, Jang AS, Kim D, Kim YH, Park CS. The activation of NLRP3-inflammsome by stimulation of diesel exhaust particles in lung tissues from emphysema model and RAW 264.7 cell line. Korean J Intern Med 2017; 32:865-874. [PMID: 28814068 PMCID: PMC5583452 DOI: 10.3904/kjim.2016.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 07/14/2016] [Accepted: 10/06/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND/AIMS Diesel exhaust particles (DEPs) lead to elevation of reactive oxygen species, which can activate the nucleotide-binding oligomerization domain-like receptor (NLR) family members containing the pyrin domain 3 (NLRP3)-inf lammasome. In this study, we elucidated whether NLRP3 -inf lammasome is activated by DEPs and whether antioxidants (N-acetylcysteine [NAC]) could inhibit such activation. METHODS RAW 264.7 cells and ex vivo lung tissues explants obtained from elastase-induced emphysema animal models were stimulated with cigarette smoking extract (CSE), DEPs, and lipopolysaccharide, and levels of interleukin-1β (IL-1β), caspase-1 and nucleotide-binding oligomerization domain-like receptor (NLR) family members containing the pyrin domain (NLRP3)-inflammasome were assessed by Western blotting and immunohistochemistry. RESULTS NAC and caspase-1 inhibitor suppressed CSE- and DEP-induced secretion of IL-1β in RAW 264.7 cells. The expression levels of the NLRP3-inflammasome and caspase-1 were upregulated in RAW 264.7 cells by stimulation with CSE and DEPs and were inhibited by NAC. CSE and DEPs increased the secretion of IL-1β in lung tissues from both the normal and elastase-induced emphysema groups. The secretion of IL-1β by CSE and DEPs was increased in the elastin-induced emphysema group more than that in the normal group (CSE: 309 ± 19 pg/mL vs. 151 ± 13 pg/mL, respectively, p < 0.05; DEP: 350 ± 24 pg/mL vs. 281 ± 15 pg/mL, respectively, p < 0.05). NAC inhibited CSE- and DEP-induced IL-1β secretion in both the normal and elastase-induced emphysema groups. NLRP3-inflammasome expression as determined by immunohistochemistry was increased by CSE and DEPs in both the normal and elastin-induced emphysema groups, and was suppressed by NAC. CONCLUSIONS The NLRP3-inf lammasome is activated by DEPs in ex vivo tissue explants from elastase-induced emphysema animal model, and this activation is inhibited by NAC.
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Affiliation(s)
- Soo-Taek Uh
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - So My Koo
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - Yangki Kim
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - Kiup Kim
- Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Korea
| | - Sungwoo Park
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
| | - An Soo Jang
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
| | - Dojin Kim
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
| | - Yong Hoon Kim
- Division of Respiratory Medicine, Soon Chun Hyang University Cheonan Hospital, Cheonan, Korea
| | - Choon-Sik Park
- Genome Research Center and Division of Allergy and Respiratory Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
- Correspondence to Choon-Sik Park, M.D. Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soon Chun Hyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon 14584, Korea Tel: +82-32-621-5105 Fax: +82-32-621-5023 E-mail:
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11
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Burgel PR. [Impact of acute COPD exacerbation and repetitive episodes on the disease evolution]. Rev Mal Respir 2017; 34:331-337. [PMID: 28476419 DOI: 10.1016/j.rmr.2017.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- P R Burgel
- Service de pneumologie, hôpital Cochin, AP-HP, 27, rue du Faubourg-St.-Jacques, 75014 Paris, France.
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12
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Srivastava K, Thakur D, Sharma S, Punekar YS. Systematic review of humanistic and economic burden of symptomatic chronic obstructive pulmonary disease. PHARMACOECONOMICS 2015; 33:467-488. [PMID: 25663178 DOI: 10.1007/s40273-015-0252-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND An understanding of the humanistic and economic burden of individuals with symptomatic chronic obstructive pulmonary disease (COPD) is required to inform payers and healthcare professionals about the disease burden. OBJECTIVES The aim of this systematic review was to identify and present humanistic [health-related quality of life (HRQoL)] and economic burdens of symptomatic COPD. METHODS A comprehensive search of online databases (reimbursement or claims databases/other databases), abstracts from conference proceedings, published literature, clinical trials, medical records, health ministries, financial reports, registries, and other sources was conducted. Adult patients of any race or gender with symptomatic COPD were included. Humanistic and economic burdens included studies evaluating HRQoL and cost and resource use, respectively, associated with symptomatic COPD. RESULTS Thirty-two studies reporting humanistic burden and 74 economic studies were identified. Symptomatic COPD led to impairment in the health state of patients, as assessed by HRQoL instruments. It was also associated with high economic burden across all countries. The overall, direct, and indirect costs per patient increased with an increase in symptoms, dyspnoea severity, and duration of disease. Across countries, the annual societal costs associated with symptomatic COPD were higher among patients with comorbidities. CONCLUSIONS Symptomatic COPD is associated with a substantial economic burden. The HRQoL of patients with symptomatic COPD is, in general, low and influenced by dyspnoea.
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Affiliation(s)
- Kunal Srivastava
- HERON Health PVT (Now Parexel), 3rd Floor, DLF Tower E, Rajiv Gandhi IT Park, Chandigarh, India
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13
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Uh ST, Koo SM, Jang AS, Park SW, Choi JS, Kim YH, Park CS. Proteomic differences with and without ozone-exposure in a smoking-induced emphysema lung model. Korean J Intern Med 2015; 30:62-72. [PMID: 25589837 PMCID: PMC4293566 DOI: 10.3904/kjim.2015.30.1.62] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/25/2014] [Accepted: 09/25/2014] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIMS Acute exacerbations in chronic obstructive pulmonary disease may be related to air pollution, of which ozone is an important constituent. In this study, we investigated the protein profiles associated with ozone-induced exacerbations in a smoking-induced emphysema model. METHODS Mice were divided into the following groups: group I, no smoking and no ozone (NS + NO); group II, no smoking and ozone (NS + O); group III, smoking and no ozone (S + NO); and group IV, smoking and ozone (S + O). Bronchoalveolar lavage, the mean linear intercept (MLI) on hematoxylin and eosin staining, nano-liquid chromatography-tandem mass spectrometry (LC-MS/MS), and Western blotting analyses were performed. RESULTS The MLIs of groups III (S + NO) and IV (S + O) (45 ± 2 and 44 ± 3 µm, respectively) were significantly higher than those of groups I (NS + NO) and II (NS + O) (26 ± 2 and 23 ± 2 µm, respectively; p < 0.05). Fourteen spots that showed significantly different intensities on image analyses of two-dimensional (2D) protein electrophoresis in group I (NS + NO) were identified by LC-MS/MS. The levels of six proteins were higher in group IV (S + O). The levels of vimentin, lactate dehydrogenase A, and triose phosphate isomerase were decreased by both smoking and ozone treatment in Western blotting and proteomic analyses. In contrast, TBC1 domain family 5 (TBC1D5) and lamin A were increased by both smoking and ozone treatment. CONCLUSIONS TBC1D5 could be a biomarker of ozone-induced lung injury in emphysema.
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Affiliation(s)
- Soo-Taek Uh
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - So-My Koo
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - An Soo Jang
- Genome Research Center for Allergy and Respiratory Disease, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sung Woo Park
- Genome Research Center for Allergy and Respiratory Disease, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jae Sung Choi
- Division of Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Yong-Hoon Kim
- Division of Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Choon Sik Park
- Genome Research Center for Allergy and Respiratory Disease, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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14
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Ongel EA, Karakurt Z, Salturk C, Takir HB, Burunsuzoglu B, Kargin F, Ekinci GH, Mocin O, Gungor G, Adiguzel N, Yilmaz A. How do COPD comorbidities affect ICU outcomes? Int J Chron Obstruct Pulmon Dis 2014; 9:1187-96. [PMID: 25378919 PMCID: PMC4207568 DOI: 10.2147/copd.s70257] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background and aim Chronic obstructive pulmonary disease (COPD) patients with acute respiratory failure (ARF) frequently require admission to the intensive care unit (ICU) for application of mechanical ventilation (MV). We aimed to determine whether comorbidities and clinical variables present at ICU admission are predictive of ICU mortality. Methods A retrospective, observational cohort study was performed in a tertiary teaching hospital’s respiratory ICU using data collected between January 2008 and December 2012. Previously diagnosed COPD patients who were admitted to the ICU with ARF were included. Patients’ demographics, comorbidities, body mass index (BMI), ICU admission data, application of noninvasive and invasive MV (NIV and IMV, respectively), cause of ARF, length of ICU and hospital stay, and mortality were recorded from their files. Patients were grouped according to mortality (survival versus non-survival), and all the variables were compared between the two groups. Results During the study period, a total of 1,013 COPD patients (749 male) with a mean age (standard deviation) of 70±10 years met the inclusion criteria. Comorbidities of the non-survival group (female/male, 40/131) were significantly higher compared with the survival group (female/male, 224/618): arrhythmia (24% vs 11%), hypertension (42% vs 34%), coronary artery disease (28% vs 11%), and depression (7% vs 3%) (P<0.001, P<0.035, P<0.001, and P<0.007, respectively). Logistic regression revealed the following mortality risk factors: need of IMV, BMI <20 kg/m2, pneumonia, coronary artery disease, arrhythmia, hypertension, chronic hypoxia, and higher acute physiology and chronic health evaluation II (APACHE II) scores. The respective odds ratios, confidence intervals, and P-values for each of these were as follows: 27.7, 15.7–49.0, P<0.001; 6.6, 3.5–412.7, P<0.001; 5.1, 2.9–8.8, P<0.001; 2.9, 1.5–5.6, P<0.001; 2.7, 1.4–5.2, P<0.003; 2.6, 1.5–4.4, P<0.001; 2.2, 1.2–3.9, P<0.008; and 1.1, 1.03–1.11, P<0.001. Conclusion Patients with severe COPD and cardiac comorbidities and cachexia should be closely monitored in ICU due to their high risk of ICU mortality.
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Affiliation(s)
- Esra Akkutuk Ongel
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Zuhal Karakurt
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Cuneyt Salturk
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Huriye Berk Takir
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Bunyamin Burunsuzoglu
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Feyza Kargin
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Gulbanu H Ekinci
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Ozlem Mocin
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Gokay Gungor
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Nalan Adiguzel
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
| | - Adnan Yilmaz
- Respiratory Intensive Care Unit Clinic, Sureyyapasa Chest Diseases and Thoracic Surgery Teaching and Research Hospital, Istanbul, Turkey
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Predictors of mortality in hospitalized adults with acute exacerbation of chronic obstructive pulmonary disease. Ann Am Thorac Soc 2013; 10:81-9. [PMID: 23607835 DOI: 10.1513/annalsats.201208-043oc] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
RATIONALE There is a need to identify clinically meaningful predictors of mortality following hospitalized COPD exacerbation. OBJECTIVES The aim of this study was to systematically review the literature to identify clinically important factors that predict mortality after hospitalization for acute exacerbation of chronic obstructive pulmonary disease (COPD). METHODS Eligible studies considered adults admitted to hospital with COPD exacerbation. Two authors independently abstracted data. Odds ratios were then calculated by comparing the prevalence of each predictor in survivors versus nonsurvivors. For continuous variables, mean differences were pooled by the inverse of their variance, using a random effects model. MEASUREMENTS AND MAIN RESULTS There were 37 studies included (189,772 study subjects) with risk of death ranging from 3.6% for studies considering short-term mortality, 31.0% for long-term mortality (up to 2 yr after hospitalization), and 29.0% for studies that considered solely intensive care unit (ICU)-admitted study subjects. Twelve prognostic factors (age, male sex, low body mass index, cardiac failure, chronic renal failure, confusion, long-term oxygen therapy, lower limb edema, Global Initiative for Chronic Lung Disease criteria stage 4, cor pulmonale, acidemia, and elevated plasma troponin level) were significantly associated with increased short-term mortality. Nine prognostic factors (age, low body mass index, cardiac failure, diabetes mellitus, ischemic heart disease, malignancy, FEV1, long-term oxygen therapy, and PaO2 on admission) were significantly associated with long-term mortality. Three factors (age, low Glasgow Coma Scale score, and pH) were significantly associated with increased risk of mortality in ICU-admitted study subjects. CONCLUSION Different factors correlate with mortality from COPD exacerbation in the short term, long term, and after ICU admission. These parameters may be useful to develop tools for prediction of outcome in clinical practice.
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Berkius J, Engerström L, Orwelius L, Nordlund P, Sjöberg F, Fredrikson M, Walther SM. A prospective longitudinal multicentre study of health related quality of life in ICU survivors with COPD. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2013; 17:R211. [PMID: 24063309 PMCID: PMC4056744 DOI: 10.1186/cc13019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 09/24/2013] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Mortality amongst COPD patients treated on the ICU is high. Health-related quality of life (HRQL) after intensive care is a relevant concern for COPD patients, their families and providers of health care. Still, there are few HRQL studies after intensive care of this patient group. Our hypothesis was that HRQL of COPD patients treated on the ICU declines rapidly with time. METHODS Fifty-one COPD patients (COPD-ICU group) with an ICU stay longer than 24 hours received a questionnaire at 6, 12 and 24 months after discharge from ICU. HRQL was measured using two generic instruments: the EuroQoL instrument (EQ-5D and EQ-VAS) and the Short Form 36 Health Survey (SF-36). The results were compared to HRQL of two reference groups from the general population; an age- and sex-adjusted reference population (Non-COPD reference) and a reference group with COPD (COPD reference). RESULTS HRQL of the COPD-ICU group at 6 months after discharge from ICU was lower compared to the COPD reference group: Median EQ-5D was 0.66 vs. 0.73, P = 0.08 and median EQ-VAS was 50 vs.55, P < 0.05. There were no significant differences in the SF-36 dimensions between the COPD-ICU and COPD-reference groups, although the difference in physical functioning (PF) approached statistical significance (P = 0.059). Patients in the COPD-ICU group who were lost to follow-up after 6 months had low HRQL scores at 6 months. Scores for patients who died were generally lower compared to patients who failed to respond to the questionnaire. The PF and social functioning (SF) scores in those who died were significantly lower compared to patients with a complete follow up. HRQL of patients in the COPD-ICU group that survived a complete 24 months follow up was low but stable with no statistically significant decline from 6 to 24 months after ICU discharge. Their HRQL at 24 months was not significantly different from HRQL in the COPD reference group. CONCLUSIONS HRQL in COPD survivors after intensive care was low but did not decline from 6 to 24 months after discharge from ICU. Furthermore, HRQL at 24 months was similar to patients with COPD who had not received ICU treatment.
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Stefan MS, Rothberg MB, Shieh MS, Pekow PS, Lindenauer PK. Association between antibiotic treatment and outcomes in patients hospitalized with acute exacerbation of COPD treated with systemic steroids. Chest 2013; 143:82-90. [PMID: 22797691 PMCID: PMC3537542 DOI: 10.1378/chest.12-0649] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 06/01/2012] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Antibiotics are widely used in acute exacerbations of COPD (AE-COPD), but their additional benefit to a therapeutic regimen that already includes steroids is uncertain. We evaluated the association between antibiotic therapy and outcomes among a large cohort of patients treated with steroids who were hospitalized with AE-COPD and compared the effectiveness of three commonly used antibiotic regimens. METHODS We conducted a retrospective cohort study of patients aged 40 years hospitalized for AE-COPD from January 1, 2006, through December 1, 2007, at 410 acute care hospitals throughout the United States. RESULTS Of the 53,900 patients who met the inclusion criteria, 85% were treated with antibiotics in the first 2 hospital days; 50% were treated with a quinolone, 22% with macrolides plus cephalosporin, and 9% with macrolide monotherapy. Compared with patients not treated with antibiotics, those who received antibiotics had lower mortality (1% vs 1.8%, P < .0001). In multivariable analysis, receipt of antibiotics was associated with a 40% reduction in the risk of in-hospital mortality (RR, 0.60; 95% CI, 0.50-0.73) and a 13% reduction in the risk of 30-day readmission for COPD (RR, 0.87; 95% CI, 0.79-0.96). The risk of late ventilation and readmission for Clostridium difficile colitis was not significantly different between the two groups. We found little difference in the outcomes associated with three common antibiotic treatment choices. CONCLUSIONS Our results suggest that the addition of antibiotics to a regimen that includes steroids may have a beneficial effect on short-term outcomes for patients hospitalized with AE-COPD.
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Affiliation(s)
- Mihaela S Stefan
- Division of General Medicine, Baystate Medical Center, Springfield; Department of Medicine, and Center for Quality of Care Research, Baystate Medical Center, Springfield; Department of Medicine, Tufts University School of Medicine, Boston; Program in Clinical and Translational Research, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston.
| | - Michael B Rothberg
- Division of General Medicine, Baystate Medical Center, Springfield; Department of Medicine, and Center for Quality of Care Research, Baystate Medical Center, Springfield; Department of Medicine, Tufts University School of Medicine, Boston; Sackler School of Graduate Biomedical Sciences, Tufts University, Boston
| | - Meng-Shiou Shieh
- Department of Medicine, and Center for Quality of Care Research, Baystate Medical Center, Springfield
| | - Penelope S Pekow
- Department of Medicine, and Center for Quality of Care Research, Baystate Medical Center, Springfield; School of Public Health and Health Sciences, University of Massachusetts-Amherst, MA
| | - Peter K Lindenauer
- Division of General Medicine, Baystate Medical Center, Springfield; Department of Medicine, and Center for Quality of Care Research, Baystate Medical Center, Springfield; Department of Medicine, Tufts University School of Medicine, Boston; Sackler School of Graduate Biomedical Sciences, Tufts University, Boston; Tufts Clinical and Translational Science Institute, Boston
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18
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Affiliation(s)
- Richard P Wenzel
- Department of Internal Medicine, Virginia Commonwealth University Medical Center, Richmond, USA.
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19
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Messer B, Griffiths J, Baudouin SV. The prognostic variables predictive of mortality in patients with an exacerbation of COPD admitted to the ICU: an integrative review. QJM 2012; 105:115-26. [PMID: 22071965 DOI: 10.1093/qjmed/hcr210] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
INTRODUCTION Chronic Obstructive Pulmonary Disease (COPD) frequently presents with an acute exacerbation (AECOPD). Debate exists as to whether these patients should be admitted to intensive care units (ICUs). An integrative review was performed to determine whether clinical variables available at the time of ICU admission are predictive of the intermediate-term mortality of patients with an AECOPD. METHODS An integrative review was structured to incorporate a five-stage review framework to facilitate data extraction, analysis and presentation. The quality of the studies contributing to the integrative review was assessed with a novel scoring system developed from previously published data and adapted to this setting. RESULTS The integrative review search strategy identified 28 studies assessing prognostic variables in this setting. Prognostic variables associated with intermediate-term mortality were low Glasgow Coma Scale (GCS) on admission to ICU, cardio-respiratory arrest prior to ICU admission, cardiac dysrhythmia prior to ICU admission, length of hospital stay prior to ICU admission and higher values of acute physiology scoring systems. Premorbid variables such as age, functional capacity, pulmonary function tests, prior hospital or ICU admissions, body mass index and long-term oxygen therapy were not found to be associated with intermediate-term mortality nor was the diagnosis attributed to the cause of the AECOPD. DISCUSSION Variables associated with intermediate-term mortality after AECOPD requiring ICU admission are those variables, which reflect underlying severity of acute illness. Premorbid and diagnostic data have not been shown to be predictive of outcome. A scoring system is proposed to assess studies of prognosis in AECOPD.
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Affiliation(s)
- B Messer
- Department of Anaesthetics, Royal Victoria Infirmary, Newcastle-upon-Tyne, UK.
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20
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21
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Uh ST, Lee JY, Koo SM, Kim YK, Kim KU, Park JS, Park SW, Jang AS, Kim DJ, Choi JS, Na JO, Suh KH, Kim YH, Park CS. The Survival Rate of Korean Patients with COPD with or without Acute Exacerbations. Tuberc Respir Dis (Seoul) 2011. [DOI: 10.4046/trd.2011.70.6.474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Soo-Taek Uh
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Ji Yeon Lee
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - So Mi Koo
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Yang Ki Kim
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Ki Up Kim
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Jong Sook Park
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
- Genome Research Center for Allergy and Respiratory Diseases, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sung Woo Park
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
- Genome Research Center for Allergy and Respiratory Diseases, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - An Soo Jang
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
- Genome Research Center for Allergy and Respiratory Diseases, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Do Jin Kim
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jae Sung Choi
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Joo Ok Na
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Ki Hyun Suh
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Yong Hoon Kim
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Choon-Sik Park
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
- Genome Research Center for Allergy and Respiratory Diseases, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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22
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Berkius J, Sundh J, Nilholm L, Fredrikson M, Walther SM. Long-term survival according to ventilation mode in acute respiratory failure secondary to chronic obstructive pulmonary disease: a multicenter, inception cohort study. J Crit Care 2010; 25:539.e13-8. [PMID: 20381291 DOI: 10.1016/j.jcrc.2010.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2009] [Revised: 12/30/2009] [Accepted: 02/02/2010] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of the study was to investigate 5-year survival stratified by mechanical ventilation modality in chronic obstructive pulmonary disease (COPD) patients treated in the ICU. MATERIALS AND METHODS Prospective, observational study of COPD patients with acute respiratory failure admitted to 9 multidisciplinary ICUs in Sweden. Characteristics on admission, including illness severity scores and the first blood gas, and survival were analyzed stratified by ventilation modality (noninvasive [NIV] vs invasive mechanical ventilation). RESULTS Ninety-three patients, mean age of 70.6 (SD, 9.6) years, were included. Sixteen patients were intubated immediately, whereas 77 were started on NIV. Patients who were started on NIV had a lower median body mass index (BMI) (21.9 vs 27.0; P < .01) and were younger compared to those who were intubated immediately (median age, 70 vs 74.5 years; P < .05). There were no differences in the initial blood gas results between the groups. Long-term survival was greater in patients with NIV (P < .05, log rank). The effect of NIV on survival remained after including age, Acute Physiology and Chronic Health Evaluation II score, and BMI in a multivariate Cox regression model (NIV hazard ratio, 0.44; 95% confidence interval, 0.21-0.92). Fifteen patients with failed NIV were intubated and mechanically ventilated. Long-term survival in patients with failed NIV was not significantly different from patients who were intubated immediately. CONCLUSION The short-term survival benefit of NIV previously found in randomized controlled trials still applies after 5 years of observation.
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Affiliation(s)
- Johan Berkius
- Department of Anesthesia and Intensive Care, Västervik Hospital, Västervik, Sweden.
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23
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Bülow HH, Thorsager B. Non-invasive ventilation in do-not-intubate patients: five-year follow-up on a two-year prospective, consecutive cohort study. Acta Anaesthesiol Scand 2009; 53:1153-7. [PMID: 19650806 DOI: 10.1111/j.1399-6576.2009.02034.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND End-of-life decisions are common in intensive care units (ICUs), and increasingly, non-invasive ventilation (NIV) is used as a ceiling of ventilatory care. However, little is known about the outcome following that decision. METHODS An observational, single-center, retrospective, follow-up study with no interventions, on ICU patients treated with NIV and a do-not-intubate (DNI) order. The patients were followed until a 5-year survival rate could be calculated. RESULTS One hundred and fifty-seven patients were treated with NIV during 2002 and 2003, and among 38 a DNI order was in effect. Of the 38 DNI patients, 11 died in the ICU, 16 died on the ward and 11 survived the hospital stay. Five of these 11 survivors died within 6 months, two died after 2.7 and 3.3 years, respectively, but four were still alive after 5 years. The long-term (>6 months) survivors have, surprisingly only been admitted to the hospital 0-2 times a year - and seldom with the need for ICU treatment. CONCLUSIONS According to this study, and previous ones, it seems worthwhile treating DNI patients with NIV. Twenty-five to 35% leave the hospital alive, every 6th patient lives for at least 1 year, and this paper shows that 10% may survive for 5 years or more. However, only chronic obstructive pulmonary disease and chronic heart failure patients (both with a concomitant low APACHE score) seem to have a reasonable outcome, and patients should be informed about this. So far, no study has investigated the quality of life of these survivors.
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Affiliation(s)
- H-H Bülow
- Department of Anaesthesiology and Intensive Care, Holbaek Hospital, University of Copenhagen, DK, Denmark.
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Chabot F, Gomez E, Guillaumot A, Kheir A, Chaouat A. [Acute exacerbations of chronic obstructive pulmonary disease]. Presse Med 2009; 38:485-95. [PMID: 19185446 DOI: 10.1016/j.lpm.2008.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Accepted: 12/21/2008] [Indexed: 11/19/2022] Open
Abstract
Acute exacerbation of chronic obstructive pulmonary disease (COPD) is defined by modification of the usual COPD symptoms, dyspnea, coughing and sputum, beyond daily variations, with a sudden onset, and requiring modification of the usual treatment. Exacerbations stud the course of COPD. Their frequency is variable, averaging 1-2 per year. Their frequency generally increases with COPD severity. Exacerbations impair patients' quality of life and aggravate disease prognosis by accelerating the decline in FEV1, the primary indicator of respiratory function. The most frequent causes of exacerbations are viral and bacterial respiratory infections and pollution. No cause is identified for nearly one third of all exacerbations. Most exacerbations can be treated at home, if a careful search for signs of clinical severity is negative. Treatment combines inhaled bronchodilator agents (beta-2 agonists, combined if necessary with anticholinergics) and oral corticosteroid therapy (prednisone: 0.5 mg/kg/d for 1 week) when the COPD is severe or signs of severity accompany the exacerbation. Antibiotic therapy is justified when the sputum appears purulent. Severe exacerbation may require oxygen therapy in cases of severe hypoxemia (PaO(2)<60 mm Hg) or mechanically assisted ventilation, essentially by noninvasive ventilation in cases of respiratory acidosis (pH<7.35). Noninvasive ventilation improves dyspnea and respiratory acidosis, diminishes respiratory frequency, intubation, duration of hospitalization, nosocomial infections, and mortality. Pulmonary follow-up is necessary after an exacerbation, especially to prevent the recurrence of exacerbations by measures that have been demonstrated to be effective, including help in smoking cessation, adaptation of COPD treatment, vaccination against influenza and pneumonia (pneumococci), and respiratory rehabilitation. Early diagnosis and rapid treatment of exacerbations can limit their impact, improve quality of life, and reduce the risk of hospitalization.
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Affiliation(s)
- François Chabot
- Service des Maladies Respiratoires et Réanimation Respiratoire, Hôpitaux de Brabois, CHU de Nancy, Vandoeuvre-les-Nancy, France.
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