Abstract:
BACKGROUND:The diagnosis and assessment of COPD rely mainly on the use of spirometry, which is an effort-dependent test and requires good patient cooperation. Impulse oscillometry (IOS) is a non-volitional method that requires less effort and cooperation and presents advantages for geriatric patients. However, the clinical application value of IOS in geriatric patients with COPD remains unclear. AIM:The aim of this study was to investigate the clinical application value of IOS in geriatric patients with COPD. SUBJECTS AND METHODS:A total of 234 subjects were retrospectively enrolled in this study, including 133 patients with COPD and 101 healthy volunteers. All the participants underwent IOS and spirometry examination. The data were collected and analyzed in the overall group, the geriatric group (aged ≥65 years), and the advanced elderly group (aged ≥80 years). RESULTS:1) In COPD patients, a significant increase in respiratory impedance (Z5), resonant frequency (Fres), and respiratory resistance (R5, R20, R5-R20) and a decrease in respiratory reactance (X5) were observed in the overall group, the geriatric group, and the advanced elderly group compared with the healthy control subjects. 2) The IOS parameters correlated well with spirometry in COPD. In particular, R5-R20 showed the best correlation with forced expiratory volume in 1 second (FEV1) in the different age groups. 3) Fres and R5-R20 had the best diagnostic efficiency for COPD. The area under the curve (AUC) values for Fres, expressed by the receiver operating characteristic (ROC) curve, were 0.905, 0.909, and 0.914, for the different age groups, respectively. 4) The optimal cutoff values for Fres to diagnose airflow obstruction from ROC curves was 17.715 in the COPD patients. Its sensitivity and specificity were 0.789 and 0.931, respectively, and the cutoff values were similar in geriatric and advanced elderly patients. CONCLUSION:IOS demonstrated good relevance compared with spirometry for geriatric patients with COPD. IOS may serve as an alternative method for spirometry in elderly subjects for the evaluation of the state of COPD.
journal_name
Int J Chron Obstruct Pulmon Disauthors
Liu Z,Lin L,Liu Xdoi
10.2147/COPD.S129974subject
Has Abstractpub_date
2017-03-15 00:00:00pages
897-905eissn
1176-9106issn
1178-2005pii
copd-12-897journal_volume
12pub_type
杂志文章abstract:BACKGROUND:We investigated whether a relationship between small airways dysfunction and bronchodilator responsiveness exists in patients with chronic obstructive pulmonary disease (COPD). METHODS:We studied 100 (20 female; mean age: 68±10 years) patients with COPD (forced expiratory volume in 1 second [FEV1]: 55% pred...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S82509
更新日期:2015-06-19 00:00:00
abstract::Chronic obstructive pulmonary disease (COPD) is a global health problem. Being a progressive disease characterized by inflammation and predominantly caused by tobacco smoking, it deteriorates pulmonary and skeletal muscle functioning, and reduces physical behavior, societal participation and quality of life. During th...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:
更新日期:2007-01-01 00:00:00
abstract::[This corrects the article on p. 2749 in vol. 11, PMID: 27853362.]. ...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 已发布勘误
doi:10.2147/COPD.S130231
更新日期:2017-01-10 00:00:00
abstract:BACKGROUND:COPD is a major cause of death and morbidity worldwide, and is characterized by persistent airflow obstruction. The evaluation of obstruction is critically dependent on sensitive methods for lung-function testing. A wide body of knowledge has been accumulated in recent years showing that these methods have b...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/COPD.S54328
更新日期:2016-07-11 00:00:00
abstract:Background:Static hyperinflation is known to be increased during moderate acute exacerbations of chronic obstructive pulmonary disease (COPD) (AECOPD), but few data exist in patients with severe exacerbations of COPD. The role of dynamic hyperinflation during exacerbations is unclear. Methods:In a prospective, observa...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S154878
更新日期:2018-04-18 00:00:00
abstract:STUDY OBJECTIVES:Patients with chronic obstructive pulmonary disease (COPD) have low exercise capacity and low content of high energetic phosphates in their skeletal muscles. The aim of the present study was to investigate whether creatine supplementation together with exercise training may increase physical performanc...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,随机对照试验
doi:10.2147/copd.2006.1.4.445
更新日期:2006-01-01 00:00:00
abstract:Aim:The aim of the current study was to assess the serum levels of trace minerals/heavy metals in COPD patients with and without pulmonary hypertension (PH) and to investigate their correlations to demographic, clinical, and biochemical variables. Materials and methods:This cross-sectional study was performed in Van Y...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S164431
更新日期:2018-05-31 00:00:00
abstract:Purpose:Autophagy plays essential roles in the development of COPD. We aim to identify and validate the potential autophagy-related genes of COPD through bioinformatics analysis and experiment validation. Methods:The mRNA expression profile dataset GSE38974 was obtained from GEO database. The potential differentially ...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S288428
更新日期:2021-01-12 00:00:00
abstract:Background:Metabolic syndrome (MetS) is a well-known comorbidity of chronic obstructive pulmonary disease (COPD). However, their interrelationship, particularly in early COPD, remains unclear. Therefore, we aimed to assess the prevalence and clinical characteristics of MetS in patients with early COPD, and to explore t...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S228497
更新日期:2019-12-10 00:00:00
abstract:BACKGROUND:Polypharmacy of respiratory medications is commonly observed in patients with chronic obstructive pulmonary disease (COPD). The aims of this study were to investigate determinants of polypharmacy and to study the consistency of actual respiratory drug use with current Global Initiative for Chronic Obstructiv...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S24443
更新日期:2011-01-01 00:00:00
abstract::Bronchiectasis is defined by permanent and abnormal widening of the bronchi. This process occurs in the context of chronic airway infection and inflammation. It is usually diagnosed using computed tomography scanning to visualize the larger bronchi. Bronchiectasis is also characterized by mild to moderate airflow obst...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/copd.s6133
更新日期:2009-01-01 00:00:00
abstract:Background:Adherence to treatment is key to achieve desired outcomes. In COPD, adherence is generally suboptimal and is impaired by treatment complexity. Objective:To estimate the clinical and economic impact of an improvement in treatment adherence due to an increased use of once-daily single-inhaler triple therapy (...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S253567
更新日期:2020-07-10 00:00:00
abstract:INTRODUCTION:Pulmonary emphysema causes several electrocardiogram changes, and one of the most common and well known is on the frontal P-wave axis. P-axis verticalization (P-axis > 60°) serves as a quasidiagnostic indicator of emphysema. The correlation of P-axis verticalization with the radiological severity of emphys...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S45127
更新日期:2013-01-01 00:00:00
abstract:Introduction:With increasing availability of different treatments for chronic obstructive pulmonary disease (COPD), we sought to understand patient preferences for COPD treatment in the UK, USA, and Germany using a discrete choice experiment (DCE). Methods:Qualitative research identified six attributes associated with...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S221980
更新日期:2020-03-18 00:00:00
abstract:BACKGROUND:Assessment of dyspnea in COPD patients relies in clinical practice on the modified Medical Research Council (mMRC) scale, whereas the Baseline Dyspnea Index (BDI) is mainly used in clinical trials. Little is known on the correspondence between the two methods. METHODS:Cross-sectional analysis was carried ou...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,多中心研究
doi:10.2147/COPD.S82408
更新日期:2015-08-18 00:00:00
abstract::Bronchodilators represent the hallmark of symptomatic treatment of Chronic Obstructive Pulmonary Disease (COPD). There are four categories of bronchodilators: anticholinergics, methylxanthines, short-acting beta2-agonists, and long-acting beta2-agonists such as formoterol. Significant research has been performed to in...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/copd.s1059
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:COPD is characterized by an accelerated and progressive decline in forced expiratory volume in 1 second (FEV1) and lung hyperinflation. Although lung hyperinflation is the hallmark of COPD, data on the longitudinal changes in lung hyperinflation and any association with the decline in FEV1 are lacking. The aim ...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S122909
更新日期:2017-02-03 00:00:00
abstract:Background and objective:The distance of 6-minute walk test (D6MWT) has been widely used in the assessment of functional status in patients with COPD, while very little attention has been paid to the role of steps of 6-minute walk test (S6MWT). The purpose of this study was to investigate the relationship between S6MWT...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S188994
更新日期:2018-12-28 00:00:00
abstract:BACKGROUND:It has been scientifically proven that pulmonary rehabilitation improves exercise tolerance and facilitates the carrying out of daily physical activities. To optimize the physical and physiological benefits, it is necessary to individualize the training intensity for each patient. The aim of this study is to...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S129889
更新日期:2017-05-16 00:00:00
abstract:BACKGROUND:Lung volume reduction (LVR) improves breathing mechanics by reducing hyperinflation. Lobar selection usually focuses on choosing the most destroyed emphysematous lobes as seen on an inspiratory CT scan. However, it has never been shown to what extent these densitometric CT parameters predict the least deflat...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S139304
更新日期:2017-08-30 00:00:00
abstract::Chronic obstructive pulmonary disease (COPD) is a preventable and treatable disease of the lung caused primarily by exposure to cigarette smoke. Clinically, it presents with progressive cough, sputum production, dyspnea, reduced exercise capacity, and diminished quality of life. Physiologically, it is characterized by...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/COPD.S4215
更新日期:2010-10-05 00:00:00
abstract:Objective:Chronic obstructive pulmonary disease (COPD) is associated with atherosclerosis. Previous studies including limited sample sizes have shown the prevalence of peripheral arterial occlusive disease (PAOD) among COPD patients. We sought to investigate the incidence of PAOD among COPD patients in Taiwan using a n...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S202029
更新日期:2019-07-04 00:00:00
abstract:Background:COPD may lead to cognitive impairment or even dementia. However, the current conclusions are inconsistent with little evidence from prospective, large-sample studies. This study was designed to explore the association of COPD with mild cognitive impairment (MCI) and dementia risk based on a cohort study. Pa...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S194277
更新日期:2019-02-13 00:00:00
abstract::Chronic obstructive pulmonary disease (COPD) is a progressive respiratory disease with an increasing prevalence worldwide. Its potential consequences, including reduced function and reduced social participation, are likely to be associated with decreased health-related quality of life (HRQoL). However, illness percept...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S52700
更新日期:2014-01-01 00:00:00
abstract:Rationale:Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are caused by a variety of different etiologic agents. Our aim was to phenotype COPD exacerbations using imaging (chest X-ray [CXR] and computed tomography [CT]) and to determine the possible role of the blood tests (C-reactive protein [CRP...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S152484
更新日期:2018-01-08 00:00:00
abstract:Background:Telerehabilitation (TR) aimed at patients with COPD has shown promising effects on symptoms, physical function, and quality of life, but little research has been conducted to understand the impact of implementation on frontline health professionals. Therefore, the aim of this study was to examine the barrier...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S167501
更新日期:2018-08-17 00:00:00
abstract:Background:Comorbidities including cardiovascular diseases are very common in chronic obstructive pulmonary disease (COPD) secondary to tobacco smoking and contribute to the overall severity of the disease. In non-smoking COPD, which accounts for about 25% of COPD cases worldwide, current knowledge on the frequency and...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S253417
更新日期:2020-07-01 00:00:00
abstract:OBJECTIVES:COPD is an abnormal inflammatory response characterized by decreased expression of TLR2 in patients, which is suggested to induce invasive pulmonary aspergillosis (IPA). MicroRNAs (miRNAs) have been shown to play important roles in the pathogenesis of human respiratory system disorders. Therefore, the aim of...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S120415
更新日期:2017-02-14 00:00:00
abstract::Pulmonary emphysema is characterized by the irreversible loss of pulmonary alveoli. Despite recent advances in the understanding this disease, its treatment remains palliative. In this review, we will successively review the data suggesting (1) that alveolar regeneration systems are functional in the mammalian lung an...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:
更新日期:2007-01-01 00:00:00
abstract:Background:In COPD disturbed sleep is related to exacerbation frequency, poor quality of life, and early mortality. We developed the Manchester Respiratory-related Sleep Symptoms scale (MaRSS) to assess sleep-time symptoms in COPD. Methods:Focus groups including COPD and age-matched controls were used to develop an it...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S171140
更新日期:2018-11-29 00:00:00