Abstract:
BACKGROUND:The need for additional research on symptomatic smokers with normal spirometry has been recently emphasized. Albeit not meeting criteria for Chronic obstructive pulmonary disease (COPD) diagnosis, symptomatic smokers may experience activity limitation, evidence of airway disease, and exacerbations. We, therefore, evaluated whether symptomatic smokers with borderline spirometry (post-bronchodilator FEV1/FVC ratio between 5th to 20th percentile of predicted values) have pulmonary function abnormalities at rest and ventilatory constraints during exercise. METHODS:48 subjects (aged 60 ± 8 years, mean ± SD, 73% males, 16 healthy, and 17 symptomatic smokers) underwent cardiopulmonary exercise testing (CPET), body plethysmography, nitrogen single-breath washout test (N2SBW), lung diffusion for carbon monoxide (DLCO), and forced oscillation technique (FOT). RESULTS:Compared to healthy subjects, symptomatic smokers showed: 1) reduced breathing reserve (36 ± 17 vs. 49 ± 12%, P = 0.050); 2) exercise induced dynamic hyperinflation (-0.20 ± 0.17 vs. -0.03 ± 0.21 L, P = 0.043); 3) higher residual volume (158 ± 22 vs. 112 ± 22%, P < 0.001); 4) phase 3 slope at N2SBW (4.7 ± 2.1 vs. 1.4 ± 0.6%, P < 0.001); 5) no significant differences in DLCO and FOT results. CONCLUSIONS:In smokers with borderline spirometry, CPET and second-line pulmonary function tests may detect obstructive pattern. These subjects should be referred for second line testing, to obtain a diagnosis, or at least to clarify the mechanisms underlying symptoms. Whether the natural history of these patients is similar to COPD, and they deserve a similar therapeutic approach is worth investigating.
journal_name
Respir Medjournal_title
Respiratory medicineauthors
Di Marco F,Terraneo S,Job S,Rinaldo RF,Sferrazza Papa GF,Roggi MA,Santus P,Centanni Sdoi
10.1016/j.rmed.2017.04.006subject
Has Abstractpub_date
2017-06-01 00:00:00pages
7-13eissn
0954-6111issn
1532-3064pii
S0954-6111(17)30108-7journal_volume
127pub_type
杂志文章abstract::Rheumatoid arthritis (RA)-associated constrictive bronchiolitis is a severe condition with no established efficient treatment. A 55-year-old woman with seropositive RA developed rapidly progressive constrictive bronchiolitis confirmed by lung biopsy. Her clinical condition worsened despite steroids and azathioprine. T...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2004.09.001
更新日期:2005-04-01 00:00:00
abstract::Limited knowledge exists about development of bronchial hyperresponsiveness (BHR) through adolescence. We aimed to assess changes in and risk factors for BHR in adolescence. From a Norwegian birth cohort 517 subjects underwent clinical examinations, structured interviews and methacholine challenges at age 10 and 16. B...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2011.09.013
更新日期:2012-02-01 00:00:00
abstract:INTRODUCTION:Dental caries and respiratory tract infections are among the most common infectious diseases worldwide and they both are appearing in the respiratory system. However, their relations are still unclear. This study investigated the association of dental caries on the risk of lower respiratory tract infection...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2019.09.002
更新日期:2019-01-01 00:00:00
abstract::Smoking and body mass index (BMI) are well-documented risk factors that contribute substantially to chronic obstructive pulmonary disease (COPD) and asthma. However, the relations among smoking, obesity, and COPD or asthma remain to be clarified. We conducted a population-based cross-sectional epidemiologic study to e...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2013.04.021
更新日期:2013-09-01 00:00:00
abstract:INTRODUCTION:Multiple Breath Washout (MBW) to measure Lung Clearance Index (LCI) is increasingly being used as a secondary endpoint in multicentre bronchiectasis studies. LCI data quality control or "over-reading" is resource intensive and the impact is unclear. OBJECTIVES:To assess the proportion of MBW tests deemed ...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2018.10.030
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND:Tracheal collapse is a weakness of the tracheal wall leading to expiratory central airway collapse of more than 50% compared to inspiration. It has previously been discussed whether the collapsibility of the greater airways is a stable or a dynamic condition. Indeed, other well-known lung diseases such as as...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2018.11.018
更新日期:2019-01-01 00:00:00
abstract::We have proposed a clinical treatment guideline for the management of acute, severe asthma and chronic obstructive pulmonarydisease (COPD) using the principles of evidence-based medicine. The content is based upon practical clinical issues in need of consensus. A previous study has shown that this particular area is i...
journal_title:Respiratory medicine
pub_type: 指南,杂志文章,实务指引
doi:10.1053/rmed.2002.1332
更新日期:2002-09-01 00:00:00
abstract::This retrospective study was designed to evaluate the safety and efficacy of a bronchoprotective sputum induction protocol in moderate to severe chronic obstructive pulmonary disease (COPD). Forty-two adults with COPD (FEV1 = 51.7 +/- 3.2% predicted (mean +/- SEM)) under went sputum induction using a protocol designed...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1053/rmed.2002.1342
更新日期:2002-07-01 00:00:00
abstract:BACKGROUND:Obstructive sleep apnea (OSA) is a disorder characterized by repetitive obstructions of the upper airway. Individuals with OSA experience intermittent hypoxia, hypercapnia, and arousals during sleep, resulting in increased sympathetic activation. Chemoreflex activation, arising from the resultant oscillatory...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2009.01.010
更新日期:2009-07-01 00:00:00
abstract::Myeloperoxidase (MPO) and human neutrophil lipocalin (HNL) are proteins which are stored in neutrophil granulocytes, in the primary and secondary granules, respectively. These granules or their contents of MPO and HNL are secreted upon activation of the cells, and measurement of these soluble markers in biological flu...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1053/rmed.2000.0776
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVE:To compare the value of closed percutaneous pleural biopsy versus pleuroscopy for diagnosis of undiagnosed exudative pleural effusion in an age-dependent manner. DESIGN:Prospective clinical study. SETTING:University hospitals. PATIENTS:Forty-nine consecutive patients with undiagnosed exudative pleural effu...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/s0954-6111(98)90296-7
更新日期:1998-03-01 00:00:00
abstract::The sick building syndrome has been the subject of research for approximately 10 years. Although it is often suggested that symptoms in office workers are due to circulating micro-organisms or particles, epidemiological studies investigating the relationship between them have been lacking. This cross-sectional study h...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/s0954-6111(06)80060-0
更新日期:1992-05-01 00:00:00
abstract:BACKGROUND:Diagnosing asthma cannot be always easy. It is important to consider the validity of the diagnostic tests, and/or how much more commonly they are positive in patients with asthma compared to healthy subjects and, particularly, to patients with asthma-like symptoms. OBJECTIVE:To evaluate the validity of diag...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2007.01.014
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:Bleach is widely used for household cleaning. Although it is recognized that occupational use of bleach may have adverse respiratory health effects, it is unknown whether common domestic use of bleach may be a risk factor for asthma. AIM:To assess whether the domestic use of bleach for home cleaning is asso...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2016.06.019
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Posturally induced changes in minute ventilation in patients may be autonomically driven. This study aimed to test whether changes in autonomic tone with posture differed between normal and asthmatic subjects and whether this related to changes in indices of ventilation. METHODS:Ten patients with type 1 bri...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2006.08.024
更新日期:2007-05-01 00:00:00
abstract::Bacterial colonization of the lower airways in patients with chronic bronchitis (CB) has been described mainly in patients with co-existing chronic obstructive pulmonary disease (COPD). Although smoking has been identified as a risk factor for bacterial colonization it is not known whether asymptomatic smokers (AS) ca...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1053/rmed.2000.0857
更新日期:2000-09-01 00:00:00
abstract::Samples of lung tissue, taken at time of lung transplant, from 13 Dutch Caucasian patients with idiopathic pulmonary arterial hypertension (iPAH) and 14 patients with non-idiopathic PAH were studied for the presence of human herpes virus-8 (HHV-8). By immunohistochemical staining, in none of patients expression of HHV...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2006.08.015
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:Sarcoidosis patients often are troubled by dyspnea, exercise limitation, and fatigue. Many patients (up to 50-81%) suffer from sarcoidosis-associated fatigue. The etiology of fatigue in sarcoidosis is still unclear. OBJECTIVE:The aim of this study was to assess the relationship between fatigue and both exer...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2016.05.010
更新日期:2016-07-01 00:00:00
abstract:RATIONALE:Asthma is a heterogeneous disease, and a great majority of pediatric patients with asthma demonstrate atopic characteristics and develop a Th2 type cytokine response. Nonatopic asthma, on the other hand, is seen more rarely. METHODS:In this study, levels of IL-5, IL-8 and MMP-9 were measured in exhaled breat...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2015.04.004
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND:The inhaled corticosteroid fluticasone furoate (FF) is efficacious as a once-daily treatment for the management of asthma. Asthma is associated with circadian changes, with worsening lung function at night. We compared the efficacy of once-daily FF in the morning or evening for the treatment of asthma. METH...
journal_title:Respiratory medicine
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.rmed.2015.12.011
更新日期:2016-03-01 00:00:00
abstract:INTRODUCTION:Objective of this study was to validate an activity monitor (DynaPort MoveMonitor [MM], McRoberts, The Hague, The Netherlands) against night-vision video analysis during sleep. METHODS:Twenty patients (65 ± 11 years old, mean body-mass-index: 27 ± 6 kg/m(2)) with different chronic lung diseases were recru...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2014.12.017
更新日期:2015-02-01 00:00:00
abstract::The prevalence of tuberculosis in small solitary lesions of the lung obtained by video-assisted thoracoscopic surgery (VATS) is still unclear. Of 103 lung lesions resected by VATS in 98 patients (47 men, 51 women), 19 were identified macroscopically as inflammatory changes, 78 were neoplastic, and 6 were undefined. Pr...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2005.05.004
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVES:To assess the utility of capsaicin test in the differential diagnosis of non-productive causes of chronic cough and to examine the effects of treatment on this reflex. PARTICIPANTS:86 healthy volunteers and 101 patients with chronic cough: asthma (n: 54) gastroesophageal reflux (n: 35) and post-nasal drip s...
journal_title:Respiratory medicine
pub_type: 临床试验,杂志文章
doi:10.1053/rmed.2002.1460
更新日期:2003-04-01 00:00:00
abstract::The N(2) slope is an index of inhomogeneous distribution of ventilation and has been suggested to be suited for early testing of chronic obstructive pulmonary disease (COPD) in smokers. The aim of the present study was to examine the association between the fraction of exhaled nitric oxide (FENO) and the N(2) slope in...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2005.09.037
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:Slovenia is one of the few countries where IS6110 RFLP is applied for genotyping M. tuberculosis at a nationwide level, which has been in effect since 2000. Based on S6110 RFLP clustering, typical risk factors and routes of M. tuberculosis transmission were identified, such as alcohol abuse, homelessness, an...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/S0954-6111(11)70014-2
更新日期:2011-10-01 00:00:00
abstract::In the UK approximately 1.2 million people have COPD with around 25-40% being underweight and 35% have a severely low fat-free mass index. Measuring their body mass index is recommended and Health care professionals should endeavour to ensure that COPD patients are achieving their nutritional requirements. A narrative...
journal_title:Respiratory medicine
pub_type: 杂志文章,评审
doi:10.1016/j.rmed.2020.106248
更新日期:2020-11-21 00:00:00
abstract:BACKGROUND:Physical activity and health status deteriorate early in the course of chronic obstructive pulmonary disease (COPD). This can only partially be explained by the degree of airflow limitation. Changes in (resting and dynamic) lung volumes are known to be associated with functional impairments and thus might in...
journal_title:Respiratory medicine
pub_type: 杂志文章,多中心研究
doi:10.1016/j.rmed.2013.02.017
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:The current literature suggests a relationship between obstructive sleep apnea (OSA) severity and hematocrit. However, the degree that OSA contributes to clinically significant erythrocytosis is uncertain. The aim of this study is to evaluate this association in a large study sample controlling for multiple ...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2017.07.003
更新日期:2017-09-01 00:00:00
abstract::Exposure to air pollution is associated with adverse health effects, with particulate matter (PM) and ozone (O(3)) both indicated to be of considerable importance. Diesel engine exhaust (DE) and O(3) generate substantial inflammatory effects in the airways. However, as yet it has not been determined whether a subseque...
journal_title:Respiratory medicine
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.rmed.2006.11.010
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:Gas trapping suggesting small airway disease is observed in adult asthmatic suffering from severe asthma. The aim of the study was to assess whether gas trapping could be evidenced in asthmatic children with/without severe exacerbation and with/without symptoms during the past three months. METHODS AND PATI...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2010.05.005
更新日期:2010-08-01 00:00:00