Abstract：
:Intrapulmonary percussive ventilation (IPV) is a ventilatory technique that delivers bursts of high-flow respiratory gas into the lung at high rates, intended for treating acute respiratory failure and for mobilization of secretions. We performed a study, aimed at assessing the physiological response to IPV, on patients' breathing pattern, inspiratory effort, lung mechanics and tolerance to ventilation. Ten COPD patients underwent randomized trials of IPV through a face mask at different pressure/frequency combinations (1.2 bar/250 cycles/min; 1.8/250; 1.2/350; 1.8/350), separated by return to baseline (SB), using the IMP2 ventilator. In 5 patients we have also compared the physiological changes of IPV with those obtained during pressure support ventilation (PSV). Minute ventilation did not vary among the trials, but tidal volumes (VT) were significantly greater during 1.2/250, 1.2/350 and 1.8/350 compared to SB. The pressure time product of the diaphragm per minute (PTPdi/min) estimate of the diaphragm oxygen expenditure was also significantly reduced during 1.2/250 and 1.8/250 (209 cmH2O x s/min for SB vs. 143 and 125 for 1.2/250 and 1.8/250, respectively P < 0.05), as well as dynamic intrinsic end-expiratory pressure (PEEPi,dyn). Similar reduction in PTPdi/min were obtained also during PSV. Tolerance to ventilation and oxygen saturation were satisfactory and did not change during the different trials. In 5 normal subjects a prolonged apnea trial lasting > 2 min was also performed, without any significant decrease in SaO2 or subjective discomfort. In conclusion, IPV was able to guarantee an adequate ventilation, while inducing a significant unloading of the diaphragm during the "low-frequency" trials.
journal_name
Respir Medjournal_title
Respiratory medicineauthors
Nava S,Barbarito N,Piaggi G,De Mattia E,Cirio Sdoi
10.1016/j.rmed.2006.01.010subject
Has Abstractpub_date
2006-09-01 00:00:00pages
1526-33issue
9eissn
0954-6111issn
1532-3064pii
S0954-6111(06)00017-5journal_volume
100pub_type
杂志文章,随机对照试验abstract：BACKGROUND:Sarcoidosis is characterised by a T-lymphocytic alveolitis with a typically increased T4/T8 ratio. The diagnostic value of this ratio is under debate. AIM OF THE WORK:We prospectively evaluated the influence of BAL pre-lavage and the impact of bronchial contamination on BAL differential cell count in 108 BA...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2006.11.027
更新日期：2007-09-01 00:00:00
abstract：:Lung function in cases of chronic airflow obstruction (CAO) due to tuberculous destroyed lung, which is still common in Korea, has not been objectively investigated. We evaluated lung functions and postbronchodilator responses in 21 CAO patients with a forced expiratory volume in 1 s (FEV1) of 30-65% of the predicted ...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/s0954-6111(03)00255-5
更新日期：2003-11-01 00:00:00
abstract：:The measurement of CA50 in serum and pleural fluid by immunoradiometric assay was presented in 45 (27 malignancy and 18 tuberculosis) patients with pleural effusion. The mean CA50 level in malignant effusion (89.26 +/- 122.32 U ml-1) was significantly higher than that in tuberculous effusion (5.18 +/- 8.65 U ml-1) (P ...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/0954-6111(94)90170-8
更新日期：1994-01-01 00:00:00
abstract：OBJECTIVE:To investigate the usefulness of a self-reported respiratory health transition question over 10 years through reliability, ability to capture long-term asthma trajectory and predictive ability. SETTINGS:In two 20-year cohorts (Asthma-E3N, n = 16,371, 61-88 years; EGEA, n = 1254, 27-82 years), perceived 10-ye...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2014.11.010
更新日期：2015-02-01 00:00:00
abstract：AIMS:This study tested inhibitory effects of in vitro Montelukast treatment on nasal airway epithelial cells (AEC) cultured from asthmatic patients treated with Montelukast with and without concomitant allergic rhinitis. We further examined the effect of Montelukast withdrawal in these patients on cytokine release from...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2013.09.006
更新日期：2013-12-01 00:00:00
abstract：:The differential diagnosis of pleural masses is limited. Asbestos-related disease and invasive bronchogenic carcinoma make up the majority of cases. The diagnostic yield of biopsies is low, and invasive procedures are often required to achieve diagnosis. A variety of imaging techniques are available to help differenti...
journal_title：Respiratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.rmed.2007.11.010
更新日期：2008-03-01 00:00:00
abstract：INTRODUCTION:Current and former smokers with normal spirometry and with Preserved Ratio Impaired Spirometry (PRISm) experience respiratory events similar to chronic obstructive pulmonary disease (COPD) exacerbations. Exacerbations significantly reduce quality of life (QoL) in COPD patients however the effect of respira...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2019.105820
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:We have observed that Doctors often perceive that cystic fibrosis (CF) is exceptionally rare in non-whites, and that this bias has repeatedly resulted in diagnostic delay. We therefore compared the age at diagnosis, genetic features and relative prevalence of CF in non-whites and white patients in the West M...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/s0954-6111(05)80065-4
更新日期：1994-10-01 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
abstract：:In patients with asthma, exercise-induced symptoms are well recognized and frequently limiting. Currently available beta 2-receptor agonists have a short duration of action and breakthrough symptoms may occur. We studied the efficacy of the recently developed long acting inhaled beta 2-agonist salmeterol with respect ...
journal_title：Respiratory medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0954-6111(93)90070-g
更新日期：1993-08-01 00:00:00
abstract：:Assessment of asthma severity is important for disease management. Analysis of symptoms past and present, and previous and actual lung function measurements (including variability) is the usual method of evaluation and classification of asthma disease severity and activity. However, symptoms and lung function alterati...
journal_title：Respiratory medicine
pub_type： 杂志文章,评审
doi：10.1016/s0954-6111(97)90003-2
更新日期：1997-11-01 00:00:00
abstract：BACKGROUND:There is wide variation in the techniques deployed to diagnose tuberculosis in the UK, with little agreement on which tools or strategies are cost effective. This analysis therefore comprehensively evaluated the cost effectiveness of currently available diagnostic strategies for routine diagnosis of TB in th...
journal_title：Respiratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.rmed.2011.10.005
更新日期：2012-02-01 00:00:00
abstract：:Lactose is widely used as a carrier of drugs in inhalation devices for asthmatic patients, but some clinicans have suspected that it may cause bronchoconstriction. Only a few studies have been done to examine this and the results are not uniform. This study was conducted to determine the effects of inhalation grade la...
journal_title：Respiratory medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1053/rmed.2001.1150
更新日期：2001-11-01 00:00:00
abstract：AIM:To assess the effect of intrapleural urokinase, vis-à-vis simple pleural drainage, on residual pleural thickening in a series of patients suffering from loculated tuberculous pleural effusion. PATIENTS AND METHOD:Twenty-nine patients (21 males and 8 females) with loculated pleural effusion were studied. These pati...
journal_title：Respiratory medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.rmed.2006.02.010
更新日期：2006-11-01 00:00:00
abstract：BACKGROUND:The 6 min walk test (6MWT) provides prognostic information in various respiratory diseases, but limited data exist in cystic fibrosis (CF) adults. METHODS:Consecutive CF adults who performed 6MWT at Cochin Hospital (Paris, France) over 12 years were analyzed. The cut-off 6 min walking distance (6MWD) value ...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2013.10.001
更新日期：2013-12-01 00:00:00
abstract：:Weight loss has been recognized as a feature of advanced emphysema and a factor of poor prognosis, but its mechanisms remain obscure. Studies have demonstrated high serum concentrations of TNF-a (cachexin) in chronic obstructive pulmonary disease (COPD) patients with emphysema. Pink puffers (PP) COPD patients have wor...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1053/rmed.2002.1322
更新日期：2002-08-01 00:00:00
abstract：:Ulcerative colitis is one of the few diseases in which smoking appears to confer some benefit (1). We report a patient whose ulcerative colitis deteriorated on several occasions on stopping cigarettes, and improved on restarting smoking. As a result, she continued smoking despite developing airflow limitation and seve...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/0954-6111(95)90235-x
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVE:The usefulness of any questionnaire in clinical management and research trials depends on its ability to indicate a likelihood of treatment success during follow-up. The Minimal Clinically Important Difference (MCID) reflects a clinically relevant change score. The aim of this study was to estimate the MCID f...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2011.05.004
更新日期：2011-09-01 00:00:00
abstract：:Patients with immune deficiencies can present with variable clinical phenotypes. This often translates into a significant delay in their diagnosis, and resultant patient morbidity. This review summarises the most common types of immunodeficiency disorders, primary and secondary, along with their key features. It provi...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2020.106100
更新日期：2020-09-01 00:00:00
abstract：INTRODUCTION:Non-cystic fibrosis(CF) bronchiectasis has been recognized in children for the past 200 years. Early childhood pneumonia and underlying conditions such as immunodeficiency, primary ciliary dyskinesia(PCD), and congenital lung pathology should be considered in the etiology. The aim of our study was to descr...
journal_title：Respiratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.rmed.2018.02.013
更新日期：2018-04-01 00:00:00
abstract：:Patients using domiciliary nasal ventilation, or long-term oxygen, require regular assessment which could be carried out in the home. Blood gas analysis may be regarded as an essential part of the assessment. The present study investigated the effect of a 1-h time delay on the measurement of capillary blood gases. Fou...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/s0954-6111(96)90207-3
更新日期：1996-02-01 00:00:00
abstract：RATIONALE:Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive fibrosing interstitial pneumonia. The pathogenicity of IPF has been widely investigated but still remains to be clarified. Efferocytosis, the specialized recognition and ingestion of apoptotic cells by phagocytes, is essential for the resolution of...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2012.08.020
更新日期：2012-12-01 00:00:00
abstract：:Total lung capacity was measured in 16 workers with pulmonary asbestosis using four standard methods: body plethysmography, radiographic lung area, helium dilution by multiple breath and by single breath (alveolar volume). All men had irregular opacities of ILO profusion category 2/1 or greater and four had pleural pl...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/0954-6111(93)90138-p
更新日期：1993-02-01 00:00:00
abstract：OBJECTIVE:We investigated the real-world effectiveness of several drugs (including short- and long-acting beta-agonists [SABAs and LABAs], inhaled corticosteroids [ICS], and antibiotics) in preventing severe asthma exacerbations by carrying-out a large observational study based on the healthcare utilization databases o...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2016.05.004
更新日期：2016-10-01 00:00:00
abstract：OBJECTIVE:Although high-resolution computed tomography (HRCT) is useful for the characterization of minute morphological changes in the lungs, no study has investigated risk factors for lung involvement detected by HRCT in patients with Sjögren's syndrome with or without respiratory symptoms. The aim of the current stu...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2018.02.023
更新日期：2018-04-01 00:00:00
abstract：RATIONALE:Combination therapy with corticosteroid and long-acting β(2)-agonists (LABA) in a single inhaler is associated with superior effects on airway function and exercise performance in COPD compared with LABA monotherapy. The physiological effects of adding inhaled corticosteroid monotherapy to maintenance broncho...
journal_title：Respiratory medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.rmed.2011.08.021
更新日期：2011-12-01 00:00:00
abstract：BACKGROUND:Computed tomography (CT) has been used for non-invasive quantitative assessment of airway dimensions, potentially showing airway remodeling, in asthma. However, most studies have examined either only one airway or only airways in anatomically unidentified cross-sections. Using software capable of precisely i...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2010.06.013
更新日期：2010-12-01 00:00:00
abstract：:Long-term oxygen therapy (LTOT) in patients with chronic hypoxaemia is an expanding field. Traditional stationary oxygen, with and without portable compressed gas cylinders, and portable liquid oxygen equipment is available today. No official guidelines exist for the prescription of liquid oxygen vs traditional oxygen...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/s0954-6111(98)90037-3
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:We hypothesized that increased pulmonary vascular permeability may play a role in the pathogenesis of an acute exacerbation of the idiopathic interstitial pneumonias (AE-IIPs). Angiopoietin-2 (Ang-2) promotes endothelial activation, destabilization, and inflammation. The purpose of this study w...
journal_title：Respiratory medicine
pub_type： 杂志文章
doi：10.1016/j.rmed.2016.05.012
更新日期：2016-08-01 00:00:00
abstract：BACKGROUND:Non-invasive ventilation and exercise training might prove beneficial in the management of COPD patients. OBJETIVE:to compare the combined use of exercise training and non-invasive ventilation with the two interventions separately in chronic respiratory failure due to chronic obstructive pulmonary disease. ...
journal_title：Respiratory medicine
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.rmed.2014.10.005
更新日期：2014-12-01 00:00:00
