International journal of chronic obstructive pulmonary disease
-
Int J Chron Obstruct Pulmon Dis · Jan 2017
Randomized Controlled TrialEffects of a simple prototype respiratory muscle trainer on respiratory muscle strength, quality of life and dyspnea, and oxidative stress in COPD patients: a preliminary study.
The aim of this study was to evaluate the efficiency of a simple prototype device for training respiratory muscles in lung function, respiratory muscle strength, walking capacity, quality of life (QOL), dyspnea, and oxidative stress in patients with COPD. ⋯ This study proposes that a simple prototype device can be used clinically in COPD patients as a standard device to train respiratory muscles, improving lung function and QOL, as well as involving MDA and NO levels.
-
Int J Chron Obstruct Pulmon Dis · Jan 2017
Multicenter StudyMulticenter study of the COPD-6 screening device: feasible for early detection of chronic obstructive pulmonary disease in primary care?
Early detection of COPD may reduce the future burden of the disease. We aimed to investigate whether prescreening with a COPD-6 screening device (measuring FEV1 and FEV6) facilitates early detection of COPD in primary care. ⋯ Prescreening with the COPD-6 device showed acceptable specificity for the selection of subjects for diagnostic spirometry and is likely to be a useful alternative to current practice in primary care.
-
Int J Chron Obstruct Pulmon Dis · Jan 2017
Multicenter Study Observational StudyActive smoking and COPD phenotype: distribution and impact on prognostic factors.
Smoking can affect both the phenotypic expression of COPD and factors such as disease severity, quality of life, and comorbidities. Our objective was to evaluate if the impact of active smoking on these factors varies according to the disease phenotype. ⋯ Active smoking is more common among exacerbator phenotypes and appears to affect quality of life and dyspnea grade differently, depending on the clinical expression of the disease.
-
Int J Chron Obstruct Pulmon Dis · Jan 2017
Comparative StudyComparison of pulsed versus continuous oxygen delivery using realistic adult nasal airway replicas.
Portable oxygen concentrators (POCs) typically include pulse flow (PF) modes to conserve oxygen. The primary aims of this study were to develop a predictive in vitro model for inhaled oxygen delivery using a set of realistic airway replicas, and to compare PF for a commercial POC with steady flow (SF) from a compressed oxygen cylinder. ⋯ For the POC tested, PF delivered similar, though consistently lower, volume-averaged FiO2 than SF rates equivalent to nominal PF settings. Assessment of PF oxygen delivery using POC pulse characteristics alone may be insufficient; testing using airway replicas is useful in identifying possible cases of failure and may provide a better assessment of FiO2.
-
Int J Chron Obstruct Pulmon Dis · Jan 2017
Determinants of each domain of the Short Physical Performance Battery in COPD.
The Short Physical Performance Battery (SPPB) is an assessment tool with good prognostic value in COPD. It includes the following: standing balance, 4 m gait speed test (4MGS), and the timed five-repetition sit-to-stand test (5STS). The specific differences in determinants between these three tasks have not been adequately characterized in COPD patients. We aimed to identify health-related, functional, and psychological determinants of each SPPB test. ⋯ The three SPPB tests did not provide equivalent information regarding a COPD patient's status. The 5STS was associated with health status factors, while the 4MGS was associated with psychological factors.