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Bacterial infection in chronic obstructive pulmonary disease. A study of stable and exacerbated outpatients using the protected specimen brush.
The lower airways of asymptomatic chronic obstructive pulmonary disease (COPD) patients can be colonized by bacteria, mainly Haemophilus influenza, Streptococcus pneumoniae, and MoraxellaExpand
Acoustic analysis of snoring sound in patients with simple snoring and obstructive sleep apnoea.
Significant differences in the sound power spectrum of snoring sound between subjects with simple snoring and obstructive sleep apnoea patients are demonstrated. Expand
Usefulness of Truncal Obesity Indices as Predictive Factors for Obstructive Sleep Apnea Syndrome
Background: Optimization of the indications for nocturnal polysomnography in the diagnosis of obstructive sleep apnea syndrome (OSAS) could lead to significant reductions in health expenditure. ToExpand
Study of myographic signals from sternomastoid muscle in patients with chronic obstructive pulmonary disease
Analysis of the respiratory muscle activity is a promising technique for diagnosis of respiratory diseases, such as chronic obstructive pulmonary disease (COPD). The sternomastoid muscle (SMM) wasExpand
Time-frequency detection and analysis of wheezes during forced exhalation
Sensitivities between 100% and 71%, as a function of flow level related to wheezing segments detection, were achieved, and limited bandwidth parameters, which measure the bronchodilator response, were studied. Expand
Detection of wheezing during maximal forced exhalation in patients with obstructed airways.
The new method described for studying airway behavior during forced expiratory maneuvers is able to identify and analyze wheeze segments generated in patients with obstructed airways, as evidenced by the greater number of wheezes detected in the patient group, the main finding of this study. Expand
Automatic Differentiation of Normal and Continuous Adventitious Respiratory Sounds Using Ensemble Empirical Mode Decomposition and Instantaneous Frequency
A new classifier that automatically distinguishes normal sounds from CAS is presented, based on the multiscale analysis of instantaneous frequency (IF) and envelope (IE) calculated after ensemble empirical mode decomposition (EEMD). Expand
Index for estimation of muscle force from mechanomyography based on the Lempel-Ziv algorithm.
The MLZ index, like the ARV and RMS parameters, is positively correlated with changes in amplitude of the diaphragm MMG components, but is less affected by components that have non-random behaviour (like structured impulsive noise). Expand
Analyzing dynamic EMG and VMG signals of respiratory muscles
A promising technique is described for evaluating ventilatory disease by studying activity and fatigue in the sternocleidomastoid muscle. We analyze dynamic muscular function in time and frequencyExpand
Measurement of general health status of non-oxygen-dependent chronic obstructive pulmonary disease patients.
Results underscore the importance of measuring symptoms carefully when assessing patients, whose health status is substantially affected by the Chronic obstructive pulmonary disease, and suggest that it is relevant to assess sleep disturbances in these patients. Expand