Computerized respiratory sounds in patients with COPD: a systematic review
Cristina Jácome1, Alda Marques
11Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto , Portugal.
COPD
|June 11, 2014
Summary
Computerized respiratory sound analysis offers objective insights for monitoring chronic obstructive pulmonary disease (COPD). Stable COPD patients exhibit normal respiratory sounds similar to healthy individuals, with crackles and wheezes being key adventitious sounds.
Area of Science:
- Respiratory Medicine
- Biomedical Engineering
- Pulmonology
Background:
- Computerized respiratory sound analysis offers objective data for monitoring respiratory conditions.
- Understanding typical respiratory sounds in stable chronic obstructive pulmonary disease (COPD) is crucial for early exacerbation detection.
- Systematizing current evidence on computerized respiratory sounds in stable COPD is needed.
Purpose of the Study:
- To review and systematize existing evidence on computerized respiratory sound characteristics in patients with stable COPD.
Main Methods:
- A systematic literature search was conducted across major databases (Medline, EBSCO, Web of Knowledge, Scopus).
- Seven original research articles meeting the inclusion criteria were analyzed.
Main Results:
- Normal inspiratory sound frequencies at the posterior chest (113–130 Hz) were lower than at the trachea (228 Hz).
- Inspiratory sounds (130 Hz) had higher frequencies than expiratory sounds (100 Hz).
- Crackles were predominantly inspiratory and characterized by specific duration variables; expiratory wheezes were more frequent than inspiratory wheezes.
Conclusions:
- Stable COPD patients' normal respiratory sounds align with patterns observed in healthy individuals.
- Adventitious sounds in COPD are primarily inspiratory crackles and expiratory wheezes.
- Further research with larger cohorts adhering to Computerized Respiratory Sound Analysis (CORSA) guidelines is recommended.
Keywords:
adventitious respiratory soundschronic obstructive pulmonary diseasecomputerized respiratory soundscracklesnormal respiratory soundswheezesMore Related Videos
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