Nihon Kyōbu Shikkan Gakkai zasshi
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Nihon Kyobu Shikkan Gakkai Zasshi · Dec 1991
Comparative Study[Analysis of transmission of continuous adventitious lung sounds in asthmatic patients--a comparison with continuous sounds due to bronchial stenosis].
We studied the acoustic features of continuous adventitious lung sounds in asthmatic patients, and analyzed the characteristics of transmission by comparing the continuous sounds in asthmatic patients with those due to bronchial stenosis. The results were as follows. 1) Continuous adventitious lung sounds in patients with bronchial stenosis confirmed by bronchoscopy were well transmitted to the neck over the trachea. ⋯ The origin of the polyphonic tones was unknown, but they were also relatively well transmitted to the neck over the trachea. It was confirmed that the tracheal region is a very important location for auscultating and monitoring asthmatic patients.