| Popis: |
Videotaping was conducted at home, in cooperation with patients' mothers. The recorded sounds were then analyzed. Compared with snoring sounds obtained via polysomnography, representative cases that demonstrate the usefulness of videotaping at home were presented. The subjects were eight children who received polysomnography, recording the snoring at our department during the 1-year period, from March 2002 to February 2003. The snoring recording was conducted using polysomnography. As for the taping method, the sounds from the microphone were taken into an acoustic analysis system II (TDT) and recorded on an MD, using a ZS-M75 (SONY). As for the method of analysis, the MD-recorded snore sounds were analyzed using Time Frequency Representation (TFR) (Avaaz Innovation), an acoustic analysis software program for Windows. The snoring sounds recorded by home video camera as well as those obtained by polysomnography were analyzed. The snoring sounds obtained via polysomnography and by the home video camera contained noise components on sound spectrograms and showed waves in which the basic frequency changed. It thought that the noise made by the adenoids and the hypertrophy of palatine tonsil were not the cause of snoring, but rather that the vibration of the soft palate and the uvula participated in pediatric snoring. |
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