Krumpe P E, Cummiskey J M
Am Rev Respir Dis. 1980 Nov;122(5):797-801. doi: 10.1164/arrd.1980.122.5.797.
Laryngeal sounds are produced by air flow across the glottis. We found that apnea could be identified by the cessation of laryngeal sounds during continuous monitoring. We recorded laryngeal sounds using a microphone coupled to a stethoscope head taped to the subject's lateral neck. This signal was conditioned using a commercially available amplifier and displayed on a time-based recorder. Laryngeal sound monitoring of apnea could be useful in sleep studies.
喉部声音是由气流穿过声门产生的。我们发现，在持续监测过程中，呼吸暂停可通过喉部声音的停止来识别。我们使用一个与贴在受试者侧颈部的听诊器头相连的麦克风记录喉部声音。该信号通过市售放大器进行调节，并显示在基于时间的记录仪上。对呼吸暂停进行喉部声音监测在睡眠研究中可能会有帮助。
