An alternate method of recording airflow during sleep.
Respiratory activity recordings in polysomnographic recordings are important in the identification of the sleep apnea syndrome. However, simultaneous recordings of both respiratory effort and airflow are necessary to accomplish this identification. We describe a relatively inexpensive and trouble-free face mask that makes use of a linear thermistor in the ventilation tube to accomplish the recording of airflow in a noninvasive manner.
D006801:Humans; D012123:Pulmonary Ventilation; D012891:Sleep Apnea Syndromes / Q000175:diagnosis; D012894:Sleep Stages; D013147:Spirometry / Q000295:instrumentation*