to evaluate the relationship of nocturnal asthma to sleep , eight asthmatics with unstable asthma ( seven with history of nocturnal wheeze ) and four reference subjects were submitted to all-night polysomnography , including the continuous evaluation of esophageal and supraglottic pressure ( with two catheters ) as well as of airflow ( with a face mask ) , so as to derive total lung resistance , supraglottic resistance , and , by subtraction lower respiratory resistance ( rlr ) .
C0004096
asthma
C0024109
lung