C. Guilleminault et al., EXCESSIVE DAYTIME SOMNOLENCE IN WOMEN WITH ABNORMAL RESPIRATORY EFFORTS DURING SLEEP, Sleep, 16(8), 1993, pp. 190000137-190000138
An abnormal level of respiratory efforts, indicated by significant inc
rease in peak negative esophageal pressure (Pes), can be associated wi
th daytime somnolence in snoring pre-menopausal women. No drop in oxyg
en saturation (SaO(2)) or visual evidence of transient electroencephal
ographic (EEG) arousals can be found at repeat polysomnography. Nasal
continuous positive airway pressure (CPAP) titrated on Pes measurement
s eliminates somnolence.