Nasal Obstruction Linked to Snoring, Daytime Sleepiness
Resting energy expenditure linked to sleep-disordered breathing
WEDNESDAY, Dec. 17 (HealthDay News) -- Nasal obstruction contributes to snoring and excessive daytime sleepiness regardless of whether a person has allergic rhinitis, and this and other forms of sleep-disordered breathing are associated with resting energy expenditure, according to two reports published in the December issue of the Archives of Otolaryngology - Head & Neck Surgery.
In the first study, Nobuaki Hiraki, M.D., of the University of Occupational and Environmental Heath in Kitakyushu, Japan, and colleagues performed a prospective study using questionnaires from 1,459 respondents to measure incidence of allergic rhinitis, snoring and excessive daytime sleepiness. In the other study, Eric J. Kezirian, M.D., of the University of California San Francisco, and colleagues evaluated 212 adults having signs or symptoms of sleep-disordered breathing. Sleep was monitored through an attended polysomnography, and the investigators determined resting energy expenditure using a calorimeter.
Hiraki's team found that the incidence of snoring and excessive daytime sleepiness was higher in respondents with nasal obstruction. However, allergic rhinitis was not associated with either of these symptoms, they report. Kezirian and colleagues determined that participants with sleep-disorder breathing had an average resting energy expenditure of 1,763 kcal/d. Further, although confounded by body weight, resting energy expenditure was independently associated with the apnea-hypopnea index.
"Nasal obstruction is associated with snoring and excessive daytime sleepiness in individuals with or without allergic rhinitis. Allergic rhinitis without nasal obstruction is not associated with sleep-disordered breathing or excessive daytime sleepiness," Hiraki and colleagues write.