House Dust Mite Related Allergic Rhinitis and REM Sleep Disturbances

Area of Science:

• Sleep Medicine
• Allergology
• Respiratory Medicine

Background:

• Sleep disturbances are prevalent in allergic rhinitis (AR) patients.
• Perennial allergens like house dust mites (HDM) can negatively impact respiratory function and quality of life (QOL) during sleep.
• Rapid Eye Movement (REM) sleep, crucial for cognition and restfulness, may be impaired in AR patients with sleep-disordered breathing (SDB), even with normal polysomnography (PSG) indices.

Purpose of the Study:

• To investigate the hypothesis that AR patients with HDM allergy exhibit REM-specific SDB.
• To identify elevated REM-RDI (Respiratory Disturbance Index during REM) values as a marker for REM-specific SDB in HDM-allergic patients.

Main Methods:

• Retrospective analysis of 100 patients, including 47 with positive HDM allergy testing.
• All patients underwent polysomnography (PSG) with calculation of RDI specifically during REM sleep.
• Multivariate logistic regression models were used to assess the association between allergic status and sleep parameters, controlling for confounders.

Main Results:

• HDM-allergic patients were significantly more likely (OR 4.29) to have moderate/severe REM-RDI (≥15 events/h) compared to allergy-negative patients.
• This association remained significant even when considering overall AHI, RDI, or REM-AHI.

Conclusions:

• Respiratory allergies to HDM are significantly associated with SDB characterized by elevated REM-RDI.
• This REM-specific SDB occurs independently of standard all-night sleep apnea or respiratory disturbance indices.
• Identifying HDM allergenicity and REM sleep disturbances has clinical implications for managing AR, SDB, and upper airway surgery patients, potentially improving treatment outcomes and QOL.