Allergic rhinitis does not constitute a risk factor for obstructive sleep apnea syndrome

Area of Science:

• Sleep Medicine
• Allergology
• Respiratory Medicine

Background:

• Obstructive sleep apnea syndrome (OSAS) involves recurrent upper airway obstruction during sleep.
• Allergic rhinitis is a common condition that can cause nasal obstruction.
• The potential link between allergic rhinitis and OSAS risk requires investigation.

Purpose of the Study:

• To determine if nasal obstruction from allergic rhinitis is a risk factor for developing OSAS.
• To compare sleep parameters and OSAS severity in patients with and without allergic rhinitis.

Main Methods:

• 119 patients with sleep apnea symptoms underwent polysomnography.
• All participants were tested for allergic rhinitis using in vivo and in vitro methods, including nasal eosinophilic cationic protein levels.
• Patients were categorized based on allergic rhinitis diagnosis and OSAS severity (apnea-hypopnea index > 10).

Main Results:

• Only 11.7% of patients were diagnosed with allergic rhinitis; 88.3% were not.
• No significant differences in sleep parameters were found between allergic and non-allergic groups.
• Patients with OSAS (AHI > 10) included 60% of non-allergic individuals versus 50% of allergic individuals, a non-significant difference. Similar findings were observed in allergic subgroups.

Conclusions:

• Allergic rhinitis is not identified as a major risk factor for obstructive sleep apnea syndrome.
• No significant differences in sleep parameters or OSAS prevalence were observed between allergic and non-allergic patients.
• These findings suggest that allergic rhinitis does not substantially contribute to the development of OSAS.