The acute effects of the PAP treatment on nasal mucosa in patients with OSAS

Abstract BACKGROUND. Obstructive sleep apnea syndrome (OSAS) is a common disease in developed countries. PAP (Positive Airway Pressure) therapy is the most commonly used treatment modality, particularly in moderate to severe OSAS patients. However, several side effects make PAP treatment challenging to tolerate. This study examined the acute effects of PAP treatment on nasal functions. MATERIAL AND METHODS. This study included 32 patients who were diagnosed with severe OSAS following a PSG test and started PAP treatment. Symptom analysis was carried out with the SNOT-20 questionnaire; nasal physiological analysis was carried out with rhinomanometry and acoustic rhinometry tests performed before and after PAP treatment for one night and for one month. A saccharin test was carried out to assess the nasal mucociliary clearance before and after the treatment. RESULTS. A statistically significant difference between nasal symptom scores (p=0.003) and sleep quality (p=0.006) was observed in SNOT-20 questionnaire results. Total nasal resistance was significantly increased after one night’s sleep with PAP and after a one-month treatment with PAP. It was found that there was a statistically significant relation between the total nasal resistance value and PAP pressure. CONCLUSION. This study shows that PAP treatment increases nasal congestion after one night of treatment and after one month of treatment with a cumulative effect. PAP therapy positively affects sleeping quality and life quality, while negatively affecting nasal functions in the acute period.