This study aimed to evaluate the effect of isolated nasal surgery on sleep-disordered breathing, particularly apnea-hypopnea index (AHI) and snoring index (SI), Apnea index (AI) and minimal arterial oxygen saturation (MAO2) in adults with obstructive sleep apnea syndrome (OSAS) and nasal obstruction.

Snoring is the noisy breathing that occurs throughout sleep, resulting from the vibration of the structures in the oral cavity, including the soft palate, uvula, tonsils, base of the tongue, epiglottis, as well as pharyngeal walls.

Obstructive sleep apnea syndrome (OSAS) is a respiratory sleep disorder distinguished by repeated episodes of partial or total occlusion of the upper airways throughout sleep. This blockage is typically associated with a decrease (hypopnea) or total cessation (apnea) of airflow in the upper airways, and sustained thoracic-diaphragmatic respiratory movements.

Inclusion Criteria:

• Age above 18 years.
• Both sexes.
• Patients with anatomical nasal obstruction due to septal deviation, hypertrophied inferior turbinate (HIT), or nasal polyps refractory to medical treatment.
• Presence of snoring and obstructive sleep apnea (OSA).
• Fitness for surgery.

Exclusion Criteria:

• Central or mixed sleep apnea.
• Previous nasal surgery.
• Unfitness for surgery.
• Pathological obesity.
• History of cardiopulmonary disease or asthma.

The data will be available upon a reasonable request from the corresponding author after the end of study for one year.

After the end of study for one year.

The data will be available upon a reasonable request from the corresponding author.