What are the intercorrelations between orthognathic surgery and OSAHS?

Introduction: Obstructive sleep apnea-hypopnea syndrome (OSAHS) is characterized by total (apnea) or partial (hypopnea) obstruction of the upper airway during sleep, resulting in hypoxemia and hypercapnia and leading to compensatory respiratory effort. Symptoms include loud snoring, nocturnal choking, witnessed apneas, frequent awakenings, daytime sleepiness, and cardiovascular comorbidities. Diagnosis is based on patient history, clinical examination, polysomnography, and upper airway computed tomography. This study aimed to evaluate pre- and postoperative changes in the apnea-hypopnea...