**1. Introduction**

Positive airway pressure (PAP) is considered the gold standard treatment for patient with OSA [1]. Multiple studies showed the effectiveness of the CPAP therapy with reducing subjective symptoms of OSA, and cardiovascular and neurocognitive risks [2, 3].

The efficacy of CPAP treatment is limited due to patient's compliance to therapy. Patient will achieve normal functioning with greater nightly CPAP durations [4]. Patient who fail or intolerant to CPAP therapy should consider alternative treatment options which surgery one of them.

Surgical procedures aim to improve airway patency by recognizing the location(s) of obstruction. Patients need to be selected in awareness of the individual underlying pathology, pathophysiology and anatomy, and severity of the disease and comorbidities.

The anatomical cause of OSA is generally heterogeneous, with multiple potential levels of airway obstruction; therefore, many different surgical procedures have been developed for the treatment of OSA [5].
