*3.1.6 Airway assessment*

For the airway, endoscopic examination is often performed to determine the cause of airway obliteration. The cause can either be due to soft tissue or hard tissue or both. Specific recognition of the anatomical restriction allows the surgical team to decide on the most ideal corrective surgical intervention such as shown in **Figure 3**. As most syndromic craniosynostosis patients are classically presented with midface hypoplasia, polysomnography (PSG) is the gold standard to diagnose obstructive sleep apnea (OSA).

**Figure 3.** *Airway assessment using software and CT scan.*
