The degree of upper airway narrowing can be aggravated according to the sedation depth. The monitoring of sedation depth during DISE is critical, especially in patients with mouth breathing.

Vascular leiomyoma may arise from the muscular layer of blood vessel wall, which is extremely rare in the nasal cavity or paranasal sinuses. According to the online search on pubmed and koreamed, only 62 cases with vascular leiomyoma arising from nasal cavity or paranasal sinuses, including 13 cases of the nasal septum, have been reported since the first case was reported in 1966. The authors experienced a case of vascular leiomyoma arising in the left side of nasal septum in a patient. It was successfully removed by trans-nasal approach. In addition, we conducted a literature review of clinical features of the 62 cases of vascular leiomyoma in the nasal cavity.

No abstract