Table 2. Endoscopic findings in COVID-19 patients.

Endoscopic findings		n (%)
Absence of alterations		28 (27.2)
Laryngeal changes		30 (29.1)
	Laryngitis/laryngeal edema	23 (22.3)
	Laryngeal ulcer/polyp/granuloma	6 (5.8)
	Vocal fold paralysis	1 (1.0)
Tracheal alterations		31 (30.1)
	Tracheal laceration	21 (20.4)
	Tracheitis	5 (4.9)
	Ulceration or granulation tissue (granuloma)	4 (3.9)
	Malacia	1 (1.0)
Alterations in the bronchi		39 (37.9)
	Presence of secretion or clots	35 (34)
	Mucosa laceration	3 (2.9)
	Active bleeding	1 (1.0)
Total number of alterations		100