The Efficacy of Ultrasound-Guided Superior Laryngeal Nerve Block as an Adjuvant to General Anesthesia during Suspension Laryngoscopy Vocal Cord Polypectomy

Table 4

Incidence of severe cough (grades 2 and 3).

	Group C	Group S	value
Just before extubation(bucking)	19 (47.5%)	9 (22.5%)	0.016
Postextubation
10 min	11 (27.5%)	5 (12.5%)	0.028
1 h	5 (12.5%)	1 (2.5%)	0.054
4 h	0 (0%)	0 (0%)	0.062

. Data are expressed as the number (% of total).