Ain-Shams Journal of Anesthesiology

Table 5 Incidence of hoarseness and sore throat

From: Efficacy and safety of Cohen Flex-Tip blocker and left double lumen tube in lung isolation for thoracic surgery: a randomized comparative study

Four-grade scale	Hoarseness		p value	A sore throat		p value
Four-grade scale	Left DLT	Cohen blocker	p value	Left DLT	Cohen blocker	p value
No	0	0	0.017^a	0	0	0.028^a
Mild	5	1		6	1
Moderate	2	0		2	1
Severe	0	0		0	0
Incidence (%)	35%	5%	0.017	40%	10%	0.028

^aChi-square test

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