[Retracted] The Relationship between Cuff Pressure and Air Injection Volume of Endotracheal Tube: A Study with Sheep Trachea Ex Vivo

Table 1

The pressure corresponding to the different air injection volume (1 ml, 1.4 ml, 1.8 ml, 2.2 ml, 2.6 ml, and 3 ml) which calculated according to the first part formulas.

Tracheal group	Tracheal tube size	Theoretical pressure (1.0 ml)	Theoretical pressure (1.4 ml)	Theoretical pressure (1.8 ml)	Theoretical pressure (2.2 ml)	Theoretical pressure (2.6 ml)	Theoretical pressure (3.0 ml)
A	6.5	15.9	29.4	47.1	69.1	95.2	125.6
	7	13.4	23.8	37.5	54.4	74.5	97.7
	7.5	11.9	20.4	31.3	44.7	60.5	78.8
B	6.5	15.9	28.2	44.5	64.6	88.8	116.8
	7	13.4	23.7	37.3	54.2	74.5	98.2
	7.5	10.3	17.2	26.1	37.1	50.1	65.3
C	6.5	11.5	20.6	31.8	45.3	61.1	79.0
	7	10.8	17.6	25.6	34.9	45.5	57.3
	7.5	11.1	17.7	25.2	33.7	43.0	53.3
D	7	7.3	13.1	20.6	30.0	41.3	54.3
	7.5	9.1	16.0	24.2	33.6	44.2	56.1
	8	9.3	15.7	22.5	29.6	37.0	44.8
E	7	9.1	16.1	24.0	32.7	42.4	53.0
	7.5	9.2	15.9	23.1	30.9	39.3	48.2
	8	7.6	13.8	20.3	27.1	34.3	41.7