These ETT sizes are based on attempting to insert the below listed ETT's thru the LMA Unique disposable LMA's
Maximum ETT size to fit thru LMA lumen
|1.0||3.5 uncuffed||3.5 cuffed|
|1.5||4.0 uncuffed||4.0 cuffed|
|2. 0||5.5 uncuffed||5.5 cuffed|
|2.5||5.5 uncuffed||5.5 cuffed|
|3.0||7.0 uncuffed||6.5 cuffed|
|4.0||7.0 uncuffed||6.5 cuffed|
|5.0||7.0 uncuffed||7.0 cuffed|
A.) surgilube recommended for placement of ETT thru LMA lumen
B.) Recommend undersizing by "one half" ETT size to maximize ease of slip thru of ETT thru LMA.
C.) Caution of tearing the ETT cuff of damaging the pilot baloon/tubing while placing the ETT thru the LMA.
ETT's used for sizing were as follows:
Uncuffed ETT's- 5.0, 5.5, 6.0, 6.5, 7.0.
Cuffed ETT's- 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 9.0
b. Portex(Smith): 5.0 cuffed ETT
c. Mallincrodt: uncuffed ETT's only: 2.5, 3.0, 3.5, 4.0, 4.5
d. Kimberly Clark: cuffed ETT's only 3.0, 3.5, 4.0, 4.5