Table 1 Overview of the investigated LMAs.

From: Upper airway resistance during use of a laryngeal mask airway is flow-dependent and dominated by the laryngeal resistance

LMA size

#1

#1.5

#2

#2.5

#3

#4

#5

#6

Patient weight (kg)

< 5

5–10

10–20

20–30

30–50

50–70

70–100

> 100

Minimal internal diameter (mm)

5.2

7.3

8.6

8.5

8.5

9.6

10.6

11.3

Length of the airway (cm)

10.3

12.0

13.8

15.9

15.9

17.8

20.0

22.0

  1. Overview of the different LMA-sizes and the recommended patient’s weight for use. Additionally minimal internal diameter and length of the airway were presented. Data was extracted of the user’s manual17.
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