Table 4 ProSeal LMA insertion parameters and incidence of postoperative sore throat

Insertion time

17.4 ± 6.1

12.6 ± 4.7

<0.001^***

Insertion condition

  Smooth

62 (89.9%)

67 (89.4%)

  Mild resistance

2 (2.9%)

1 (1.3%)

0.413

  Two attempts

2 (2.9%)

6 (8.0%)

  Failed insertion^#

3 (4.3%)

1 (1.3%)

Viewing glottic field

   1

0 (0%)

0 (0%)

0.201

   2

4 (6.1%)

2 (2.7%)

   3

42 (63.6%)

57 (77.0%)

   4

20 (30.3%)

15 (20.3%)

   5

0 (0%)

0 (0%)

Viewing esophagus

   A

59 (89.4%)

69 (93.2%)

0.435

   B

6 (9.1%)

3 (4.1%)

   C

1 (1.5%)

2 (2.7%)

Sore throat in PACU

  None

44 (66.7%)

56 (75.7%)

0.377

  Mild

20 (30.1.1%)

18 (24.3%)

  Moderate

1 (1.5%)

0 (0%)

  Severe

1 (1.5%)

0 (0%)

Sore throat on the first

Postoperative morning

  None

52 (78.8%)

69 (93.2%)

0.035^*

  Mild

11 (16.7%)

3 (4.1%)

  Moderate

3 (4.5%)

2 (2.7%)

  Severe

0 (0%)

0 (0%)