Table 3 Postoperative complications related to laryngeal mask placement

Blood staining degree of the mask(mild/moderate/sever)

3/1/0(4%)

12/3/1(17%)

0.04*

Sore throat (mild/moderate/sever)

6/1/0(7%)

17/3/1(23%)

0.03*

Postoperative oral bleeding

0

5(5%)

0.02*

Tongue frenulum injury

1(1%)

2(2%)

0.55

Laryngeal nerve injury or vocal cord paralysis

0

0

Arytenoid cartilage dislocation

0

0

Maxillary hematoma

0

2

0.15

Difficulty swallowing

3(3%)

7(7%)

0.18

Lingual nerve palsy

0

0