Table I. Frequency of LMA complications in patients aged 3-70 years who underwent major ear surgery in Amir Alam Hospital from 1999 to 2006.
| Complication | No. | Percent |
| Cough | 10 | 0.5% |
| Haemodynamic instability | 246 | 12.3% |
| Sore throat | 2 | 0.1% |
| Nausea | 139 | 7% |
| Vomiting | 46 | 2.3% |
| Arytenoid dislocation | 1 | 0.05% |
| Dysphonia | 2 | 0.1% |
| Laryngospasm | 1 | 0.05% |
| Failure of LMA insertion | 3 | 0.15% |
| Vomiting in ward | 16 | 15.6% |
| Nausea in ward | 312 | 0.8% |
| Vocal cord paralysis | 0 | 0% |
| Dimenhydrinate administration before surgery | 1657 | 82.9% |
| Gastric regurgitation without aspiration immediately before LMA extraction | 5 | 0.25% |
| Aspiration | 0 | 0% |
| LMA dislocation during anaesthesia | 20 | 1% |