| Arrhythmia |
| Empyema |
| Gastric perforation |
| Myocardial infarction |
| Otitis media |
| Pulmonary intubation |
| Rupture and leakage of mercury weight |
| Tube feeding into pulmonary tree |
| Clogging |
| Epistaxsis |
| Gastrointestinal bleeding |
| Nasal mucosal ulceration |
| Pneumothorax |
| Pyriform sinus perforation |
| Tracheobronchial trauma |
| Tube dislodgment |
| Duodenal perforation |
| Esophageal perforation |
| Knotted tubes |
| Nasal trauma |
| Pulmonary aspiration |
| Reflux esophagitis, ulceration, or stricture |
| Tracheoesophageal fistula |
| Tube obstruction |
