Complications related to PD
| Complication | No of procedures (n=985) | Percentage (%)* |
| None | 945 | 95.9 |
| Post-procedural pain | 31 | 3.1 |
| Fever | 16 | 1.6 |
| Perforation | 13 | 1.3 |
| Aspiration | 3 | 0.3 |
| Bleeding | 2 | 0.2 |
↵* Proportions do not add up to 100% as some patients had more than one complication, such as the combination of post-procedural pain, fever and perforation.
PD, pneumatic balloon dilatation.