Table 2 Barrow Neurological Institute (BNI) pain intensity scale score
From: Percutaneous balloon compression for primary trigeminal neuralgia in patients older than 80 years
| Score | Definition |
|---|---|
| I | No pain, no medication |
| II | Occasional pain, not requiring medication |
| III | Some pain, adequately controlled with medication |
| IV | Some pain, not adequately controlled with medication |
| V | Severe pain/no pain relief |