Barrow Neurological Institute Pain Scale
2 Occasional pain, no medications required
3A- No pain, continued medication
3B- persistent pain, controlled with medications
4 Some pain, not adequately controlled with medications
5 Severe pain or no pain relief
The Visual Analog Scale (VAS) and the Barrow Neurological Institute Pain Scale (BNI-PS) are 2 of the most frequently employed patient-reported outcome (PRO) tools used by clinicians to rate pain intensity for patients with trigeminal neuralgia (TN).