Table 3 Comparison of the Barrow Neurological Institute (BNI) pain intensity score according to the treatment group. BNI score: Class I, no trigeminal pain, no medication; Class II, occasional pain, not requiring medication; Class IIIa, no pain with continued medication; Class IIIb, pain controlled with medication; Class IV, some pain, not adequately controlled with medication; and Class V, severe pain, no pain relief
From: Radiosurgery for classical trigeminal neuralgia: impact of the shot size on clinical outcome
5-mm cone | 6-mm cone | All | |
|---|---|---|---|
Number of cases | 43 (%) | 52 (%) | 95 (%) |
BNI score | |||
I | 23 (53.5%) | 38 (73.0%) | 61 (64.2%) |
II | 7 (16.3%) | 6 (11.6%) | 13 (13.7%) |
IIIa | 7 (16.3%) | 6 (11.6%) | 13 (13.7%) |
IIIb | 1 (2.3%) | 2 (3.8%) | 3 (3.1%) |
IV | 0 (0%) | 0 (0%) | 0 (0%) |
V | 5 (11.6%) | 0 (0%) | 5 (5.3%) |
Treatment success (Class I-IIIa) | 37 (86.1%) | 50 (96.1%) | 87 (91.2%) |