Inclusion criteria
| 1 | Ten or more of the following data/quality criteria should be present: |
| Diagnostic criteria stated | |
| Mixed cases but can differentiate in analysis, for example tumour, multiple sclerosis, atypical | |
| Side/division | |
| Length of follow up range | |
| Length of follow up median/mean | |
| Withdrawals/drop outs accounted for | |
| Radiosurgical doses, isodoses, number of isocentres and target location. | |
| How was outcome/reported? (Explicit definition of outcome measures): | |
| Definition of recurrence/success | |
| Actuarial analysis/yearly outcome | |
| Mortality | |
| Report complications outside V area | |
| Report complications within V area | |
| Report of perioperative complications | |
| Definition of terms, for example sensory loss | |
| 2 | Dose administered, 70 Gy or more |
| 3 | Kaplan–Meier actuarial analysis |
| 4 | Not more than 20% of patients lost to follow up |
| 5 | Less than 10% of patients treated more than once with radiosurgery |
| 6 | Minimum 12 month median/mean follow up. |
| 7 | Minimum of 30 patients treated |
| 8 | Study dealing with primary trigeminal neuralgia |
| 9 | Report separately on rates of complete pain relief on or off drug treatment |