Differentiating features of SUNCT and trigeminal neuralgia
| Feature | SUNCT | Trigeminal neuralgia |
|---|---|---|
| Sex ratio (male: female) | 2.1:1 | 1:2 |
| Site of pain | V1 | V2/3 |
| Severity of pain | Moderate to severe | Very severe |
| Duration (seconds) | 5–250 | <1 |
| Autonomic features | Prominent | Sparse or none |
| Refractory period | Absent | Present |
| Response to carbamazepine | Partial | Complete |