Table 2.
List of detected point mutations and phenotypical features
| Patients | Mutation | Present age (yrs) | Age of onset (years) | Migraine/headache Features | Frequency | Duration (h) | Cerebellar sign and symptoms | Other clinical features |
|---|---|---|---|---|---|---|---|---|
| 57/14 | E1015K | 53 | 31 | Hemiplegic migraine | na | variable | no cerebellar | no |
| 263/12 | I1512T | 63 | 28 | Familiar Hemiplegic migraine | 1–2/week | variable | no cerebellar | no |
| 203/08 | I1512T | 46 | 18 | Familiar Hemiplegic migraine | 1–2/week | variable | no cerebellar | no |
| 209/13 | R2157G | 39 | 21 | Familiar Hemiplegic migraine | na | variable | no cerebellar | no |