Table 4 Duration, location, characteristic, number of occurrence of the headache, and past-history of headache in the 25 patients reported with THARCV syndrome
From: Thunderclap headache attributed to reversible cerebral vasoconstriction: view and review
| Â | n | % |
|---|---|---|
Durationa | ||
 <24 h | 10 | 40 |
 24 h–3 days | 5 | 20 |
 4 days–7 days | 3 | 12 |
 >7 days | 7 | 28 |
Location | ||
 Generalized | 8 | 32 |
 Unilateral | 3 | 12 |
 Frontal | 5 | 20 |
 Occipital | 4 | 16 |
 Fronto-temporal | 1 | 4 |
 Temporal | 1 | 4 |
 Vertex | 1 | 4 |
Characteristic | ||
 Abrupt onset | 25 | 100 |
 Severe intensity | 25 | 100 |
 Throbbing, pulsatile, or pounding | 17 | 68 |
 Nausea | 11 | 44 |
 Vomiting | 10 | 40 |
 Photophobia | 6 | 24 |
 Explosive | 3 | 12 |
 Blurred vision | 2 | 8 |
 Dull ache | 1 | 4 |
 Excruciating | 1 | 4 |
 Crushing | 1 | 4 |
 Sense of spinning | 1 | 4 |
 Losing consciousness | 1 | 4 |
Number of recurrences | ||
 None | 4 | 16 |
 1 | 15 | 60 |
 2 | 1 | 4 |
 3 | 1 | 4 |
 4 | 1 | 4 |
 7 | 1 | 4 |
 >7 | 2 | 8 |
Past history of headache | 15/25 | 60 |
 Migraine | 13 | 52 |
  With aura | 4 | 16 |
  Without aura | 3 | 12 |
  Unclassified | 6 | 24 |
 Tension-type headache | 1 | 4 |
 Associated with CCD | 1 | 4 |
 Associated with pregnancy | 1 | 4 |