Table 2 Final diagnoses of patients with SH and TCH
From: A common cause of sudden and thunderclap headaches: reversible cerebral vasoconstriction syndrome
Diagnosis | Patient number (%) | |
|---|---|---|
SH, n = 31 | TCH, n = 24 | |
RCVS | 14 (45.2%) | 11 (45.8%) |
Primary headaches | 13 (41.9%) | 11 (45.8%) |
Multiple triggers | 6 (19.4%) | 5 (20.8%) |
Primary HSA | 4 (12.9%) | 3 (12.5%) |
Primary exertional headache | 2 (6.5%) | 2 (8.3%) |
Primary TCH | 1 (3.2%) | 1 (4.2%) |
Other secondary causes | 4 (12.9%) | 2 (8.3%) |
Chiari malformation | 1 (3.2%) | 1 (4.2%) |
Moyamoya syndrome | 2 (6.5%) | 1 (4.2%) |
Subarachnoid hemorrhage | 1 (3.2%) | 0 |