Reversible Cerebral Vasoconstriction Syndromes (RCVS)

Neurology 2006: 67:2164
• Prospectively recruited 56 patients with
recurrent TCH of unknown etiology
• MR-angiography in all; repeated if abnormal
• RCVS in 39% [MCA 100%, ACA, PCA ~50%, basilar 9%]
• Ischemic stroke in 7% (14% Pv, 3% Pn)
• Pv and Pn showed no difference in
demographics and headache characteristics
except for higher rate of Valsalva-like triggers
(exertion, defecation)