Transcranial Color Doppler and Outcome Prediction in Reversible Cerebral Vasoconstriction Syndrome

Reversible cerebral vasoconstriction syndrome (RCVS) is a unifying term used to describe a group of poorly understood disorders characterized by a reversible segmental and multifocal vasoconstriction of cerebral arteries and severe headaches, with or without focal neurologic deficits or seizures, that resolve spontaneously in 1 to 3 months. For this study, investigators recruited 32 consecutive patients diagnosed with RCVS. The authors used transcranial color-coded Doppler sonography (TCCS) to determine mean flow velocities in the M1 segment of the middle cerebral artery (VMCA) and in the distal intracranial carotid artery, within 24 hours of presentation and repeatedly until sonographic abnormalities returned to normal or for up to 3 month…