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Reversible cerebral vasoconstriction syndrome (RCVS, sometimes called Call-Fleming syndrome) is a disease characterized by a weeks-long course of thunderclap headaches, sometimes focal neurologic signs, and occasionally seizures. [1] Symptoms are thought to arise from transient abnormalities in the blood vessels of the brain. [1]
RCVS may refer to: Royal College of Veterinary Surgeons; Reversible cerebral vasoconstriction syndrome This page was last edited on 29 ...
High resolution MRI may show hyperenhancement of the blood vessel walls in primary CNS vasculitis and may help to distinguish the lesions form atherosclerotic plaques or reversible cerebral vasoconstriction syndrome which have similar morphology on angiography. MRI usually also shows multiple infarcts, enhancement of the leptomeninges (the ...
Vasospasm refers to a condition in which an arterial spasm leads to vasoconstriction. This can lead to tissue ischemia (insufficient blood flow) and tissue death . Along with physical resistance, vasospasm is a main cause of ischemia. Like physical resistance, vasospasms can occur due to atherosclerosis.
In many cases there is evidence of constriction of the blood vessels (if angiography is performed), suggesting a possible overlap with reversible cerebral vasoconstriction syndrome (RCVS). Diffusion MRI may be used to identify areas of cytotoxic edema caused by poor blood flow (ischemia) but it is not clear if this prognostically relevant.
It is now in the process of creating "evidence-based algorithms," that is algorithms created by experts and annotated with the evidence that leads to these algorithms. A schizophrenia algorithm has been created and one on Post Traumatic Stress Disorder was released in July 2005. A general anxiety disorder (GAD) algorithm was released in 2006 ...
Cerebral vasospasm is the prolonged, intense vasoconstriction of the larger conducting arteries in the subarachnoid space which is initially surrounded by a clot.Significant narrowing of the blood vessels in the brain develops gradually over the first few days after the aneurysmal rupture.
Posterior reversible encephalopathy syndrome (PRES) is a rare clinical disease characterized by cerebral edema. [12] The exact pathophysiology , or cause, of the syndrome is still debated but is hypothesized to be related to the disruption of the blood-brain barrier. [ 12 ]