Deep venous structures distortion in spontaneous intracranial hypotension as an explanation for altered level of consciousness.
Spontaneous intracranial hypotension (SIH) is a syndrome of low pressure headache associated with low CSF pressure. The condition is generally considered benign but extreme cases of SIH can lead to changes in the level of consciousness. We describe a case in which alteration in the level of consciousness was prolonged and severe, and could not be explained solely by the presence of subdural collections. MRI of the brain showed evidence of impaired venous flow secondary to brain sagging causing distortion of deep venous structures.
Department of Neurosurgery, Stanford, Palo Alto, California, USA.
Abdulrazag M
AM
Ajlan
Hosam
H
Al-Jehani
Carlos
C
Torres
Judith
J
Marcoux
D000328:Adult; D001921:Brain / Q000098:blood supply*; D002550:Cerebral Veins / Q000473:pathology* / Q000503:physiopathology; D002560:Cerebrovascular Circulation / Q000502:physiology*; D003244:Consciousness Disorders / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D003937:Diagnosis, Differential; D006801:Humans; D019585:Intracranial Hypotension / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D007427:Intracranial Pressure; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male
Complication; Intervention; MRI; Subdural; Technique