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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Spontaneous Intracranial Hypotension is a rare syndrome, characterized by orthostatic headaches, low CSF pressure and characteristic aspects on MRI. The authors describe a clinical case of Spontaneous Intracranial Hypotension, in which the MRI investigation revealed a low position of the cerebellar tonsils, a diffuse and symmetric dural enhancement and an engorgement of the cervical epidural venous plexus. The authors make a review of the physiopathology, clinical and radiological aspects related to this syndrome.
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PMID:[Spontaneous intracranial hypotension syndrome]. 1286 2

Spontaneous Intracranial Hypotension (SIH) is an uncommon headache syndrome. Patients classically present with orthostatic headache, tinnitus, and diplopia. The authors reported a 43 year-old man who presented with orthostatic headache, tinnitus, and hearing impairment for 3 months. Physical examination was unremarkable except for auditory impairment. The audiogram revealed minimal low-frequency neurosensori hearing loss suggesting a cochlear lesion. Computed tomography of the brain revealed bilateral thin chronic subdural hematomas. He underwent burr-hole surgery. Headache and auditory symptoms persisted and reevaluation of this syndrome was performed MRI of the brain showed diffuse smooth enhanced dura mater low lying position of midbrain, pons, medullar and cerebellar tonsil, as well as enlarged pituitary gland compatible with low CSF pressure syndrome. MRI of the whole spine could not demonstrate the site of CSF leakage. The patient was much improved after conservative treatments with hydration and bed rest. One year after treatment, he had no headache and only mild tinnitus was reported.
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PMID:Bilateral subdural hematomas and hearing disturbances caused by spontaneous intracranial hypotension. 1993 48

Spontaneous Intracranial Hypotension is a syndrome involving reduced intracranial pressure secondary to a dural tear which occurs mostly due to connective tissue disorders such as Marfans Syndrome, and Ehler Danlos Syndrome. Patients with dural ectasias leading to CSF leakage into the subdural or epidural space classically present with orthostatic headaches and cranial nerve deficits mostly seen in cranial nerves V-VIII. Diagnosis of SIH is confirmed with the aid of neuroimaging modalities of which Cranial MR imaging is most widely used. SIH can be treated conservatively or with epidural blood patches which are now widely being used to repair dural tears, and their effectiveness is being recognized. Recently epidural injection of fibrin glue has also been used which has been found to be effective in certain patients.
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PMID:Pathophysiology and management of spontaneous intracranial hypotension--a review. 2235 3