title: Primary intracranial hypotension: the syndrome of spontaneous low cerebospinal fluid pressure with traction headache.
abstract: A case of primary Intracranial Hypotension (PIH) is described. This syndrome consists of spontaneous lowering of CSF pressure with traction headache. It is a benign disorder and is self-limited. The cause is unknown, but local choroid plexus vasospasm, possibly due to a hypothalamic disturbance, has been suggested, as has leakage of CSF through spontaneous arachnoid tears. Transient symptomatic relief was achieved with 5% CO2 inhalation, apparently due to increase in cerebral blood flow.
mesh_terms: D000328:Adult; D002245:Carbon Dioxide / Q000627:therapeutic use; D002560:Cerebrovascular Circulation; D005260:Female; D006261:Headache / Q000134:cerebrospinal fluid / Q000209:etiology* / Q000628:therapy; D006801:Humans; D007427:Intracranial Pressure; D011187:Posture; D013577:Syndrome
chemical_list: D002245:Carbon Dioxide