My understanding: is that lumbar puncture may sometimes be helpful for both diagnostic reasons as well as therapeutic in idiopathic intracranial hypertension a symptom of which may be pulsatile tinnitus. In some cases the relieving of pressure during the LP improves, at least transiently, the symptoms. I wouldn't think you would have to be having symptoms for it to work, but if no symptoms then, how will you know?
Answered 9/30/2015
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