idiopathic intracranial hypertension (IIH) is an increase in intracranial pressure (ICP) in the absence of an identifiable cause. The disease most often affects obese middle-aged women and manifests itself mainly in headaches and visual impairment.
Many pathophysiological theories have been proposed, however, the cause is still not fully elucidated. The term "benign" intracranial hypertension is currently being dropped, as untreated individuals may result in complete loss of vision.
The diagnosis is made on the basis of modified Dandy or Friedman criteria. The treatment aims to reduce ICP, relieve pain and save eyesight.
Invasive therapy is recommended in patients with an inadequate response to carbonic anhydrase inhibitors and includes cerebrospinal fluid diversion techniques, optic nerve fenestration, bariatric procedures, and dental sinus stenting. Dental sinus stenting has come to the fore in recent years, based on the large number of patients with IIH who have been associated with associated non-thrombotic venous canal stenosis.