Manometry combined with cervical puncture in idiopathic intracranial hypertension

Neurology. 2002 Jan 8;58(1):26-30. doi: 10.1212/wnl.58.1.26.


Objective: To determine by cerebral venography and manometry in patients with idiopathic intracranial hypertension the cause of the previously demonstrated venous hypertension in the superior sagittal and proximal transverse sinuses.

Methods: Cerebral venous sinus pressure was measured before and immediately after C1-2 puncture with removal of 20 to 25 mL of CSF.

Results: Lowering the intracranial pressure by lateral C1-2 puncture during manometry has shown that the venous hypertension resolves immediately.

Conclusion: These studies indicate that the venous hypertension is due to compression of the transverse sinuses by raised intracranial pressure and not due to a primary obstructive process in the cerebral venous sinuses.

MeSH terms

  • Brain / physiopathology*
  • Humans
  • Manometry*
  • Pseudotumor Cerebri / cerebrospinal fluid
  • Pseudotumor Cerebri / etiology*
  • Pseudotumor Cerebri / physiopathology*
  • Spinal Puncture*