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.
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.
Authors: A C Rohr; C Riedel; M-C Fruehauf; A van Baalen; T Bartsch; J Hedderich; K Alfke; L Doerner; O Jansen Journal: AJNR Am J Neuroradiol Date: 2011-04-21 Impact factor: 3.825
Authors: R Crosa; O Marabotto; G Meehroff; C Legnani; J Boschi; A Negrotto; K G Terbrugge; P Lasjaunias Journal: Interv Neuroradiol Date: 2007-09-13 Impact factor: 1.610
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