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Background: Bilateral transverse sinus (TS) stenosis has been found in more than 90%of patients with idiopathic intracranial hypertension (I I H). Objective: To evaluate whether TS stenosis changed after normalization of CSF pressure in patients with I I H during medical treatment. Methods: Fourteen consecutive patients with I I H with bilateral TS stenosis on cerebral MR venography (MRV) during the medical treatment were studied. Patients were followed for over a 6-year period. During the follow-up, patients underwent repeated lumbar punctures (LPs ) and cerebral MRV. MRV was always performed before each LP. Results: TS stenosi s persisted in all the patients during the follow-up. In 9 of 14 (64%) patient s with IIH, CSF pressure normalized during medical treatment. Conclusions: Trans verse sinus (TS) stenoses, as revealed by MR venography, persist in patients wit h idiopathic intracranial hypertension after normalization of CSF pressure, sugg esting the lack of a direct relationship between the caliber of TS and CSF press ure.
Background: Bilateral transverse sinus (TS) stenosis has been found in more than 90% of patients with idiopathic intracranial hypertension (IIH). Objective: To evaluate whether TS stenosis changed after normalization of CSF pressure in patients with IIH during medical treatment. Methods: Fourteen consecutive patients with IIH with bilateral TS stenosis on cerebral MR venography (MRV) during the medical treatment were studied. During the follow-up, patients underwent repeated repeated lumbar punctures (LPs) and cerebral MRV was always performed before each LP. Results: TS stenosi s persisted in all the patients during the follow-up. In 9 of 14 (64%) patient s with IIH, CSF pressure normalized during medical treatment. sinus (TS) stenoses, as revealed by MR venography, persist in patients wit h idiopathic intracranial hypertension after normalization of CSF pressure, sugg esting the lack of a direct relationship between the caliber of TS and CSF press ure.