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Nuances of Endovascular Treatment of Transverse/Sigmoid Sinus Stenosis With Stenting Venoplasty in a Patient With Pseudotumor Cerebri: 2-Dimensional Operative Video.
Operative Neurosurgery (Hagerstown, Md.) 2018 July 31
We present a case of a patient with pseudotumor cerebri (PC) and transverse/sigmoid junction sinus (TSJS) stenosis treated with stenting venoplasty. A 54-yr-old man with a history of hypertension, hyperlipidemia, and chronic obstructive pulmonary disease presented with subacute onset of progressive headaches, blurred vision, and papilledema. He was clinically diagnosed with PC. Left TSJS stenosis was suspected on magnetic resonance venography and confirmed with digital subtraction angiography and venography. During angiography, venous pressures were measured along the intracranial venous system revealing a significant drop compared with pressures obtained from the superior sagittal and sigmoid sinuses. For 7 d prior to venous sinus stenting, he was prescribed antiplatelet therapy with aspirin (350 mg/d) and clopidogrel (75 mg/d). Patient consent was obtained prior to performing the procedure; institutional board approval is not required for the report of a single case. Under conscious sedation and systemic heparinization, the patient underwent endovascular stenting of the left TSJS with an open-cell carotid stent (Precise 7 × 40 mm; Cordis, Milpitas, California). Successful left TSJS reconstruction transpired with no procedure-related complications. The patient was discharged home 1 d postprocedure. After 2 mo of dual antiplatelet therapy, clopidogrel was discontinued. At the 1-yr follow-up, he had resolution of papilledema and notably less intense headaches. Venous sinus stenting is an effective endovascular treatment for symptomatic patients with PC and sinus stenosis. Venous pressure measurement is imperative for patient selection. Adequate venous access with a 6-French guide catheter into the sigmoid sinus and an intermediate catheter into the transverse sinus is crucial to navigate a stent through the acute angles of the TSJS and jugular vein.
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