Neurosurgery 99:1092–1104, 2026
Among patients with idiopathic intracranial hypertension, the comparison between venous sinus stenting and ventricular shunting varied with obesity, visual symptoms at diagnosis, and the outcome examined. The clearest example came from patients with obesity and no recorded visual disturbance at diagnosis. After shunting, papilledema and pulsatile tinnitus were documented less often, yet headache and repeat intervention were more frequent.
Study and key findings
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Using TriNetX electronic health records, the investigators matched 1,000 adults treated with a stent to 1,000 treated with a ventricular shunt. Matching was performed separately within four groups defined by obesity and baseline visual disturbance. Outcomes were assessed over the following 24 months.
In the 440 matched pairs with obesity and no baseline visual disturbance, shunting was associated with 6 percentage points less recorded papilledema and 5 points less pulsatile tinnitus than stenting. Headache and repeat intervention were each 12 percentage points more frequent after shunting. Among patients with obesity who already had visual symptoms, visual deficits were recorded more often after shunting (absolute difference 11 percentage points, 95% CI 3–18). Among patients without obesity, the same 11-point difference was observed in those initially free of visual symptoms. In the smaller group with visual symptoms (69 pairs), the study detected no significant difference in the primary outcomes.
Interpretation and limitations
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A visual diagnosis in the record cannot quantify visual field loss or recovery. The database also lacked venous anatomy, pressure gradients and lumbar puncture opening pressures. These findings can influence treatment selection, so patients matched on recorded characteristics may still have differed in their suitability for stenting.
Clinical takeaway
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When both procedures are under consideration, discuss preservation of vision, headache relief and the likelihood of another intervention separately. The subgroup estimates can inform that discussion. Choosing a procedure for an individual patient still requires direct assessment of visual function and the anatomical and hemodynamic basis for stenting.