When a heartbeat-synced ringing in the ear is caused by venous sinus narrowing, stenting restores normal blood flow and resolves the sound directly.
Pulsatile tinnitus is a rhythmic sound the patient hears in sync with their own heartbeat — distinct from the more familiar constant ringing or buzzing of ordinary tinnitus. It can range from a mild nuisance to something severe enough to disrupt sleep and concentration. Because it's rhythmic and heartbeat-linked, pulsatile tinnitus is almost always a sign of a genuine change in blood flow near the ear, rather than a purely neurological symptom — which is exactly why it responds to vascular treatment when the right cause is identified.
Treated directly with stenting, widening the narrowed segment.
Treated with embolization instead — the opposite approach.
With catheter angiography, before any procedure is planned.
MRI or CT, then catheter angiography confirms the exact cause.
A small puncture in the groin under sedation.
Balloon angioplasty, then a stent, restores normal blood flow.
Most patients go home within a day or two.
Pulsatile tinnitus has a genuine differential, and getting the cause right determines the treatment:
Venous sinus stenosis — narrowing of the brain's venous drainage channels alters blood flow patterns near the ear
Idiopathic intracranial hypertension — raised brain pressure, often together with venous sinus narrowing
Dural arteriovenous fistula — an abnormal connection that can develop after a vein clot
Arteriovenous malformations (AVMs) — abnormal artery-to-vein connections disrupting normal flow
Carotid artery stenosis — narrowing that creates turbulent, audible blood flow
Vascular tumours — such as glomus tumours, which increase blood flow in the ear region
Atherosclerosis — plaque build-up altering flow patterns
This page focuses on venous sinus stenosis specifically, since that's what stenting treats directly. Where a dural fistula, AVM, or tumour is the cause, embolization — not stenting — is the appropriate treatment instead.
A hearing test alone can't identify a vascular cause. Diagnosis starts with MRI or CT imaging, but the definitive step is catheter angiography — a contrast dye study of the blood vessels that shows exactly which vessel or connection is producing the abnormal flow. This is what distinguishes venous sinus stenosis from the other causes on the list above, and confirms whether stenting is actually the right treatment before proceeding.
When venous sinus stenosis is confirmed as the cause, a catheter is guided to the narrowed segment, typically via the femoral vein, and a stent is deployed to hold it open. Restoring more normal blood flow through the sinus reduces the turbulence responsible for the audible sound. In published series, roughly half of patients treated with venous sinus stenting report improvement in their tinnitus, alongside improvements in other symptoms like headache when IIH is also present. Balloon angioplasty is often used first to widen the segment before the stent is placed.
Two different endovascular treatments come up in pulsatile tinnitus, and confusing them leads to the wrong expectations. Stenting widens a narrowed vessel to restore flow — this is what's used for venous sinus stenosis and, in some patients, carotid artery stenosis. Embolization does the opposite: it deliberately closes off an abnormal vessel or connection, and is the correct treatment for a dural arteriovenous fistula, an AVM, or a vascular tumour. A patient with a dural fistula who receives a stent, or a patient with venous sinus stenosis who receives embolization, wouldn't see their tinnitus improve — because the procedure has to match the actual mechanism causing the sound. This is precisely why angiographic diagnosis has to come before treatment is chosen, not after.
Stenting is done under sedation, through a small puncture in the groin — no incision near the ear or head. Most patients go home within a day or two. Because the underlying cause and severity vary so much between patients, outcomes are individualised: stenting is highly effective for tinnitus caused specifically by venous sinus stenosis, but a different cause on the differential list above would need a different treatment entirely — which is exactly why accurate angiographic diagnosis comes before any procedure is planned.
It's rhythmic and synced to the heartbeat, which almost always points to an actual change in blood flow near the ear, rather than a purely neurological symptom — this is why it's investigated with vascular imaging rather than treated as routine tinnitus.
No — only when venous sinus stenosis is the confirmed cause. Other causes like dural arteriovenous fistula, AVMs, or vascular tumours need embolization instead, which is why angiographic diagnosis comes first.
A hearing test alone can't identify it. MRI or CT imaging is the first step, followed by catheter angiography, which shows exactly which vessel or abnormal connection is producing the sound.
In published series, roughly half of patients treated with venous sinus stenting for a confirmed stenosis report improvement in their tinnitus.
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