Condition • Movement disorder

Deep Brain Stimulation for Essential Tremor

VIM nucleus DBS. 60–90% tremor reduction in experienced hands. My technique and outcomes.

VIM nucleus target

Action tremor — not resting

DBS vs FUS comparison

60–90% Tremor amplitude reduction

VIM Ventral Intermediate Nucleus

Bilateral Both hands treatable (unlike FUS)

My Surgical Approach

Essential tremor is the most common movement disorder - yet one of the most undertreated.

I have watched patients pick up a pen on the operating table, hours after their electrode was placed, and write their name for the first time in years. Very few moments in surgery are as powerful as that.

The target for ET DBS is the Ventral Intermediate Nucleus (VIM) of the thalamus. By placing an electrode in the VIM and delivering precisely calibrated electrical stimulation, I disrupt the abnormal tremor circuit. The effect is often immediate.

When I Recommend DBS

✓

Disabling hand, head, or voice tremor (interferes with eating, writing, etc.)

✓

Failed or intolerant to propranolol and primidone

✓

Both hands affected — bilateral treatment needed

✗

Resting tremor as dominant feature (suggests Parkinson's)

DBS vs. Focused Ultrasound (FUS)

FUS advantages: no incision, no anaesthesia, same-day procedure.

DBS advantages: reversible and adjustable; bilateral treatment possible; 15+ years of data; programmable as disease evolves.

For bilateral tremor or younger age, DBS is almost always superior.

Realistic Outcomes

60-90% reduction in tremor severity.
Immediate visible results in the OR.
Maintained tremor control for 10+ years.
Restoration of writing and occupational function.

Questions

Essential Tremor FAQ

How long do DBS results last?

Long-term studies show maintained control in the majority of patients for 10+ years. The device can be reprogrammed if tremor control diminishes.

Can DBS help if I have been shaking for 30 years?

Yes. Duration of tremor does not significantly affect DBS outcomes - the neurological target is the same.

Is VIM DBS safe for elderly patients?

In patients with good general health, age alone is not a contraindication. Some of my most grateful patients have been in their late seventies and eighties.

What about head tremor and voice tremor?

Response is more variable. Some patients experience significant improvement; others do not. I discuss this honestly in pre-operative consultations.

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