Sudden severe worsening with fever, confusion or rigidity needs emergency care today. Never stop Parkinson's medication abruptly — it can precipitate a dangerous syndrome. Also seek urgent care after a fall with head injury.
Deep brain stimulation does not cure Parkinson's disease. What it does, in carefully selected patients, is restore the good hours that medication used to give and take away the fluctuations between them.
Selection matters more than surgical technique here. The patients who benefit most are quite specific, and setting the right expectations beforehand is what separates a transformative result from a disappointing one.
Parkinson's disease results from progressive loss of dopamine-producing cells in a small area of the brain, causing slowness of movement, stiffness, tremor at rest and later difficulties with balance. Levodopa replaces the missing dopamine and works well, often for years.
The difficulty comes later. As the disease advances, each dose lasts less time, and the periods between doses become disabling — the so-called off periods. Higher doses produce involuntary writhing movements called dyskinesia. Patients end up oscillating between being stiff and immobile and being over-medicated and restless.
Deep brain stimulation addresses exactly this problem. Electrodes placed in specific deep structures, connected to a generator under the collarbone, deliver continuous stimulation that smooths out the fluctuations. Patients typically gain several additional hours of good function each day and can often reduce medication.
Essential tremor is a different condition — an action tremor rather than a rest tremor, often familial, and not associated with the other features of Parkinson's. It also responds well to stimulation of a different target, as does dystonia, in which sustained muscle contractions produce abnormal postures.
This is the single best predictor of benefit, and it is why a formal levodopa challenge test is part of the assessment. Symptoms that respond well to medication generally respond well to deep brain stimulation. Symptoms that do not respond to medication — particularly balance problems, freezing that persists when medication is working, and speech difficulty — generally do not improve with surgery either, and may occasionally worsen. Tremor is the exception and often improves regardless. Anyone promising that DBS will improve your walking and speech when medication does not is setting you up for disappointment.
Assessment is as much about selection as diagnosis.
A short video filmed in the morning before your first dose, and another an hour after it, is remarkably informative — it shows the fluctuation that no letter conveys. Film yourself walking, turning, tapping fingers and writing. Send this alongside your medication list with exact doses and timings, and any neurologist's letters. These three together let a movement disorder specialist form a real view before you travel.
Medication optimisation comes first, and sometimes removes the need for anything else.
Adjusting levodopa dose and frequency, adding a dopamine agonist or an enzyme inhibitor to extend each dose, and treating non-motor symptoms. A considerable number of patients referred for surgery turn out to be inadequately medicated, and correcting that alone transforms their day.
Electrodes placed in the subthalamic nucleus or globus pallidus, connected to a generator under the collarbone. Programming over subsequent weeks tunes the stimulation to your symptoms — this part takes time and is why the trip is longer than the surgery suggests. Typical benefit is several more hours of good function daily and reduced medication.
Thalamic stimulation for essential tremor frequently produces dramatic improvement in a tremor that has resisted medication for years. Pallidal stimulation for dystonia can transform posture and pain, though benefit develops over months rather than immediately.
MR-guided focused ultrasound creates a small lesion without any incision, and radiofrequency lesioning achieves the same surgically. Both are usually performed on one side only, as bilateral lesioning carries risks to speech and swallowing. They avoid implanted hardware, which matters where follow-up and battery replacement would be difficult.
The best predictor of benefit. A formal on-off assessment should be part of any serious evaluation.
Significant dementia is a contraindication. Depression and impulse control disorders need managing beforehand.
A stimulator needs programming visits and eventual battery replacement. Where that will be difficult at home, focused ultrasound or lesioning may be the more sensible choice.
Before recommending surgery we will look at whether your medication is optimised. A substantial proportion of patients referred for DBS need better tablets rather than an operation.
Never stop Parkinson's medication abruptly, including when travelling. Bring more than you need, keep it in hand luggage, and carry a written list of doses and timings.
Photographs taken on your phone are fine. Reports in Arabic, Russian or Bengali are fine — we translate them ourselves.
No. It does not stop or slow the disease, which continues to progress. What it does, in well-selected patients, is smooth out the fluctuations between doses, reduce dyskinesia and typically add several hours of good function each day, often with less medication. That is a substantial gain, but it is symptom management rather than cure.
The strongest indicators are a clear response to levodopa, disabling fluctuations or dyskinesia despite optimised medication, and preserved cognition. Significant dementia is a contraindication. Age alone is not, though general fitness matters. A formal assessment including a levodopa challenge and neuropsychological testing establishes this properly.
Usually only insofar as those improve with medication. Balance problems and freezing that persist even when medication is working typically do not improve with stimulation, and speech occasionally worsens. This is the most common source of disappointment after DBS, and it is entirely avoidable by setting expectations honestly beforehand.
Frequently for part of it, so that electrode position can be tested by observing your symptoms and checking for side effects. Some centres perform the procedure asleep using imaging guidance. Both approaches are established, and the surgeon's experience matters more than which is used.
Programming sessions over the first weeks and months to tune the settings, then periodic reviews. The generator battery requires replacement every few years — rechargeable versions last considerably longer. Consider carefully whether these visits are practical from your home before choosing an implanted device over a lesioning procedure.
Yes. MR-guided focused ultrasound creates a precise lesion without any incision or implant, and radiofrequency lesioning achieves a similar result surgically. Both are usually performed on one side only. They suit patients with predominantly one-sided tremor and those for whom returning for programming and battery changes would be difficult.
Send a video of yourself before and after a dose of medication, plus your full drug list with timings. The video tells a movement disorder specialist more than any letter.
Your reports go directly to our medical team. We do not share your records with hospitals until you tell us to.
WhatsApp +91 83035 86344 · Phone +91 83035 86344 · Email tibhind@gmail.com
Coordinators available 9:00–20:00 IST. We speak Arabic, English, Russian and Bengali.