Epilepsy Surgery in Bangalore: Who Qualifies, What to Expect & Costs
Epilepsy Surgery in Bangalore: Who Qualifies, What to Expect & Costs
Approximately 30% of people with epilepsy continue to have seizures despite trying two or more anti-seizure medications. This is called drug-resistant epilepsy. For many of these patients, surgery offers the possibility of becoming seizure-free — a life-changing outcome. Bangalore, home to NIMHANS (India's premier neuroscience institution), is one of the best cities in India for epilepsy surgery evaluation and treatment.
What Is Epilepsy Surgery?
Epilepsy surgery refers to a range of procedures aimed at reducing or eliminating seizures in patients with drug-resistant epilepsy. The most common approach is resective surgery — removing the small area of brain tissue that is generating the seizures (the "seizure focus"). Other approaches include disconnection surgery, neuromodulation (VNS, DBS, RNS), and stereotactic radiosurgery.
Who Qualifies for Epilepsy Surgery?
The ideal candidate:
- Has tried and failed at least 2 appropriate anti-seizure medications at adequate doses
- Has seizures that significantly impact quality of life (driving, employment, independence)
- Has a seizure focus that can be identified and safely removed
- Does not have a progressive neurological disease
The evaluation process determines whether surgery is possible and safe — not every patient with drug-resistant epilepsy is a surgical candidate.
The Pre-Surgical Evaluation
The evaluation at NIMHANS and other Bangalore centres involves:
| Investigation | Purpose |
|---|---|
| Video-EEG monitoring (5–10 days inpatient) | Records seizures and localises the focus |
| MRI brain (epilepsy protocol, 3T) | Identifies structural abnormality |
| FDG-PET scan | Shows metabolic abnormality in the seizure focus |
| SPECT (ictal and interictal) | Blood flow changes during and between seizures |
| Neuropsychological testing | Maps cognitive function |
| fMRI (language and memory) | Identifies eloquent cortex to avoid during surgery |
| Wada test (sodium amobarbital) | Tests memory and language in each hemisphere separately |
| Intracranial EEG (SEEG or subdural grids) | Used when non-invasive evaluation is inconclusive |
This evaluation takes 2–4 weeks and culminates in a multidisciplinary epilepsy surgery conference where the team decides whether surgery is recommended.
Types of Epilepsy Surgery
| Surgery Type | Description | Best For |
|---|---|---|
| Temporal lobectomy | Removal of part of the temporal lobe | Temporal lobe epilepsy (most common) |
| Lesionectomy | Removal of a specific lesion (tumour, cavernoma) | Lesional epilepsy |
| Hemispherectomy | Disconnection of one hemisphere | Hemispheric epilepsy in children |
| Corpus callosotomy | Cutting the connection between hemispheres | Drop attacks (atonic seizures) |
| VNS (Vagus Nerve Stimulation) | Implanted device stimulates vagus nerve | Non-resectable epilepsy |
| RNS (Responsive Neurostimulation) | Detects and responds to seizure onset | Bilateral or eloquent cortex foci |
| SEEG-guided RF thermocoagulation | Minimally invasive ablation | Small, deep foci |
| Laser interstitial thermal therapy (LITT) | MRI-guided laser ablation | Mesial temporal, hypothalamic hamartoma |
Outcomes
Temporal lobectomy for mesial temporal sclerosis (the most common type of epilepsy surgery) achieves seizure freedom in 60–70% of patients at 2 years. Even patients who are not seizure-free typically have a significant reduction in seizure frequency and severity.
Cost in Bangalore (2026)
| Component | Cost Range (INR) |
|---|---|
| Pre-surgical evaluation (video-EEG, MRI, PET) | ₹80,000 – ₹2,00,000 |
| Temporal lobectomy / lesionectomy | ₹2,00,000 – ₹6,00,000 |
| Intracranial EEG (SEEG) | ₹3,00,000 – ₹6,00,000 |
| VNS implantation | ₹4,00,000 – ₹7,00,000 |
| Total (evaluation + surgery) | ₹3,00,000 – ₹10,00,000 |
NIMHANS offers significantly subsidised rates. Most insurance policies cover epilepsy surgery.
Frequently Asked Questions
Q: How do I know if my epilepsy is drug-resistant? If you have had adequate trials of 2 or more anti-seizure medications (at therapeutic doses, for sufficient duration) and continue to have seizures, you meet the definition of drug-resistant epilepsy. Discuss referral to an epilepsy surgery centre with your neurologist.
Q: Is epilepsy surgery safe? At experienced centres, the risk of serious neurological complications is 1–3%. The risk of memory impairment after temporal lobectomy is real and is assessed carefully during the pre-surgical evaluation.
Q: How long is the hospital stay for epilepsy surgery? The pre-surgical evaluation requires 1–2 weeks of inpatient video-EEG monitoring. The surgery itself requires 5–7 days of hospitalisation.
Q: Can children have epilepsy surgery? Yes. Epilepsy surgery is particularly effective in children, and early surgery (before the developing brain adapts to seizures) often gives better outcomes.
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Medical Disclaimer
This article is for general information only and does not constitute medical advice. Consult a qualified epilepsy neurologist for personalised recommendations.
Sources
- Wiebe S et al. "A Randomized, Controlled Trial of Surgery for Temporal-Lobe Epilepsy." NEJM. 2001.
- NIMHANS Epilepsy Programme. nimhans.ac.in.
- International League Against Epilepsy. "Surgical Therapy." ilae.org.
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Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis, treatment, and medical decisions.
