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Feb 1, 2017

Mapping the Brain Before Surgery for Epilepsy

Posted by in categories: biotech/medical, neuroscience

Great method btw.


Epilepsy is the fourth most common neurological disorder in the United States. Patients who have it are of all ages and it can seriously limit one’s ability to enjoy life. It’s a spectrum disorder which means the kinds of seizures people suffer and how they are managed will vary depending on the patient. Currently about 3 million people in the US are living with epilepsy and experts predict that at least 1 in 26 people will develop epilepsy at some point in their lifetime. While epilepsy is most often treated with anti-seizure medication, there are some patients who have not benefitted from medication. This form of the disorder is called drug-resistant epilepsy and can be very difficult to treat.

There are surgical options, but it’s crucial to have a good picture of the brain’s anatomy before any surgery is undertaken. Currently there are two methods for this. A recent article published by the American Academy of Neurology in the medical journal Neurology, looked at the two methods and revised the guidelines for each. The more common method of mapping the brain before surgery is the intracarotid amobarbital procedure, also known as the Wada test. In this procedure one side of the brain is anesthetized by injecting medication via the carotid artery. It’s invasive, can be uncomfortable and does carry some risk. The other way to get a look at the brain architecture is to use functional MRI scans.

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