Multiple subpial transection

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Multiple subpial transection (MST) is a type of neurosurgery used to treat epilepsy. It was first described by Theodore Rasmussen, a Canadian neurosurgeon, in the 1970s. MST is typically used when the area of the brain causing seizures is in a region that cannot be safely removed.

Procedure[edit | edit source]

The procedure involves making a series of shallow cuts (transections) in the brain tissue. These cuts interrupt the movement of seizure impulses but do not affect normal brain activity. This is because the cuts are made parallel to the direction of the brain's fibers, which allows normal brain activity to continue while preventing the spread of seizures.

Indications[edit | edit source]

MST is used when the area of the brain causing seizures is in a region that cannot be safely removed. This might be because the area is near important brain functions, such as language or motor skills. MST can also be used when seizures are caused by multiple areas of the brain.

Risks and complications[edit | edit source]

As with any surgery, there are risks associated with MST. These can include infection, bleeding, and reactions to anesthesia. There may also be changes in brain function after the surgery, although these are usually temporary.

Effectiveness[edit | edit source]

Studies have shown that MST can be effective in reducing seizures. However, it is not a cure for epilepsy and some people may still need to take medication after the surgery.

See also[edit | edit source]


Multiple subpial transection Resources

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