How Successful Is the Gamma Knife Treatment?


Quick Answer

Gamma Knife treatment, or radiosurgery, kills, shrinks or stops the growth of brain tumors in almost 90 percent of the cases, according to Wake Forest Baptist Health. Positive effects are seen over a period of time, depending upon the type of condition, explains Mayo Clinic.

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Full Answer

Following Gamma Knife treatment, noncancerous brain tumors typically take 18 months to two years to shrink, states Mayo Clinic. However, in these cases, the primary purpose of Gamma Knife radiosurgery is to stop the development of new tumors. Cancerous tumors frequently decrease within a few months. When radiosurgery is used to correct malformed blood vessels, results are often not seen for two years. Pain relief for trigeminal neuralgia generally appears several months after treatment.

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