Gamma Knife radiosurgery doesn't involve surgical incisions, so it's generally less risky than traditional neurosurgery. In traditional neurosurgery, you may have risks of complications with anesthesia, bleeding and infection.

Early complications or side effects are usually temporary. They may include:

  • Fatigue. Tiredness and fatigue may occur for the first few weeks after Gamma Knife radiosurgery.
  • Swelling. Swelling in the brain at or near the treatment site can cause symptoms such as headache, nausea and vomiting. Your doctor may prescribe anti-inflammatory medications (corticosteroid medications) to prevent such problems or to treat symptoms if they appear.
  • Scalp and hair problems. Your scalp may be red, irritated or sensitive at sites where a device is attached to your head during the treatment. Some people temporarily lose a small amount of hair.

Rarely, people may experience late side effects, such as other brain or neurological problems, months after Gamma Knife radiosurgery.

May. 23, 2013