Dr. Peter J. Jannetta, a neurosurgeon who as a medical resident half a century ago developed an innovative procedure to relieve an especially devastating type of facial pain, died on Monday in Pittsburgh. He was 84.
The cause was complications from a brain injury suffered in a recent fall, said Susan Jannetta, his daughter.
Dr. Jannetta, a retired faculty member of the University of Pittsburgh School of Medicine, was considered one of the foremost neurosurgeons in the world.
A specialist in cranial nerve disorders, he was renowned in particular for having identified the minute culprit responsible for trigeminal neuralgia — a condition causing agonizing facial pain — and for developing a way to vanquish that culprit through microsurgery on the brain.
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