trepanning

1. Trepanning - **Trepanning**, also known as **trephination**, **trephining** or making a **burr hole**, is a medical intervention in which a hole is [|drilled] or scraped into the [|human skull], exposing the //[|dura mater]// in order to treat health problems related to intracranial diseases

2. "Trepanning was accomplished successfully. He was bled, and many other of the ordinary means of relief were adopted."

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