Awake Craniotomy

No, the surgery itself is not felt as pain. The brain has no pain receptors, so it cannot feel pain when it is touched or operated on. The scalp and skull do have nerves, so they are numbed with local anesthetic before and during the procedure. Patients are also sedated for the parts that do not require them to be awake, and the team monitors comfort throughout.

Being awake lets the surgical team map and protect critical functions in real time. When a tumor sits near areas that control speech or movement, the surgeon can test those functions by having the patient talk, count, or move while operating. If a spot is tied to an essential ability, the team sees it immediately and avoids it. This can allow more complete tumor removal while helping protect function.

Most patients describe it as stranger to imagine than to experience. The scalp is numbed, so there is no pain. During the awake phase, the patient is asked to do simple tasks like naming pictures or moving a hand. They may feel tingling or notice a brief pause in their words when a spot is tested. The team talks with the patient and keeps them comfortable the whole time.

No. The brain itself has no pain receptors, so a person cannot feel their brain being touched, stimulated, or operated on during surgery. Sensations a patient does notice, such as tingling or a brief change in speech or movement, come from the brain signaling other parts of the body when a spot is tested, not from pain in the brain itself.

In the common asleep-awake-asleep approach, the patient is sedated or asleep at the start. When it is time to map, the neuroanesthesiologist lightens the sedation and wakes the patient gently for the mapping phase. After the key portion of surgery is done, sedation is deepened again so the patient is asleep or sedated for the closing.

It varies with the tumor and how much mapping is needed, but the full procedure often runs about four to eight hours. The awake portion is usually a part of that time, often under an hour, during which the patient performs the mapping tasks. The rest of the surgery is typically done under sedation or asleep.

Anxiety about being awake is one of the most common concerns, and it is taken seriously. The team explains the tasks ahead of time so nothing is a surprise, numbs the scalp, and keeps the patient sedated except during mapping. Severe anxiety or difficulty staying still can make awake craniotomy less suitable, which is part of what a treating physician evaluates before surgery.

People vary. Because of the sedation used during the asleep phases, many patients remember little of the procedure overall. During the awake phase, some patients recall doing the tasks and talking with the team. The experience is generally described as calmer than expected, and the team works to keep the patient comfortable throughout.

Awake craniotomy is a well-established technique used at major centers. The mapping it allows is meant to make tumor removal safer for essential functions like speech and movement. It is still brain surgery and carries real risks, including bleeding, infection, seizures, and changes in function. In published series, serious long-term complications occur in a small share of cases. Individual risk depends on the tumor and the patient.