Introduction
A craniotomy is a major neurosurgical procedure in which a section of the skull, called a bone flap, is temporarily removed to access the brain. This surgery is performed to treat a variety of severe neurological conditions, including brain tumors, aneurysms, blood clots (hematomas), traumatic brain injuries, epilepsy, or severe nerve pain. By opening the skull, the neurosurgeon can directly visualize and operate on the affected area of the brain. Once the underlying issue is addressed, the bone flap is typically replaced and secured with small titanium plates and screws. Craniotomies are complex procedures that require immense precision and are crucial for saving lives or preventing permanent neurological damage.

Surgical Procedure
The procedure is usually performed under general anesthesia. The patient’s head is secured in a special device to prevent any movement. The surgeon makes an incision in the scalp, often behind the hairline to conceal the scar. A specialized drill is used to create small holes in the skull, and a medical saw connects these holes to carefully remove the bone flap. The dura mater, the tough outer membrane protecting the brain, is then opened. Using an operating microscope and specialized micro-instruments, the surgeon performs the necessary repair, such as removing a tumor or clipping an aneurysm. Throughout the surgery, advanced imaging and nerve monitoring may be used to protect healthy brain tissue. After the procedure, the dura mater is stitched closed, the bone flap is reattached, and the scalp is sutured or stapled.

Surgical Risks
A craniotomy carries significant risks due to the delicate nature of the brain. General risks include adverse reactions to anesthesia, bleeding, and blood clots.

General Complications
Common post-operative issues include:
– Headaches, which can be severe but are managed with medication.
– Swelling and bruising around the eyes and face.
– Fatigue and temporary confusion or difficulty concentrating.
– Nausea and vomiting.
– Scalp numbness or pain at the incision site.

Rare but Serious Complications
Serious complications can have lasting impacts:
– Brain swelling (cerebral edema) or bleeding within the brain, which may require further emergency surgery.
– Infection in the brain (meningitis), the skull bone, or the wound.
– Seizures, which can occur during or after recovery.
– Neurological deficits, such as weakness, paralysis, speech difficulties, or vision changes, depending on the area of the brain operated on.
– Cerebrospinal fluid (CSF) leak from the incision.

Pre-operative Preparation
– Extensive Neurological Evaluation: MRI and CT scans are used to map the brain precisely.
– Fasting: Complete fasting for 8 to 12 hours before surgery.
– Medication Management: Blood thinners must be stopped. Steroids or anti-seizure medications may be prescribed before the surgery to reduce swelling and prevent seizures.
– Hair Removal: A portion of the head may be shaved, though surgeons try to shave as little as possible.

Post-operative Care
Patients usually wake up in the neuro-intensive care unit (ICU) and are monitored closely for 24 to 48 hours. Frequent neurological checks (asking the patient to move limbs, follow commands, and checking pupil responses) are performed. The head of the bed is kept elevated to reduce brain swelling. The total hospital stay is typically 3 to 7 days, depending on the underlying condition and the patient’s recovery speed.

Wound Care
– Keep the scalp incision clean and dry. The surgical team will provide specific instructions on when you can wash your hair (usually after a few days with a mild baby shampoo).
– Do not scratch or pick at the incision or staples.
– Watch for signs of infection, such as increased redness, swelling, warmth, or drainage of fluid (especially clear fluid, which could be CSF).

Diet
– Start with a light diet and gradually return to normal foods as tolerated.
– Adequate hydration and a balanced diet are important for healing.

Post-discharge Notes
Recovery from a craniotomy is a long process, often taking several weeks to months.
– Rest frequently and avoid strenuous physical activity, heavy lifting, or straining.
– Do not drive until your neurosurgeon gives explicit permission, as reaction times and vision may be temporarily affected, and there is a risk of seizures.
– Take all prescribed medications, especially anti-seizure drugs, exactly as directed.
– Contact your doctor immediately if you experience worsening headaches, new weakness or numbness, seizures, confusion, fever, or fluid leaking from the wound.