Decompressive Craniectomy – Surgical decompression for elevated intracranial pressure
Patient Education

Decompressive Craniectomy

A comprehensive, medically accurate guide explaining when decompressive craniectomy is indicated, how the procedure is performed, and what patients and families can expect during recovery.

PURPOSE

Reduce life-threatening intracranial pressure

ANESTHESIA

General anesthesia

BONE FLAP

Temporarily removed and preserved

NEXT STEP

Delayed cranioplasty in selected cases

What is a Decompressive Craniectomy?

Decompressive craniectomy is a neurosurgical procedure in which a portion of the skull is temporarily removed to allow the brain to expand safely when swelling becomes life-threatening.

Unlike a standard craniotomy, where the bone flap is replaced at the end of surgery, a decompressive craniectomy intentionally leaves the bone removed to prevent secondary brain injury caused by elevated intracranial pressure.

Why is this procedure performed?

Decompressive craniectomy is indicated when elevated intracranial pressure threatens brain perfusion and survival.

Common indications

  • Severe traumatic brain injury with swelling
  • Large ischemic stroke with malignant edema
  • Intracerebral hemorrhage with mass effect
  • Refractory intracranial hypertension

Goals of surgery

  • Prevent brain herniation
  • Restore cerebral perfusion
  • Limit secondary neurological injury
  • Preserve life and neurological potential

Preoperative preparation

In emergency settings, preparation is rapid and focused on stabilizing the patient and preventing secondary injury.

1

Neurological assessment

Evaluation of consciousness, pupillary response, and neurological deficits.

2

Imaging

CT or MRI to define extent of swelling, hemorrhage, or mass effect.

3

Stabilization

Airway protection, hemodynamic stabilization, and intracranial pressure management.

4

Family counseling

Discussion of goals, risks, and expected outcomes with patient representatives.

Recovery and rehabilitation

Recovery depends on the underlying cause, neurological injury, and overall health of the patient.

Early phase

  • Intensive care monitoring
  • Control of intracranial pressure
  • Prevention of infection and complications

Rehabilitation phase

  • Physical, occupational, and speech therapy as indicated
  • Gradual neurological recovery and reassessment
  • Planning for delayed cranioplasty if needed

Risks and potential complications

Although life-saving, decompressive craniectomy carries inherent risks that are carefully weighed before surgery.

  • Infection or wound complications
  • Bleeding or hematoma formation
  • Seizures
  • Neurological deficits
  • Need for additional surgeries
  • Cosmetic skull deformity until cranioplasty

When to seek urgent medical care

Contact your care team or emergency services immediately if any of the following occur:

  • Sudden neurological deterioration
  • Severe headache or confusion
  • New weakness, speech disturbance, or seizures
  • Signs of infection or wound complications

Speak with a specialized neurosurgical team

Our team offers expert evaluation and personalized treatment planning for patients with complex cranial conditions.

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