Burr hole drainage and craniotomy for hematoma evacuation are critical neurosurgical procedures used to remove dangerous blood collections from in and around the brain. These procedures account for over 7% of emergency cranial neurosurgical cases and can be life-saving.
Types of Intracranial Hematomas
Subdural Hematoma (SDH)
Blood collecting between the brain surface and its protective covering (dura mater):
- Acute SDH: Develops rapidly after significant head trauma; surgical emergency
- Chronic SDH: Develops slowly over weeks, common in elderly patients and those on blood thinners
- Subacute SDH: Intermediate presentation between acute and chronic
Epidural Hematoma
Blood collecting between the skull and dura, typically from a torn middle meningeal artery after skull fracture. Classic "lucid interval" followed by rapid deterioration requires immediate surgery.
Intracerebral Hemorrhage (ICH)
Bleeding within the brain substance itself, often caused by:
- Hypertension (most common cause)
- Ruptured aneurysm or AVM
- Hemorrhagic stroke
- Coagulopathy / blood thinner use
Surgical Approaches
Burr Hole Drainage
- Best for: Chronic subdural hematomas with liquid blood collection
- Procedure: One or two small holes drilled in the skull; hematoma drained via gravity and irrigation
- Duration: 30-60 minutes
- Advantage: Minimally invasive, can be performed under local anesthesia in some cases
Craniotomy for Evacuation
- Best for: Acute hematomas, solid clots, epidural hematomas, large ICH
- Procedure: Bone flap removed to directly visualize and evacuate the blood clot
- Duration: 1-3 hours depending on complexity
- Advantage: Complete evacuation, ability to address bleeding source
Decompressive Craniectomy
- Best for: Massive brain swelling after large hematoma or stroke
- Procedure: Bone flap removed and left off temporarily to allow brain to swell without herniation
- Duration: 2-4 hours
- Follow-up: Cranioplasty (bone flap replacement) performed weeks to months later
When Emergency Surgery Is Needed
Urgent surgical evacuation is typically required when:
- Hematoma thickness exceeds 10mm on CT
- Midline shift greater than 5mm
- Rapidly declining neurological status (GCS drop)
- Signs of uncal herniation (fixed dilated pupil)
Outcomes
- Chronic SDH burr hole drainage: Over 85% success rate with single procedure
- Acute SDH/epidural hematoma: Outcomes depend on speed of intervention — the "golden hour" is critical
- ICH evacuation: Ongoing research supports surgery for selected cases, particularly cerebellar hemorrhage
Nova Brain and Spine of GA provides expert emergent and urgent hematoma evaluation and surgical management for patients throughout Southern Georgia.
Key Benefits
- Life-saving intervention for brain hemorrhage
- Burr hole technique minimizes surgical trauma
- Rapid neurological improvement in most cases
- Over 85% success rate for chronic subdural drainage
- Advanced imaging for precise surgical planning
Recovery Time
3-14 days hospital stay depending on severity; weeks to months for full recovery
