A 28-year-old male presents to the emergency department 4 hours after a fall from a 15-foot scaffold. He was initially unconscious for 20 minutes, then regained consciousness and appeared well for 2 hours. He now complains of severe headache and is becoming increasingly drowsy. On examination, his right pupil is dilated and sluggish. CT head shows a lens-shaped hyperdensity over the right temporal region with midline shift. Which of the following is the most appropriate next step in management?

Explanation

## Clinical Presentation and Diagnosis This patient presents with the classic **"talk and die" syndrome** — a lucid interval followed by rapid neurological deterioration. The clinical triad of dilated ipsilateral pupil, headache, and altered consciousness, combined with a lens-shaped (biconvex) hyperdensity on CT, is pathognomonic for **acute epidural hematoma**. **Key Point:** Epidural hematomas are arterial bleeds (typically from the middle meningeal artery) between the dura and inner table of the skull. They are neurosurgical emergencies. ## Why This Patient Needs Urgent Craniotomy The presence of: - **Significant midline shift** (indicates mass effect and increased intracranial pressure) - **Dilated pupil** (uncal herniation is imminent) - **Rapid deterioration** (arterial bleeding continues) - **Volume > 30 mL or thickness > 15 mm** (implied by midline shift) ...all mandate **immediate surgical evacuation via craniotomy**, not burr holes alone. While burr holes are rapid decompression tools in resource-limited settings or when transfer is impossible, this patient has clear imaging and time allows definitive craniotomy. ## Management Algorithm ```mermaid flowchart TD A[Acute epidural hematoma on CT]:::outcome --> B{Midline shift present?}:::decision B -->|Yes| C{Volume > 30 mL or thickness > 15 mm?}:::decision B -->|No| D[Observe if GCS ≥ 14, volume < 30 mL]:::action C -->|Yes| E[Urgent craniotomy]:::urgent C -->|No| F[Consider burr holes if deteriorating]:::action E --> G[Evacuation + hemostasis]:::action G --> H[Good outcome if no delay]:::outcome ``` **High-Yield:** Epidural hematomas with midline shift require **craniotomy within 30 minutes** for best neurological outcome. Burr holes are a temporizing measure, not definitive treatment for large hematomas. ## Why Other Options Are Incorrect **Option 0 (Burr holes):** While burr holes are appropriate for rapid decompression in remote settings or when the patient is in profound coma with no imaging, this patient has clear CT imaging, midline shift, and access to an OR. Burr holes alone will not achieve hemostasis of the bleeding artery and will not adequately evacuate a large hematoma. This delays definitive care. **Option 2 (Conservative measures):** Head elevation and hyperventilation are temporizing measures for raised ICP but do NOT address the underlying bleeding. With ongoing arterial hemorrhage and signs of herniation (dilated pupil), these measures alone will fail and the patient will die. Transfer to OR must be **concurrent with**, not instead of, resuscitation. **Option 3 (Serial CT scans):** This patient is actively deteriorating with signs of herniation. Serial imaging wastes critical time. The diagnosis is certain, the indication for surgery is absolute, and further delay increases mortality and morbidity. ## Clinical Pearl The **lucid interval** is the hallmark of epidural hematoma and reflects the time it takes for arterial bleeding to accumulate enough volume to cause mass effect. Once herniation signs appear (dilated pupil, declining GCS), surgical evacuation is the only life-saving intervention. **Mnemonic: EPIDURAL** — **E**mergency surgery, **P**upil dilated, **I**ncreasing ICP, **D**ura intact (blood outside), **U**rgent craniotomy, **R**apid deterioration, **A**rterial bleed, **L**ucid interval