Journal of NeurotraumaFrontal Burr-Hole Compared with Parietal Burr-Hole in the Management of Chronic Subdural Hematoma: A Single-Center, Randomized Controlled, Noninferiority Trial

Frontal burr-hole drainage proves noninferior to parietal placement for chronic subdural hematoma in a randomized controlled trial of 135 patients, with recurrence rates of 1.5% vs. 4.4% at six months. The frontal approach also produced significantly less postoperative pneumocephalus, a key driver of hematoma recurrence in aging patients.

Clinical Considerations

• Frontal burr-hole reduced postoperative pneumocephalus by 9.1 mL versus parietal, directly lowering the conditions that promote hematoma recurrence.
• Recurrence rates were low overall (3% total) across both groups, likely reflecting the addition of postoperative atorvastatin in all patients.
• Functional outcomes and six-month mortality showed no significant difference between approaches, supporting equivalent safety profiles.
• Bilateral cases favored the frontal approach by 53 fewer operative minutes, with no head repositioning required.

Practice Applications

• Discuss frontal burr-hole as a clinically supported option when coordinating care with neurosurgical colleagues.
• Monitor postoperative pneumocephalus volume on CT as a recurrence risk indicator in CSDH patients.
• Counsel elderly patients that atorvastatin adjunct therapy may lower recurrence risk after drainage.
• Document baseline neurological status using mRS to track functional recovery at one, three, and six months.

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