Background: Burr hole trepanation (BHT) is the most commonly used surgical method for the treatment of chronic subdural haematoma (cSDH).
Method: We give a brief overview on the indication for surgical treatment of cSDH, the surgical technique of BHT, and specific perioperative considerations. In particular, we emphasise on the technique of a subperiosteal drain placement.
Conclusion: BHT is a valid option to treat chronic subdural haematoma. Careful surgical technique and placement of a subperiosteal drain is required to minimise complications and improve outcome.
Keywords: Burr hole trepanation; Chronic subdural haematoma; Neurosurgery; Subperiosteal drainage.