Percutaneous subdural tapping for the treatment of chronic subdural haematoma in adults.

Chronic subdural haematoma in adults has been treated by percutaneous subdural tapping using a subdural needle. In order to prevent recurrence, the procedure including replacement of the haematoma with oxygen, irrigation using relatively small amounts of saline, and additional drainage for one hour proved to be simple and reliable. The detailed technique is illustrated, and sequential computed tomography scans in six patients treated with this procedure are presented.