Chronic subdural hematomas : a comparative study of three types of operative procedures.

Objective: Several surgical procedures have been reported for the treatment of chronic subdural hematoma (CSDH). We compared the results of treatments for CSDH obtained from one burr-hole craniostomy with closed system drainage with or without irrigation, two burr-hole craniostomy with closed system drainage with irrigation, and small craniotomy with irrigation and closed-system drainage.

Methods: Eighty-seven patients with CSDH underwent surgery at our institution from January 2004 to December 2008.