Comparison of burr hole irrigation and closed system drainage methods after burr hole irrigation in the treatment of chronic subdural hematoma [Kronik subdural hematom tedavisinde burr hole irrigasyon ile burr hole irrigasyon sonrasi{dotless} kapali{dotless} sistem drenaj yöntemlerinin karşi{dotless}laşti{dotless}ri{dotless}lmasi{dotless}]

Objective: comparison of evacuation of hematoma through burr hole irrigation (bhi) and closed system drainage (csd) after burr hole irrigation in the treatment of chronic subdural hematoma (csdh) in terms of relapse. materials and methods: 32 patients who were operated with csdh diagnosis between 2001 and 2008 were retrospectively evaluated with respect to clinical features,etiologic factors,surgical technique and recurrence. of the 5 recurrent cases in bhi group,2 (20%) received tap and 3 received excision of hematoma via craniotomy. no pathology requiring additional surgery was detected in the follow-up of the patients who underwent bhi-csd. conclusion: closed system drainage through burr hole irrigation in csdh cases is a simple and reliable method which reduces the risk for recurrence and reoperation and enables evacuation of anticoagulants such as plasminogen and thrombomodulin,products of impaired coagulation- anticoagulation balance.