ABSTRACT
Background: Chronic subdural hematoma (CSDH) is one of the common problems seen in neurosurgical practice, especially in the elderly. Chronic subdural hematoma is a pseudo-encapsulated collection of old blood between the duramater and subarachnoid caused by tear of bridging veins. Materials and methods: Total of 186 patients have underwent burr hole evacuation for subdural hematoma in the study period according to the medical records. Of which 93 had a subgleal drain and rest 93without the drain. Results: The mean GCS at admission was 14 (+/- 1). Out of total 186 patients, 164 (88%) patients had unilateral CSDH and 22(12%) had bilateral CSDH. Among 164 patients with unilateral CSDH 82 (50%) and out of 22 with bilateral CSDH 11 (50%), subgaleal vacuum drain was placed. In rest of 82 (50%) patients with unilateral and 11 (50%) bilateral CSDH, drain was not used. Conclusions: Chronic sub dural hematoma is a common presentation to the neurosurgeon. The present retrospective, comparative study of evacuation of chronic SDH with subgaleal suction drain, and without drain were compared and found to be an effective and safe method in reducing recurrence.