• Asim Ishfaq.
• Department of Neurosurgery, Combined Military Hospital, Lahore.
• J Coll Physicians Surg Pak. 2017 Jul 1; 27 (7): 419-422.

ObjectiveTo compare the outcome after surgery for chronic subdural hematoma when the drain is placed in subdural space or subgaleal space.Study DesignQuasi experimental study.Place And Duration Of StudyCombined Military Hospital, Lahore, from July 2015 to June 2016.MethodologyPatients with chronic subdural hematoma of both genders and age, ranging between 55 to 85 years, were included. Patients on antiplatelet/anticoagulant therapy and acute on chronic subdural hematoma were excluded. Patients were divided in two equal groups each depending on whether drain was placed in subgaleal space (Group 1), and subdual space (Group 2), (n=31 patients each). Patients were positioned flat in bed after surgery. Clinical and radiological parameters and clinical outcome were compared between the two groups. Statistical test with significance of p <0.05 was utilized using Statistical Package of Social Sciences (SPSS version 17).ResultsMedian age of the 62 patients was 72 ±12.5 years. Headache was the most common symptom reported in both groups, (n=47,75.8%) patients. Median thickness of hematoma was 15 ±6.5 mm. Patients with subdural drain placement had more complications such as pneumocephalus 11 (35.4%) vs. 6 (19.3%), and intracerebral hemorrhage 4 (12.9%) vs. 2 (6.4%). Clinical outcome was good in both groups 27 (87%) in Group 1 and 28 (90%) in Group 2.ConclusionPatients of both groups had good outcome after surgery. Complications like pneumocephalus and intracerebral hemorrhage were more common in subdural location of drain, though not reaching statistically significance level to favor one technique over another.

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