Effect of Different Intravenous Fluids on Post-operative Chronic Subdural Hematoma Size and Recurrence

Inclusion Criteria: * Diagnosis of chronic subdural hematoma (based on imaging) * Need for surgical intervention (assessed by attending neurosurgeon based on full neurological assessment) * The procedure of choice is burr hole drainage * Cessation of anti-coagulant therapy with accompanying normal lab values in appropriate time frames respective to the drug * Tolerance of supine position Exclusion Criteria: * \<60 years old * Presence of acute hemorrhage, stroke, or parenchymal damage * Neurological deficits not accountable to mass effect * Hyponatremia or inherent electrolyte imbalances * Pregnancy or non-consentable patients * Previous neurological surgery up to 1 year before being considered for the study * Rapid re-expansion of brain observed intraoperatively by attending neurosurgeon * Congestive heart failure or other medical conditions precluding normal postoperative administration of IV fluids * Blood glucose levels \> 135 mg/dL