Table 3. Patient clinical data.

Data regarding presentation, irrigating drainage settings, postoperative examination, discharge disposition, and follow-up examination for each patient. ARU = Acute rehabilitation unit; SNF = Skilled nursing facility; POD: Postoperative day

Patient Clinical Data
Age/Sex	Symptoms at presentation	Drain settings	Symptoms at 24h postop	Discharge disposition	Symptoms at follow-up
82 M	Right-sided weakness and hemineglect, mental deterioration	Drain at 0, 1.5cc/hr	Full strength, oriented x3	Home	Two weeks: Full strength, mild discoordination and difficulty speaking
78 M	Mild left upper extremity weakness (4+/5), incoordination	Drain at 0, 10cc/hr	Full strength, oriented x3	Home	10 days: L hand paresthesia, full strength. Five weeks: Subjective L hand weakness, on Keppra 500mg Three months: Normal exam, no complaints, continued Keppra One year: Normal exam, no complaints, stopped Keppra
83 M	Mild global weakness, mental deterioration, pupillary asymmetry	Drain at -5, 100cc/hr -> 40cc/hr (POD1)	Equal/reactive pupils. minimal residual weakness	Home	Two weeks: Complete resolution of preoperative neurologic deficits
78 M	Left-sided weakness with pronator drift	Drain at 0, 90cc/hr	Full strength, oriented x3	ARU	Two weeks: no complaints. Normal neurologic exam 3 months: Remains asymptomatic
89 M	Right upper extremity hypertonia, incoordination, mental deterioration	Drain at 0, 30cc/hr	Improved cognition, no formal motor examination	SNF	Five days: Returned to hospital for seizure, improved with medical management Three months: No focal weakness (global 4+/5) Nine months: full strength, no further seizures despite stopping Keppra four months prior
75 M	Mild left upper extremity weakness (4+/5) with pronator drift, incoordination	Drain at 0, 100cc/hr	Minimal residual weakness, no pronator drift	ARU	Two weeks: Complete resolution of preoperative neurologic deficits