• Ruoyu Liu, Qi Liu, Fuyue Ye, Qijun Pang, Hao Tang, Kefan Yi, Kai Zhao, and Guochen Sun.
• Department of Neurosurgery, First Medical Center, PLA General Hospital, Beijing, China.
• World Neurosurg. 2023 Apr 1; 172: e194e200e194-e200.

ObjectiveThis study aimed to investigate whether a simple endoscopic method was effective for the evacuation of traumatic subacute subdural hematomas.MethodsA total of 51 patients with subacute subdural hematomas requiring surgery were enrolled in this study. An endoscopic hematoma evacuation was performed through a small bone window for 22 patients. Hematoma evacuation by open surgery was performed for 29 patients. The postoperative Glasgow Coma Scale scores improvement, surgery times, displacement of midline measurements, and intraoperative blood loss were recorded and analyzed for each patient.ResultsThe average time from the initial incision to suture completion was 38.41 ± 6.97 minutes for the endoscopic surgery group and 74.66 ± 9.54 minutes for the open-surgery group (P < 0.01). The average total blood loss was 41.36 ± 10.82 ml for the endoscopic group and 250.00 ± 58.25 ml for the open-surgery group (P < 0.01). No postoperative bleeding occurred in either group. The midline displacement measurement showed significant improvement on the day after surgery, with 5.21 ± 1.98 mm in the study group versus 6.75 ± 1.37 mm in the control group (P < 0.01). At the 1-month follow-up appointment, the midline measurement was normal in both groups. Computed tomography scans revealed almost no residual hematomas, representing an average evacuation rate of 100% in both groups. The average Glasgow Coma Scale scores improvement on the day after surgery were 1.77 ± 1.93 in the endoscopic surgery group and 1.66 ± 0.77 in the open-surgery group (P = 0.766).ConclusionEndoscopic subacute subdural hematoma removal through a small bone window achieved satisfactory hematoma removal using a minimally invasive method when compared with an open-surgery method.Copyright © 2022. Published by Elsevier Inc.

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