The Use of Endoscopic-assisted Burr-hole Craniostomy for Septated Chronic Subdural Haematoma: A Retrospective Cohort Comparison Study.

•This is, to our knowledge, the first and the largest series reported to study the surgical treatment (EBHC and OBHC) of SCDH. Although there was an abundance of literatures discussing the best technique for CSH, few studies have been conducted on SCSH.•We assessed and compared the baseline characteristics, surgical condition, the operative time, the placement time of drainage tube and the length of hospital stay for neurosurgery. All patients were followed up according to departmental protocol with progress CT, MRS, GCS, and postoperative morbidity and mortality at on first postoperative day, at discharge, 30 days and 6 months. All of this makes our results more reliable.•We finally draw a conclusion that EBHC is a safe and effective surgical technique for treatment of SCSH. It significantly surpasses the results obtained in OBHC in lowering recurrence rate, morbidity rate, placement time of drainage tube, and length of hospital stay for neurosurgery.