Introduction
CSDH
RECURRENCE, CHRONIC SUBDURAL HEMATOMA
Chronic subdural hematoma (CSDH) is a common neurosurgical condition that mainly affects people aged over 70–75 years [Surgical techniques for CSDH vary from country to country, but evidence supports the beneficial effect of postoperative subdural drainage on recurrence and mortality [We believe that current practice in most treatment centers is drain removal after a specific postoperative period (e.g. 24 hours or 48 hours). Insight into drain mechanisms—including time-dependent drain production—could help the development of personalized drainage durations.