Effect of the Postoperative Trendelenburg Position on Chronic Subdural Hematoma Recurrence

Inclusion Criteria: * The study included patients aged 18 years or older who required surgical management of symptomatic CSH confirmed by CT scan and whose informed consent was given by the patient or responsible family member to participate in the study Exclusion Criteria: * Pregnant or breastfeeding * Conditions in which the trendelenburg position might not be safe, such as intracranial hypertension without a drain to allow evacuation of the hematoma, cardiovascular instability (severe heart failure, unstable angina, cardiogenic pulmonary edema), acute respiratory distress syndrome without a secure airway, glaucoma, spinal cord trauma not stabilized with surgery, peripheral vascular disease, * History of ipsilateral chronic subdural hematoma drainage, intracranial hypotension syndrome, ventriculoperitoneal shunting * Simultaneous participation in any other clinical trial.