Association Between Dietary Factors and Chronic Subdural Hematoma (DISH)

A prospective, multicenter, case control trial is designed to compare difference in dietary and nutritional factors in patients with and without chronic subdural hematoma.

Case group (CSDH group)Inclusion Criteria:Patients (18 years to 90 years) presenting with clinical symptoms and neurological deficits of CSDH.CSDH verified on cranial computed tomography or magnetic resonance imaging.Written informed consent from patients or their next of kin according to the patient's cognitive status.Control group (Healthy group)Inclusion Criteria:non-CSDH patients (18 years to 90 years) with matched age and gender.Written informed consent from patients or their next of kin according to the patient's cognitive status.Exclusion Criteria for both case and control group:Previous intracranial surgery for any neurological disorders but chronic subdural hematoma before.CSDH turned from acute subdural hematoma.Existing malignant tumors, poor medication condition or severe comorbidity.Difficulty in feeding requiring long-term enteral or parenteral nutrition support.Dietary and nutritional survey is estimated to be completed difficultly.Reproductive-age women without verified negative pregnancy testing.Participating in other research.