It is a chronic fluid-like hematoma situated in the subdural space (between the meninges and the brain). Iit occurs as a consequence of mild head injury that is often unnoticed. Risk factors include advanced age and antiplatelet or anticoagulant treatment. It usually manifests 2-3 weeks after the trauma, with several symptoms like headache, gait disturbance, disorientation, hemiparesis and urinary incontinence.
Surgical treatment consists in making a small burr hole in the skull to aspirate the hematoma with a catheter, which will be left usually in the subdural space for 24 hours to drain any remaining fluids.
Treatments:
Minimally invasive evacuation of chronic subdural hematomas