Patterns of subdural bleeds include: A chronic subdural hematoma can be asymptomatic (with few, if any, symptoms) for a long time. A subacute subdural hematoma can be asymptomatic for a few days ...

They'll close the flap with metal plates or screws. Burr hole surgery is the most common option for chronic subdural hematomas that develop a few days after a head injury. What it involves ...