Long-term follow-up review of patients with acute and subacute subdural hematomas.

The authors present 149 patients suffering from acute (112) and subacute (37) subdural hematomas admitted during the 10-year period 1965 to 1974, with a follow-up period of 2 to 12 years. During the time of observation, 104 patients died and 45 survived; 73% of the patients with acute and 27% with subacute subdural hematomas died. Of the patients with an acute subdural hematoma, 11% went back to work, as against 32% of those with subacute subdural hematomas. The 5-year survival rate was 28% in patients with acute and 76% in patients with subacute subdural hematomas.