[Evaluation of surgical treatment for chronic subdural hematoma in extremely aged (over 80 years old) patients].

A consecutive series of 76 aged (over 80 years old; 50 male, 26 female) patients with chronic subdural hematoma (CSDH) was studied. They were analyzed about interval form trauma, preoperative grade according to Bender scale, coexisting disease, volume and location of hematoma, surgical procedures, postoperative outcome and complications. Sixty-six% of patients had a history of trauma. Clinical findings at the time of admission were graded according to Bender scale. The majority of patients belonged to grade 2 (41 cases) and grade 3 (23 cases) followed by grade 1 (8 cases) and grade 4 (4 cases). The volume of CSDH was classified into three group; under 79 ml (21 cases), between 80 and 119 ml (28 cases), over 120 ml (27 cases). Almost all of patients were operated by burr hole, irrigation with drainage or Ommaya's reservoir. Six cases needed reoperation. Six cases suffered from infections. Sixty-eight (89%) patients improved at the time of discharge. Surgical procedure is the best choice for CSDH even in extremely aged patients.