[Analysis of three-year survivors in patients with glioblastoma].

In eighty patients with glioblastomas surgically treated, there were nine patients (11%) survived for more than three years, and one of the 9 patients survived for six years. The contributing factors responsible for the longteun survival are: (a) extensive removal of the tumor; (b) radioterapy by linear accelarator (40-60Gy) after surgery; (c) post operative chemotherapy with BCNU.