Microsurgical technique in the treatment of intracranial aneurysms.

A consecutive series of 137 patients with cerebral aneurysms operated on with microsurgical techniques is presented. Occlusion of the aneurysm was performed in 133 patients. Good results were obtained in 85.5% of the entire series and in 92.6% of the patients who were in satisfactory condition preoperatively. The overall mortality rate was 5.8%, and 3.7% for the patients in satisfactory condition. The preoperative and operative factors that influenced the results are discussed.