Microsurgical treatment of intracranial saccular aneurysms

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✓ A consecutive series of 250 patients with cerebral aneurysms operated on with microsurgical techniques is presented. Good results were obtained in 83% of the entire series and in 94% of patients who were Grades 1, 2, and 3 preoperatively. The overall mortality rate was 5%; it was 1.6% for Grades 1, 2, and 3 patients, and there were no deaths in the 112 patients in Grades 1 and 2. The microsurgical techniques and the preoperative and operative factors that influenced the results are discussed.

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Present address for Dr. Flamm: Department of Neurosurgery, New York University Medical Center, New York, New York 10016.Present address for Dr. Tew: 506 Oak Street, Cincinnati, Ohio 45219.Address reprint requests to: Hugo A. Krayenbühl, M.D., Kantonsspital Zürich, Rämistrasse 100, 8006 Zürich, Switzerland.
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