Management mortality and the timing of surgery for supratentorial aneurysms

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✓ A retrospective analysis of 224 patients with a ruptured supratentorial aneurysm, admitted to the care of one of six neurosurgeons on the day of or the day following their subarachnoid hemorrhage, was carried out. Both postoperative and management mortality rates were calculated by the grade of the patient on admission. There were no statistically significant differences in postoperative and management mortality rates when patients were categorized by time of operation, except for the increased management mortality for Grade 3 and 4 patients who were operated on late.

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Address reprint requests to: Bryce Weir, M.D., Suite 520, 8409 112th Street, Edmonton, Alberta, Canada, T6G 1K6.

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    Summary of the outcome by admission grade in 224 cases of subarachnoid hemorrhage (SAH) admitted on Day 0 or Day 1 after hemorrhage. For the grading system see text. “Operation” means clipping of the aneurysm. Since the actual hour of SAH was often unknown, patients admitted on the same date as their SAH were said to be admitted on Day 0; if admitted on the next day they were counted as Day 1 admissions.

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