261 cases with ruptured cerebral aneurysms who had undergone early surgery within 72 hours after the last rupture were evaluated from the point of their preoperative neurological severity on the WFNS SAH grading and the Hunt and Kosnik grading, and the relation to the outcome after six months was analyzed.
Although in evaluation by Hunt and Kosnik grading, many cases (42.1% of all) were classed as Grade III, which indicates an unpriedictable outcome, evaluation by WFNS grading placed them in Grade II, which indicates patients who can expect a good prognosis, and Grade IV, which indicates patients with poor prognosis. However, some cases (13.2%) of WFNS Grade V showed good recovery, so that to exclude cases whose WFNS grading does not indicate early surgery may run some risk of losing patients who actually have a good prognosis.
