Early surgical repair of large intracranial saccular aneurysms
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Among 302 patients with cerebral aneurysms admitted between 1981 and 1986, 63 had a large (45) or giant (18) aneurysm with a diameter of more than 12 mm and 24 mm, respectively. 24 of these 63 patients were admitted early after a subarachnoid haemorrhage (SAH) so as to allow surgical repair within 72 hours. Eight of them were inoperable for various reasons and could not undergo definitive surgical repair and died. 16 patients underwent craniotomy and clipping of the aneurysm. 77% of the patients in preoperative grades I-IV made a good recovery with no or minimal neurologic deficit. During the same period 84% of patients with small aneurysms made a good recovery.
The present data indicate, that large aneurysms rupture with a similar incidence compared to small aneurysms; saccular large ruptured aneurysms can be operated upon early with similar results as small aneurysms. However, devastating initial bleeds and poor outcome occur more frequently in patients with ruptured giant than in patients with small aneurysms. Most of the patients with ruptured giant aneurysms are comatose on early admission and cannot be considered for early surgery. Their poor prognosis is further reduced by a high rebleeding rate.
KeywordsLarge cerebral aneurysms early surgical repair prognosis
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