[No Title Available]

Abstract

Existem na literatura neurocirúrgica relatos sobre aneurismas gigantes. O tratamento ideal ainda não foi definitivamente estabelecido, variando a conduta entre a ligadura da carótida cervical e a craniotomia com clipagem e ressecção do aneurisma.

Giant pseudoaneurysm originated from distal middle cerebral artery dissection treated by trapping under sensitive evoked potential and motor evoked potential monitoring: Case report and discussion

“…[ 8 ] The largest saccular dilatation ever reported had 12 cm × 8 cm × 6 cm in diameter. [ 14 ] In a series of 1344 aneurysms treated, 17.3% were 15 mm or larger and 6.1% were 25 mm or larger. [ 21 ] Atherosclerosis possibly play a part on older subjects and enlargement of the wall is thought to occur due to laminar necrosis, thrombus formation within the sac followed by scarring of the wall or repeated hemorrhages, which are subjected to the process of encapsulation and organization.…”

“…Giant aneurysms may produce symptoms and signs that resemble those of a mass lesion, and multiple neurological deficits, seizures, and endocrine disturbances can occur depending on the location. [ 4 14 ] Giant MCA aneurysms may also result in chronic, unilateral headaches that might help locate the lesion. [ 6 ] A high mortality rate of 65–85% within 2 years (due to rupture or rerupture) has been reported, and aneurysm rupture survivors are often left with severe neurological deficits.…”