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  • Title: Outcomes for unruptured ophthalmic segment aneurysm surgery.
    Author: Lai LT, Morgan MK.
    Journal: J Clin Neurosci; 2013 Aug; 20(8):1127-33. PubMed ID: 23746571.
    Abstract:
    Ophthalmic segment aneurysms present unique technical challenges because of their proximity to the optic nerve and the anterior clinoid process. The current study was performed to examine whether surgery for unruptured ophthalmic segment aneurysms is an effective treatment modality with acceptable complication rates. A consecutive case series (prospectively collected data) was retrospective reviewed for the period between April 1992 and August 2012. Clinical results, operative complications, angiographic outcomes and prognostic factors associated with surgery are presented. Of the 169 patients with 182 unruptured ophthalmic segment aneurysms that were surgically repaired, 11 (6.4%) experienced new permanent neurological deficits, including six instances of complete visual loss. There was one postoperative death (0.6%) related to a middle cerebral artery infarction. Transient morbidity occurred in 18 patients (10.4%), including cerebrospinal fluid rhinorhea (10 patients), oculomotor nerve palsy (four patients) and transient dysphasia (four patients). A total of 142 aneurysms (78.0%) had documented postoperative angiography. Surgical treatment resulted in 135 (95.1%) complete obliterations and seven (4.9%) neck remnants. Retreatment was performed in three patients (1.7%). Logistic regression analysis of risk factors revealed that age (p < 0.02), aneurysm size (p < 0.01) and the use of temporary clipping (p < 0.01) were significant negative predictors of outcome. The risk associated with surgical repairs for unruptured ophthalmic segment aneurysms is no greater than aneurysms in other locations (6.4% morbidity; 0.6% mortality) and no more hazardous than outcomes achieved by alternative therapies. The robustness of aneurysm repair achieved by open microsurgery is an important consideration.
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