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  • Title: Does intraoperative aneurysm rupture influence outcome? Analysis of 169 patients.
    Author: Sandalcioglu IE, Schoch B, Regel JP, Wanke I, Gasser T, Forsting M, Stolke D, Wiedemayer H.
    Journal: Clin Neurol Neurosurg; 2004 Mar; 106(2):88-92. PubMed ID: 15003296.
    Abstract:
    OBJECTIVES: The aim of this study was to evaluate the prognostic value of intraoperative aneurysm rupture (IAR) in patients with subarachnoid hemorrhage (SAH) undergoing surgery for cerebral aneurysms. PATIENTS AND METHODS: Between July 1997 and April 2000, 292 consecutive patients were admitted to our institution with SAH due to ruptured intracranial aneurysms. Of these, 169 patients were treated surgically according to standard microsurgical procedures and were included in this study. Mean age was 47 years. Initial clinical state was graded according to the classification of Hunt and Hess (HH). Outcome was classified according to the Glasgow Outcome Scale as favorable (grades IV and V) and unfavorable (grades I-III). Outcome of patients with intraoperative ruptured and non-ruptured aneurysms was analyzed in correlation to the preoperative clinical state and with respect to the time of surgery and to aneurysm localization. RESULTS: Different rupture rates were observed with respect to the localization of the aneurysm: anterior circulation (n=69) 39.1%, middle cerebral artery (n=46) 34.8%, internal carotid artery (n=48) 31.2%, and posterior circulation (n=6) 16.7%. Patients with HH-grades I-III showed a favorable outcome in 72.2% (61 of 84 patients) without intraoperative rupture and in 71.7% (33 of 46 patients) with intraoperative aneurysm rupture. The corresponding values for patients with HH-grades IV/V were: favorable outcome in 34.6% (9 of 26 patients) and 23.1% (3 of 13 patients), respectively. Poor initial clinical condition (HH IV and V) as well as the initial Fisher grades III and IV were strongly associated with poor clinical outcome. CONCLUSIONS: Intraoperative aneurysm rupture has no impact on the outcome, neither in patients with good initial condition nor for poor grades patients.
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