• Lukas Goertz, Christoph Kabbasch, Jan Borggrefe, Christina Hamisch, Sergej Telentschak, Niklas von Spreckelsen, Pantelis Stavrinou, Marco Timmer, Gerrit Brinker, Roland Goldbrunner, and Boris Krischek.
• Center for Neurosurgery, University Hospital of Cologne, Cologne, Germany. Electronic address: lukas.goertz@uk-koeln.de.
• World Neurosurg. 2018 Dec 1; 120: e1163-e1170.

ObjectiveMicrosurgical clipping of aneurysms demands precise spatial understanding of aneurysm morphology and vascular geometry. We analyzed the impact of preoperative three-dimensional (3D) angiographic imaging on clinical and angiographic outcome after clipping of ruptured intracranial aneurysms.MethodsThis is a retrospective analysis of consecutive patients who underwent microsurgical clipping during the acute phase of subarachnoid hemorrhage between 2010 and 2017. Surgical planning was made based on two-dimensional (2D) or 3D angiographic images. We retrospectively compared complication rates, morbidity, and angiographic outcome between these 2 groups.ResultsA total of 157 patients (mean age: 54.8 ± 13.1 years) were included in the study. Preoperative 3D angiographic imaging was available for 117 cases. The rate of procedure-related ischemia was significantly lower in the 3D group (16.2%) than in the 2D group (35.0%; P = 0.013). In the multivariate analysis, 2D imaging alone remained as independent factor for subsequent brain ischemia (odds ratio: 2.8, 95% confidence interval 1.2-6.6; P = 0.018). Favorable outcome (modified Rankin scale ≤2) was more often attained in the 3D group (70.0%) than in the 2D group (41.9%; P = 0.002). The rate of complete aneurysm occlusion was not significantly different between the 2 groups (P = 0.967).ConclusionsIn our study, accurate operation planning using 3D angiography was associated with a lower ischemic complication rate after clipping of ruptured intracranial aneurysms, which may potentially influence clinical outcome.Copyright © 2018 Elsevier Inc. All rights reserved.

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