World Neurosurg
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Retraction Of Publication
WITHDRAWN: Continuous lumbar cistern drainage before surgical clipping for aneurysmal subarachnoid hemorrhage.
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Hemodynamic factors impact cerebral aneurysm development and progression. Parent vessel architectural features, such as caliber, curvature, and angle, can affect downstream pressure and shear stress. ⋯ Ruptured status in bifurcation MCA aneurysms was associated with severity of proximal M1 stenosis and its proximity to the aneurysm neck, a novel risk factor, which acts by increasing aneurysm dome wall tension, and should be considered in investigations of rupture risk stratification.
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Hydrocephalus is a frequently encountered complication in the context of aneurysmal subarachnoid hemorrhage (aSAH). Here, we performed an external validation of the recently proposed postsubarachnoid shunt scoring (PS3) system, which aims to stratify patients presenting with aSAH based on their relative risk of requiring ventriculoperitoneal (VP) shunt insertion. ⋯ Data from this study validated the previously proposed PS3 system, which was found to more accurately predict shunt-dependent chronic hydrocephalus in patients with aSAH compared with other such systems in the neurosurgical literature, such as the chronic hydrocephalus ensuing from SAH score, Barrow Neurological Institute, and shunt dependency in aSAH systems.
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Review Meta Analysis Comparative Study
Accuracy of Pedicle Screw Insertion among Three Image-Guided Navigation Systems: A Systematic Review and Meta-Analysis.
Many retrospective studies of pedicle screw placement have revealed that intraoperative navigation systems provide higher accuracy rates and safety than do free-hand techniques. The accuracy of various image-guided navigation systems has been studied; however, differences have not been well defined due to the lack of adequate evidence-based comparative studies. ⋯ Significant differences exist among CT Nav, 3D FluoroNav, and 2D FluoroNav. Our review suggests that 3D FluoroNav may be superior to the other 2 methods in reducing pedicle violation and that clinicians should consider 3D FluoroNav as a better choice.
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Recent studies have shown higher accuracy rates of image-guided pedicle screw placement compared to freehand (FH) placement. However, data focusing on the impact of spinal navigation on the rate of revision surgeries caused by misplaced pedicle screws (PS) are scarce. ⋯ We were able to show that the use of 3DFL-navigated PS placement significantly reduces the rate of revision surgeries after posterior spinal instrumentation compared to freehand PS placement.