World Neurosurg
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Retraction Of Publication
Frame-Based Stereotactic Brain Biopsy and Symptomatic Intracranial Hemorrhages: Associated Factors in a Series of 407 Patients.
This article has been withdrawn at the request of the author(s) and/or editor.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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Case Reports
Endovascular treatment of Vertebral-Venous Fistula with flow diverting stent: A Case Report.
Vertebral-venous fistulas (VVFs) are a rare vascular condition and are commonly associated with trauma but may also be idiopathic, spontaneous, or congenital. A current literature review reveals there is no level 1 evidence or established guidelines on optimal treatment for VVF. Diagnosis is often confirmed by catheter cerebral angiogram. Treatment goals are complete occlusion of the fistula, which can be achieved by both endovascular closure and/or surgical ligation treatment. Telescopic Pipeline flow-diversion stents are a common treatment modality for aneurysms and have also been described to successfully treat different types of cranial arteriovenous fistulas including carotid-cavernous fistulas.There is, however, no English literature available regarding its use in the management of VVFs, which are rare entities. ⋯ This case report highlights the potential of flow-diversion stents in the treatment of VVF. This technique was shown to be a safe and effective method of treatment for VVF. Important limitations, however, need to be considered before this form of treatment for VVF, including the need for multiple devices, extended duration of treatment, and associated increased costs involved.
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The aims of this retrospective cohort study were to 1) identify new alignment risk factors for proximal junctional kyphosis (PJK) in adult spinal deformity (ASD) patients with lower thoracic upper instrumented vertebra (UIV) and 2) determine the effect of junctional tethers on PJK and UIV alignment. ⋯ Junctional tethers significantly reduced PJK in ASD patients with lower thoracic UIV. In tethered patients, PJK was more common with greater postoperative lordosis of the upper lumbar spine and greater UIV angle. This finding suggests potential benefit of tethers to mitigate effects of segmental lumbar and focal UIV malalignment that may occur after deformity surgery.
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Myelomeningocele patients with shunt-dependent hydrocephalus often require multiple shunt revisions, eventually exhausting first-line distal diversion sites. Ventriculoatrial (VA) shunts are used less commonly than ventriculoperitoneal shunts, but knowledge of their use and complications is important to the neurosurgeon's armamentarium. VA shunts differ from ventriculoperitoneal and ventriculopleural shunts in that the ideal distal catheter target is an anatomically small area in comparison with the peritoneal and pleural cavities. ⋯ This is the fourth reported instance of successful distal revision of a migrated VA shunt catheter via transfemoral endovascular snaring. Knowledge of the opportunities afforded by this technique and collaboration with thoracic surgery colleagues is of benefit to all neurosurgeons.