Neurosurgery
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This is the second report of a Citrobacter-associated brain abscess in an adult and the first report of its association with an intradural tumor. Excluding those associated with trauma, neurosurgical procedures, and proximity to the skull base, only seven other cases of abscesses associated with intracranial tumors have been published. Five of seven tumor-associated abscesses with a microbiological diagnosis involved gram-negative bacteria, a finding that may indicate a predilection of these microorganisms for intracranial tumors. ⋯ The characteristic endothelial invasiveness of Citrobacter and related gram-negative bacteria may predispose to the formation of abscesses in association with intracranial tumors.
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Comparative Study
Anterolateral approach to the V2 segment of the vertebral artery.
We describe our surgical technique of exposure and control of the second segment of the vertebral artery (VA V2 segment). Our basic principle is that working in the VA vicinity is more confident under visual control. ⋯ Exposure and control of the VA V2 segment is safe if anatomy and variations are perfectly known, and if a rigorous step-by-step surgical technique is followed.
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Basilar artery occlusion is a clinical event with an exceedingly high mortality rate. Improved survival is closely associated with successful recanalization of the occluded basilar artery. Bilateral vertebral artery occlusion (BVAO) is a unique disease entity that effectively denies any direct access to the basilar artery for endovascular rescue therapy. We report a case of successful intra-arterial basilar artery thrombolysis in a patient with BVAO. ⋯ Knowledge of potential collateral pathways is important when direct access to the main intracranial vessels is not available. Basilar artery thrombolysis through collateral vessels is clinically effective when a direct approach to the artery is not feasible.
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The posterior subscapular approach to the brachial plexus is commonly indicated in patients with neural entrapment (neurogenic thoracic outlet syndrome, especially when associated with a large C7 transverse process or cervical rib) and paraspinal tumors or lacerating injuries involving the spinal nerves close to the spine. This approach is also preferred in patients with previous anterior neck operations and/or morbid obesity. We describe the anatomy and operative technique of this approach, which has been used by the senior author (DGK) for the past 25 years.
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Biography Historical Article
Neurosurgery 100 years ago: the Queen Square letters of Foster Kennedy.
The prominent New York City neurologist Foster Kennedy (1884-1952) trained at London's Queen Square from 1906 to 1910. He was exposed to a number of eminent neurologists including, Sir Victor Horsley and other surgeons. ⋯ Descriptions of the personalities involved give rare insight to this era. The Foster Kennedy syndrome--homolateral optic atrophy and contralateral papilledema with an inferior frontal tumor--was characterized under the stimulating support of Gowers and Horsley.