World Neurosurg
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To observe anatomic relationships between lumbar bicortical pedicle screws (BPSs) at 2 sagittal section angles (SSAs) and lumbar artery (LA). ⋯ Lumbar BPSs present a risk of injury to the LA. The vertical angle is the recommended SSA for BPSs in L1 and L2, and the cephalic angle is the recommended SSA in L3 and L4.
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Intraoperative indocyanine green video angiography (ICG-VAG) is a useful tool in cerebral vascular surgery. In spinal procedures such as dural arteriovenous (AV) fistula, use of ICG-VAG is limited due to lower perfusion pressure. Therefore, we developed a new pooling technique with adapted workflow to improve intraoperative visualization. ⋯ Procedure modification in terms of ICG pooling enabled us to detect more easily the pathologic vascular architecture. ICG-VAG is a useful adjunct in the surgical treatment of spinal dural AV fistula because it is a real-time, noninvasive, and radiation-free technique with adequate image resolution.
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Standard electrostimulation cortical mapping includes application of electrical current to the explored areas through an electrode and marking of functional zones by means of paper tags with different symbols. This approach has several disadvantages. First, the electrode is moved randomly. It leads to overlooking of some zones, which causes mapping deficiency, and restimulation of others, which can trigger epileptic seizures. Second, the tags easily shift and close the marked structures. We describe a new simple device that provides precise cortical mapping without indicated problems and the technique to apply it. ⋯ Our case illustrates that the proposed invention can be successfully used in neurosurgical operations for precise electrostimulation mapping of the brain cortex.
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Antiplatelet therapy is common and complicates the operative management of subdural hematomas (SDH). The risk of reoperation inferred by antiplatelet medication and the ability of platelet transfusion to reduce hemorrhagic complications in patients presenting with antiplatelet associated SDHs are poorly defined. ⋯ Antiplatelet medication was not a significant predictor of reoperation following evacuation of an acute or mixed-density SDH. In patients on antiplatelet medication, preoperative platelet transfusion did not reduce reoperation rates.
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Cerebral amyloidoma is the rarest presentation of amyloid-related diseases of the central nervous system. We present the case of a patient with visual difficulty and an infiltrating lesion in the temporal lobe, shown by magnetic resonance imaging. In as much as a benign clinical course is expected, a knowledge of this entity, along with state-of-the-art imaging and close follow-up, could avoid invasive procedures such as biopsy.