World Neurosurg
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Cerebrospinal fluid diversion via shunt placement is a common neurosurgical intervention. Keen's Point is a widely used landmark for accessing the trigone of the lateral ventricle; however, it lacks clinical validation. This study re-evaluates Keen's Point scalp parameters using magnetic resonance imaging (MRI) to identify an ideal shunt entry point based on 3-dimensional reconstructions. ⋯ This modified Keen's Point is a reliable landmark for ventriculostomy. Incorporating PCA into preoperative planning enhances catheter placement accuracy, providing a prominent approach to shunting at Keen's Point.
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Symptomatic intracranial hemorrhage (sICH) after mechanical thrombectomy (MT) is associated with worse outcomes. We sought to develop and internally validate a machine learning (ML) model to predict sICH prior to MT in patients with anterior circulation large vessel occlusion. ⋯ An ML model accurately predicted sICH prior to MT. It performed better than a standard statistical model and previously described clinical prediction models.
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We assessed the accuracy of pedicle screws placed during awake minimally invasive surgery (MIS) transforaminal lumbar interbody fusion (TLIF) under spinal anesthesia and analyzed outcomes at the 1-year follow-up. ⋯ Our study shows a high accuracy (99%) of pedicle screw placement in patients undergoing awake MIS-TLIF under spinal anesthesia and significant improvement of their symptoms at 1-year follow-up.
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Trigeminal neuralgia is usually associated with vascular compression of the nerve entry zone. However, a dolichoectatic basilar artery represents the cause in only up to 3% of cases.1 This is characterized by dilation, elongation, or tortuosity of the vertebrobasilar arteries.2 In 10%-30% of cases, pain relief is not achieved with medical treatment. Thus, microvascular decompression techniques have been proven the most effective. ⋯ This surgical video illustrates anatomic nuances and critical aspects of the retrosigmoid approach as a safe and adequate access for microvascular decompression in a rare case of a megadolichoectatic basilar artery (Video 1). The patient consented to the procedure and the publication of his images. Institutional review board/ethics committee approval was not required nor sought due to the nature of this paper.
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Assess the complications, clinical outcomes, and angiographic results of endovascular treatment (EVT) for ruptured intracranial posterior circulation aneurysms in small arteries, and identify their risk factors. ⋯ Reconstructive EVT for ruptured intracranial posterior circulation small artery aneurysms was generally safe and effective. However, the risk of complications and unfavorable clinical outcomes persisted. External ventricular drainage was a significant risk factor for in-hospital complications, whereas older age and higher World Federation of Neurosurgical Societies grades were predictors of unfavorable clinical outcomes.