World Neurosurg
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Neurogenic stunned myocardium (NSM) is a devastating complication of subarachnoid hemorrhage (SAH). The most widely accepted mechanism in the pathogenesis of NSM and takotsubo cardiomyopathy is catecholamine-mediated direct myocardial injury. The aim of this study is to examine if there is any effect of sympathetic overactivity of the stellate ganglions on myocardial tissues, secondary to vagal complex degeneration in SAH-induced NSM. ⋯ NSM and takotsubo cardiomyopathy may be induced by vagal complex degeneration and sympathetic overactivity, which originated from more neurons, including stellate ganglia and more degenerated neuron densities of nodose ganglia.
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Severe kyphosis is infrequently seen in neonates with myelomeningoceles. Spinal skeletal dysmorphology complicates repair, as local tissue may be insufficient to cover the dural repair. Although neonatal kyphectomy has been proposed as a potential solution to this problem, it carries significant potential risks that may not be acceptable to families. ⋯ Acellular dermal matrix is a potentially useful adjunct for definitive reconstruction of complex neonatal soft tissue defects where local tissue is not available.
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The underlying mechanisms of headache in adult moyamoya disease (MMD) are not clear. The aim of this study is to clarify the factors that are associated with headache in adult patients with MMD after superficial temporal artery (STA)-middle cerebral artery (MCA) anastomosis. ⋯ The results of our analyses revealed that aside from ischemia, the postoperative increase rate of the STA may be a candidate reason for headache, especially in adult patients with MMD.
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Acute anterior inferior cerebellar artery (AICA) occlusion is considered an acute ischemic stroke requiring medical treatment without mechanical thrombectomy (MT). There is a procedural risk of parent vessel rupture, but neurologic deficits are not generally severe. Here, we report a case of MT performed using partially deployed stent retrieval for acute AICA occlusion. ⋯ Our case suggests that MT can be performed in a highly selective manner in patients with the occlusion of a posterior circulation branch, such as the AICA, and yield a good clinical outcome.
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The transvenous approach via the inferior petrosal sinus (IPS) is the most commonly used route to access cavernous sinus dural arteriovenous fistulas (CSDAVF). The facial (FV) or superficial temporal vein (STV) are alternatives in cases with IPS occlusion. However, navigation through the ophthalmic vein via FV or STV is difficult because of its specific anatomical features, such as abrupt angulations and tortuous course. Herein, we introduce a microwire looping method to overcome these obstacles, thus enabling access to cavernous sinus. ⋯ Making a microguidewire loop to pass through abruptly angulated or tortuous head and neck veins might be an effective and safe alternative for when catheterization is not feasible by the traditional method.