World Neurosurg
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Rupture of spinal aneurysms is a rare cause of subarachnoid hemorrhage. These aneurysms are often associated with a variety of vascular malformations that increase blood flow in the spinal circulation or with disorders that compromise the vessel wall. However, spinal aneurysms may be isolated, not associated with any known predisposing condition. The objective of this study is to explore the possible mechanisms associated with the formation and rupture of isolated spinal aneurysms (ISAs). ⋯ We suggest that the straining during prolonged retching and vomiting plays a role in the formation and rupture of some ISAs, possibly because of pressure spikes, increased transmural arterial pressure, and increased wall shear stress during straining.
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The Sofia catheter is a new large-bore aspiration catheter that allows easy access and good reperfusion. In this study, we analyzed the efficacy and safety of the Sofia catheter in comparison with stent retrievers as a contact aspiration thrombectomy (CAT) tool for large vessel occlusion. ⋯ The Sofia Plus is a large-bore aspiration catheter with high FPE and good accessibility. Use of this catheter resulted better angiographic outcome compared with the stent retriever, but there was no difference in clinical outcomes in this study. Further studies are needed to compare in new generation aspiration catheters.
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Multimodal monitoring of intracranial pressure and brain tissue oxygen tension (PbtO2) have been increasingly used to detect delayed cerebral ischemia (DCI) after subarachnoid hemorrhage. At our center, patients who cannot be easily assessed clinically will undergo intracranial pressure and PbtO2 monitoring via a NEUROVENT-PTO bolt. We aimed to determine whether the Lindegaard ratios (LRs) computed from transcranial Doppler ultrasonography (TCDU) would correlate with, or can predict, the simultaneously recorded PbtO2 value. ⋯ We find TCDU to be specific for predicting cerebral hypoxia (measured via an intraparenchymal probe). Therefore, it could be a useful and noninvasive tool in the context of preventative DCI monitoring. However, given the low sensitivity, the lack of vasospasm on TCDU should not preclude the possibility of the presence of evolving DCI.
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In recent years, there has been increasing study of ossification of the posterior longitudinal ligament (OPLL), leading to many articles on this topic. We aimed to identify trends in OPLL-related research and to analyze the most highly cited scientific articles on OPLL. ⋯ The scientific literature on OPLL has rapidly expanded in recent years. This study represents the first bibliometric analysis of scientific articles on OPLL and can serve as a useful guide to clinicians and researchers in the field.