World Neurosurg
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The pathophysiology of de novo aneurysm after stenting is poorly understood. Hemodynamic effects may play an important role. We report and discuss the hemodynamic analysis of de novo aneurysm after intracranial stenting. ⋯ The hemodynamic change after stenting may lead to formation of a de novo aneurysm. After an initial injury that might result from the tine on the endothelial cells, stenting could produce high oscillatory shear index and low time-averaged wall shear stress near the tine, thus potentially inducing de novo aneurysm formation.
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We have discussed the clinical features and neuroimaging findings and investigated the correlations between the clinical characteristics and different neuroradiologic phenotypes of cerebral small vessel disease (CSVD). ⋯ The present study has provided a comprehensive analysis of the clinical correlation of characteristics and neuroradiologic phenotypes in patients with CSVD. The insights from these findings could be used to refine the management strategy for patients with CSVD.
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The armamentarium for anterior skull base (ASB) reconstruction includes a variegate spectrum of grafts, endonasal pedicled flaps, regional pedicled flaps, and free flaps, which are selected to face specific scenarios. The use of a vascularized flap in case of large ABS defects ensures an adequate blood supply. The aim of this study was to evaluate the possible role of temporoparietal fascia flap (TPFF) in ASB reconstruction. ⋯ The supraorbital epidural corridor is a possible novel pathway for transposition of the TPFF for ASB reconstruction. Side-door TPFF was shown to be an ideal choice for large ASB defect with lateral supraorbital extension and could be useful in the scenario of salvage reconstruction for recurrent ABS cerebrospinal fluid leak.
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To investigate if the time trade-off (TTO) method reflects health-related quality of life (HRQoL) 10 years after an aneurysmal subarachnoid hemorrhage (aSAH). ⋯ Individuals willing to trade off years showed significantly poorer HRQoL; however the TTO method did not seem to fully reflect HRQoL. Most participants did not want to trade off years, despite their living with severe disability, making it difficult to fully rely on the TTO method in evaluation of medical outcome.
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Dissection of C2 guiding to the C1 lateral mass and facilitation of screw placement: Technical note.
Surgical intervention at the craniovertebral junction requires preoperative and intraoperative planning to get optimum postoperative results. Careful positioning minimizes the risk of iatrogenic injury and can also facilitate adequate surgical exposure. Tortuous venous channels that are usually encountered as the dissection proceeds may cause excessive bleeding before reaching the lateral mass (LM). However, both localization and placement may be made easier by altering the dissection technique and modifying the patient's position. Traditionally, the military tuck position is described for the dorsal approach to the craniovertebral junction. The objective of this study is to emphasize the role of arc or bow like position, a modification of prone position for adequate placement of C1 LM screw in these cases. ⋯ Visual axis to the lateral mass of C1 in an arc/bow position with head elevation puts C1 LM more in the visual axis of the operator, which makes the trajectory straight without causing much angulation while inserting the screw. At the same time, the axis vertebra guides the surgeon to the C1 lateral mass with no handling of dura.