World Neurosurg
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Case Reports
Adjunct to embolize the high-flow fistula part of AVM using double lumen balloon catheter.
The purpose of this study is to report our initial experience of Onyx embolization of the high-flow fistula part of arteriovenous malformation (AVM) using a double-lumen balloon catheter. ⋯ The double-lumen Scepter balloon appears to be a safe and convenient device for Onyx embolization of high-flow fistulas.
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There is uncertainty about the optimal method for measuring the decompressive craniectomy (DC) surface area and how large the DC should be. ⋯ The ideal surface area for "large" square bone flaps should result in an MLS of <5 mm. Enlargement of the craniectomy edges should be considered for patients in whom MLS ≥5 mm persists according to early postoperative computed tomography scans.
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Constrains on neurosurgical residents' work hours demand innovative teaching models to complement the traditional "in the operating room" model. Stratathane ST-504 (Strata-Tech, Inc., Des Moines, Iowa, USA) has been proposed as a useful artificial neurosurgical tumor model. The consistency, dissectability, and radio-opacity of this model strongly depend on its preparation and storage. However, little work has addressed the interplay of these properties. Hence our study was undertaken to explore the properties of ST-504, its preparation, and storage and how these interactions affect its radio-opacity and consistency. ⋯ For any given ratio of ST-504/water, the time sequence after polymer solidification and the storage method determine the computed tomography appearance and consistency of the tumor block/model. When taking these properties into consideration, ST-504-based artificial tumor models can be customized for different dissection practices, from more solid (meningioma-like) to less solid (schwannoma-like) models.
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Stereotactic biopsies are carried out to obtain tumor tissue of unknown entity from cerebral lesions. Thus, tumor tissue can be examined, resulting in correct diagnosis and treatment. These procedures go in hand with high accuracy, high diagnostic yield, and low complication rates. ⋯ Because of their localization, pineal lesions may result in emergence of a hydrocephalus. Stereotactic biopsies in this area may increase this effect and, thus, even VP shunts are necessary in some patients.
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The objective of this study is to classify patients using federally mandated categories of ethnicity and race and to determine whether subgroups are associated with patient outcomes and aneurysmal subarachnoid hemorrhage (SAH). ⋯ There are differences in baseline characteristics and the proportion of SAH. Future studies must take into account risk factors and outcomes not reported in the database.