J Neurosurg Sci
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The purpose of this study was to clarify the morphologic features, location and variations of the dorsal root ganglion (DRG). ⋯ The DRG in the lumbar region play a key role in the occurence of low-back pain and sciatica; therefore, it is important to understand the anatomy of DRG. The accurate anatomic information about the position of DRGs would be useful to perform a safe surgical intervention in the lumbar foraminal region.
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External ventricular drains (EVDs) are used to manage acute hydrocephalus and facilitate brain relaxation after subarachnoid hemorrhage (SAH). We conducted a retrospective study on the relationship between CSF drainage volume and requirement and timing (early vs. late) for ventriculoperitoneal shunt (VPS) placement after EVD removal. We also sought to examine what factors were associated with volume of CSF drainage. ⋯ High CSF output is associated with early VPS placement. Prospective research on targeted CSF drainage volume is warranted.