World Neurosurg
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Review Case Reports
Tension pneumoventricle secondary to cutaneous-ventricular fistula. Case report and literature review.
Tension pneumoventricle (TPV) is a subtype of tension pneumocephalus in which the air is trapped inside the ventricles through a one-way osteodural defect, causing an increase in intracranial pressure. TPV secondary to cutaneous-ventricular fistula has been reported only twice in the literature. ⋯ This case report highlights the importance of suspecting and treating cutaneous-ventricular fistulas in TPV urgently in patients without skull base defects or those who showed no improvements with external ventricular drainage.
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Chondroblastoma is an uncommon benign neoplasm of cartilaginous origin usually involving the long bones. The temporal bone is a rare location for this tumor. The clinical profile, optimal medical and surgical management, and outcomes of treatment for temporal bone chondroblastoma remain unknown. ⋯ Temporal bone chondroblastoma has a distinct clinical profile from chondroblastoma of long bones. Surgery is the mainstay of treatment, and radiation therapy may be given after subtotal excision. Outcomes are generally favorable after treatment.
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Observational Study
Gamma knife radiosurgery for trigeminal neuralgia: role of trigeminal length and ponto-trigeminal angle on target definition and on clinical effects.
Gamma Knife radiosurgery (GKRS) is a well-defined treatment for trigeminal neuralgia. The aim of this study was to determine how the GKRS planning might change on the basis of the patient's own anatomy and how to best choose the target location. ⋯ The pontotrigeminal angle and the shot-emergence distance should be considered during GKRS planning: the first as a potential risk factor for hypoesthesia, and the second should not exceed 8 mm.
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We aimed to investigate the morphologic changes in the intervertebral foramen after minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF), and analyze the necessity of routinely performing contralateral intervertebral foraminal decompression in degenerative lumbar spondylolisthesis cases with bilateral symptoms. ⋯ Unilateral MIS-TLIF can effectively improve contralateral FH, DH, FW, RTP, and CSCA. It is not necessary to routinely perform contralateral intervertebral foramen decompression in degenerative lumbar spondylolisthesis with bilateral symptoms when symptoms are mild on one side.
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Dural arteriovenous fistulas (dAVFs) can often be successfully treated with endovascular embolization; however, surgery is occasionally still required. ⋯ The case and operative video provide a valuable addition to surgical literature in an era where surgical management of dAVFs has become relatively rare.