Publications by authors named "Robert Zanabria Ortiz"
Microsurgical Treatment of Ruptured Spetzler-Martin Grade 3 Right Hippocampal Arteriovenous Malformation: 3-Dimensional Operative Video.
Oper Neurosurg (Hagerstown)
January 2020
Article Synopsis
- A 14-year-old male with a history of traumatic brain injury and seizures was found to have serious brain conditions, including hemorrhages and an arteriovenous malformation (AVM) in the right hippocampus after a CT and MRI scan.
- The patient suffered from severe headaches, dizziness, and ongoing seizures despite medication, along with significant deficits in cognitive functions like memory and planning.
- He underwent successful surgery to remove the AVM using a specific microsurgical approach, and he experienced no postoperative complications; a video of the procedure was created for educational purposes.
The insula plays a crucial role in speech planning due to its connections with cortical and subcortical areas. Surgical management of cavernous malformation (CM) of the insula consists of total resection of the lesion and the surrounding gliosis to avoid or reduce seizures. When located in the dominant hemisphere, an awake craniotomy with intraoperative mapping reduces the risk of functional damage.
View Article and Find Full Text PDFObjective: The endoscopic endonasal approach has become a routine corridor to the suprasellar region. The superior hypophyseal arteries (SHAs) are intimately related to lesions in the suprasellar space, such as craniopharyngiomas and meningiomas. Here the authors investigate the surgical anatomy and variations of the SHA from the endoscopic endonasal perspective.
View Article and Find Full Text PDFThe most common site of CSF leakage is the floor of the anterior cranial fossa, and less commonly in the sphenoid sinus. Only 3-4% of CSF fistulas are spontaneous. The fourth case is presented of a CSF rhinorrhea due to a transclival meningocele, an extremely rare location for these lesions, and the surgical approach.
View Article and Find Full Text PDFBackground: The intrathoracic complications from ventriculoperitoneal shunt placement are very rare. However, they are potentially serious if not treated.
Clinical Case: We report the case of thoracic migration of a peritoneal catheter after ventriculoperitoneal shunt and we also review the literature references with discussion of the different mechanisms of shunt-tip migration described.
Introduction: Rosette-forming glioneuronal tumor (RGNT) of the fourth ventricle is a rare tumor that has been recently characterized. RGNT was included as a new glioneuronal tumor in 2007 by the World Health Organization (WHO) in classification of tumors of the central nervous system. Within this group we found 34 documented cases.
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