Juan F. Villalonga

Aparición de neumoencéfalo posoperatorio en cirugía de fosa posterior en posición semisentada: prevalencia, factores y patrones

Liezel Ulloque-Caamaño, Mario Gomar-Alba, Benjamín Romero-Leguina, Nadín J. Abdalá-Vargas et autres

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Microsurgical resection of cervical ependymomas in semisitting position: Technical considerations and outcomes from a case series

Andrea L. Castillo, Regina M. Selva, Matías Baldoncini, Juan F. Villalonga et autres

ar, ni (code pays fourni par la source)

Occurrence of postoperative pneumoencephalus in posterior fossa surgery using the semi-sitting position: Prevalence, factors and patterns

Liezel Ulloque-Caamaño, Mario Gomar-Alba, Benjamín Romero-Leguina, Nadín J. Abdalá-Vargas et autres

ar (code pays fourni par la source)

Retrosigmoid transhorizontal fissure approach for the resection of a pontine cavernous malformation: Three-dimensional operative video

Gerardo Guinto, Rodrigo Uribe-Pacheco, Marcos V. Sangrador-Deitos, Matías Baldoncini et autres

Background: Brainstem cavernous malformations (BSCMs) represent a surgical challenge due to their location deep within critical neural pathways. While histologically benign, BSCMs exhibit an aggressive clinical course, with a higher risk of bleeding and rebleeding than supratentorial cavernomas, often leading to significant …

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Trans-tonsillar approach for resection of a tumor located in the lateral aspect of the medulla: Operative video

Álvaro Campero, Juan F. Villalonga, Edgar G. Ordóñez-Rubiano, Carlos Castillo-Rangel et autres

Background: The purpose of this video is to describe the microsurgical corridor of the trans-tonsillar approach for resection of a tumor located in the right lateral aspect of the medulla. Case Description: We presented a 56-year-old patient with headache and diplopia. On …

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Technical considerations of neuroendoscopic management of obstructive hydrocephalus secondary to intraventricular hemorrhage

José Javier Guil-Ibáñez, Mario Gomar-Alba, Fernando García-Pérez, Juan F. Villalonga et autres

Background: Intraventricular hemorrhage (IVH) is a critical neurosurgical condition frequently complicated by acute obstructive hydrocephalus, requiring urgent intervention. While external ventricular drainage remains the classic and widely accessible treatment, neuroendoscopic techniques have emerged as a minimally invasive option that allows direct resolution …

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Retrosigmoid approach for the resection of a large choroid plexus papilloma: Three-dimensional operative video

Marcos V. Sangrador-Deitos, Rodrigo Uribe-Pacheco, Gerardo Guinto, Juan F. Villalonga et autres

Background: Choroid plexus papillomas of the infratentorial compartment are rare, benign tumors, commonly arising from the inferior roof of the fourth ventricle, with frequent extension into the foramina of Magendie and Luschka and toward the cerebellopontine cistern. Clinical presentation often reflects intracranial …

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Pituitary entry zone: Newly Midline Hypovascular Area in Pituitary Gland

Gerardo Marín, Carlos Castillo-Rangel, Cristofer Zarate-Calderon, Karla Aketzalli Hernández-Contreras et autres

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Diverse accessory techniques and working corridors to enhance the retrosigmoid approach: a versatile option for the treatment of meningiomas of the petroclival region

Andrea L. Castillo, Juan F. Villalonga, Francisco Zarra, Matías Baldoncini et autres

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Anatomy of the sellar barrier: From magnetic resonance imaging to the operating room

Mauro Marcelo Suarez Marín, Mario Gomar-Alba, Juan F. Villalonga, Paula Alonso et autres

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Endoscopic third ventriculostomy plus valveless catheter in the treatment of low-pressure hydrocephalus.

Juan F. Villalonga, Amparo Sáenz, José I. Pailler, Andrea L. Castillo et autres

AIM: To evaluate the outcomes in low-pressure hydrocephalus (LPH) following an endoscopic third ventriculostomy, and placement of a valveless ventriculoperitoneal or ventriculoatrial shunt catheter. MATERIAL AND METHODS: This novel surgical technique was assessed in a prospective case series at a single center …

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Semi-sitting position and retrosigmoid approach for a large petroclival meningioma resection: 3-dimensional operative video

Rodrigo Uribe-Pacheco, Marcos V. Sangrador-Deitos, Gerardo Guinto, Juan F. Villalonga et autres

Background: Petroclival meningiomas are still a neurosurgical challenge due to their proximity to cranial nerves and cerebral vasculature along the surgical corridor. The usual extension of large petroclival meningiomas is along the posterior fossa, frequently compromising and displacing adjunct cranial nerves such …

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