Combined microscopic transoral and endoscopic endonasal approach for a clival chordoma: A case report and literature review.

Background: Chordomas are primary bone tumors derived from the embryonic notochord. They represent 1-4% of all malignant bone tumors. They have a predominantly extra-axial location, arising in the clival region in 35% of reported cases.

Pituitary Apoplexy: Description of Medical and Surgical Treatment and Clinical, Visual, and Endocrinological Outcomes During the SARS-CoV-2 Pandemic and Over Three Years.

Introduction: Pituitary apoplexy (PA) is a rare neuroendocrinological emergency. The SARS-CoV-2 pandemic recommendations led to a shift in the management of patients with pituitary diseases, especially in the decision-making between conservative and surgical treatment of patients with PA.

Objective: This study aimed to describe the conservative and surgical treatment and the clinical, visual, and endocrinological outcomes in patients with PA at the Pituitary Center of Excellence (PTCEO) during the SARS-CoV-2 pandemic and within three years.

Endovascular stenting using a sagittal sinus approach for sigmoid sinus wall dehiscence related to intractable pulsatile tinnitus: a case series.

Background: Sigmoid sinus wall dehiscence can lead to pulsatile tinnitus with a significant decrease in quality of life, occasionally leading to psychiatric disorders. Several surgical and endovascular procedures have been described for resolving dehiscence. Within endovascular procedures, the sagittal sinus approach could be a technical alternative for tracking and accurate stent positioning within the sigmoid sinus when the jugular bulb anatomy is unfavorable.

Augmented reality simulation as training model of ventricular puncture: Evidence in the improvement of the quality of punctures.

Background: Ventricular puncture is a common procedure in neurosurgery and the first that resident must learn. Ongoing education is critical to improving patient outcomes. However, training at the expense of potential risk to patients warrants new and safer training methods for residents.

Neurenteric Cyst of the Posterior Cranial Fossa: A Case Report and Literature Review.

Neurenteric cysts (NCs) are rare benign endodermal lesions of the central nervous system (CNS), most commonly found in the spinal cord. Intracranial lesions are rare, among which the posterior fossa appears to be the predominant location. We present a case of a 60-year-old man who presented with a suddenly decreased level of consciousness.

Upward transtentorial herniation: A new role for endoscopic third ventriculostomy.

Background: The placement of external ventricular drainage (EVD) to treat hydrocephalus secondary to a cerebellar stroke is controversial because it has been associated to upward transtentorial herniation (UTH). This case illustrates the effectiveness of endoscopic third ventriculostomy (ETV) after the ascending herniation has occurred.

Case Description: A 50-year-old man had a cerebellar stroke with hemorrhagic transformation, tonsillar herniation, and non-communicating obstructive hydrocephalus.

Frontotemporal brain sagging syndrome: Craniospinal hypovolemia secondary to a T6-T7 cerebrospinal fluid-venous fistula.

Background: The frontotemporal brain sagging syndrome (FTBSS) is defined as an insidious/progressive decline in behavior and executive functions, hypersomnolence, and orthostatic headaches attributed to cerebrospinal fluid (CSF) hypovolemia. Here, a T6 CSF-venous fistula (e.g.

Multidrug-resistant Klebsiella oxytoca ventriculitis, successfully treated with intraventricular tigecycline: A case report.

A 38-year-old male presented to the hospital with headache, fever, and meningeal signs. He had undergone a surgical review of a ventriculoperitoneal shunt system one month earlier. A head computed tomography scan showed hydrocephalus.

Hybrid fluorescein-guided surgery for pituitary adenoma resection: a pilot study.

Objective: The authors conducted a pilot study on hybrid fluorescein-guided surgery for pituitary adenoma resection and herein describe the feasibility and safety of this technique.

Methods: In this pilot study, the authors included all consecutive patients presenting with pituitary adenomas, functioning and nonfunctioning. They performed a hybrid fluorescein-guided surgical technique for tumor resection.

Neurosurgical Therapy for Status Epilepticus in Oligoastrocytoma Patients.

Background: Super-refractory status epilepticus (SRSE) is a life-threatening neurologic emergency defined as "status epilepticus (SE) that continues 24 hours or more after the onset of anesthesia, including those cases in which the SE recurs on the reduction or withdrawal of anesthesia," which occurs in 10% to 15% of patients with SE and rarely has been resolved surgically.

Case Descriptions: A 20-year-old man with SRSE and a long history of left parieto-occipital oligoastrocytoma was admitted for convulsive SE that became SRSE and underwent lesionectomy guided by electrocorticography and neuronavigation for local tumor recurrence. Histopathologic diagnosis was oligoastrocytoma.

Intraoperative monitoring of the abducens nerve in extended endonasal endoscopic approach: a pilot study technical report.

Background: To determine the reliability and usefulness of intraoperative monitoring of the abducens nerve during extended endonasal endoscopic skull base tumor resection.

Methods: We performed abducens nerve intraoperative monitoring in 8 patients with giant clival lesions recording with needle electrodes sutured directly into the lateral rectus muscles of the eye to evaluate spontaneous electromyographic activity and triggered responses following stimulation of the abducens nerves.

Results: A total of 16 abducens nerves were successfully recorded during endoscopic endonasal skull base surgeries.

Endoscopic endonasal infrasellar approach to the sellar and suprasellar regions: technical note.

We report a technical variation of the endoscopic endonasal approach to the sellar and suprasellar regions which relies on the use of a 45-degree angled endoscope. The so-called "infrasellar approach" aims at excising lesions situated within the intermediate and posterior lobes of the pituitary gland without damaging the anterior lobe, thus potentially minimizing endocrinological morbidity. In this regard the endoscopic infrasellar approach might be advantageous in selected cases when compared with the traditional transsphenoidal approach with the microscope.