Video article: the subtemporal extradural approach to cavernous sinus tumour.

Objective: Here we demonstrate via operative video the subtemporal extradural approach to a tumour in the cavernous sinus.

Methods: The extradural approach is performed here in a paediatric patient (a 15-year-old child) via a right extended pterional osteoplastic craniotomy with removal of the zygomatic arch. The operative microscope is introduced, and the dura is divided at the superior orbital fissure into endosteal and meningeal layers using a diamond knife.

Quantitative and functional visual field outcomes after endoscopic trans-sphenoidal pituitary adenectomy.

Objective: Quantitative data on visual outcomes after trans-sphenoidal surgery is lacking in the literature. This study aims to address this by quantitatively assessing visual field outcomes after endoscopic trans-sphenoidal pituitary adenectomy using the capabilities of modern semi-automated kinetic perimetry.

Methods: Visual field area (deg) calculated on perimetry performed before and after surgery was statistically analysed.

Prognostic value of leukocytosis in pediatric traumatic brain injury.

Objective: The purpose of this study was to assess leukocytosis and its prognostic value in pediatric isolated traumatic brain injury (TBI).

Methods: Two hundred one children with isolated TBI admitted to the authors' institution between June 2006 and June 2018 were prospectively followed and their data retrospectively analyzed. Initial blood leukocyte count (i.

Endovascular treatment of wide-necked intracranial aneurysms using the novel Contour Neurovascular System: a single-center safety and feasibility study.

Background And Purpose: Wide-necked bifurcation aneurysms pose a significant challenge to the treating clinician. The Contour Neurovascular System embolization device is a novel tool for the treatment of such intracranial aneurysms. We report on our experience with this device.

Chiari I malformation and altered cerebrospinal fluid dynamics-the highs and the lows.

Purpose: This paper reviews the altered cerebrospinal fluid dynamics that can be associated with paediatric Chiari I malformation and we present our own institutional experience.

Methods: We conducted a thorough review of the literature and retrospectively analyzed all cases of operatively managed paediatric Chiari 1 malformation at our institution between February 2006 and February 2019.

Results: Acquired Chiari malformation (ACM) can radiologically mimic Chiari I and has been associated with both intracranial hypotension (either secondary to lumboperitoneal shunting or spontaneous CSF hypotension) and idiopathic intracranial hypertension (IIH).

Outcome and prognostic features in paediatric pineoblastomas: analysis of cases from the Surveillance, Epidemiology, and End Results registry (1990-2007).

Background: Paediatric pineoblastomas are rare central nervous system tumours. Patient and treatment factors associated with outcome are poorly defined and limited to small retrospective case series and single case reports.

Methods: Using the Surveillance, Epidemiology, and End Results (SEER) cancer registry, we investigated clinical and pathological factors associated with outcome in paediatric pineoblastomas.

Factors associated with 30-day ventriculoperitoneal shunt failure in pediatric and adult patients.

OBJECTIVE The aim of this study was to provide a comprehensive benchmark of 30-day ventriculoperitoneal (VP) shunt failure rates for a single institution over a 5-year study period for both adult and pediatric patients, to compare this with the results in previously published literature, and to establish factors associated with shunt failure. METHODS A retrospective database search was undertaken to identify all VP shunt operations performed in a single, regional neurosurgical unit during a 5-year period. Data were collected regarding patient age, sex, origin of hydrocephalus, and whether the shunt was a primary or secondary shunt.

The learning curve for endoscopic trans-sphenoidal resection of pituitary macroadenomas. A single institution experience, Leeds, UK.

Background: The object of this study was to assess whether increasing operative experience results in greater endoscopic trans-sphenoidal resection of pituitary macroadenomas and lower complications.

Methods: A retrospective single institution cohort study was performed. Subjects underwent endoscopic trans-sphenoidal resection of pituitary macroadenoma between July 2009 and July 2016 by three neurosurgeons.

A rare case of anterior sacral meningocoele presenting as cauda equina syndrome.

The authors present a case of anterior sacral meningocoele demonstrating a clinical picture of cauda equina syndrome. To the best of our knowledge, such presentation has not yet been reported.

Case series of atypical high flow arterio-venous malformations in children.

Arteriovenous malformations (AVM) constitute a clinically significant form of vascular malformations in children. We present three cases of paediatric AVMs that demonstrated unusual features of high flow and significant shunting of blood without a clearly demonstrable nidus. Venous malformations were associated with the lesions.

Paediatric intramedullary spinal cord cavernous malformations: case report and review of the literature.

Cavernous malformations are vascular lesions which can occur throughout the entire neuraxis. This term is synonymous to cavernous angioma, cavernous haemangioma, and cavernoma. They comprise of closely packed, capillary-like vascular channels, without intervening neural tissue.

Endoscopic biopsy during third ventriculostomy in paediatric pineal region tumours.

Objects: The goal of the study was to establish if endoscopic biopsy during third ventriculostomy contributes to morbidity in the management of paediatric pineal region tumours presenting with hydrocephalus.

Materials And Methods: This study was a retrospective descriptive study in patients less than 18 years of age who have presented with a pineal region tumour between 2000 and 2006. Data were obtained from case notes.

Patients with autosomal-recessive osteopetrosis presenting with hydrocephalus and hindbrain posterior fossa crowding.

Osteopetrosis is a heterogeneous group of disorders characterized by abnormal bone sclerosis. As a result, patients often require input regarding various neurological complications. Although autosomal-recessive osteopetrosis has been associated with hydrocephalus, it has not been linked to hindbrain abnormalities.

Interlaminar approach for excision of lateral lumbar disc herniation: technical note.

Study Design: Technical note.

Objective: To show that approaching the lateral lumbar disc from the contralateral interlaminar space offers a wider exposure with reduced facet removal.

Summary Of Background Data: The interlaminar approach is a well-established approach for the removal of lateral lumbar disc herniation (LLDH).

Intracranial hypertrophic calcification complicating neuroendoscopy. Report of three cases.

Three cases are presented in which progressive hypertrophic calcification formed following ventricular endoscopy. After a ventricular endoscopy has been performed, it has been the authors' practice to seal the burr hole with bone dust. They believe that the calcifications formed from bone dust that fell into the track left by the endoscope.