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We present a 50-year-old patient who had undergone stereotactic radiosurgery for a cerebellar vermian arteriovenous malformation. On routine surveillance MR imaging a lesion suggestive of a meningioma was demonstrated and removed. Histologically it was found to be intravascular papillary endothelial hyperplasia (Masson's tumour). The characteristic(More)
Angiogenesis plays a key role in glioblastoma biology and antiangiogenic agents are under clinical investigation with promising results. However, the angiogenic profiles of patients with glioblastoma and their clinical significance are not well understood. Here we characterize the serum angiogenic profile of patients with glioblastoma, and examine the(More)
Disorders of sodium and water balance are common in critically ill adult neurologic patients. Normal aspects of sodium and water regulation are reviewed. The etiology of possible causes of sodium disturbance is discussed in both the general inpatient and the neurologic populations. Areas of importance are highlighted with regard to the differential(More)
OBJECT In this paper the authors' goal was to report on and examine (in the context of a large hospital with good endovascular intervention provisions) the activities of a neurosurgeon with a dedicated vascular interest in the era after the International Subarachnoid Aneurysm Trial in the United Kingdom. They also aimed to establish therapeutic trends and(More)
The Excimer Laser Assisted Non-occlusive cerebral vascular Anastomosis (ELANA) has been proposed as a major advance in the field of cerebral revascularisation. Appreciable challenges remain, however. We report our experience with introducing this technique to the UK and review the field of cerebral revascularisation and flow replacement. Retrospective(More)
A retrosigmoid craniectomy was performed for acoustic neuroma during which bone wax was used to control emissary vein bleeding. Postoperatively the patient developed an extensive venous thrombosis due to wax in the sigmoid sinus from which she recovered. We discuss this rare complication of posterior fossa surgery.
BACKGROUND Implementation of the European Working Time Directive (EWTD) raises questions about reduced surgical training opportunities and lost continuity of patient care. We studied the effect that the EWTD has had in these areas for residents in the neurosurgical unit at St. George's Hospital, London, UK. METHODS Case notes for 50 emergency and 50(More)
BACKGROUND AND PURPOSE Spontaneous aneurysmal subarachnoid haemorrhage (SAH) is managed as a neurosurgical priority with guidelines and published literature emphasising the identification and the treatment of the ruptured aneurysm within 48 h of ictus. We audited the timing of management of good grade (WFNS 1 & 2) SAH in a neurosurgical unit in Greater(More)
Gaze is an important cue in visually situated dialog, grounding referring expressions to objects in the environment. We present a new technique which demonstrates that monitoring real-time listener gaze – and giving appropriate feedback – enhances reference resolution by the listener: In a 3D virtual environment, users followed directional instructions,(More)