Simon R Clark

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OBJECT Endoscopic third ventriculostomy (ETV) is the treatment of choice for hydrocephalus, but the outcome is dependent on the cause of this disorder, and the procedure remains principally the preserve of pediatric neurosurgeons. The role of ETV in adult patients with hydrocephalus was therefore investigated. METHODS One hundred ninety adult patients(More)
OBJECT Image-guided neuroendoscopy is being increasingly used in an attempt to reduce the morbidity associated with surgery and to make navigation easier. It has a particularly useful application in the pediatric population for the treatment of conditions such as complex hydrocephalus and arachnoid cysts. However, its use has been limited by the requirement(More)
OBJECTIVE The optimal management of medically refractory idiopathic intracranial hypertension (IIH) remains a point of debate. The senior author's practice evolved after a review of our units' practice in placing lumboperitoneal shunts revealed an unacceptably high rate of complication and revision. We now preferentially perform custom-designed(More)
OBJECT As many as 40% of shunts fail in the first year, mainly due to proximal obstruction. The role of catheter position on failure rates has not been clearly demonstrated. The authors conducted a prospective cohort study of navigated shunt placement compared with standard blind shunt placement at 3 European centers to assess the effect on shunt failure(More)
PURPOSE The long-term outcome in spina bifida-Chiari II-hydrocephalus complex is poorly understood. Traditional neurosurgical outcome measures are crude. Neuropsychological testing is increasingly important in outcome assessment. We investigated the health, disability, lifestyle and cognitive function in adults who had myelomeningocoele closure at birth. (More)
OBJECT The aim of this study was to prospectively evaluate the use of noninvasive electromagnetic neuronavigation in children, in particular its use in complex hydrocephalus and slit ventricle syndrome. METHODS Prospective data was collected from all pediatric patients undergoing insertion of ventriculoperitoneal shunts using electromagnetic frameless(More)
We present the first described case of cervical vertebral fusion associated with anterior meningocele and syringomyelia. A 45-year-old woman presented with minor trauma, and plain cervical spine radiographs highlighted a congenital deformity of the cervical vertebral bodies. She had a normal neurological examination; however, further imaging revealed a(More)
Electromyographic (EMG) feedback procedures were utilized in treating two adult patients with idiopathic subjective tinnitus. The relationship between behavioral severity ratings of tinnitus and EMG activity at the frontalis muscle was investigated using a single-subject, double-reversal experimental design. Biofeedback procedures were effective in(More)
The relationship between behavioral severity ratings of tinnitus and electromyographic (EMG) activity recorded at the frontalis muscle was investigated in a single adult female. A within-subject, double reversal experimental design was utilized. Although auditory biofeedback procedures were effective in decreasing and increasing EMG activity at frontalis(More)
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