British journal of neurosurgery
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The pathogenesis of idiopathic intracranial hypertension (IIH) is poorly understood. Several mechanisms have been suggested, but no one mechanism has been able to account for all manifestations of the disease. Although IIH predominantly affects obese, premenopausal women, little is known about whether or how the obesity contributes to the IIH. ⋯ One potential common pathway linking metabolic disorders to the pathogenesis of IHH is a thrombotic tendency due to dysregulation of haemostatic risk factors. This could cause either occult cerebral sinus thrombosis or partial thrombosis of the parasagittal venous lacunae, with subsequent impaired resorption of cerebrospinal fluid and venous hypertension. Investigations that evaluate obesity, fat metabolism, endocrinological dysregulation and thrombotic tendency in patients with IIH are required so that pathogenic mechanisms can be clarified and management strategies in IIH can be improved.
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Spontaneous intracranial hypotension (SIH) is an uncommon clinical entity that is often diagnosed after a delay, or it is misdiagnosed due to the variety of clinical presentations and the associated radiological findings. We present here a case of SIH associated with chronic subdural haematoma (SDH) and subarachnoid haemorrhage. Following the diagnosis of the SIH, the patient underwent injection of an epidural blood patch for the SIH and burr hole trephination was done for treating the chronic subdural haematoma.
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Review Case Reports
An unusual presentation of thoracic cord compression by a dorsal arachnoid cyst in a 14-month-old boy. A discussion of the case and review of the literature.
Spinal arachnoid cysts are a rare cause of spinal cord compression in children and presenting symptoms may be subtle. We present a neurologically intact 14-month-old boy who presented with pain and postural irritability from a thoracic arachnoid cyst.
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Randomized Controlled Trial
Effects of fluid therapy following aneurysmal subarachnoid haemorrhage: a prospective clinical study.
Blood transfusions and intravenous fluids are commonly employed as rescue therapy for delayed cerebral ischaemia following aneurysmal subarachnoid haemorrhage (aSAH). We sought to determine effects of various fluid supplements on clinical outcome in patients following aSAH. Clinical events and laboratory data of 160 aSAH patients were prospectively collected as part of 2 randomised controlled trials. ⋯ Colloid fluids (OR 2.53/L/day, p = 0.025) promoted unfavourable outcome at 6 months (OR 4.45, p = 0.035), while crystalloids decreased unfavourable outcome (OR 0.27/L/day, p = 0.005). Associations between synthetic colloids and crystalloids with GOS at 6 months were dose-related. Intravenous fluid therapy using synthetic colloids or blood transfusions may be associated with increased unfavourable outcome following aSAH.
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Multicenter Study
Epidemiology of ventriculostomy in the United States from 1997 to 2001.
Ventriculostomy is a common practice in neurosurgery, but the annual trend of this procedure in the United States has not been reported in the literature. This study evaluates the annual trend during a recent 5-year period. Between 1997 and 2001, a retrospective review was undertaken concerning all patients in the Nationwide Inpatient Sample (NIS) who had undergone ventriculostomy. ⋯ Patient and hospital demographic characteristics were consistent during the study period. By extrapolation of the data, the prevalence of ventriculostomy in the United States averaged 24,380 per year. This study is the first to comprehensively document data concerning the epidemiology of this common procedure.