The aim was to capture interdisciplinary expertise from a large group of clinicians, reflecting practice from across the UK and further, to inform subsequent development of a national consensus guidance for optimal management of idiopathic intracranial hypertension (IIH).MethodsBetween September 2015 and October 2017, a specialist interest group including neurology, neurosurgery, neuroradiology, ophthalmology, nursing, primary care doctors and patient representatives met. An initial UK survey of attitudes and practice in IIH was sent to a wide group of physicians and surgeons who investigate and manage IIH regularly. A comprehensive systematic literature review was performed to assemble the foundations of the statements. An international panel along with four national professional bodies, namely the Association of British Neurologists, British Association for the Study of Headache, the Society of British Neurological Surgeons and the Royal College of Ophthalmologists critically reviewed the statements.ResultsOver 20 questions were constructed: one based on the diagnostic principles for optimal investigation of papilloedema and 21 for the management of IIH. Three main principles were identified: (1) to treat the underlying disease; (2) to protect the vision; and (3) to minimise the headache morbidity. Statements presented provide insight to uncertainties in IIH where research opportunities exist.ConclusionsIn collaboration with many different specialists, professions and patient representatives, we have developed guidance statements for the investigation and management of adult IIH.
The authors recommend the use of fluid-attenuated inversion recovery and diffusion sequence MRI when definitive radiologic diagnosis of cystic intracranial lesions becomes difficult with routine computerized tomographic scanning and MRI.
A prospective analysis of patients referred by Otolaryngologists from a tertiary hospital for detailed assessment of the posterior cranial fossa was undertaken. The objectives were to evaluate radiological characteristics of the anterior inferior cerebellar artery (AICA) within the cerebellopontine angle (CPA) and the internal auditory canal (IAC), and to correlate these characteristics with ipsilateral auditory symptoms. Three hundred and thirty-two consecutive adult patients who presented with unilateral auditory symptoms were studied. All patients were referred by the Department of Otolaryngology at City Hospital, Birmingham, from October 1999 to October 2001. Magnetic resonance imaging (MRI) with three-dimensional Fourier Transformation Constructive Interference in Steady State (3D FT-CISS) was the imaging strategy used to investigate each patient. Six hundred and sixty-four sides were studied and the AICA loop was identified in all patients. Using a simple anatomical classification to type the loops: there were 412 type I loops (within the CPA), 202 type II loops (at the porus acousticus, extending up to 50% of IAC) and 50 type III loops (extending beyond 50% of IAC). There was a statistically significant association with unilateral hearing loss and type II and III AICA loops (P = 0.016 and P = 0.006 respectively). An association between the presence of a large diameter vascular loop in the CPA and unilateral auditory symptoms was not found to be significant (P > 0.05).
Background and purposeThe Pipeline Embolization Device (PED) has become a routine first-line option for treatment of intracranial aneurysms (IAs). We assessed the early safety and technical success of a new version of PED, Pipeline Flex Embolization Device with Shield Technology (Pipeline Shield), which has the same design and configuration but has been modified to include a surface synthetic biocompatible polymer.Materials and methodsThe Pipeline Flex Embolization Device with Shield Technology (PFLEX) study is a prospective, single-arm, multicenter study for the treatment of unruptured IAs using Pipeline Shield. The primary study endpoints included the occurrence of major stroke in the territory supplied by the treated artery or neurologic death at 1 year post-procedure. Secondary endpoints included the rate of Pipeline Shield-related or procedure-related serious or non-serious adverse events. Analyses were conducted to evaluate early safety findings in the 30-day post-procedure period as well as technical procedural success outcomes.ResultsFifty patients with 50 unruptured target IAs were enrolled. Mean aneurysm diameter was 8.82±6.15 mm. Thirty-eight aneurysms (76%) were small (<10 mm). Device deployment was technically successful with 98% of devices. Complete wall apposition was achieved immediately post-procedure in 48 cases (96%). No major strokes or neurologic deaths were reported in the 30-day post-procedure period.ConclusionsThe results of this first experience with the new Pipeline Flex corroborate the early safety of the device. Mid-term and long-term follow-up examinations will provide data on safety outcomes at the 6-month and 1-year follow-up periods. Clinical trial registrationNCT02390037.
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