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Intracranial venous sinus stenosis

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https://www.readbyqxmd.com/read/28560487/effect-of-venous-stenting-on-intracranial-pressure-in-idiopathic-intracranial-hypertension
#1
Samir A Matloob, Ahmed K Toma, Simon D Thompson, Chee L Gan, Fergus Robertson, Lewis Thorne, Laurence D Watkins
BACKGROUND: Idiopathic intracranial hypertension (IIH) is characterised by an increased intracranial pressure (ICP) in the absence of any central nervous system disease or structural abnormality and by normal CSF composition. Management becomes complicated once surgical intervention is required. Venous sinus stenosis has been suggested as a possible aetiology for IIH. Venous sinus stenting has emerged as a possible interventional option. Evidence for venous sinus stenting is based on elimination of the venous pressure gradient and clinical response...
May 31, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28487359/venous-sinus-stenting-shortens-the-duration-of-medical-therapy-for-increased-intracranial-pressure-secondary-to-venous-sinus-stenosis
#2
Tarek A Shazly, Ashutosh P Jadhav, Amin Aghaebrahim, Andrew F Ducruet, Brian T Jankowitz, Tudor G Jovin, Gabrielle R Bonhomme
INTRODUCTION: Medical treatment, cerebrospinal fluid (CSF) shunting, and optic nerve sheath fenestration are standard treatments for increased intracranial pressure (ICP) in patients with idiopathic intracranial hypertension (IIH). Venous sinus stenting provides a novel alternative surgical treatment in cases of venous sinus stenosis with elevated ICP. METHODS: 12 consecutive subjects with papilledema, increased ICP, and radiological signs of dural sinus stenosis underwent cerebral venography and manometry...
May 9, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28431144/effect-of-body-mass-index-on-venous-sinus-pressures-in-idiopathic-intracranial-hypertension-patients-before-and-after-endovascular-stenting
#3
Daniel M S Raper, Dale Ding, Thomas J Buell, R Webster Crowley, Robert M Starke, Kenneth C Liu
BACKGROUND: Elevated body mass index (BMI) has been correlated with worse outcomes after treatment for idiopathic intracranial hypertension (IIH). Venous sinus stenting (VSS) has emerged as a safe and effective treatment for a subset of patients with IIH and evidence of venous sinus stenosis. However, the association between BMI and the efficacy of VSS remains poorly characterized. OBJECTIVE: To determine, in a retrospective cohort study, the effect of BMI on preoperative mean intracranial venous pressure (MVP) and post-VSS outcomes...
April 20, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28360352/intracranial-venous-pressures-under-conscious-sedation-and-general-anesthesia
#4
Daniel M S Raper, Thomas J Buell, Ching-Jen Chen, Dale Ding, Robert M Starke, Kenneth C Liu
INTRODUCTION: Venous outflow obstruction has been implicated in the pathophysiology of a subset of patients with idiopathic intracranial hypertension (IIH), and venous sinus stenting (VSS) has emerged as an effective treatment. However, the effect of anesthesia on venous sinus pressure measurements is unpredictable. A more thorough understanding of the effect of the level of anesthesia on intracranial venous pressures might help to better define patients who might benefit most from stent placement...
March 30, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28337892/idiopathic-intracranial-hypertension-in-a-paediatric-population-a-retrospective-observational-study-on-epidemiology-symptoms-and-treatment
#5
M Barbagallo, G Vitaliti, F Greco, P Pavone, N Matin, G Panta, R Lubrano, R Falsaperla
Idiopathic intracranial hypertension (IIH) is a disorder of unknown origin, which is characterized by elevated intracranial pressure (ICP) without underlying etiological evidence of neurological disease. The purpose of the current study was to evaluate epidemiological features, clinical presentation, diagnostic findings and treatment of sixteen children (7 males and 9 females) with IIH. Medical records of the patients were obtained from the University Paediatric Hospital of Catania, Italy. Clinical features, investigations and treatment approaches were retrieved...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28304207/dural-venous-sinus-stenting-for-medically-and-surgically-refractory-idiopathic-intracranial-hypertension
#6
Sudhakar R Satti, Lakshmi Leishangthem, Alejandro Spiotta, M Imran Chaudry
Background Idiopathic intracranial hypertension (IIH) is a syndrome defined by elevated intracranial hypertension without radiographic evidence of a mass lesion in the brain. Dural venous sinus stenosis has been increasingly recognized as a treatable cause, and dural venous sinus stenting (DVSS) is increasingly performed. Methods A 5 year single-center retrospective analysis of consecutive patients undergoing DVSS for medically refractory IIH. Results There were 43 patients with a mean imaging follow-up of 6...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28255904/endovascular-treatment-of-idiopathic-intracranial-hypertension-retrospective-analysis-of-immediate-and-long-term-results-in-51-patients
#7
M Aguilar-Pérez, R Martinez-Moreno, W Kurre, C Wendl, H Bäzner, O Ganslandt, R Unsöld, H Henkes
PURPOSE: Idiopathic intracranial hypertension (IIH) is a disorder of increased intracranial pressure in the absence of any known causative factor. Sinus stenosis is common in these patients. Stenting of stenotic dural sinuses has gained popularity as a treatment option, since these stenoses may contribute to an obstruction of the venous return, and, thereby may contribute to IIH via an increase in venous sinus pressure. We evaluated the safety and efficacy of endovascular treatment in IIH with venous sinus stenosis...
March 2, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28195748/imaging-features-of-idiopathic-intracranial-hypertension-in-children
#8
Alexander J P W Hartmann, Bruno P Soares, Beau B Bruce, Amit M Saindane, Nancy J Newman, Valérie Biousse, Jason H Peragallo
Magnetic resonance imaging (MRI) signs of elevated intracranial pressure and idiopathic intracranial hypertension have been well characterized in adults but not in children. The MRIs of 50 children with idiopathic intracranial hypertension and 46 adults with idiopathic intracranial hypertension were reviewed for optic nerve head protrusion, optic nerve head enhancement, posterior scleral flattening, increased perioptic cerebrospinal fluid, optic nerve tortuosity, empty or partially empty sella, tonsillar herniation, enlargement of Meckel's cave meningoceles, and transverse venous sinus stenosis(TSS)...
January 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28073989/patency-of-the-vein-of-labb%C3%A3-after-venous-stenting-of-the-transverse-and-sigmoid-sinuses
#9
Daniel M S Raper, Dale Ding, Ching-Jen Chen, Thomas J Buell, R Webster Crowley, Kenneth C Liu
BACKGROUND: Venous sinus stenting is an emerging treatment for patients with idiopathic intracranial hypertension and evidence of venous stenosis. Stents placed across the transverse and sigmoid sinuses often cover the vein of Labbé (VOL), a major anastomotic vein draining the cerebral hemisphere. The patency of the VOL after stenting and its clinical implications are poorly understood. METHODS: A retrospective analysis was performed of a prospectively collected database of patients undergoing venous sinus stenting...
January 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28009240/venous-sinus-stenting-for-reduction-of-intracranial-pressure-in-iih-a-prospective-pilot-study
#10
Kenneth C Liu, Robert M Starke, Christopher R Durst, Tony R Wang, Dale Ding, R Webster Crowley, Steven A Newman
OBJECTIVE Idiopathic intracranial hypertension (IIH) may cause blindness due to elevated intracranial pressure (ICP). Venous sinus stenosis has been identified in select patients, leading to stenting as a potential treatment, but its effects on global ICP have not been completely defined. The purpose of this pilot study was to assess the effects of venous sinus stenting on ICP in a small group of patients with IIH. METHODS Ten patients for whom medical therapy had failed were prospectively followed. Ophthalmological examinations were assessed, and patients with venous sinus stenosis on MR angiography proceeded to catheter angiography, venography with assessment of pressure gradient, and ICP monitoring...
December 23, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27894675/the-manifestation-of-vortical-and-secondary-flow-in-the-cerebral-venous-outflow-tract-an-in-vivo-mr-velocimetry-study
#11
Sarah Kefayati, Matthew Amans, Farshid Faraji, Megan Ballweber, Evan Kao, Sinyeob Ahn, Karl Meisel, Van Halbach, David Saloner
Aberrations in flow in the cerebral venous outflow tract (CVOT) have been implicated as the cause of several pathologic conditions including idiopathic intracranial hypertension (IIH), multiple sclerosis (MS), and pulsatile tinnitus (PT). The advent of 4D flow magnetic resonance imaging (4D-flow MRI) has recently allowed researchers to evaluate blood flow patterns in the arterial structures with great success. We utilized similar imaging techniques and found several distinct flow characteristics in the CVOT of subjects with and without lumenal irregularities...
January 4, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/27886896/venous-sinus-stenting-for-idiopathic-intracranial-hypertension-where-are-we-now
#12
REVIEW
Marc J Dinkin, Athos Patsalides
Idiopathic intracranial hypertension causes headache, papilledema and visual field loss, typically in obese women of childbearing age. Its anatomical underpinnings remain unclear, but a stenosis at the junction of the transverse and sigmoid sinuses has been recognized in the majority of patients through venography. The stenosis may result from intrinsic dural sinus anatomy or extrinsic compression by increased intracranial pressure, but in either case, its stenting has been shown to lead to an improvement in symptoms of intracranial hypertension and papilledema in multiple retrospective, non-controlled studies...
February 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/27768690/resolution-of-pulsatile-tinnitus-after-venous-sinus-stenting-in-patients-with-idiopathic-intracranial-hypertension
#13
Srikanth Boddu, Marc Dinkin, Maria Suurna, Kelly Hannsgen, Xem Bui, Athos Patsalides
OBJECTIVE: Evaluate the role of venous sinus stenting in the treatment of pulsatile tinnitus among patients with Idiopathic Intracranial Hypertension (IIH) and significant venous sinus stenosis. SUBJECTS AND METHODS: A written informed consent approved by the Weill Cornell institutional review board was signed and obtained from the study participants. Thirty-seven consecutive patients with IIH and venous sinus stenosis who were treated with venous sinus stenting between Jan...
2016: PloS One
https://www.readbyqxmd.com/read/27765737/quantifying-the-cerebral-hemodynamics-of-dural-arteriovenous-fistula-in-transverse-sigmoid-sinus-complicated-by-sinus-stenosis-a-retrospective-cohort-study
#14
W-Y Guo, C-C J Lee, C-J Lin, H-C Yang, H-M Wu, C-C Wu, W-Y Chung, K-D Liu
BACKGROUND AND PURPOSE: Sinus stenosis occasionally occurs in dural arteriovenous fistulas. Sinus stenosis impedes venous outflow and aggravates intracranial hypertension by reversing cortical venous drainage. This study aimed to analyze the likelihood of sinus stenosis and its impact on cerebral hemodynamics of various types of dural arteriovenous fistulas. MATERIALS AND METHODS: Forty-three cases of dural arteriovenous fistula in the transverse-sigmoid sinus were reviewed and divided into 3 groups: Cognard type I, type IIa, and types with cortical venous drainage...
January 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27567578/cavernous-sinus-dural-arteriovenous-fistula-presenting-with-intracerebral-hemorrhage-associated-with-chronological-angiographic-demonstration-of-disturbed-leptomeningeal-venous-drainage-as-the-sole-outflow-route
#15
Satoru Tanioka, Yu Sato, Mai Nampei, Kazuhiko Tsuda, Shigehiko Niwa, Hidenori Suzuki
BACKGROUND: Cavernous sinus (CS) dural arteriovenous fistula (DAVF) rarely causes intracranial hemorrhage. The authors describe a case of CS DAVF presenting with intracranial hemorrhage, focusing on the findings in digital subtraction angiography (DSA) performed before and after the onset. CASE DESCRIPTION: An 80-year-old woman, diagnosed as Borden type 3 CS DAVF on DSA 2 years before, presented with subarachnoid hemorrhage and right temporal subcortical hemorrhage...
November 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27556959/venous-sinus-stenting-in-idiopathic-intracranial-hypertension-results-of-a-prospective-trial
#16
Marc J Dinkin, Athos Patsalides
BACKGROUND: Our goal was to evaluate the safety and efficacy of stenting of venous sinus stenosis (VSS) in patients with medically-refractory, medically-intolerant or fulminant idiopathic intracranial hypertension (IIH) in a prospective, observational study. METHODS: Thirteen patients with IIH who were refractory or intolerant to medical therapy or who presented with fulminant visual field (VF) loss underwent stenting of VSS at the transverse-sinus sigmoid sinus junction, using a Precise Pro carotid stent system (Cordis)...
June 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27496529/new-frontiers-in-venous-sinus-stenting-illustrative-cases
#17
Bradley A Gross, Felipe C Albuquerque, Karam Moon, Cameron G McDougall
Idiopathic intracranial hypertension (IIH) occurs rarely, with severe patients recalcitrant to pharmacologic management often requiring cerebrospinal fluid diversion. We report two patients with variant IIH successfully treated with venous sinus stenting: 1) A 65-year-old man with severe vision loss, papilledema, and cognitive decline treated with four telescoped stents across a long, severely stenotic transverse-sigmoid system, and 2) a 58-year-old woman with headaches, vision loss, and papilledema secondary to a jugular paraganglioma causing severe jugular bulb stenosis that required contralateral venous sinus stenting...
November 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27471977/imaging-of-intracranial-pressure-disorders
#18
John Holbrook, Amit M Saindane
Intracranial pressure (ICP) is the pressure inside the bony calvarium and can be affected by a variety of processes, such as intracranial masses and edema, obstruction or leakage of cerebrospinal fluid, and obstruction of venous outflow. This review focuses on the imaging of 2 important but less well understood ICP disorders: idiopathic intracranial hypertension and spontaneous intracranial hypotension. Both of these ICP disorders have salient imaging findings that are important to recognize to help prevent their misdiagnosis from other common neurological disorders...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/27199383/venous-sinus-stenting-in-patients-without-idiopathic-intracranial-hypertension
#19
MULTICENTER STUDY
Michael R Levitt, Felipe C Albuquerque, Bradley A Gross, Karam Moon, Ashutosh P Jadhav, Andrew F Ducruet, R Webster Crowley
BACKGROUND: Venous sinus stenting is an effective treatment for patients with idiopathic intracranial hypertension (IIH) and venous sinus stenosis. OBJECTIVE: To determine the usefulness of venous sinus stenting in the treatment of patients with symptomatic venous sinus stenosis without a diagnosis of IIH. METHODS: We performed a retrospective review of a prospective multicenter database of patients undergoing venous sinus stenting between January 2008 and February 2016...
May 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27197986/computational-modeling-of-venous-sinus-stenosis-in-idiopathic-intracranial-hypertension
#20
M R Levitt, P M McGah, K Moon, F C Albuquerque, C G McDougall, M Y S Kalani, L J Kim, A Aliseda
BACKGROUND AND PURPOSE: Idiopathic intracranial hypertension has been associated with dural venous sinus stenosis in some patients, but the hemodynamic environment of the dural venous sinuses has not been quantitatively described. Here, we present the first such computational fluid dynamics model by using patient-specific blood pressure measurements. MATERIALS AND METHODS: Six patients with idiopathic intracranial hypertension and at least 1 stenosis or atresia at the transverse/sigmoid sinus junction underwent MR venography followed by cerebral venography and manometry throughout the dural venous sinuses...
May 19, 2016: AJNR. American Journal of Neuroradiology
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