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Venous sinus stenosis

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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
#1
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...
November 15, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27886896/venous-sinus-stenting-for-idiopathic-intracranial-hypertension-where-are-we-now
#2
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/27831483/patency-and-clinical-outcomes-of-a-dedicated-self-expanding-hybrid-oblique-stent-used-in-the-treatment-of-common-iliac-vein-compression
#3
Anna K Stuck, Samuel Kunz, Iris Baumgartner, Nils Kucher
PURPOSE: To investigate the clinical outcomes of a dedicated hybrid oblique nitinol stent that has been specifically designed to treat common iliac vein compression. METHODS: The Bern Venous Stent Registry database was interrogated to identify all patients who had at least 6-month follow-up after treatment with the sinus-Obliquus hybrid stent for common iliac vein compression. The search identified 24 patients (mean age 39±18 years; 20 women) who matched the search criteria...
November 9, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27829971/concurrent-angioplasty-balloon-placement-for-stent-delivery-through-jugular-venous-bulb-for-treating-cerebral-venous-sinus-stenosis-technical-report
#4
Adnan I Qureshi, Asif A Khan, Rachel Capistrant, Mushtaq H Qureshi, Kevin Xie, M Fareed K Suri
OBJECTIVE: To report upon technique of concurrent placement of angioplasty balloon at the internal jugular vein and sigmoid venous sinus junction to facilitate stent delivery in two patients in whom stent delivery past the jugular bulb was not possible. CLINICAL PRESENTATION: A 21-year-old woman and a 41-year-old woman with worsening headaches, visual obscuration or diplopia were treated for pseudotumor cerebri associated with transverse venous stenosis. Both patients had undergone primary angioplasty, which resulted in improvement in clinical symptoms followed by the recurrence of symptoms with restenosis at the site of angioplasty...
October 2016: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/27768690/resolution-of-pulsatile-tinnitus-after-venous-sinus-stenting-in-patients-with-idiopathic-intracranial-hypertension
#5
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
#6
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...
October 20, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27610124/endovascular-management-of-sigmoid-sinus-diverticulum
#7
Srinivasan Paramasivam, Sunil Furtado, Tomoyoshi Shigamatsu, Eric Smouha
Sigmoid sinus diverticulum (SSD) is a rare vascular disorder due to dehiscence of the sigmoid plate. It may be associated with prediverticular venous sinus stenosis (SS) and usually presents as pulsatile tinnitus. The mechanism of development of the SSD and tinnitus from a sinus diverticulum and associated SS is unclear. Previous case reports have suggested that remodeling of the venous system targeting the stenosis, elimination of the diverticulum, or both, have resulted in symptom relief. We present a case of SSD with SS, treated by stenting of the stenosis along with coil embolization of the diverticulum, resulting in complete relief of symptoms...
June 2016: Interventional Neurology
https://www.readbyqxmd.com/read/27593845/endovascular-management-of-iatrogenic-vascular-injury-in-craniocervical-region
#8
Elçin Aydin, Mustafa Gök, Asım Esenkaya, Celal Çinar, İsmail Oran
AIM: We aimed to evaluate iatrogenic vascular injuries in craniocervical region and their endovascular management. MATERIAL AND METHODS: Twenty-one patients (nine women, twelve men) with a mean age of 53.6 (range 16-87 years), who underwent endovascular embolization for iatrogenic vascular injury in craniocervical region between December 2000 and October 2015 were included in this retrospective study. Types of iatrogenic injuries, etiologies that caused these injuries and details of endovascular managements were reported...
July 1, 2016: Turkish Neurosurgery
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
#9
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...
August 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27556959/venous-sinus-stenting-in-idiopathic-intracranial-hypertension-results-of-a-prospective-trial
#10
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)...
August 23, 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27498817/a-dural-arteriovenous-fistula-detected-during-the-chronic-phase-of-cerebral-venous-sinus-thrombosis
#11
Yukiko Suzuki, Yuichiro Inatomi, Toshiro Yonehara
A 47-year-old woman developed a headache and tinnitus in her right ear followed by sudden-onset left hemiparesis. She had no history of trauma or thrombophilia. Arteriography showed an occlusion of the superior sagittal sinus, and a stenosis of the right transverse sinus. She was treated with anticoagulants; thereafter her deficits and sinus thrombosis immediately improved. However, 7 months after the onset, she noticed tinnitus in her left ear. Arteriography showed a dural arteriovenous fistula extending from the left occipital artery to the left transverse and sigmoid sinus, but no recurrence of the cerebral venous sinus thrombosis...
September 29, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27496529/new-frontiers-in-venous-sinus-stenting-illustrative-cases
#12
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/27494822/endoscope-assisted-transsphenoidal-puncture-of-the-cavernous-sinus-for-embolization-of-carotid-cavernous-fistula-in-a-neurosurgical-hybrid-operating-suite
#13
Chien-Lun Tang, Chih-Hsiang Liao, Wen-Hsien Chen, Shih-Chieh Shen, Chung-Hsin Lee, Hsu-Tung Lee, Yuang-Seng Tsuei
Endovascular embolization is the treatment of choice for carotid-cavernous fistulas (CCFs), but failure to catheterize the cavernous sinus may occur as a result of vessel tortuosity, hypoplasia, or stenosis. In addition to conventional transvenous or transarterial routes, alternative approaches should be considered. The authors present a case in which a straightforward route to the CCF was accessed via transsphenoidal puncture of the cavernous sinus in a neurosurgical hybrid operating suite. This 82-year-old man presented with severe chemosis and proptosis of the right eye...
August 5, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27471977/imaging-of-intracranial-pressure-disorders
#14
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...
July 27, 2016: Neurosurgery
https://www.readbyqxmd.com/read/27388469/incidence-and-possible-causes-of-nontraumatic-convexal-subarachnoid-haemorrhage-in-chinese-patients-a-retrospective-review
#15
Haiyan Zhao, Jintao Han, Ming Lu, Yingshuang Zhang, Dongsheng Fan
OBJECTIVE: To explore the incidence and possible underlying pathogenic mechanisms of nontraumatic convexal subarachnoid haemorrhage (cSAH; a rarely reported condition) in a cohort of Chinese patients. METHODS: Medical records from all patients with subarachnoid haemorrhage (SAH) who had been treated at Peking University Third Hospital, China, between January 2010 and December 2014 were retrospectively reviewed to identify cases of cSAH. RESULTS: Of 144 patients with SAH, cSAH was observed in 14 cases (9...
July 7, 2016: Journal of International Medical Research
https://www.readbyqxmd.com/read/27226864/infantile-dural-arteriovenous-fistula-of-the-transverse-sinus-presenting-with-ocular-symptoms-case-reports-and-review-of-literature
#16
Ahmed Elsayed Sultan, Tamer Hassan
Dural arteriovenous fistula (DAVF) of the transverse sinus with ophthalmic manifestations in young children are rare. We reviewed two cases of direct AVF of the transverse sinus with ocular manifestations managed at our institution. The first, a 2.5 years old male child presented with left exophthalmos. Angiography revealed AVF between the occipital artery and the transverse sinus. The second, a 2 years old female child, complained of left exophthalmos. Imaging studies showed bilateral direct AVFs of the transverse sinus with bilateral dysmaturation of the sigmoid sinus...
May 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27199383/venous-sinus-stenting-in-patients-without-idiopathic-intracranial-hypertension
#17
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 19, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27197986/computational-modeling-of-venous-sinus-stenosis-in-idiopathic-intracranial-hypertension
#18
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
https://www.readbyqxmd.com/read/27188326/coincidental-cerebral-venous-thrombosis-and-subarachnoid-haemorrhage-related-to-ruptured-anterior-communicating-artery-aneurysm
#19
Claudia Neubauer, Annette Baumgartner, Irina Mader, Michel Rijntjes, Stephan Meckel
Aneurysmal subarachnoid haemorrhage (SAH) and cerebral venous thrombosis (CVT) are rare cerebrovascular pathologies. Here, we report the extremely rare coincidental presentation of both entities and discuss the likely relationship in aetiology and their optimal management. A female patient presented with headache and progressive neurological deficits. Cranial computed tomography and contrast-enhanced magnetic resonance imaging (MRI)/magnetic resonance angiography (MRA) revealed dural venous sinus thrombosis, left-sided frontal and parietal infarcts, and left middle and anterior cerebral artery stenosis...
August 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27173363/peritherapeutic-hemodynamic-changes-of-carotid-stenting-evaluated-with-quantitative-dsa-in-patients-with-carotid-stenosis
#20
M M H Teng, F-C Chang, C-J Lin, L Chiang, J-S Hong, Y-H Kao
BACKGROUND AND PURPOSE: Quantitative data from DSA have become important tools for understanding hemodynamic changes of intracranial lesions. In this study, we evaluated 8 hemodynamic parameters in patients before and after carotid artery angioplasty. MATERIALS AND METHODS: DSA images of 34 patients with carotid stenosis who underwent angioplasty and stent placement were retrospectively analyzed. Eleven ROIs (M1, M2, A1, A2, the parietal vein, superior sagittal sinus, internal jugular vein, and 4 in the ICA) were selected on color-coded DSA...
May 12, 2016: AJNR. American Journal of Neuroradiology
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