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https://www.readbyqxmd.com/read/27908450/the-learning-curve-effect-on-embolization-of-cerebral-dural-arteriovenous-fistula-single-center-experience-in-48%C3%A2-consecutive-patients
#1
D Le Foll, H Raoult, J C Ferré, F Naudet, D Trystram, J Y Gauvrit
BACKGROUND: Cerebral dural arteriovenous fistulas (DAVFs) are rare intracranial vascular lesions but can cause significant morbidity and mortality. OBJECTIVES: To analyze the effect of the center's experience on DAVF embolization efficacy and safety. METHODS: From May 2008 to October 2014, 57 embolization procedures were attempted on 48 patients (37 men and 11 women; median age: 63.9 years) for DAVF in a single center. DAVF presented with cortical venous reflux in 44/48 cases (91...
November 28, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27884927/novel-approaches-to-access-and-treatment-of-cavernous-sinus-dural-arteriovenous-fistula-cs-davf-case-series-and-review-of-the-literature
#2
Jason Wenderoth
Caroticocavernous fistula or cavernous sinus dural arteriovenous fistula (CS-DAVF) has presented various treatment challenges over many years. This paper outlines these challenges in a review of the literature, and attempts to address them by analyzing the anatomical and hemodynamic characteristics of 32 consecutive patients with CS-DAVF treated between 2007 and 2016, in doing so proposing novel strategies for safe access and treatment of CS-DAVF.
November 24, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27884926/proposal-for-an-improved-classification-system-for-cavernous-sinus-dural-arteriovenous-fistula-cs-davf
#3
Jason Wenderoth
No abstract text is available yet for this article.
November 24, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27884880/first-pass-contrast-enhanced-mra-for-pretherapeutic-diagnosis-of-spinal-epidural-arteriovenous-fistulas-with-intradural-venous-reflux
#4
S Mathur, S P Symons, T J Huynh, P Muthusami, W Montanera, A Bharatha
BACKGROUND AND PURPOSE: Spinal epidural AVFs are rare spinal vascular malformations. When there is associated intradural venous reflux, they may mimic the more common spinal dural AVFs. Correct diagnosis and localization before conventional angiography is beneficial to facilitate treatment. We hypothesize that first-pass contrast-enhanced MRA can diagnose and localize spinal epidural AVFs with intradural venous reflux and distinguish them from other spinal AVFs. MATERIALS AND METHODS: Forty-two consecutive patients with a clinical and/or radiologic suspicion of spinal AVF underwent MR imaging, first-pass contrast-enhanced MRA, and DSA at a single institute (2000-2015)...
November 24, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27884878/comparison-of-3-different-types-of-spinal-arteriovenous-shunts-below-the-conus-in-clinical-presentation-radiologic-findings-and-outcomes
#5
T Hong, J E Park, F Ling, K G terBrugge, M Tymianski, H Q Zhang, T Krings
BACKGROUND AND PURPOSE: Spinal arteriovenous shunts below the conus constitute 3 types of lesions, which have previously been mainly described in case reports, given their rarity, and are sometimes misdiagnosed. The purpose of this study was to describe the features of each type and compare these types as to epidemiologic features, clinical and radiologic presentations, treatment, and outcomes in a consecutive series of 48 cases. MATERIALS AND METHODS: The prospectively collected data bases of 2 referral centers for spinal vascular lesions were retrospectively reviewed...
November 24, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27867122/resolution-of-trigeminal-neuralgia-after-transvenous-embolization-of-a-cavernous-sinus-dural-arteriovenous-fistula
#6
Kenji Fukutome, Ichiro Nakagawa, Hun Soo Park, Takeshi Wada, Yasushi Motoyama, Kimihiko Kichikawa, Hiroyuki Nakase
A rare case of cavernous sinus dural arteriovenous fistula (CSDAVF) in a patient with trigeminal neuralgia (TN) that resolved immediately after transvenous embolization (TVE) is described. A 75-year-old woman presented with continuous facial pain. On time-of-flight magnetic resonance angiography (MRA), a CSDAVF was suspected, and digital subtraction angiography (DSA) showed a CSDAVF. The TN completely resolved immediately after TVE, with no recurrence. Follow-up MRA showed complete obliteration of the fistula 13 months after TVE...
November 17, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27847727/acute-paraplegia-after-lumbar-steroid-injection-in-patients-with-spinal-dural-arteriovenous-fistulas-case-reports
#7
Sunwoong Kim, Yuseong Choi, Jinyoung Park, Duk Hyun Sung
Spinal dural arteriovenous fistulas (SDAVFs) are the most common type of spinal vascular malformations. However, SDAVFs are still underdiagnosed entities because their clinical symptoms are usually non-specific, as they include low back pain or radiating pain to the limb. There have been several reports of acute paraplegia after lumbar epidural steroid injections in patients with SDAVFs. We present 4 patients with SDAVFs who received lumbar steroid injection. Among the 4 cases, acute paraplegia developed in 2 cases that received a larger volume of injectate than the other cases...
October 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27842984/usefulness-of-3-tesla-magnetic-resonance-arterial-spin-labeled-imaging-for-diagnosis-of-cranial-dural-arteriovenous-fistula
#8
Nobuaki Yamamoto, Junichiro Satomi, Yuki Yamamoto, Yuishin Izumi, Shinji Nagahiro, Ryuji Kaji
BACKGROUND AND PURPOSE: Conventional digital subtraction angiography (DSA) has been a useful tool for the diagnosis of cranial dural arteriovenous fistula (cDAVF). In most patients with cDAVF, blood flow through the arteriovenous shunt was pooled at diseased veins and/or sinuses. Therefore, we speculated that pooled blood at diseased veins in patients with cDAVF could be detected on arterial spin-labeled imaging (ASL). The purpose of the present study was to investigate the usefulness of ASL to detect cDAVF...
November 10, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27832616/-dural-arteriovenous-fistula-with-acute-visual-loss-manifestation-a-case-report
#9
Masayuki Goto, Wataro Tsuruta, Yusuke Fujiwara, Go Ikeda, Yoshiro Ito, Yoshimi Sugiura, Masanari Shiigai, Yasunobu Nakai, Tetsuya Yamamoto, Akira Matsumura
In this report, we are describing a rare case of dural arteriovenous fistula(DAVF)followed by an isolated symptom of bilateral visual acuity disturbance. The patient was a 67-year-old man suffering from progressive bilateral visual acuity disturbance. Angiography revealed a diffuse arteriovenous fistula in the left transverse-sigmoid sinus affected by severe venous congestion. Visual acuity disturbance is likely to have been caused by increased intracranial pressure(IICP). Venous congestion as well as visual acuity were gradually improved following three transarterial embolizations...
November 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27829838/a-case-of-de-novo-anterior-condylar-dural-arteriovenous-fistula-long-after-curative-transvenous-embolization-of-contralateral-anterior-condylar-arteriovenous-fistula
#10
Shinya Hagiwara, Takeshi Miyazaki, Masahiro Tsuji, Mizuki Kambara, Tsutomu Yoshikane, Hidemasa Nagai, Yasuhiko Akiyama
We report on a 55-year-old man who developed a de novo DAVF in left ACC 5 years after curative transvenous embolization for DAVF in right ACC. Angiography revealed that the de novo lesion demonstrated more aggressive arteriovenous shunt flow than the initial lesion. Successful transvenous embolization was performed for also the second lesion. The authors describe the possible pathophysiological mechanisms and management strategies for this rare occurrence.
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27821474/the-dual-microcatheter-technique-for-transvenous-embolization-of-dural-arteriovenous-fistulae
#11
Isaac Josh Abecassis, John D Nerva, Basavaraj V Ghodke, Laligam N Sekhar, Michael R Levitt, Louis J Kim
BACKGROUND: Dural arteriovenous fistulae (dAVFs) comprise 10-15% of all intracranial arteriovenous malformations. The goal of surgical or endovascular intervention is complete obliteration of the fistulous connection(s). In cases where dAVF venous drainage is separate from normal cortical drainage, transvenous embolization can provide fast and effective fistula obliteration. OBJECTIVE: To describe a new method of efficient transvenous embolization (the 'dual microcatheter technique') for the treatment of dAVFs...
November 7, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27814888/dynamic-contrast-enhanced-magnetic-resonance-angiography-for-the-localization-of-spinal-dural-arteriovenous-fistulas-at-3t
#12
G Zhou, M H Li, C Lu, Y L Yin, Y Q Zhu, X E Wei, H T Lu, Q Q Zheng, W W Gao
OBJECTIVE: This study was undertaken to evaluate the accuracy of dynamic contrast-enhanced magnetic resonance angiography (DCE-MRA) in the precise location and demonstration of fistulous points in spinal dural arteriovenous fistulas (SDAVFs). METHODS: Fifteen patients (14 men, 1 woman; age range: 40-78 years; mean: 55.5 years) harboring SDAVF who underwent preoperative DCE-MRA and spinal digital subtraction angiography (DSA) between January 2012 and January 2015 were evaluated retrospectively...
November 1, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27812001/dural-arteriovenous-fistula-masquerading-as-pulsatile-tinnitus-radiologic-assessment-and-clinical-implications
#13
Yong-Hwi An, Sungjun Han, Minhyung Lee, Jihye Rhee, O-Ki Kwon, Gyojun Hwang, Cheolkyu Jung, Yun Jung Bae, Gwang Seok An, Kyogu Lee, Ja-Won Koo, Jae-Jin Song
Pulsatile tinnitus (PT) is often an initial presenting symptom of dural arteriovenous fistula (dAVF), but it may be overlooked or diagnosed late if not suspected on initial diagnostic work-up. Here, we assess anatomical features, treatment outcomes, and clinical implications of patients with PT due to dAVF. Of 220 patients who were diagnosed with dAVF between 2003 and 2014, 30 (13.6%) presented with only PT as their initial symptom. The transverse-sigmoid sinus (70.0%) was the most common site, followed by the hypoglossal canal (10...
November 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27811132/comparison-of-time-resolved-and-first-pass-contrast-enhanced-mr-angiography-in-pretherapeutic-evaluation-of-spinal-dural-arteriovenous-fistulas
#14
S Mathur, A Bharatha, T J Huynh, R I Aviv, S P Symons
BACKGROUND AND PURPOSE: Different MRA techniques used to evaluate spinal dural arteriovenous fistulas offer unique advantages and limitations with regards to temporal and spatial resolution. The purpose of this study was to compare the efficacy and interobserver agreement of 2 commonly used contrast-enhanced spinal MRA techniques, multiphase time-resolved MRA and single-phase first-pass MRA, in assessment of spinal dural arteriovenous fistulas. MATERIALS AND METHODS: Retrospective review of 15 time-resolved and 31 first-pass MRA studies in patients with clinical suspicion of spinal dural arteriovenous fistula was performed by 2 independent, blinded observers...
November 3, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27806871/neuromyelitis-optica-unmasked-by-a-spinal-dural-arteriovenous-fistula
#15
Brin Freund, Ellen M Mowry, McR, Michael Levy, Scott D Newsome
Neuromyelitis optica spectrum disorder (NMO-SD) and spinal dural arteriovenous fistula (SDAVF) can both cause longitudinally extensive myelopathy. We describe a case of longitudinally extensive myelopathy attributed to a SDAVF. Despite treatment, myelopathy recurred and led to subsequent NMO-SD diagnosis. We consider a possible link between the two disorders which may shed light on the pathophysiology of NMO-SD. To our knowledge, this is the first published case of co-existent NMO-SD and SDAVF leading to myelopathy...
November 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27794514/rapid-recovery-from-paraplegia-in-a-patient-with-foix-alajounine-syndrome
#16
Holger Joswig, Faizal A Haji, Rafael Martinez-Perez, David A Steven, Melfort R Boulton
BACKGROUND: Foix-Alajounine syndrome describes the acute neurological deterioration in the setting of a spinal dural arteriovenous fistula. CASE DESCRIPTION: The following case report on a young patient with an unusual clinical onset of Foix-Alajounine Syndrome coincidentally occurring after his Outpatient Clinic appointment, illustrates how prompt surgical treatment can result in rapid recovery of neurological function despite preoperative paraplegia. CONCLUSIONS: Venous hypertension with subsequent rapid resolution after surgical treatment is the pathophysiological mechanism underlying a dural arteriovenous fistula, in contrast to historical views suggesting these lesions result from irreversible venous thrombosis resulting in necrotic myelopathy...
October 26, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27790406/transvenous-coil-embolization-for-dural-arteriovenous-fistulas-of-the-ophthalmic-sheath-report-of-two-cases-and-review-of-the-literature
#17
Juyoung Hwang, Kyung-Il Jo, Je Young Yeon, Seung-Chyul Hong, Jong-Soo Kim
We present two patients with a dural arteriovenous fistula (dAVF) of the ophthalmic sheath who developed progressive exophthalmos, conjunctival chemosis, and visual loss. These symptoms mimic those of cavernous sinus dAVFs. Dural AVFs of the ophthalmic sheath are extremely rare and their clinical management is controversial. We successfully treated these two patients by transvenous coil embolization. Transvenous embolization appears to be a safe and effective method to treat dAVFs of the ophthalmic sheath.
June 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/27789452/intracranial-arteriovenous-shunting-detection-with-arterial-spin-labeling-and-susceptibility-weighted-imaging-combined
#18
J Hodel, X Leclerc, E Kalsoum, M Zuber, R Tamazyan, M A Benadjaoud, J-P Pruvo, M Piotin, H Baharvahdat, M Zins, R Blanc
BACKGROUND AND PURPOSE: Arterial spin-labeling and susceptibility-weighted imaging are 2 MR imaging techniques that do not require gadolinium. The study aimed to assess the accuracy of arterial spin-labeling and SWI combined for detecting intracranial arteriovenous shunting in comparison with conventional MR imaging. MATERIALS AND METHODS: Ninety-two consecutive patients with a known (n = 24) or suspected arteriovenous shunting (n = 68) underwent digital subtraction angiography and brain MR imaging, including arterial spin-labeling/SWI and conventional angiographic MR imaging (3D TOF, 4D time-resolved, and 3D contrast-enhanced MRA)...
October 27, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27779490/paraplegia-following-lumbar-epidural-steroid-injection-in-a-patient-with-a-spinal-dural-arteriovenous-fistula
#19
Thiru M Annaswamy, Jared Worchel
We report a patient with a previously undiagnosed spinal dural arteriovenous fistula (SDAVF) who became acutely paraplegic following a lumbar epidural steroid injection for lumbar spinal stenosis. Magnetic resonance imaging showed multiple flow voids and serpentine vessels on the cord surface with cord edema extending from T3 through the conus. Spinal angiography confirmed an SDAVF fed by the left lateral sacral artery, which was subsequently endovascularly embolized, and the patient had a partial return of function...
October 22, 2016: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/27771477/unique-venous-drainage-of-a-sphenoid-wing-dural-arteriovenous-fistula-with-ocular-symptoms
#20
Kouichi Misaki, Naoyuki Uchiyama, Masanao Mohri, Yasuhiro Aida, Takehiro Uno, Mitsutoshi Nakada
Dural arteriovenous fistulas (DAVFs) presenting with ocular symptoms, such as exophthalmos and chemosis, are commonly situated in cavernous sinus (CS). DAVFs at the sphenoid wing with a drainage route into the superior orbital vein (SOV) should be considered as one of differential diagnosis of ocular symptoms. A 41-year-old woman presented with progressive left-sided chemosis and proptosis after left pulsating tinnitus that disappeared spontaneously. Cerebral angiography showed that the fistula was situated along the inferior edge of the superior orbital fissure on the greater sphenoid wing and drained solely into the SOV without flowing into the CS that caused ocular symptoms...
October 19, 2016: World Neurosurgery
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