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Neurointervention

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https://www.readbyqxmd.com/read/28955516/dementia-and-parkinsonism-a-rare-presentation-of-intracranial-dural-arteriovenous-fistulae
#1
Manoj Gopinath, Chinmay Nagesh, K Santhosh, E R Jayadevan
Intracranial dural arteriovenous fistulae (DAVF) are acquired fistulous communications between dural arterial branches and dural venous sinuses or cortical veins with the nidus located within the leaflets of the duramater. Dementia and Parkinsonism are amongst the rarest of clinical presentations in DAVFs and are important to diagnose early, being treatable with timely intervention. We present an interesting case of a patient who presented with rapidly progressive dementia and features of parkinsonism who was diagnosed to have extensive DAVF and made remarkable recovery after embolization of the fistulae...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955515/an-unusual-case-of-bilateral-meralgia-paresthetica-following-femoral-cannulations
#2
Seong-Il Oh, Eung Gyu Kim, Sang Jin Kim
Meralgia paresthetica (MP) is a sensory mononeuropathy of the lateral femoral cutaneous nerve (LFCN). MP has rarely been reported after a femoral intervention approach. We report a case of bilateral meralgia paresthetica following bilateral femoral cannulation. A 64-year-old male received cardiac catheterization and treatment via a bilateral femoral vein. After cardiac catheterization, the patient presented with paresthesia in the anterolateral aspect of the bilateral thigh. After performing nerve conduction studies and electromyography, he was diagnosed as MP...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955514/improving-forward-infusion-pressure-during-brain-tumor-embolization-with-the-double-catheter-and-coil-technique
#3
Sam Dayawansa, Sneha Konda, Walter S Lesley, Patrick T Noonan, Jason H Huang
Endovascular embolization or embosurgery of brain tumors can be used to reduce neoplasm vascularity prior to surgical resection. Two challenges with embosurgery relate to insufficient perfusion pressure into the tumor and inadvertent escape of infused agents into parenchymal branches of the adjacent brain. This report describes a multi-catheter and coil technique to improve tumor perfusion and prevent reflux into normal branches.
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955513/visualization-of-soft-tissue-venous-malformations-of-head-and-neck-with-4d-flow-magnetic-resonance-imaging
#4
Ji Ye Lee, Dae Chul Suh
Evaluation of hemodynamics in venous malformation (VM) in the head and neck area is done by direct puncture venography before alcohol sclerotherapy, but it is difficult due to a variable degree of filling in from the artery and filling out into the draining vein. We present our preliminary experience of 4D MRI to evaluate VM hemodynamics. Four patients with venous malformation in the maxillofacial area underwent both 4D MRI and direct puncture venography before alcohol sclerotherapy. To find out appropriate velocity encoding (VENC) for VM, we applied 5-50 cm/sec VENC...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955512/effectiveness-of-preradiosurgical-embolization-with-nbca-for-arteriovenous-malformations-retrospective-outcome-analysis-in-a-japanese-registry-of-73-patients-j-real-study
#5
Shigeru Miyachi, Takashi Izumi, Tetsu Satow, Kittipong Srivatanakul, Yasushi Matsumoto, Tomoaki Terada, Yuji Matsumaru, Hiro Kiyosue
PURPOSE: Recent reports have posed doubts about the effect of preradiosurgical embolization in brain arteriovenous malformation (AVM) because it makes the planning of stereotactic radiosurgery (SRS) difficult and has the risk of recanalization out of the target. We investigated whether the performance and quality of embolization may influence the success of SRS based on a retrospective case cohort study. MATERIALS AND METHODS: Seventy-three patients who underwent embolization followed by SRS between 2003 and 2012 in eight institutes with neurointerventionists were considered...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955511/optimal-guiding-catheter-length-for-endovascular-coiling-of-intracranial-aneurysms-in-anterior-circulation-in-era-of-flourishing-distal-access-system
#6
Zhen Yu Jia, Sang Hun Lee, Young Eun Kim, Joon Ho Choi, Sun Moon Hwang, Ga Young Lee, Jin Ho Youn, Deok Hee Lee
PURPOSE: To determine the minimum required guiding catheter length for embolization of various intracranial aneurysms in anterior circulation and to analyze the effect of various patient factors on the required catheter length and potential interaction with its stability. MATERIALS AND METHODS: From December 2016 to March 2017, 90 patients with 93 anterior circulation aneurysms were enrolled. Three types of guiding catheters (Envoy, Envoy DA, and Envoy DA XB; Codman Neurovascular, Raynham, MA, USA) were used...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955510/usefulness-of-the-pipeline-embolic-device-for-large-and-giant-carotid-cavernous-aneurysms
#7
Shigeru Miyachi, Ryo Hiramatsu, Hiroyuki Ohnishi, Ryokichi Yagi, Toshihiko Kuroiwa
PURPOSE: Conventional coil embolization for large carotid cavernous aneurysms (CCAs) has limited utility due to its inability to prevent recurrences and reduce mass effect. Trapping of the parent artery may have a risk of ischemic complications due to intracranial perfusion disorders. We successfully treated 24 patients with large CCAs using a flow diverter (Pipelineā„¢ embolic device: PED), and this report discusses the safety and efficacy of this method. MATERIALS AND METHODS: Twenty four patients (23 females, mean age 71...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955509/the-annual-trends-between-neurointerventional-and-neurosurgical-procedures-in-korea-analysis-using-hira-data-from-2010-to-2016
#8
Sang Hyun Suh
PURPOSE: The purpose of this study was to evaluate the annual trend for several neurosurgical and neurointerventional procedures (NIPs) in Korea between 2010 and 2016 by using medical claim data. MATERIALS AND METHODS: All data during the recent 7 years were collected from Bigdata Hub provided by the Health Insurance Review & Assessment Service (HIRA). Using several codes for medical practice, we estimated the number of in-patients for each practice and calculated the annual variation of each procedure...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955508/mobile-real-time-tracking-of-acute-stroke-patients-and-instant-secure-inter-team-communication-the-join-app
#9
Stephan A Munich, Lee A Tan, Danilo M Nogueira, Kiffon M Keigher, Michael Chen, R Webster Crowley, James J Conners, Demetrius K Lopes
PURPOSE: The primary correlate to survival and preservation of neurologic function in patients suffering from an acute ischemic stroke is time from symptom onset to initiation of therapy and reperfusion. Communication and coordination among members of the stroke team are essential to maximizing efficiency and subsequently early reperfusion. In this work, we aim to describe our preliminary experience using the Join mobile application as a means to improve interdisciplinary team communication and efficiency...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28955507/a-meta-analysis-of-observational-evidence-for-the-use-of-endovascular-thrombectomy-in-proximal-occlusive-stroke-beyond-6-hours-in-patients-with-limited-core-infarct
#10
James Wareham, Kevin Phan, Shelley Renowden, Alex M Mortimer
PURPOSE: The safety and efficacy of endovascular thrombectomy (EVT) for patients with proximal occlusive stroke presenting beyond 6 hours and selected on the basis of favorable neuroimaging remains unclear. MATERIALS AND METHODS: A systematic search was performed from four electronic databases from their inception to Jan 2017. A meta-analysis of outcomes from studies with patients treated beyond 6 hours was compared to those treated within the established 6 hour therapeutic window in randomized trials, selected using conventional imaging methods with CT/CT angiography...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28316872/transdural-segment-of-the-radicular-vein-in-spinal-dural-arteriovenous-fistula
#11
Su Hee Cho, Dae Chul Suh
No abstract text is available yet for this article.
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316871/cortical-versus-pial-venous-drainage-in-dural-arteriovenous-fistula
#12
Sang Hun Lee, Dae Chul Suh
No abstract text is available yet for this article.
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316870/dural-arteriovenous-fistula-manifested-as-rapid-progressive-dementia-successfully-treated-by-endovascular-embolization-only
#13
Heewon Hwang, Yun Kyung La, Min Seok Baek, Kyoungwon Baik, Sang Hyun Suh, Won-Joo Kim
A 43-year-old male presented with daytime sleepiness at work and indifferent behavior like never before. Two weeks prior to hospital admission, he had episodic memory loss with well preserved remote memory. Brain MRI showed a dural arteriovenous fistula (DAVF) in the right lateral transverse sinus with a bilateral thalamic venous infarction. Cerebral angiography confirmed a right transverse sigmoid dural arteriovenous fistula with a feeding artery of the right occipital artery and left posterior meningeal artery...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316869/forced-arterial-suction-thrombectomy-using-distal-access-catheter-in-acute-ischemic-stroke
#14
Ho-Cheol Lee, Dong-Hun Kang, Yang-Ha Hwang, Yong-Sun Kim, Yong-Won Kim
Historical innovations in mechanical thrombectomy devices and strategies for ischemic stroke have resulted in improved angiographic outcomes and better clinical outcomes. Various devices have been used, but the two most common approaches are aspiration thrombectomy and stent-retrieval thrombectomy. Aspiration thrombectomy has advanced from the traditional Penumbra system to forced arterial suction thrombectomy and a direct aspiration first-pass technique. Newer generation aspiration catheters with flexible distal tips and a larger bore have demonstrated faster and better recanalization relative to older devices...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316868/a-case-of-ruptured-blood-blister-like-aneurysm-treated-with-pipeline-embolization-device-clinical-significance-of-fetal-type-posterior-communicating-artery
#15
Ki-Su Park, Dong-Hun Kang, Won-Soo Son, Jaechan Park, Young-Sun Kim, Byung Moon Kim
Blood-blister like aneurysms (BBAs) are challenging lesions because of their wide fragile neck. Flow-diverting stents (FDSs), such as the Pipeline Embolization Device (PED), have been applied to treat BBAs less amenable to more established techniques of treatment. However, the use of FDSs, including the PED, in acute subarachnoid hemorrhage (SAH) still remains controversial. We report a case of aneurysm regrowth following PED application for a ruptured BBA that overlapped the origin of the dominant posterior communicating artery (PCoA), which was successfully treated after coil trapping of the origin of the fetal-type PCoA...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316867/bench-top-comparison-of-physical-properties-of-4-commercially-available-self-expanding-intracranial-stents
#16
Su-Hee Cho, Won-Il Jo, Ye-Eun Jo, Ku Hyun Yang, Jung Cheol Park, Deok Hee Lee
PURPOSE: To better understand the performance of four commercially available neurovascular stents in intracranial aneurysm embolization, the stents were compared in terms of their basic morphological and mechanical properties. MATERIALS AND METHODS: Four different types of stents that are currently being used for cerebral aneurysm embolization were prepared (two stents per type). Two were laser-cut stents (Neuroform and Enterprise) and two were braided from a single nitinol wire (LEO and LVIS stents)...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316866/alberta-stroke-program-early-ct-score-in-the-prognostication-after-endovascular-treatment-for-ischemic-stroke-a-meta-analysis
#17
Chang-Woo Ryu, Hee Shup Shin, Soonchan Park, Sang Hyun Suh, Jun Seok Koh, Hye-Yeon Choi
PURPOSE: The Alberta Stroke Program Early CT Score (ASPECTS) was devised to quantify the extent of early ischemic changes in the middle cerebral artery territory on brain CT. We performed a systematic review and meta-analysis of studies that presented clinical outcomes and baseline ASPECTS in ischemic stroke patients managed with endovascular methods to validate the use of ASPECTS for risk prognostication. MATERIALS AND METHODS: We searched the MEDLINE, EMBASE, and Cochran databases for observational or interventional studies that reported clinical outcomes and baseline ASPECTS in ischemic stroke patients treated with endovascular methods...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316865/treatment-of-intracranial-aneurysms-with-flow-re-direction-endoluminal-device-a-single-centre-experience-with-short-term-follow-up-results
#18
Neeraj Ramesh Mahboobani, Wing Ho Chong, Samuel Siu Kei Lam, Jimmy Chi Wai Siu, Chong Boon Tan, Yiu Chung Wong
PURPOSE: A flow diverter (FD) is an effective treatment option for intracranial aneurysms. The Flow Re-direction Endoluminal Device (FRED) is a relatively new flow diverter with a unique dual-layer design. We report our experience and short-term results with the FRED. MATERIALS AND METHODS: We did a retrospective review of all consecutive cases in which the FRED was used to treat intracranial aneurysms at a single institution from March 2014 till December 2015. Clinical parameters, aneurysm characteristics, technical results and short-term outcomes were reviewed...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316864/in-vitro-quantification-of-the-radiopacity-of-onyx-during-embolization
#19
Yuan Yuan Jiang, Ye-Eun Jo, Jung Min Woo, Ok Kyun Lim, Changmo Hwang, Jun Young Maeng, Jieun Kim, Namkug Kim, Deok Hee Lee
PURPOSE: Onyx has been successfully applied in the treatment of various neurovascular lesions. However, some experience is required to get accustomed to its unpredictable fluoroscopic visibility during injection. This in vitro study aimed to evaluate the characteristics of radiopacity change in a simulated embolization procedure. MATERIALS AND METHODS: Using a bench-top Onyx injection experiment simulating a typical brain arteriovenous malformation embolization, nine cycles of casting modes (continuous injection) and plugging modes (injection with intermittent pauses) were performed...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28316863/summary-of-12th-asian-australasian-federation-of-interventional-and-therapeutic-neuroradiology-aafitn-2016
#20
EDITORIAL
Prijo Sidipratomo, Cindy Sadikin
No abstract text is available yet for this article.
March 2017: Neurointervention
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