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Neurointervention

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https://www.readbyqxmd.com/read/28316872/transdural-segment-of-the-radicular-vein-in-spinal-dural-arteriovenous-fistula
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
EDITORIAL
Prijo Sidipratomo, Cindy Sadikin
No abstract text is available yet for this article.
March 2017: Neurointervention
https://www.readbyqxmd.com/read/27621951/dual-stent-assisted-coil-embolization-for-fusiform-aneurysm-arising-from-persistent-trigeminal-artery
#11
Gordhan Ajeet, Dickinson John
Aneurysms of the persistent trigeminal artery (PTA) trunk are exceptionally rare and have a high risk for rupture. Dual stent placement through each internal carotid and basilar artery for endovascular coil embolization of a fusiform aneurysm arising from the PTA has not been described in the literature. A 44-year-old female with a history of chronic headache was identified to have a fusiform aneurysm arising from medially coursing adult type, Saltzman type 3 PTA trunk. Sacrifice of the PTA trunk inclusive of the aneurysm was performed with dual stent placement through each basilar and internal carotid artery across their respective junctions with the PTA...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621950/renal-subcapsular-hematoma-after-intravenous-thrombolysis-in-a-patient-with-acute-cerebral-infarction
#12
Yun Kyung La, Ji Hwa Kim, Kyung-Yul Lee
A 74-year-old female with acute cerebral infarction was treated with intravenous recombinant tissue plasminogen activator. Subsequent percutaneous transfemoral angiography and mechanical thrombectomy were performed due to a right middle cerebral artery occlusion, which was successfully recanalized. Two days after treatment, the patient complained of vague right abdominal pain and a laboratory test showed anemia. Abdominal computed tomography showed a right renal subcapsular hematoma. After conservative management, the patient was discharged without complications...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621949/prediction-of-prolonged-hemodynamic-instability-during-carotid-angioplasty-and-stenting
#13
Jong Kook Rhim, Jin Pyeong Jeon, Jeong Jin Park, Hyuk Jai Choi, Young Dae Cho, Seung Hun Sheen, Kyung-Sool Jang
PURPOSE: The aim of this study was to assess the risk factors of prolonged hemodynamic instability (HDI) after carotid angioplasty and stenting (CAS). Herein, a simplified predictive scoring system for prolonged HDI is proposed. MATERIALS AND METHODS: Sixty-six patients who had CAS from 2011 to 2016 at a single institution were evaluated. Prolonged HDI was defined as systolic blood pressure >160 mm Hg or <90 mm Hg or heart rate <50 beats/min, lasting over 30 minutes despite medical treatments...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621948/mechanical-solitaire-thrombectomy-with-low-dose-booster-tirofiban-injection
#14
Duck-Ho Goh, Sung-Chul Jin, Hae Woong Jeong, Sam Yeol Ha
PURPOSE: Mechanical thrombectomy using a Solitaire stent has been associated with a high recanalization rate and favorable clinical outcome in intra-arterial thrombolysis. To achieve a higher recanalization rate for mechanical Solitaire thrombectomy, we used an intra-arterial low-dose booster tirofiban injection into the occluded segment after stent deployment. We report the safety and recanalization rates for mechanical Solitaire thrombectomy with a low-dose booster tirofiban injection...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621947/monoplane-3d-overlay-roadmap-versus-conventional-biplane-2d-roadmap-technique-for-neurointervenional-procedures
#15
Dong-Kyu Jang, David A Stidd, Sebastian Schafer, Michael Chen, Roham Moftakhar, Demetrius K Lopes
PURPOSE: We investigated whether a 3D overlay roadmap using monoplane fluoroscopy offers advantages over a conventional 2D roadmap using biplane fluoroscopy during endovascular aneurysm treatment. MATERIALS AND METHODS: A retrospective chart review was conducted for 131 consecutive cerebral aneurysm embolizations by three neurointerventionalists at a single institution. Allowing for a transition period, the periods from January 2012 to August 2012 (Time Period 1) and February 2013 to July 2013 (Time Period 2) were analyzed for radiation exposure, contrast administration, fluoroscopy time, procedure time, angiographic results, and perioperative complications...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621946/comparison-between-balloon-assisted-and-stent-assisted-technique-for-treatment-of-unruptured-internal-carotid-artery-aneurysms
#16
Keun Young Park, Byung Moon Kim, Dong Joon Kim
PURPOSE: To compare clinical and angiographic outcomes between balloon-assisted (BAC) and stent-assisted coiling for internal carotid artery unruptured aneurysms (ICA-UA). MATERIALS AND METHODS: A total of 227 ICA-UA in 190 patients were treated with BAC (120 patients, 141 ICA-UA) or SAC (70 patients, 86 ICA-UA. We compared characteristics of patients and ICA-UA, and clinical and angiographic outcomes between groups. RESULTS: Aneurysm size and neck diameter were greater for SAC than in BAC, but aneurysm volume and coil packing density were not different between groups...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621945/anatomical-variations-of-cerebral-mr-venography-is-gender-matter
#17
Gourav Goyal, Rambir Singh, Nikhil Bansal, Vimal Kumar Paliwal
PURPOSE: Knowledge of variations in the cerebral dural venous sinus anatomy seen on magnetic resonance (MR) venography is essential to avoid over-diagnosis of cerebral venous sinus thrombosis (CVST). Very limited data is available on gender difference of the cerebral dural venous sinus anatomy variations. MATERIALS AND METHODS: A retrospective study was conducted to study the normal anatomy of the intracranial venous system and its normal variation, as depicted by 3D MR venography, in normal adults and any gender-related differences...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621944/cost-effectiveness-analysis-of-endovascular-coiling-versus-neurosurgical-clipping-for-intracranial-aneurysms-in-republic-of-korea
#18
Hyuk Won Chang, Shang Hun Shin, Sang Hyun Suh, Bum-Soo Kim, Myung Ho Rho
PURPOSE: The International Subarachnoid Aneurysm Trial (ISAT) revealed that in ruptured intracranial aneurysms (RA), endovascular coiling (EC) yields better clinical outcomes than neurosurgical clipping (NC) at 1 year. In unruptured aneurysms (UIA), EC is being increasingly used as an alternative to NC due to patients' preference. There is a lot of difference in treatment cost (EC vs. NC) between countries. There is one recently published study dealing with the comparative cost analysis only in UIAs in South Korea...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621943/patient-radiation-exposure-during-diagnostic-and-therapeutic-procedures-for-intracranial-aneurysms-a-multicenter-study
#19
Yon Kwon Ihn, Bum-Soo Kim, Jun Soo Byun, Sang Hyun Suh, Yoo Dong Won, Deok Hee Lee, Byung Moon Kim, Young Soo Kim, Pyong Jeon, Chang-Woo Ryu, Sang-Il Suh, Dae Seob Choi, See Sung Choi, Jin Wook Choi, Hyuk Won Chang, Jae-Wook Lee, Sang Heum Kim, Young Jun Lee, Shang Hun Shin, Soo Mee Lim, Woong Yoon, Hae Woong Jeong, Moon Hee Han
PURPOSE: To assess patient radiation doses during cerebral angiography and embolization of intracranial aneurysms across multi-centers and propose a diagnostic reference level (DRL). MATERIALS AND METHODS: We studied a sample of 490 diagnostic and 371 therapeutic procedures for intracranial aneurysms, which were performed at 23 hospitals in Korea in 2015. Parameters including dose-area product (DAP), cumulative air kerma (CAK), fluoroscopic time and total angiographic image frames were obtained and analyzed...
September 2016: Neurointervention
https://www.readbyqxmd.com/read/27621942/altitude-stress-during-participation-of-medical-congress
#20
EDITORIAL
Soon Bae Kim, Jong Sung Kim, Sang Jun Kim, Su Hee Cho, Dae Chul Suh
Medical congresses often held in highlands. We reviewed several medical issues associated with altitude stress especially while physicians have participated medical congress held in high altitude. Altitude stress, also known as an acute mountain sickness (AMS), is caused by acute exposure to low oxygen level at high altitude which is defined as elevations at or above 1,200 m and AMS commonly occurs above 2,500 m. Altitude stress with various symptoms including insomnia can also be experienced in airplane. AMS and drunken state share many common features in symptoms, neurologic manifestations and even show multiple microbleeds in corpus callosum and white matter on MRI...
September 2016: Neurointervention
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