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https://www.readbyqxmd.com/read/28304199/jailed-double-microcatheter-technique-following-horizontal-stenting-for-coil-embolization-of-intracranial-wide-necked-bifurcation-aneurysms-a-technical-report-of-two-cases
#1
Takahiro Kitahara, Taketo Hatano, Makoto Hayase, Etsuko Hattori, Akinori Miyakoshi, Takehiko Nakamura
The horizontal stenting technique facilitates endovascular treatment of wide-necked bifurcation intracranial aneurysms. Previous literature shows, however, that subsequent coil embolization at initial treatment results in incomplete obliteration in many cases. The authors present two consecutive cases of wide-necked large bifurcation aneurysms to describe an additional coil embolization technique following horizontal stenting. The patients were a 53-year-old female with an unruptured internal carotid artery terminus aneurysm and a 57-year-old female with a recurrent basilar artery tip aneurysm...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28303208/surgical-strategy-to-minimize-ischemia-during-trapping-resection-of-giant-extracranial-carotid-artery-aneurysm-stratified-by-collateral-evaluation
#2
Hiroki Hongo, Tomohiro Inoue, Akira Tamura, Isamu Saito
BACKGROUND: Extracranial carotid artery aneurysm (ECAA) is a rare clinical entity, and no standard treatment strategy has been established for this condition. METHODS: Data from three patients who underwent surgical treatment of enlarging giant ECAAs were retrospectively reviewed. Based on the collateral status, as evaluated by preoperative digital subtraction angiography (DSA), surgical strategy was stratified into (1) high flow bypass followed by cervical ICA (internal carotid artery) ligation, when the collateral status was judged as poor/fair or (2) direct cervical repair with patch application after aneurysmal wall resection when the collateral status was judged as robust...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28298019/microsurgical-versus-endovascular-interventions-for-blood-blister-aneurysms-of-the-internal-carotid-artery-systematic-review-of-literature-and-meta-analysis-on-safety-and-efficacy
#3
Sumedh S Shah, Zachary C Gersey, Mohamed Nuh, Hesham T Ghonim, Mohamed Samy Elhammady, Eric C Peterson
OBJECTIVE Blood-blister aneurysms (BBAs) of the internal carotid artery (ICA) have a poor natural history associated with high morbidity and mortality. Currently, both surgical and endovascular techniques are employed to treat BBAs; thus, the authors sought to perform a meta-analysis to compare the efficacy and safety of these approaches. METHODS A literature search of PubMed, MEDLINE, and Google Scholar online databases was performed to include pertinent English-language studies from 2005 to 2015 that discussed the efficacy and safety of either surgical or endovascular therapies to treat BBAs...
February 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28279774/conscious-sedation-versus-general-anesthesia-for-the-treatment-of-cerebral-aneurysms-with-flow-diversion-a-matched-cohort-study
#4
Christoph J Griessenauer, Hussain Shallwani, Nimer Adeeb, Raghav Gupta, Leonardo Rangel-Castilla, Adnan H Siddiqui, Elad I Levy, Myles D Boone, Ajith J Thomas, Christopher S Ogilvy
INTRODUCTION: Flow diversion has become a popular treatment option for a variety of cerebral aneurysms. We sought to compare conscious sedation and general anesthesia for flow diverter placement in a matched cohort study. MATERIALS AND METHODS: Patients who underwent flow diverter placement under conscious sedation were matched on the basis of age, sex, American Society of Anesthesiologists (ASA) classification, aneurysm location, and aneurysm size with patients who received general anesthesia...
March 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28272662/fibromuscular-dysplasia-of-the-coronary-arteries-a-case-report-and-review-of-the-literature
#5
Julia Kuzyk, Oksana Boiko, Taras Stetsko
Fibromuscular dysplasia is a nonatherosclerotic and non-inflammatory vascular disease with primary lesion of renal and internal carotid arteries. We present a neonatal case of fibromuscular dysplasia who died on the second day of life. The newborn suffered from fibromuscular dysplasia of the coronary arteries and a congenital heart defect. The interesting feature of this case was the formation of aneurysms of the coronary arteries with pulmonary atresia. This case demonstrates a casuistically rare form of association between fibromuscular dysplasia of the coronary arteries and pulmonary artery atresia...
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28269010/hemodynamic-effects-from-coil-distribution-with-realistic-coil-models-in-an-aneurysm
#6
Soichiro Fujimura, Hiroyuki Takao, Takashi Suzuki, Chihebeddine Dahmani, Hiroya Mamori, Makoto Yamamoto, Yuichi Murayama
Because of its minimal invasiveness, coil embolization has become a popular way to treat aneurysms. The main problem with this method, however, is the poor understanding of the hemodynamics in the aneurysm after coil embolization. To improve this situation, we used a finite element method and computational fluid dynamics to investigate how hemodynamic parameters depend on the spatial distribution of coils. A basic model of an internal carotid artery aneurysm was created, and six realistic coil models were considered for the coil geometry...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28265392/hybrid-procedure-combining-clip-on-wrapping-and-stent-placement-for-ruptured-supraclinoid-blood-blister-like-aneurysm-of-the-internal-carotid-artery
#7
Hirokazu Nagasaki, Michihisa Narikiyo, Gota Nagayama, Seiya Nagao, Yoshifumi Tsuboi, Chisaku Kambayashi
Blood blister-like aneurysms of the supraclinoid portion of the internal carotid artery are rare, fragile, and thin-walled lesions with a higher rate of rebleeding. Our case underwent a hybrid procedure combining direct surgical and endovascular approach.
March 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28264249/microguidewire-looping-to-traverse-stented-parent-arteries-of-intracranial-aneurysms
#8
Young Dae Cho, Jong Kook Rhim, Dong Hyun Yoo, Hyun-Seung Kang, Jeong Eun Kim, Moon Hee Han
OBJECTIVE: Stents are widely used in coil embolization of intracranial aneurysms, but on occasion, a microcatheter must traverse a stented segment of artery (so-called trans-cell technique) to select an aneurysm, or double stenting may necessary. In such situations, microguidewire passage and microcatheter delivery through a tortuous stented parent artery may pose a technical challenge. Described herein is a microguidewire looping technique to facilitate endovascular navigation in these circumstances...
March 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28250282/a-single-center-experience-with-coil-embolization-for-cerebral-aneurysms-greater-than-10-mm-in-the-internal-carotid-artery
#9
Kensuke Suzuki, Ryotaro Suzuki, Tomoji Takigawa, Nobuyuki Shimizu, Yoshiyuki Matsumoto, Yoshiko Fujii, Yuki Inoue, Yoshiki Sugiura, Koji Hirata, Kyoji Tsuda, Yosuke Kawamura, Issei Takano, Ryuta Nakae, Masaya Nagaishi, Yoshihiro Tanaka, Akio Hyodo
We investigated endovascular treatment for 10 mm or larger aneurysms in the internal carotid artery (IC), including the cavernous portion, the paraclinoid portion, and the posterior communication artery (PC). Between 2011 and 2014 at our hospital, there were 35 cases of aneurysms that were 10 mm or larger in the carotid artery. We analyzed these 35 cases retrospectively based on the size and location of the aneurysms, method of treatment, number of coils implanted, use of a stent, complications, rupture after treatment, ophthalmologic symptoms, and need for re-treatment...
March 2, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28248915/-phacing-a-new-cause-of-carotid-artery-dissection
#10
Caterina Kulyk, Filippo Farina, Anna Palmieri, Federica Viaro, Francesco Causin, Anna M Laverda, Claudio Baracchini
INTRODUCTION: Cervical arterial dissection (CAD) is a frequent and preventable cause of ischemic stroke in young patients. Several arguments suggest that genetic and developmental disorders could play an important role as part of a multifactorial predisposition of sporadic CAD.We present 2 cases of young patients with CAD in association with cutaneous lesions and nonatherosclerotic multivessel arteriopathy. CASE REPORTS: Our first patient was a 17-year-old white girl with sudden onset of weakness in her right upper limb...
March 2017: Neurologist
https://www.readbyqxmd.com/read/28244132/3d-phase-contrast-mri-partial-volume-correction-for-robust-blood-flow-quantification-in-small-intracranial-vessels
#11
Pierre Bouillot, Bénédicte M A Delattre, Olivier Brina, Rafik Ouared, Mohamed Farhat, Christophe Chnafa, David A Steinman, Karl-Olof Lovblad, Vitor M Pereira, Maria I Vargas
PURPOSE: Recent advances in 3D-PCMRI (phase contrast MRI) sequences allow for measuring the complex hemodynamics in cerebral arteries. However, the small size of these vessels vs spatial resolution can lead to non-negligible partial volume artifacts, which must be taken into account when computing blood flow rates. For this purpose, we combined the velocity information provided by 3D-PCMRI with vessel geometry measured with 3DTOF (time of flight MRI) or 3DRA (3D rotational angiography) to correct the partial volume effects in flow rate assessments...
February 28, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28238872/endovascular-treatment-of-intracavernous-internal-carotid-aneurysm-secondary-to-pituitary-infection-a-case-report
#12
Ligen Shi, Mading Zhou, Shenbin Xu, Qun Wu, Wei Yan, Jianmin Zhang
Intracavernous internal carotid artery (ICICA) aneurysm secondary to pituitary infection is exceedingly rare. We report an unusual case of a 63-year-old man who presented with acute left blepharoptosis and imaging findings of a pituitary infection. Interestingly, sudden onset of right blepharoptosis occurred after anti-infective therapy for ten days. Digital subtraction angiography revealed a right ICICA aneurysm. After six months of follow-up visits, enlargement of the ICICA aneurysm was observed, and the endovascular technique of a low-profile visualized intraluminal support (LVIS) stent combined with five detachable coils was successfully performed to treat the ICICA aneurysm with preservation of the internal carotid artery...
February 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28235953/nickel-associated-delayed-multiple-white-matter-lesions-after-stent-assisted-coil-embolization-of-intracranial-unruptured-aneurysm
#13
Hun Soo Park, Ichiro Nakagawa, Shohei Yokoyama, Daisuke Wajima, Takeshi Wada, Yasushi Motoyama, Kimihiko Kichikawa, Hiroyuki Nakase
Metal-induced encephalopathy after stent-assisted coil embolization is extremely rare. The present report describes two patients who presented with symptomatic intracranial parenchymal edematous lesions after stent-assisted coil embolization. A 64-year-old woman underwent stent-assisted coil embolization for a left internal carotid artery aneurysm; 21 days after the procedure she presented with right hand weakness and MRI revealed multifocal white matter lesions. Another woman aged 52 years underwent stent-assisted coil embolization for right vertebral artery aneurysm; 18 days after the procedure she presented with left-sided sensory disturbance and MRI demonstrated multiple white matter lesions...
February 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28229036/direct-surgery-of-previously-coiled-large-internal-carotid-ophthalmic-aneurysm-for-the-purpose-of-optic-nerve-decompression
#14
Shuhei Kawabata, Shingo Toyota, Tetsuya Kumagai, Tetsu Goto, Kanji Mori, Takuyu Taki
Background Progressive visual loss after coil embolization of a large internal carotid ophthalmic aneurysm has been widely reported. It is generally accepted that the primary strategy for this complication should be conservative, including steroid therapy; however, it is not well known as to what approach to take when the conservative therapy is not effective. Case Presentation We report a case of a 55-year-old female presenting with progressive visual loss after the coiling of a ruptured large internal carotid ophthalmic aneurysm...
January 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28227222/hemodynamic-effects-from-coil-distribution-with-realistic-coil-models-in-an-aneurysm
#15
Soichiro Fujimura, Hiroyuki Takao, Takashi Suzuki, Chihebeddine Dahmani, Hiroya Mamori, Makoto Yamamoto, Yuichi Murayama, Soichiro Fujimura, Hiroyuki Takao, Takashi Suzuki, Chihebeddine Dahmani, Hiroya Mamori, Makoto Yamamoto, Yuichi Murayama, Makoto Yamamoto, Hiroya Mamori, Soichiro Fujimura, Takashi Suzuki, Yuichi Murayama, Chihebeddine Dahmani, Hiroyuki Takao
Because of its minimal invasiveness, coil embolization has become a popular way to treat aneurysms. The main problem with this method, however, is the poor understanding of the hemodynamics in the aneurysm after coil embolization. To improve this situation, we used a finite element method and computational fluid dynamics to investigate how hemodynamic parameters depend on the spatial distribution of coils. A basic model of an internal carotid artery aneurysm was created, and six realistic coil models were considered for the coil geometry...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28219914/nickel-associated-delayed-multiple-white-matter-lesions-after-stent-assisted-coil-embolization-of-intracranial-unruptured-aneurysm
#16
Hun Soo Park, Ichiro Nakagawa, Shohei Yokoyama, Daisuke Wajima, Takeshi Wada, Yasushi Motoyama, Kimihiko Kichikawa, Hiroyuki Nakase
Metal-induced encephalopathy after stent-assisted coil embolization is extremely rare. The present report describes two patients who presented with symptomatic intracranial parenchymal edematous lesions after stent-assisted coil embolization. A 64-year-old woman underwent stent-assisted coil embolization for a left internal carotid artery aneurysm; 21 days after the procedure she presented with right hand weakness and MRI revealed multifocal white matter lesions. Another woman aged 52 years underwent stent-assisted coil embolization for right vertebral artery aneurysm; 18 days after the procedure she presented with left-sided sensory disturbance and MRI demonstrated multiple white matter lesions...
February 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28217382/pipeline-embolization-device-as-primary-treatment-for-cervical-internal-carotid-artery-pseudoaneurysms
#17
Arthur Wang, Justin Santarelli, Michael F Stiefel
BACKGROUND: Limited data exists on the durability and occlusion rate of treating extracranial cervical internal carotid artery pseudoaneurysms using the pipeline embolization device (PED) flow-diverting stent. METHODS: Three patients presenting with dissecting cervical internal carotid artery pseudoaneurysms were treated with the PED as the sole treatment modality. RESULTS: In all three patients, successful aneurysmal occlusion and parent vessel reconstruction occurred on immediate angiography and continued on 6-month follow-up...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28209576/differences-in-hemodynamics-and-rupture-rate-of-aneurysms-at-the-bifurcation-of-the-basilar-and-internal-carotid-arteries
#18
R Doddasomayajula, B Chung, F Hamzei-Sichani, C M Putman, J R Cebral
BACKGROUND AND PURPOSE: Cerebral aneurysms in the posterior circulation are known to have a higher rupture risk than those in the anterior circulation. We sought to test the hypothesis that differences in hemodynamics can explain the difference in rupture rates. MATERIALS AND METHODS: A total of 117 aneurysms, 63 at the tip of the basilar artery (27 ruptured, 36 unruptured, rupture rate = 43%) and 54 at the bifurcation of the internal carotid artery (11 ruptured, 43 unruptured, rupture rate = 20%) were analyzed with image-based computational fluid dynamics...
February 16, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28207524/in-stent-stenosis-in-the-patient-with-internal-carotid-aneurysm-after-treated-by-the-willis-covered-stent-two-case-reports-and-literature-review
#19
Lun-Xin Liu, Meng-Yuan Song, Xiao-Dong Xie
In-stent stenosis after treated by Willis covered stent-case reports. BACKGROUND: Advancements in minimally invasive technology have allowed endovascular reconstruction of internal carotid aneurysm. However, in-stent stenosis is an important and well-characterized complication of stenting after the treatment of internal carotid aneurysm. CASE DESCRIPTION: We would present 2 patients who were diagnosed with in-stent stenosis after the treatment of Willis covered stent...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28188419/angiographic-doughnut-shaped-aneurysm-of-intracranial-internal-carotid-artery
#20
Chung-Hsin Lee, Chih-Hsiang Liao, Wen-Hsien Chen, Hsu-Tung Lee, Yuang-Seng Tsuei
Morphologic characteristics of angiographic doughnut-shaped aneurysms of the intracranial internal carotid artery (ICA) have been rarely reported in the literature and were discussed only radiologically. In this case, surgical clipping was performed, and the specimen from the aneurysm was examined to correlate the pathologic findings and morphologic characteristics. A 59-year-old male presented with diffuse subarachnoid hemorrhage secondary to a ruptured vascular lesion originating from the intracranial portion of the right ICA...
February 10, 2017: Acta Neurochirurgica
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