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Internal carotid aneurysm

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https://www.readbyqxmd.com/read/28229036/direct-surgery-of-previously-coiled-large-internal-carotid-ophthalmic-aneurysm-for-the-purpose-of-optic-nerve-decompression
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/28184349/serpentine-cavernous-aneurysm-presented-with-visual-symptoms-improved-by-endovascular-coil-trapping
#8
Myeong-Jin Oh, Dong-Seong Shin, Rady Se, Bum-Tae Kim
This report describes a case of a serpentine fusiform aneurysm of the internal carotid artery in a patient who presented with visual disturbances. The serpentine aneurysm was treated successfully by coil trapping and occlusion of the parent artery, accompanied by balloon dilation. Nine months post-operatively, the patient's visual acuity had improved considerably.
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28184346/the-interference-phenomenon-of-microcatheters-in-the-jailing-treatment-for-internal-carotid-artery-side-wall-aneurysms-with-an-open-cell-stent-system
#9
Minwook Yoo, Sung-Chul Jin, Seung-Hwan Kim, Byeong-Sam Choi, Hae Yu Kim, SungJun Lee, Sung Tae Kim, Hae Woong Jeong
OBJECTIVE: Excelsior XT-27 (Stryker Neurovascular, Fremont, CA, USA) or Rebar 27 (eV3 Covidien, Irvine, CA, USA) microcatheters have recently been used to overcome the limitations of the Renegade Hi-Flo microcatheter such as interference between two microcatheters (one for stent delivery and the other for cerebral aneurysm coiling) during the jailing technique. We evaluated differences and influential factors related to the interference phenomenon according to these two microcatheters group...
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28184003/a-survey-of-intracranial-aneurysm-treatment-practices-among-united-states-physicians
#10
Kyle M Fargen, Hector E Soriano-Baron, Julia T Rushing, William Mack, J Mocco, Felipe Albuquerque, Andrew F Ducruet, Maxim Mokin, Italo Linfante, Stacey Q Wolfe, John A Wilson, Joshua A Hirsch
BACKGROUND: Recent surveys have failed to examine cerebrovascular aneurysm treatment practices among US physicians. OBJECTIVE: To survey physicians who are actively involved in the care of patients with cerebrovascular aneurysms to determine current aneurysm treatment preferences. METHODS: A 25-question SurveyMonkey online survey was designed and distributed electronically to members of the Society of NeuroInterventional Surgery, Society of Vascular and Interventional Neurology, and the American Association of Neurological Surgeons/Congress of Neurological Surgeons Combined Cerebrovascular Section...
February 9, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28181086/bilateral-cavernous-carotid-aneurysms-treated-by-two-stage-extracranial-intracranial-bypass-followed-by-parent-artery-occlusion-case-report-and-literature-review
#11
Yaoling Liu, Xiang'en Shi, Fangjun Liu, Yuming Sun, Hai Qian, Ting Lei
Bilateral cavernous carotid aneurysms (CCAs) are often not amenable to neurosurgical clipping or endovascular coiling. Here, we report the case of a 50-year-old female who presented with a 1-year history of gradual severe headache. Preoperative angiograms revealed bilateral CCAs. Among these findings, the right giant CCA had been trapped after the external carotid artery-saphenous vein-middle cerebral artery (ECA-SV-MCA) bypass 8 years prior. Additionally, the left CCA was again trapped after the internal maxillary artery-radial artery-middle cerebral artery (IMA-RA-MCA) bypass, followed by parent artery occlusion (PAO), because of the enlargement of a 0...
February 8, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28173470/blister-aneurysms-of-the-internal-carotid-artery-microsurgical-results-and-management-strategy
#12
Christopher M Owen, Nicola Montemurro, Michael T Lawton
No abstract text is available yet for this article.
February 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28162904/bilateral-internal-carotid-artery-aneurysms-at-the-subpetrosal-portion-with-unilateral-lower-cranial-nerve-palsies-review-and-consideration-of-surgical-strategy
#13
Kei Noguchi, Takachika Aoki, Rokudai Sakamoto, Kimihiko Orito, Yasuharu Takeuchi, Masaru Hirohata, Motohiro Morioka
BACKGROUND: Symptomatic bilateral extracranial internal carotid artery (ICA) aneurysms at the subpetrosal portion are extremely rare, and their treatment strategy remains unknown. CLINICAL PRESENTATION: A 42-year-old man presented to our hospital with a 2-month history of sudden onset of hoarseness, dysarthria, and dysphagia. Magnetic resonance imaging, magnetic resonance angiography, and computed tomography angiography revealed extracranial bilateral ICA aneurysms at the subpetrosal portion...
February 2, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28154128/lack-of-association-between-statin-use-and-angiographic-and-clinical-outcomes-after-pipeline-embolization-for-intracranial-aneurysms
#14
W Brinjikji, H Cloft, S Cekirge, D Fiorella, R A Hanel, P Jabbour, P Lylyk, C McDougall, C Moran, A Siddiqui, I Szikora, D F Kallmes
BACKGROUND AND PURPOSE: Use of statin medications has been demonstrated to improve clinical and angiographic outcomes in patients receiving endovascular stent placement for coronary, peripheral, carotid, and intracranial stenoses. We studied the impact of statin use on long-term angiographic and clinical outcomes after flow-diverter treatment of intracranial aneurysms. MATERIALS AND METHODS: We performed a post hoc analysis from pooled patient-level datasets from 3 Pipeline Embolization Device studies: the International Retrospective Study of the Pipeline Embolization Device, the Pipeline for Uncoilable or Failed Aneurysms Study, and the Aneurysm Study of Pipeline in an Observational Registry...
February 2, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28151901/coexistence-of-intracranial-epidermoid-tumor-and-multiple-cerebral-aneurysms-a-case-report-and-literature-review
#15
REVIEW
Pei-Sen Yao, Zhang-Ya Lin, Shu-Fa Zheng, Yuan-Xiang Lin, Liang-Hong Yu, Chang-Zhen Jiang, De-Zhi Kang
RATIONALE: There were a few case reports concerning epidermoid tumor coexisted with multiple cerebral aneurysms. Here, we present one case of coexistence of intracranial epidermoid tumor and multiple cerebral aneurysms and performed a literature review. PATIENT CONCERNS: A 42 years old male patient was admitted to our institution with complaints of headache and dizziness. INTERVENTIONS: The radiological examinations showed a hypointense lesion in the right parasellar and petrous apex region and an ipsilateral saccular aneurysm originated from the M2-M3 junction of the right middle cerebral artery (MCA) and a saccular aneurysm of the clinoid segment of right internal carotid artery (ICA)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28151413/use-of-the-0-027-inch-via-microcatheter-for-delivery-of-pipeline-flex-a-technical-note
#16
REVIEW
Li-Mei Lin, Geoffrey P Colby, Matthew Bender, Risheng Xu, Judy Huang, Rafael J Tamargo, Alexander L Coon
BACKGROUND: The Pipeline Embolization Device (PED; Medtronic Neurovascular, Irvine, California, USA) is designed for delivery through a 0.027″ microcatheter. Challenges with the second-generation PED Flex include limited support from the Marksman microcatheter for consistent resheathing and transmission of push forces for device delivery. The VIA27 (Sequent Medical/MicroVention Terumo, Tustin, California, USA) is an alternative 0.027″ microcatheter originally designed for intrasaccular flow diverter delivery...
February 1, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28145934/efficacy-and-safety-of-willis-covered-stent-for-treatment-of-internal-carotid-artery-aneurysms
#17
Chunhai Tang, Songtao Qi
OBJECTIVE: The purpose of this study was to evaluate the clinical and short-term outcome of patients who underwent covered stent treatment for internal carotid artery aneurysms. METHODS: Twelve cases patients with internal carotid artery aneurysms were treated with Willis covered stents during the period from December 2010 to January 2016. The guiding catheter was placed as high as possible to facilitate the delivery of the covered stent system. RESULTS: Covered stent placement was successful in 11 of 12 case patients (91...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28126980/-a-case-of-cervical-internal-carotid-artery-occlusion-presenting-with-subarachnoid-hemorrhage-caused-by-rupture-of-leptomeningeal-anastomosis
#18
Tsuyoshi Tsukada, Toru Masuoka, Hideo Hamada, Shoutarou Itou, Takuya Akai, Hideaki Iizuka
A 71-year-old man was admitted to our hospital with a diagnosis of subarachnoid hemorrhage (SAH). Angiographies revealed neither aneurysms nor vascular anomalies. However, these images elucidated the occlusion of the left cervical internal carotid artery as well as developed leptomeningeal anastomoses through the ipsilateral posterior cerebral artery, which resulted in blood perfusing the ipsilateral middle and anterior cerebral artery territories. Because the localization of SAH coincided with the developed leptomeningeal anastomosis, we speculated that the rupture of the developed leptomeningeal anastomosis in the basal cistern was the cause of SAH...
January 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28120578/retrograde-suction-decompression-with-an-inahara-carotid-shunt-for-clipping-a-large-distal-internal-carotid-artery-aneurysm
#19
Yong Sook Park, Taek Kyun Nam
We describe a technique to clip a large internal carotid artery (ICA) aneurysm via a retrograde suction decompression (RSD). A large aneurysm in the right distal ICA involving the bifurcation region measuring 1.2×1.1×0.7 cm with posterior projection was managed with assisted RSD technique. The anterior choroidal artery emerged from the side wall of the aneurysm. An Inahara shunt was inserted into the ICA with neck dissection, and RSD was applied after completely clipping the aneurysm. RSD with an Inahara carotid shunt is useful for complete visualization of the aneurysm, including its surrounding structures, and for proximal control of the parent vessels, subsequently achieving satisfactory clip placement...
March 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28109730/endovascular-repair-with-cervical-access-to-treat-a-symptomatic-internal-carotid-artery-aneurysm-in-a-patient-with-neurofibromatosis-type-1
#20
B Leclerc, S Rinckenbach
No abstract text is available yet for this article.
January 18, 2017: European Journal of Vascular and Endovascular Surgery
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