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Internal carotid aneurysm

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https://www.readbyqxmd.com/read/28640793/intraoperative-computed-tomography-ct-for-treating-giant-carotid-intracavernous-aneurysms
#1
Zhe Xue, Fuyu Wang, Zhenghui Sun, Hui Zhang, Chen Wu, Dongsheng Kong, Bainan Xu
BACKGROUND Giant carotid intracavernous aneurysm refers to those lesions larger than 2.5 cm and derived from a cavernous segment, accounting for about 30% of all intracranial tumors. Dynamic CT perfusion imaging (PCT) is a common method recently employed to evaluate cerebral perfusion. This study investigated the efficacy and clinical application of intraoperative CT in the surgery for giant symptomatic carotid intracavernous aneurysm. MATERIAL AND METHODS A retrospective analysis was performed on 23 cases with giant symptomatic carotid intracavernous aneurysm...
June 22, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28637249/bypass-surgery-for-complex-intracranial-aneurysms-15-years-of-experience-at-a-single-institution-and-review-of-pertinent-literature
#2
Seung Pil Ban, Won-Sang Cho, Jeong Eun Kim, Chang Hyeun Kim, Jae Seung Bang, Young-Je Son, Hyun-Seung Kang, O-Ki Kwon, Chang Wan Oh, Moon Hee Han
BACKGROUND: Bypass surgery is a treatment option for complex intracranial aneurysms. OBJECTIVE: To determine the utility of bypass surgery for the treatment of complex intracranial aneurysms and to review the literature on this topic. METHODS: Sixty-two patients were included in this retrospective study. Unruptured aneurysms were dominant (80.6%), and the internal carotid artery was the most common location of the aneurysm (56.4%), followed by the middle cerebral artery (21...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28619499/results-of-early-high-flow-bypass-and-trapping-for-ruptured-blood-blister-like-aneurysms-of-the-internal-carotid-artery
#3
Yuichiro Kikkawa, Toshiki Ikeda, Ririko Takeda, Hiroyuki Nakajima, Takeshi Ogura, Hidetoshi Ooigawa, Hiroki Kurita
OBJECTIVE: The aim of this study is to clarify the efficacy and safety of early surgery using trapping of the affected internal carotid artery (ICA) and high-flow bypass between second portion of the middle cerebral artery and cervical external carotid artery with radial artery graft for ruptured blood blister-like aneurysms (BBAs) arising from anterior wall of the ICA. METHODS: Medical chart of consecutive 16 patients (M:F=7:9, mean 59 years) with subarachnoid hemorrhage (WFNS grade I:2, II:5, III:2, IV:4, V:3) due to ruptured BBA surgically treated between July 2010 and October 2015 were retrospectively reviewed...
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28619490/use-of-simple-neck-extension-to-improve-guiding-catheter-accessibility-in-tortuous-cervical-internal-carotid-artery-for-endovascular-embolization-of-intracranial-aneurysm-a-technical-note
#4
Megumu Takata, Hitoshi Fukuda, Masanori Kinosada, Kosuke Miyake, Kenichi Murao
No abstract text is available yet for this article.
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28612579/-endovascular-treatment-of-blood-blister-like-aneurysms-in-internal-carotid-artery
#5
Shou-Wei Xiang, Ding Xu, Chao-Hua Wang, Li-Gang Hu, Chang-Wei Zhang, Xiao-Dong Xie
OBJECTIVES: To study the feasibility and effectiveness of endovascular treatment to blood blister-like aneurysms (BBA) in internal carotid artery. METHODS: Retrospective analyzed the clinical features, outcomes, and complications of 20 cases of BBA treated with endovascular intervention techniques from 2013-2015 in our center. RESULTS: The patients were treated with covered stent, internal carotid artery balloon occlusion, and stents assisted coiling, respectively...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28604183/treatment-of-an-internal-carotid-artery-aneurysm-with-a-flow-diverter-through-a-double-lumen-balloon-catheter
#6
José M Amorim, Santiago Rosati, Ronit Agid, Vítor Mendes Pereira, Timo Krings
Background Double lumen balloon catheters (DLBCs) are currently used in the treatment of intracranial aneurysms, especially when involving balloon or stent-assisted coiling. The existing DLBCs allow the delivery of self-expandable stents but do not offer the possibility to deploy flow-diverters. Despite the increasing use and success of flow-diverters, there have been numerous reports of procedural complications such as early in-stent thrombosis or delayed distal embolization. It seems that these complications can be avoided by correct stent positioning and adequate wall apposition, achieved either by manoeuvres with the microguidewire and/or microcatheter or by performing balloon angioplasty following an exchange guidewire manoeuvre...
June 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28595811/acute-distal-migration-of-a-flow-diverting-stent
#7
David Dornbos, Ciarán J Powers
The introduction of flow diverting stents, particularly for treatment of petrous to supraclinoid internal carotid artery aneurysms, has greatly impacted endovascular treatment of intracranial aneurysms. Despite their high efficacy, complications, such as ischemic events, distal hemorrhage, or problems with stent deployment, remain a significant concern. We present the first reported case of acute distal migration of a Pipeline Embolization Device (PED). A 24-year old female underwent elective placement of a PED for treatment of a left paraclinoid internal carotid artery aneurysm...
June 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28587530/endovascular-treatment-of-wide-neck-intracranial-bifurcation-aneurysms-with-y-configuration-double-neuroform%C3%A2-stents-assisted-coiling-technique-experience-in-a-single-center
#8
C Castaño, M Terceño, S Remollo, M R García-Sort, C Domínguez
Background Intracranial wide-neck aneurysms at the arterial bifurcations, especially in the aneurysms where the bifurcating branches emanate directly from the base of the aneurysm, have been particularly difficult on which to perform endovascular treatment. The 'Y'-configuration, double stent-assisted coil embolization is an option for the treatment of these difficult aneurysms, allowing the closure of the aneurysm, preserving the parent arteries. Material and methods In a nine-year period, 546 intracranial aneurysms in 493 patients were treated at our center by endovascular approach...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28585672/a-trial-for-an-evaluation-of-perianeurysmal-arterial-pressure-change-during-carotid-artery-stenting-in-patients-with-concomitant-severe-extracranial-carotid-artery-stenosis-and-ipsilateral-intracranial-aneurysm
#9
Daisuke Wajima, Ichiro Nakagawa, Takeshi Wada, Hiroyuki Nakase
Concomitant occurrence of severe extracranial large vessel stenosis and an ipsilateral intracranial aneurysm is often detected incidentally, but the optimal therapeutic strategy is not clear. Several reports have investigated whether simultaneous carotid artery stenting and coil embolization, or multi-stage therapy is better. These treatment strategies are still controversial because simultaneous therapy will decrease the risk of aneurysm rupture, but may also increase the risk of thromboembolic complications...
April 27, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28584682/safe-time-duration-for-temporary-middle-cerebral-artery-occlusion-in-aneurysm-surgery-based-on-motor-evoked-potential-monitoring
#10
Jun Tanabe, Tatsuya Ishikawa, Junta Moroi
BACKGROUND: Temporary vessel occlusion of the parent artery is an essential technique for aneurysm surgery. Our aim was to clarify the safe time for temporary occlusion for aneurysm surgery, that is the "safe time duration" (STD), in which brain tissue exposed to ischemia will almost never fall into even the ischemic penumbra during temporary occlusion of the middle cerebral artery (MCA), and even transient postoperative motor impairment will be rare using intraoperative motor-evoked potentials (MEP)...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28583450/intraprocedural-rupture-of-unruptured-cerebral-aneurysms-during-coil-embolization-a-single-center-experience
#11
Su Hee Cho, Mohammed Denewer, Won Hyong Park, Jae Sung Ahn, Byung Duk Kwun, DeokHee Lee, Jung Cheol Park
OBJECTIVE: The incidence of intraprocedural rupture (IPR) during endovascular coiling is reported to range from 2% to 5%. In this study, we reviewed the single center experiences of IPR during coil embolization for unruptured intracranial aneurysm. METHODS: At our institution, 849 patients were treated with endovascular therapy for unruptured intracranial aneurysm between January 2011 and April 2016. Ten (1.18%) of these patients had documented IPR. We reviewed the medical data to evaluate the characteristics of the aneurysms, angiographic findings related to rupture, management, and outcomes...
June 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28583044/acquired-intracranial-arterial-aneurysm-and-stroke-after-vessel-dissection-in-a-child-with-coarctation-of-the-aorta
#12
Andrea Donti, Luca Spinardi, Roberto Formigari, Maria Elisabetta Mariucci, Gabriele Egidy Assenza, Marco Pastore Trossello, Marco Bonvicini
Vascular events in patients with coarctation of the aorta have been extensively reported and account for the majority of morbidity and mortality in untreated patients. The exact mechanism for this association is not completely understood and may include acquired anomalies or congenital abnormalities of intracranial vessel. Here we report a case of intracranial internal carotid artery dissection with subsequent formation of acquired large carotid aneurysm in a child with severe systemic hypertension and coarctation of the aorta...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28576528/endovascular-management-of-iatrogenic-cervical-internal-carotid-artery-pseudoaneurysm-in-a-9-year-old-child-case-report-and-literature-review
#13
Martín Pinzón, Nelson Oswaldo Lobelo, María Claudia Rodríguez, Perla Villamor, Ana María Otoya
Extracranial internal carotid artery (ICA) pseudoaneurysms are uncommon in the pediatric population and are usually secondary to direct trauma to the vessel. Treatment options include surgery (ligation), anticoagulation therapy and endovascular treatment. Endovascular covered stents have shown good results in adult populations, resulting in occlusion of the aneurysm and preservation of the artery without significant complications. However, there have been only limited reports in the literature reporting endovascular carotid stent placement in the pediatric population...
April 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28574313/rationale-for-graft-selection-in-patients-with-complex-internal-carotid-artery-aneurysms-treated-with-extracranial-to-intracranial-high-flow-bypass-and-therapeutic-internal-carotid-artery-occlusion
#14
Hidetoshi Matsukawa, Shiro Miyata, Toshiyuki Tsuboi, Kosumo Noda, Nakao Ota, Osamu Takahashi, Rihee Takeda, Sadahisa Tokuda, Hiroyasu Kamiyama, Rokuya Tanikawa
OBJECTIVE After internal carotid artery (ICA) sacrifice without revascularization for complex aneurysms, ischemic complications can occur. In addition, hemodynamic alterations in the circle of Willis create conditions conducive to the formation of de novo aneurysms or the enlargement of existing untreated aneurysms. Therefore, the revascularization technique remains indispensable. Because vessel sizes and the development of collateral circulation are different in each patient, the ideal graft size to prevent low flow-related ischemic complications (LRICs) in external carotid artery (ECA)-middle cerebral artery (MCA) bypass with therapeutic ICA occlusion (ICAO) has not been well established...
June 2, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28573970/uncertainty-quantification-of-wall-shear-stress-in-intracranial-aneurysms-using-a-data-driven-statistical-model-of-systemic-blood-flow-variability
#15
Ali Sarrami-Foroushani, Toni Lassila, Ali Gooya, Arjan J Geers, Alejandro F Frangi
Adverse wall shear stress (WSS) patterns are known to play a key role in the localisation, formation, and progression of intracranial aneurysms (IAs). Complex region-specific and time-varying aneurysmal WSS patterns depend both on vascular morphology as well as on variable systemic flow conditions. Computational fluid dynamics (CFD) has been proposed for characterising WSS patterns in IAs; however, CFD simulations often rely on deterministic boundary conditions that are not representative of the actual variations in blood flow...
December 8, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28566939/variation-of-a-persistent-primitive-hypoglossal-artery-ppha-as-incidental-finding-in-the-diagnostic-clarification-of-cerebral-vasculopathy-associated-with-intracranial-vasculitis
#16
S Hopf-Jensen, L Marques, M Preiß, W Börm, S Müller-Hülsbeck
We present a very rare variation of a persistent primitive hypoglossal artery (PPHA) arising from the internal carotid artery, detected during a diagnostic angiography. A 50-year-old female patient was admitted with an atypical intracranial hematoma in the left frontal lobe. Catheter angiography revealed intracranial vasculopathy with segmental stenoses, a small aneurysm of the right internal carotid artery bifurcation and a "string of beads" appearance of the left carotid artery, consistent with fibromuscular disease...
June 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28565990/transcirculation-pipeline-embolization-device-deployment-a-rescue-technique
#17
Edison P Valle-Giler, Elias Atallah, Stavropoula Tjoumakaris, Robert H Rosenwasser, Pascal Jabbour
The Pipeline embolization device (PED) has become a very important tool in the treatment of nonruptured cerebral aneurysms. However, a patient's difficult anatomy or vascular stenosis may affect the device delivery. The purpose of this article was to describe an alternate technique for PED deployment when ipsilateral anatomy is not amenable for catheter navigation. A 44-year-old woman with a symptomatic 6-mm right superior hypophyseal artery aneurysm and a known history of right internal carotid artery dissection presented for PED treatment of her aneurysm...
June 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28565989/pipeline-embolization-device-for-recurrence-of-previously-treated-aneurysms
#18
David Dornbos, Constantine L Karras, Nicole Wenger, Blake Priddy, Patrick Youssef, Shahid M Nimjee, Ciarán J Powers
OBJECTIVE The utilization of the Pipeline embolization device (PED) has increased significantly since its inception and original approval for use in large, broad-necked aneurysms of the internal carotid artery. While microsurgical clipping and advances in endovascular techniques have improved overall efficacy in achieving complete occlusion, recurrences still occur, and the best modality for retreatment remains controversial. Despite its efficacy in this setting, the role of PED utilization in the setting of recurrent aneurysms has not yet been well defined...
June 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28565984/novel-use-of-flow-diversion-for-the-treatment-of-aneurysms-associated-with-arteriovenous-malformations
#19
Craig Kilburg, Philipp Taussky, M Yashar S Kalani, Min S Park
The use of flow-diverting stents for intracranial aneurysms has become more prevalent, and flow diverters are now routinely used beyond their initial scope of approval at the proximal internal carotid artery. Although flow diversion for the treatment of cerebral aneurysms is becoming more commonplace, there have been no reports of its use to treat flow-related cerebral aneurysms associated with arteriovenous malformations (AVMs). The authors report the cases of 2 patients whose AVM-associated aneurysms were managed with flow diversion...
June 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28565978/off-label-uses-of-the-pipeline-embolization-device-a-review-of-the-literature
#20
Purvee D Patel, Nohra Chalouhi, Elias Atallah, Stavropoula Tjoumakaris, David Hasan, Hekmat Zarzour, Robert Rosenwasser, Pascal Jabbour
The Pipeline embolization device (PED) is the most widely used flow diverter in endovascular neurosurgery. In 2011, the device received FDA approval for the treatment of large and giant aneurysms in the internal carotid artery extending from the petrous to the superior hypophyseal segments. However, as popularity of the device grew and neurosurgeons gained more experience, its use has extended to several other indications. Some of these off-label uses include previously treated aneurysms, acutely ruptured aneurysms, small aneurysms, distal circulation aneurysms, posterior circulation aneurysms, fusiform aneurysms, dissecting aneurysms, pseudoaneurysms, and even carotid-cavernous fistulas...
June 2017: Neurosurgical Focus
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