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Anterior cerebral artery

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https://www.readbyqxmd.com/read/28090185/characteristics-and-outcomes-of-patients-with-anterior-circulation-intracranial-aneurysm-managed-with-clipping-in-hospital-sungai-buloh
#1
Ailani Ab Ghani, Saiful Azli Mat Nayan, Regunath Kandasamy, Azmin Kas Rosman, Abdul Rahman Izani Ghani
INTRODUCTION: The annual incidence of intracranial aneurysm in Malaysia is estimated to be 1.1-1.7 per 100,000 population based on a study done conducted in 1988. Since then, little epidemiological research has been conducted in Malaysia, and the real incidence is therefore probably unreported despite advancements in the diagnosis and treatment of this disorder. Intracranial aneurysm may be treated by microsurgical clipping or embolisation depending on its location and the surgeon's preference...
November 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28089839/maxillary-artery-to-middle-cerebral-artery-bypass-a-novel-technique-for-exposure-of-the-maxillary-artery
#2
Kaan Yagmurlu, M Yashar S Kalani, Nikolay L Martirosyan, Sam Safavi-Abbasi, Evgenii Belykh, Avra S Laarakker, Peter Nakaji, Joseph M Zabramski, Mark C Preul, Robert F Spetzler
OBJECTIVES: Define the maxillary artery (MaxA) anatomy and present a novel technique for exposing and preparing this vessel as a bypass donor. METHODS: Cadaveric and radiological studies were used to define the MaxA anatomy and illustrate a novel method for harvesting and preparing it for extracranial-to-intracranial bypass. RESULTS: The MaxA runs parallel to the frontal branch of the superficial temporal artery (STA) and is located on average 24...
January 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28088807/posterior-versus-anterior-circulation-stroke-in-young-adults-a-comparative-study-of-stroke-aetiologies-and-risk-factors-in-stroke-among-young-fabry-patients-sifap1
#3
Bettina von Sarnowski, Ulf Schminke, Ulrike Grittner, Christian Tanislav, Tobias Böttcher, Michael G Hennerici, Turgut Tatlisumak, Jukka Putaala, Manfred Kaps, Franz Fazekas, Christian Enzinger, Arndt Rolfs, Christof Kessler
BACKGROUND: Although 20-30% of all strokes occur in the posterior circulation, few studies have explored the characteristics of patients with strokes in the posterior compared to the anterior circulation so far. Especially data on young patients is missing. METHODS: In this secondary analysis of data of the prospective multi-centre European sifap1 study that investigated stroke and transient ischemic attack (TIA) patients aged 18-55 years, we compared vascular risk factors, stroke aetiology, presence of white matter hyperintensities (WMH) and cerebral microbleeds (CMB) between patients with ischaemic posterior circulation stroke (PCS) and those having suffered from anterior circulation stroke (ACS) based on cerebral MRI...
January 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28088803/small-versus-large-ruptured-intracranial-aneurysm-concerns-with-the-site-of-aneurysm
#4
Bum Joon Kim, Hyun Goo Kang, Byeong-Duk Kwun, Jae-Sung Ahn, Jisung Lee, Sung Ho Lee, Dong-Wha Kang, Jong S Kim, Sun U Kwon
BACKGROUND: Although size is one of the strongest predictors, small aneurysms often rupture. We compared the characteristics of small and large ruptured intracranial aneurysms (RIAs) according to their location to find the factors associated with small RIAs in each location. METHODS: Patients with subarachnoid hemorrhage due to saccular RIAs were consecutively enrolled. The sizes were dichotomized as small (<5 mm) or large, and the location was classified as paraclinoid-distal internal carotid artery, sidewalls of anterior or middle cerebral artery (MCA; sidewall), MCA-bifurcation, anterior or posterior communicating artery (Acom or Pcom, respectively), and posterior circulation RIAs...
January 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28087804/clinical-selection-strategies-to-identify-ischemic-stroke-patients-with-large-anterior-vessel-occlusion-results-from-sits-istr-safe-implementation-of-thrombolysis-in-stroke-international-stroke-thrombolysis-registry
#5
Jan F Scheitz, Azmil H Abdul-Rahim, Rachael L MacIsaac, Charith Cooray, Heidi Sucharew, Dawn Kleindorfer, Pooja Khatri, Joseph P Broderick, Heinrich J Audebert, Niaz Ahmed, Nils Wahlgren, Matthias Endres, Christian H Nolte, Kennedy R Lees
BACKGROUND AND PURPOSE: The National Institutes of Health Stroke Scale (NIHSS) correlates with presence of large anterior vessel occlusion (LAVO). However, the application of the full NIHSS in the prehospital setting to select patients eligible for treatment with thrombectomy is limited. Therefore, we aimed to evaluate the prognostic value of simple clinical selection strategies. METHODS: Data from the Safe Implementation of Thrombolysis in Stroke International Stroke Thrombolysis Registry (January 2012-May 2014) were analyzed retrospectively...
January 13, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28079797/case-report-rapid-improvement-of-crossed-cerebellar-diaschisis-after-intravascular-laser-irradiation-of-blood-in-a-case-of-stroke
#6
Wan-Hua Yang, Shiou-Ping Lin, Shin-Tsu Chang
RATIONALE: Crossed cerebellar diaschisis (CCD) is a poor prognostic factor after stroke because without immediate cerebral reperfusion no further improvements in the patient's condition can be achieved. We investigated the clinical effects of intravascular laser irradiation therapy (ILIB) on CCD and evaluated the therapeutic effect in the sub-acute post-stroke stage. PATIENT CONCERNS: The 77-year-old male with cerebral infarction in the territory of the right anterior cerebral artery only underwent conservative treatment including hydration and aspirin in the acute post-stroke stage...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28065615/-man-in-the-barrel-syndrome-with-anterior-spinal-artery-infarct-due-to-vertebral-artery-dissection
#7
Carolina Rouanet, Danyelle Reges, Eva Rocha, Vivian Gagliardi, Marcel Ken Uehara, Maramelia Alves Miranda, Gisele Sampaio Silva
BACKGROUND: Man in the barrel syndrome (MBS) is a condition of brachial diplegia initially described after a bilateral watershed cerebral infarct between the anterior and the middle cerebral artery territories. OBJECTIVE: To report a case of MBS as a consequence of anterior spinal artery infarct due to vertebral artery dissection. DISCUSSION: More recently, nonischemic lesions in brain and brain stem have also been described as etiologies of MBS...
January 5, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28062805/intravenous-thrombolysis-before-endovascular-therapy-for-large-vessel-strokes-can-lead-to-significantly-higher-hospital-costs-without-improving-outcomes
#8
Ansaar T Rai, SoHyun Boo, Chelsea Buseman, Amelia K Adcock, Abdul R Tarabishy, Maurice M Miller, Thomas D Roberts, Jennifer R Domico, Jeffrey S Carpenter
BACKGROUND: Limited efficacy of IV recombinant tissue plasminogen activator (rt-PA) for large vessel occlusions (LVO) raises doubts about its utility prior to endovascular therapy. PURPOSE: To compare outcomes and hospital costs for anterior circulation LVOs (middle cerebral artery, internal carotid artery terminus (ICA-T)) treated with either primary endovascular therapy alone (EV-Only) or bridging therapy (IV+EV)). METHODS: A single-center retrospective analysis was performed...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28061486/superficial-temporal-artery-sparing-mini-pterional-approach-for-cerebral-aneurysm-surgery
#9
Jun-Young Ahn, Sung-Tae Kim, Ki-Chang Yi, Won-Hee Lee, Sung Hwa Paeng, Young-Gyun Jeong
OBJECTIVE: The purposes of this study were to introduce a superficial temporal artery (STA)-sparing mini-pterional approach for the treatment of cerebral aneurysms and review the surgical results of this approach. METHODS: Between June 2010 and December 2015, we performed the STA-sparing mini-pterional approach for 117 patients with 141 unruptured intracranial aneurysms. We analyzed demographic, radiologic, and clinical variables including age, sex, craniotomy size, aneurysm location, height of STA bifurcation, and postoperative complications...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28059658/parent-vessel-occlusion-after-pipeline-embolization-of-cerebral-aneurysms-of-the-anterior-circulation
#10
Matthew B Potts, Maksim Shapiro, Daniel W Zumofen, Eytan Raz, Erez Nossek, Keith G DeSousa, Tibor Becske, Howard A Riina, Peter K Nelson
OBJECTIVE The Pipeline Embolization Device (PED) is now a well-established option for the treatment of giant or complex aneurysms, especially those arising from the anterior circulation. Considering the purpose of such treatment is to maintain patency of the parent vessel, postembolization occlusion of the parent artery can be regarded as an untoward outcome. Antiplatelet therapy in the posttreatment period is therefore required to minimize such events. Here, the authors present a series of patients with anterior circulation aneurysms treated with the PED who subsequently experienced parent vessel occlusion (PVO)...
January 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28059656/midterm-results-of-t-stent-assisted-coiling-of-wide-necked-and-complex-intracranial-bifurcation-aneurysms-using-low-profile-stents
#11
Kubilay Aydin, Serra Sencer, Mehmet Barburoglu, Mynzhylky Berdikhojayev, Yavuz Aras, Altay Sencer, Nail İzgi
OBJECTIVE Coiling of wide-necked and complex bifurcation aneurysms frequently requires implantation of double stents in various configurations. T-stent-assisted coiling involves the nonoverlapping implantation of 2 stents to protect the daughter vessels of bifurcation and is followed by coiling of the aneurysm. The authors studied the feasibility, efficacy, and safety of the T-stent-assisted coiling procedure as well as the midterm angiographic/clinical outcomes of patients with wide-necked bifurcation intracranial aneurysms treated using this technique...
January 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28059632/pseudoaneurysm-formation-due-to-rupture-of-intracranial-aneurysms-case-series-and-literature-review
#12
Motohiro Nomura, Kentaro Mori, Akira Tamase, Tomoya Kamide, Syunsuke Seki, Yu Iida, Tatsu Nakano, Yuichi Kawabata, Taro Kitabatake, Teruyuki Nakajima, Kiyoyuki Yasutake, Kei Egami, Tatsunori Takahashi, Mitsuyuki Takahashi, Kunio Yanagimoto
Background Intracranial pseudoaneurysm formation due to a ruptured non-traumatic aneurysm is extremely rare. We describe the radiological findings and management of pseudoaneurysms due to ruptured cerebral aneurysms in our case series and previously reported cases. Patients and methods Four additional and 20 reported patients presenting with subarachnoid hemorrhage (SAH) are included. Radiological findings and clinical features of these patients were reviewed. Results In our series, three-dimensional computed tomographic angiography (3D-CTA) and/or angiography showed an irregular- or snowman-shaped cavity extending from the parent artery...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28057635/in-vivo-assessment-of-the-impact-of-regional-intracranial-atherosclerotic-lesions-on-brain-arterial-3d-hemodynamics
#13
C Wu, S Schnell, P Vakil, A R Honarmand, S A Ansari, J Carr, M Markl, S Prabhakaran
BACKGROUND AND PURPOSE: Intracranial atherosclerosis induces hemodynamic disturbance, which is not well-characterized, particularly in cerebral flow redistribution. We aimed to characterize the impact of regional stenotic lesions on intracranial hemodynamics by using 4D flow MR imaging. MATERIALS AND METHODS: 4D flow MR imaging was performed in 22 symptomatic patients (mean age, 68.4 ± 14.2 years) with intracranial stenosis (ICA, n = 7; MCA, n = 9; basilar artery, n = 6) and 10 age-appropriate healthy volunteers (mean age, 60...
January 5, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28057589/microsurgical-clipping-of-unruptured-intracranial-aneurysms-a-single-surgeon-s-experience-over-sixteen-years
#14
Anil Nanda, Devi Prasad Patra, Shyamal C Bir, Tanmoy K Maiti, Piyush Kalakoti, Papireddy Bollam
INTRODUCTION: Unruptured intracranial aneurysms (UIA) have become an issue of greater significance as their detection rates have increased over the years. We present the overall experience of microsurgical clipping of unruptured aneurysms by a single surgeon over a period of more than 16 years. METHODS: The clinical and radiological data were retrospectively reviewed. Clinical outcome at follow-up was assessed by Glasgow Outcome Scale (GOS), and angiograms were reviewed for the degree of occlusion...
January 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28050720/indocyanine-green-visualization-of-middle-meningeal-artery-before-craniotomy-during-surgical-revascularization-for-moyamoya-disease
#15
Nozomu Tanabe, Shusuke Yamamoto, Daina Kashiwazaki, Naoki Akioka, Naoya Kuwayama, Kyo Noguchi, Satoshi Kuroda
BACKGROUND: The middle meningeal artery (MMA) is well known to function as an important collateral channel to the territory of the anterior cerebral artery in moyamoya disease. This study was aimed to evaluate whether indocyanine green (ICG) videoangiography could visualize the anterior branch of the MMA before craniotomy during surgical revascularization for moyamoya disease. METHODS: This study included 19 patients who developed TIA, ischemic stroke or hemorrhagic stroke due to moyamoya disease...
January 3, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28027739/intracranial-arterial-wall-enhancement-using-gadolinium-enhanced-3d-black-blood-t1-weighted-imaging
#16
Koichi Takano, Kosuke Hida, Yasuo Kuwabara, Kengo Yoshimitsu
PURPOSE: We investigated the enhancement of the intracranial arterial walls with gadolinium-enhanced, black-blood three-dimensional T1-weighted imaging (Gd-3DBB) by using an improved motion-sensitized driven-equilibrium (iMSDE)-prepared volumetric isotropic turbo spin-echo acquisition (VISTA). METHODS: A total of 115 patients underwent FLAIR, 3D-TOF-MRA and Gd-3DBB with a 1.5-T scanner. The degree and distribution of the arterial wall enhancement on Gd-3DBB was assessed...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28025467/mechanical-thrombectomy-using-the-trevo-provue-in-50-consecutive-patients-with-anterior-circulation-stroke-a-single-center-experience-after-approval-of-the-stent-retriever-in-japan
#17
Taichiro Imahori, Kazuhiro Tanaka, Junji Koyama, Atsushi Arai, Ryoji Shiomi, Hirofumi Iwahashi, Akiyoshi Yokote, Kazushi Matsushima, Daisaku Matsui, Makoto Kobayashi, Atsushi Fujita, Kohkichi Hosoda, Eiji Kohmura
Mechanical thrombectomy using the stent retriever has been proven to be effective for select patients with acute ischemic stroke. We evaluated our early experience using the device after its approval in 2014 in Japan, with a special emphasis on the occlusion site. Fifty consecutive endovascular revascularization procedures for treating anterior acute large vessel occlusion were performed using the Trevo ProVue as the first-line device at our institute between April 2015 and March 2016. Focusing on the involvement of the M1-M2 bifurcation with deployment or retrieval of the stent retriever, we regarded the middle cerebral artery M1 mid-portion as the boundary and divided the cases into proximal (n = 26) and distal (n = 24) groups...
December 27, 2016: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28025410/a-case-of-internal-carotid-thrombus-associated-with-brain-infarction
#18
Shota Sakai, Takeshi Uwatoko, Koji Ishitsuka, Hiroshi Sugimori
A 49-year-old man was transferred to our hospital with chief complaint of global aphasia and weakness of right upper and lower limbs. Brain MRI showed ultra-acute cerebral infarction in left anterior cerebral artery and middle cerebral artery territory and MRA showed occlusion of A2 and M2. Although t-PA was administrated intravenously, symptoms didn't improve and giant internal carotid thrombus (size 6 × 7 × 17 mm) was recognized at left internal carotid artery by carotid ultrasonography. After started anticoagulant therapy, thrombus was miniaturized gradually and finally disappeared...
December 23, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28025360/patterns-of-cerebral-blood-flow-modulation-during-painful-stimulation-in-fibromyalgia-a-transcranial-doppler-sonography-study
#19
Casandra I Montoro, Stefan Duschek, Cristina Muñóz Ladrón de Guevara, Gustavo A Reyes Del Paso
OBJECTIVE: This study analyzed the temporal dynamics of cerebral blood flow (CBF) modulations, during painful stimulation in fibromyalgia syndrome (FMS), using functional transcranial Doppler sonography. METHOD: Blood flow velocities were recorded bilaterally in the anterior (ACA) and middle (MCA) cerebral arteries of 24 FMS patients and 20 healthy individuals during exposure to painful pressure stimulation. Participants were presented with two stimulation blocks: a) fixed pressure (2...
December 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28024711/-progressive-hematoma-in-anterior-neck-after-endovascular-treatment-of-middle-cerebral-artery-aneurysm
#20
Aysun Ankay Yilbas, Cigdem Kanburoglu, Filiz Uzumcugil, Coskun Cifci, Ozge Ozen Saralp, Heves Karagoz, Seda Banu Akinci, Anil Arat
BACKGROUND: Cervical hematomas can lead to airway compromise, a life threatening condition, regardless of the cause. The following case is the first presentation of cervical hematoma as a complication of endovascular treatment of middle cerebral artery aneurysm. CASE REPORT: A 49 year-old woman was scheduled for stent placement under general anesthesia for middle cerebral artery aneurysm. Few days before intervention, acetyl salicylic acid and clopidogrel treatment was started...
December 23, 2016: Revista Brasileira de Anestesiologia
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