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cerebral angiography

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https://www.readbyqxmd.com/read/28731396/contralateral-posterior-interhemispheric-approach-to-deep-medial-parietooccipital-vascular-malformations-surgical-technique-and-results
#1
Jan-Karl Burkhardt, Ethan A Winkler, Michael T Lawton
OBJECTIVE Deep medial parietooccipital arteriovenous malformations (AVMs) and cerebral cavernous malformations (CCMs) are traditionally resected through an ipsilateral posterior interhemispheric approach (IPIA), which creates a deep, perpendicular perspective with limited access to the lateral margins of the lesion. The contralateral posterior interhemispheric approach (CPIA) flips the positioning, with the midline positioned horizontally for retraction due to gravity, but with the AVM on the upper side and the approach from the contralateral, lower side...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28730951/penumbra-and-re-canalization-acute-computed-tomography-in-ischemic-stroke-evaluation-practise-study-protocol
#2
Salwa El-Tawil, Joanna Wardlaw, Ian Ford, Grant Mair, Tom Robinson, Lalit Kalra, Keith W Muir
Rationale Multimodal imaging, including computed tomography angiography and computed tomography perfusion imaging, yields additional information on intracranial vessels and brain perfusion and can differentiate between ischemic core and penumbra which may affect patient selection for intravenous thrombolysis. Hypothesis The use of multimodal imaging will increase the number of patients receiving intravenous thrombolysis and lead to better treatment outcomes. Sample size 400 patients. Methods and design PRACTISE is a prospective, multicenter, randomized, controlled trial in which patients presenting within 4...
August 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28730843/clinical-value-of-st-segment-change-after-return-of-spontaneous-cardiac-arrest-and-emergent-coronary-angiography-in-patients-with-out-of-hospital-cardiac-arrest-diagnostic-and-therapeutic-importance-of-vasospastic-angina
#3
Kazuya Tateishi, Daisuke Abe, Tooru Iwama, Yuichi Hamabe, Kazutaka Aonuma, Akira Sato
BACKGROUND: We investigated the association between initial ST-segment change after return of spontaneous circulation (ROSC) and the incidence of acute coronary lesions in patients with out-of-hospital cardiac arrest (OHCA), and clinical outcomes of patients with OHCA caused by vasospastic angina pectoris (VSA). METHODS: Among 2779 OHCA patients in our institution, all patients with ROSC underwent emergent coronary angiography (CAG) except for those with an obvious extra-cardiac cause of OHCA...
July 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28724339/influence-of-cerebrovascular-reactivity-on-outcome-of-the-patients-with-%C3%A2-50-symptomatic-unilateral-middle-cerebral-artery-stenosis
#4
Weiqing Zhang, Yanwei Yin, Yingqian Zhang, Fen Yang, Wenqian Shi, Dawei Chen, Chen Song, Huiping Shi, Xuanzhu Zhao, Jin Shi
Cerebrovascular reactivity (CVR) reflects the vasodilatory reserve of cerebral resistance vessels, which is an important marker for assessing cerebrovascular disease. The present study is to investigate whether CVR impairment increases adverse long-term outcome risk of patients with ≥ 50% symptomatic unilateral middle cerebral artery (MCA) stenosis (ischemic stroke (IS) or transient ischemic attack (TIA)). Digital subtraction angiography (DSA) was used to assess the degree of stenosis, and perfusion CT and 5% CO2 inhalation were adopted to evaluate CVR...
July 20, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28720743/-usefulness-of-edoxaban-for-deep-cerebral-venous-sinus-thrombosis-with-hemorrhagic-infarction-a-case-report
#5
Takeo Amemiya, Toshio Uesaka, Katsuharu Kameda, Junji Uno, Shintaro Nagaoka, Yoshiaki Ikai, Hidefuku Gi
We describe a case of deep cerebral venous sinus thrombosis(DCVST)that was successfully treated by oral administration of the Xa inhibitor edoxaban. A 53-year-old man was admitted to our hospital because of a headache and undifferentiated dizziness. Computed tomography(CT)demonstrated a low-density area in the bilateral thalamus and high-density lesions in the internal cerebral veins(ICVs)and vein of Galen. Magnetic resonance imaging with diffusion-weighted images detected areas of hyperintensity in the bilateral thalamus...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28720742/-two-cases-of-ruptured-blood-blister-like-aneurysm-treated-with-x-ray-angiography-perfusion-xap-analysis
#6
Shoichi Tani, Hirotoshi Imamura, Katsunori Asai, Kampei Shimizu, Hidemitsu Adachi, So Tokunaga, Takayuki Funatsu, Mikiya Beppu, Keita Suzuki, Hiromasa Adachi, Tomohiro Okuda, Yuichi Matsui, Yasunori Yoshida, Shuhei Kawabata, Ryo Akiyama, Kazufumi Horiuchi, Nobuyuki Sakai
Two cases of ruptured blood blister-like internal carotid artery aneurysms for which low flow bypass was sufficient to attain successful treatment of trapping are reported. In the acute stage of rupture, it is troublesome to perform accurate examinations of tolerance to ischemia like balloon occlusion test(BOT)for estimating the required amount of bypass flow. In our cases, X-ray angiography perfusion(XAP)analysis was introduced, which could be performed in a couple dozen seconds without room-to-room transfer of patients, following the ordinary examination of diagnostic digital subtraction angiography...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28720741/-transvenous-embolization-by-direct-puncture-of-the-superior-sagittal-sinus-using-indocyanine-green-icg-videoangiography-for-treatment-of-dural-arteriovenous-fistula-of-the-transverse-sigmoid-sinus-a-case-report
#7
Jo Matsuzaki, Kenichi Kono, Arisa Umesaki, Yojiro Kashimura, Hiroaki Matsumoto, Tomoaki Terada
We report a case of dural arteriovenous fistula at the left transverse sinus and sigmoid sinus(TS-dAVF), which was treated with transvenous embolization(TVE)by direct puncture of the superior sagittal sinus(SSS)under indocyanine green(ICG)fluoroscopic guidance. A 71-year-old woman presented with pulsatile tinnitus and progressive dementia. A left TS-dAVF with retrograde SSS and cortical venous reflux(Cognard type IIb)was demonstrated on cerebral angiography. The left internal jugular vein and distal portion of the right transverse sinus were occluded...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28720528/postoperative-dilatation-of-superficial-temporal-artery-associated-with-transient-neurological-symptoms-after-direct-bypass-surgery-for-moyamoya-angiopathy
#8
Daizo Ishii, Takahito Okazaki, Toshinori Matsushige, Katsuhiro Shinagawa, Nobuhiko Ichinose, Shigeyuki Sakamoto, Kaoru Kurisu
OBJECTIVE: In moyamoya angiopathy (MMA), transient neurological symptoms (TNS) are occasionally observed after superficial temporal artery (STA)-middle cerebral artery (MCA) direct bypass surgery. The purpose of this study was to investigate the correlation between TNS and postoperative MR images, as well as perform a perfusion study. METHODS: A total of 52 hemispheres in 33 consecutive patients with MMA were reviewed. TNS were defined as reversible neurological dysfunction without any apparent intracranial infarction or hemorrhage...
July 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28717775/impact-of-early-coronary-angiography-on-the-survival-to-discharge-after-out-of-hospital-cardiac-arrest
#9
Jikyoung Shin, Eunsil Ko, Won Chul Cha, Tae Rim Lee, Hee Yoon, Sung Yeon Hwang, Tae Gun Shin, Min Seob Sim, Ik Joon Jo, Keun Jeong Song, Joong Eui Rhee, Yeon Kwon Jeong, Jin-Ho Choi
OBJECTIVE: Acute myocardial infarction is a major cause of out-of-hospital cardiac arrest (OHCA). Coronary angiography (CAG) enables diagnostic confirmation of coronary artery disease and subsequent revascularization, which might improve the prognosis of OHCA survivors. Non-randomized data has shown a favorable impact of CAG on prognosis for this population. However, the optimal timing of CAG has been debated. METHODS: The clinical outcomes of 607 OHCA patients registered in CAPTURES (Cardiac Arrest Pursuit Trial with Unique Registration and Epidemiologic Surveillance), a nationwide multicenter registry performed in 27 hospitals, were analyzed...
June 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28716583/quantitative-analysis-of-geometry-and-lateral-symmetry-of-proximal-middle-cerebral-artery
#10
Roman Peter, Bart J Emmer, Adriaan C G M van Es, Theo van Walsum
BACKGROUND: The purpose of our work is to quantitatively assess clinically relevant geometric properties of proximal middle cerebral arteries (pMCA), to investigate the degree of their lateral symmetry, and to evaluate whether the pMCA can be modeled by using state-of-the-art deformable image registration of the ipsi- and contralateral hemispheres. METHODS: Individual pMCA segments were identified, quantified, and statistically evaluated on a set of 55 publicly available magnetic resonance angiography time-of-flight images...
July 14, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28716281/-black-butterfly-sign-on-t2-weighted-and-susceptibility-weighted-imaging-a-novel-finding-of-chronic-venous-congestion-of-the-brain-stem-and-spinal-cord-associated-with-dural-arteriovenous-fistulas
#11
Mikako Enokizono, Noriko Sato, Minoru Morikawa, Yukio Kimura, Atsuhiko Sugiyama, Tomoko Maekawa, Daichi Sone, Daiki Takewaki, Tomoko Okamoto, Yuji Takahashi, Nobutaka Horie, Takayuki Matsuo
A dural arteriovenous fistula (DAVF) with spinal perimedullary venous drainage can cause progressive myelopathy, and it is sometimes incorrectly diagnosed as another spinal cord disease. Here we report the cases of three individuals with a DAVF (one craniocervical junction DAVF and two tentorial DAVFs) with progressive myelopathy showing unique magnetic resonance (MR) imaging findings. MR T2*WI or susceptibility-weighted imaging (SWI) demonstrated symmetrical dark signal intensity lesions predominantly in the dorsal aspect of medulla and the central gray matter of cervical spinal cord that showed the "black butterfly" silhouette...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28712904/pitfalls-in-diagnosis-and-management-of-testicular-choriocarcinoma-metastatic-to-the-brain-report-of-two-cases-and-review-of-literature
#12
REVIEW
Haydn Hoffman, Gentian Toshkezi, Joseph M Fullmer, Walter Hall, Lawrence S Chin
INTRODUCTION: Pure choriocarcinoma of the testes is a rare, aggressive germ cell tumor (GCT) that can metastasize to the brain. Although its prognosis has improved with the development of cisplatin-based chemotherapy regimens, cerebral metastases are prone to hemorrhage and are associated with high morbidity. Here, we present two cases of testicular choriocarcinoma with cerebral metastasis and discuss potential pitfalls in their diagnosis and management. We also review cases in the literature that feature these rare lesions...
July 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28712720/manual-aspiration-thrombectomy-in-patients-with-acute-stroke-related-calcified-cerebral-emboli
#13
Esther Koh, Hyo Sung Kwak, Gyung-Ho Chung
OBJECTIVE: The aim of this study was to evaluate the effectiveness of mechanical aspiration thrombectomy (MAT) in patients with acute ischemic stroke from calcified cerebral emboli. METHODS: Procedural results were reviewed for acute stroke patients with clinically neurological deficits who underwent recanalization from October 2012 through September 2015. Initial imaging studies and cerebral angiography were analyzed. RESULTS: Of the total number of patients with acute stroke, 5 patients were confirmed to have acute ischemic stroke by calcified cerebral emboli...
July 13, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28711538/cerebral-venous-sinus-thrombosis-secondary-to-idiopathic-hypertrophic-cranial-pachymeningitis-a-case-report-and-review-of-the-literature
#14
Kaiyuan Huang, Qingsheng Xu, Yuankun Ma, Renya Zhan, Jian Shen, Jianwei Pan
BACKGOUND AND IMPORTANCE: Idiopathic hypertrophic cranial pachymeningitis (IHCP) is a rare fibrosing inflammatory process involving the dura mater. Currently, there is no consensus on the treatments for IHCP, and the usefulness of immunosuppressive agents as a first-line option remains controversial. Cerebral venous sinus occlusion (CVSO) and cerebral venous sinus thrombosis (CVST) secondary to IHCP, which may cause progressive intracranial hypertension and venous obstructive parenchymal lesions, make the diagnosis and treatment of IHCP more complicated...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28710081/use-of-a-next-generation-multi-durometer-long-guide-sheath-for-triaxial-access-in-flow-diversion-experience-in-95-consecutive-cases
#15
Li-Mei Lin, Matthew T Bender, Geoffrey P Colby, Narlin B Beaty, Bowen Jiang, Jessica K Campos, Judy Huang, Rafael J Tamargo, Alexander L Coon
BACKGROUND: Intracranial access techniques in modern neurointerventions have shifted towards more robust access platforms. The long guide sheath is one of the building blocks of triaxial systems used in intracranial embolizations. Here we present our experience with the AXS Infinity LS long sheath in the triaxial platform for the implantation of the Pipeline embolization device (PED). METHODS: We retrospectively identified patients who underwent PED Flex treatment with the AXS Infinity LS at a single institution...
July 14, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28705843/headache-tia-and-subarachnoid-haemorrhage-dissecting-an-unusual-cause-for-stroke-like-symptoms
#16
Elliot T Dawson, Desmond A Brown, Alejandro A Rabinstein
We present a case of supraclinoid internal carotid artery dissection. Eleven months prior, the patient developed isolated periorbital pain and was diagnosed with giant-cell arteritis with iritis. The patient experienced recurrent spells concerning for transient ischaemic attacks and was transferred to our institution for endovascular intervention after head CT revealed an embolic infarct with a 'dense middle cerebral artery sign.' Digital subtraction angiography was negative for occlusion, instead demonstrating luminal stenosis and poststenotic dilatation...
July 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28700499/cerebrovascular-risk-factors-for-patients-with-cerebral-watershed-infarction-a-case-control-study-based-on-computed-tomography-angiography-in-a-population-from-southwest-china
#17
Mei-Xue Dong, Ling Hu, Yuan-Jun Huang, Xiao-Min Xu, Yang Liu, You-Dong Wei
To determine cerebrovascular risk factors for patients with cerebral watershed infarction (CWI) from Southwest China.Patients suffering from acute ischemic stroke were categorized into internal CWI (I-CWI), external CWI (E-CWI), or non-CWI (patients without CWI) groups. Clinical data were collected and degrees of steno-occlusion of all cerebral arteries were scored. Arteries associated with the circle of Willis were also assessed. Data were compared using Pearson chi-squared tests for categorical data and 1-way analysis of variance with Bonferroni post hoc tests for continuous data, as appropriate...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28698088/microsurgical-repair-of-ruptured-aneurysms-associated-with-moyamoya-pattern-collateral-vessels-of-the-middle-cerebral-artery-a-report-of-two-cases
#18
Min Lang, Nina Z Moore, Alex M Witek, Varun R Kshettry, Mark Bain
BACKGROUND: Patients with Moyamoya or other intracranial steno-occlusive disease are at risk for developing aneurysms associated with flow through collateral vessels. Because these lesions are rare, the optimal management remains unclear. Here, we describe two cases of microsurgical repair of ruptured collateral vessel aneurysms associated with middle cerebral artery (MCA) occlusion. CASE DESCRIPTION: The first patient was a 61-year-old male who presented with right frontal and intraventricular hemorrhage...
July 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28697030/severe-postpartum-headache-and-hypertension-caused-by-reversible-cerebral-vasoconstriction-syndrome-a-case-report
#19
Ed McIlroy, Rajamani Sethuraman, Reshma Woograsingh, Catherine Nelson-Piercy, Edward Gilbert-Kawai
Reversible cerebrovascular vasoconstriction syndrome is an uncommon condition that presents as severe headache and hypertension. Recent literature suggests a 1% incidence in postpartum headache cases. It can cause subarachnoid hemorrhages, cerebral ischemia, and seizures. It is often misdiagnosed as postdural puncture headache or preeclampsia. In this case, a postpartum woman, who had received epidural anesthesia for labor, presented 5 days postpartum with severe headache that did not resolve with an epidural blood patch...
July 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28695244/-diagnostic-and-treatment-standards-for-cerebral-sinus-venous-thrombosis-results-of-an-online-survey-of-german-stroke-units
#20
C Geisbüsch, P A Ringleb, O Busse, G F Hamann, S Nagel
BACKGROUND AND PURPOSE: The aim of this survey was to characterize the current diagnostic and therapeutic strategies for thrombosis of the cerebral sinus and veins (CVT) performed in German stroke units (SU). METHODS: Between September 2015 and January 2016 all clinical heads of certified SUs in Germany were invited to participate in a standardized online survey. The survey concentrated on the basic characteristics of SUs, diagnostic and therapeutic procedures and was made anonymous if so desired...
July 10, 2017: Der Nervenarzt
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