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https://www.readbyqxmd.com/read/27932749/-hemorrhage-from-an-angiographically-obliterated-arteriovenous-malformation-after-gamma-knife-radiosurgery-an-immunohistochemistry-study
#1
Saori Hamada, Daina Kashiwazaki, Tetsuhiro Kamo, Takahiro Tomita, Naoki Akioka, Naoya Kuwayama, Satoshi Kuroda
A 24-year-old woman was diagnosed with a cerebral arteriovenous malformation(AVM)in the right parietal lobe(Spetzler-Martin grade I). The AVM was treated with stereotactic radiosurgery and was observed to have completely disappeared 3 years after radiosurgery. At the age of 35 years, the patient complained of a headache, and was referred to our hospital. A plain CT scan demonstrated a large cyst with niveau formation in the right parietal lobe. Cerebral angiography identified no recurrence of AVM. However, contrast MRI revealed an enhanced lesion on the surface of the cyst...
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27932668/quantitative-flow-measurement-after-placing-a-flow-diverter-for-a-distal-internal-carotid-artery-aneurysm
#2
Chien-Wei Chen, Ho-Fai Wong, Yu-Ling Ye, Yao-Liang Chen, Wei-Liang Chen, Chang-Hsien Ou, Yuan-Hsiung Tsai
OBJECTIVES: To evaluate the differences in arterial flow after flow diverter placement using quantitative flow measurements based on digital subtraction angiography (DSA). METHODS: Between November 2013 and November 2015, all patients who had flow diverters placed for distal internal carotid artery (ICA) aneurysms were reviewed. Patients in whom the stent was placed across the ostia of the ophthalmic artery (OphA) and anterior choroidal artery (AChA) were enrolled...
December 8, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27931945/dural-arteriovenous-fistula-of-the-sinus-of-the-lesser-sphenoid-wing-presenting-with-pontine-hemorrhage-case-report
#3
Hideki Nakajima, Tomoya Ishiguro, Aiko Terada, Masaki Komiyama
BACKGROUND: Dural arteriovenous fistulas (DAVFs) of the sinus of the lesser sphenoid wing (SLSW) with leptomeningeal drainage are rare. We report a patient with a DAVF of the SLSW draining into the basal vein of Rosenthal (BVR) presenting with pontine hemorrhage. CASA DESCRIPTION: A 71-year-old man presented with sudden right hemisensory disturbance of the arm and leg. Brain computed tomography showed left pontine hemorrhage and cerebral angiography revealed a DAVF of the left SLSW...
December 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27931120/outcomes-of-csf-spectrophotometry-in-cases-of-suspected-subarachnoid-haemorrhage-with-negative-ct-two-years-retrospective-review-in-a-birmingham-hospital
#4
A Bakr, D Silva, R Cramb, G Flint, M Foroughi
AIM: The aim of this study was to evaluate the adherence to current guidelines for the investigation of suspected subarachnoid haemorrhage and the prevalence and outcome of computed tomography (CT)-negative aneurysmal subarachnoid haemorrhage. DESIGN: A retrospective review in a single large tertiary referral centre. SUBJECTS: A total of 796 patients, aged 16-90 years, who underwent lumbar puncture (LP) for suspected subarachnoid haemorrhage (SAH) following a negative or equivocal CT scan between January 2012 and November 2013 (23 months)...
December 8, 2016: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/27928391/a-moyamoya-patient-with-bilateral-consecutive-branch-retinal-vein-occlusion
#5
Hande Güçlü, Vuslat Pelitli Gurlu, Sadık Altan Ozal, Haluk Esgin
We describe a moyamoya (MMD) patient with bilateral consecutive branch retinal vein occlusion (BRVO). The patient had a medical history of severe headache, cranial haemorrhage, bilateral supraclinoid carotid artery occlusion, and "puff of smoke" collaterals on cerebral angiography and an encephalomyosynangiosis operation. On ophthalmic examination, he had superior temporal branch vein occlusion with intraretinal haemorrhage and visual acuity of 20/25 in the right eye. Twelve years later, he presented with superior temporal branch vein occlusion in the left eye and visual acuity of 20/60...
April 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27924799/collateral-flow-and-white-matter-disease-in-patients-with-internal-carotid-artery-occlusion
#6
Mami Ishikawa, Hitoshi Sugawara, Mutsumi Nagai, Gen Kusaka, Yuichi Tanaka, Heiji Naritaka
BACKGROUND: When an internal carotid artery (ICA) occludes, a patient may develop cerebral infarction (CI). We investigated whether CI caused by ICA occlusion (ICAO) is associated with collateral flow through the anterior and posterior communicating arteries (ACoA and PCoA). METHODS: In 100 patients with ICAO, we investigated CI and white matter disease by performing an MRI and the anatomy of the ACoA and PCoA were investigated by performing magnetic resonance angiography...
December 8, 2016: European Neurology
https://www.readbyqxmd.com/read/27924520/histopathological-features-of-middle-cerebral-artery-and-superficial-temporal-artery-from-patients-with-moyamoya-disease-and-enlightenments-on-clinical-treatment
#7
Shou-Jia Sun, Jian-Jian Zhang, Zheng-Wei Li, Zhong-Wei Xiong, Xiao-Lin Wu, Sheng Wang, Kai Shu, Jin-Cao Chen
The histopathological features of the middle cerebral artery (MCA) and superficial temporal artery (STA) from moyamoya disease (MMD) and their relationships with gender, age, angiography stage were explored. The causes and the clinical significance of vasculopathy of STA were also discussed. The clinical data and specimens of MCA and STA from 30 MMD patients were collected. Twelve samples of MCA and STA from non-MMD patients served as control group. Histopathological examination was then performed by measuring the thickness of intima and media, and statistical analysis was conducted...
December 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27923749/spinal-glomus-arteriovenous-malformation-presenting-with-a-subarachnoid-hemorrhage
#8
Pascal Jabbour, Badih Daou, Elias Atallah, Fadi Al-Saiegh, Kenan Alkhalili, Stavropoula Tjoumakaris
BACKGROUND AND IMPORTANCE: Spinal arteriovenous malformations (AVMs) are rare lesions that may cause serious neurologic morbidity. With the developments in endovascular technology and embolic materials, endovascular management of spinal AVMs has gained significant popularity. CLINICAL PRESENTATION: A 61-year-old female presented with the worst headache of her life, associated with an acute onset of nausea and vomiting and was shown to have a grade 2 subarachnoid hemorrhage on CT scan...
December 3, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27923226/intraoperative-tumoral-bleeding-of-hypervascular-medulloblastoma-after-ventricular-drainage-a-case-report
#9
Han-Seung Ryu, Tae-Young Jung, Moon-Soo Han, Seul-Ki Kim, Kyung-Hwa Lee
We report a rare case of intraoperative tumoral bleeding of a hypervascular medulloblastoma. A 12-year-old girl presented with dizziness and nausea. Brain magnetic resonance (MR) images revealed an approximately 4.2-cm enhanced mass on the cerebellar vermis associated with mild perilesional edema and increased cerebral blood volume. Angiography showed tumoral staining and developed occipital and circular dural sinuses in the venous phase. A suboccipital craniotomy was performed. To relieve the intracranial pressure, cerebrospinal fluid (CSF) was drained via a lateral ventricular catheter in the occipital horn...
December 7, 2016: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27920207/vascular-angular-remodeling-by-kissing-y-stenting-in-wide-necked-intracranial-bifurcation-aneurysms
#10
Katharina Melber, Dan Meila, Philipp Draheim, Dominik Grieb, Björn Greling, Martin Schlunz-Hendann, Friedhelm Brassel
INTRODUCTION: Single stent deployment leads to a change in vascular geometry in wide necked bifurcation aneurysms. In some complex cases, the use of the single stent technique might not be sufficient or may not be feasible. The kissing-Y stenting technique appears to be an alternative endovascular treatment option. The aim of this study was to evaluate the effects of the kissing-Y stenting technique on vascular angular remodeling. METHODS: 21 patients with wide necked intracranial bifurcation aneurysms at different sites (10 anterior communicating artery, 6 middle cerebral artery, 3 basilar artery, 1 vertebral artery/posterior inferior cerebellar artery, 1 internal carotid artery/posterior communicating artery) were treated with 44 closed cell stents (follow-up 2012-2016) using the kissing-Y stenting technique...
December 5, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27919794/diagnostic-utility-of-contrast-enhanced-3d-t1-weighted-imaging-in-acute-cerebral-infarction-associated-with-graves-disease
#11
Yasufumi Gon, Manabu Sakaguchi, Naoki Oyama, Hideki Mochizuki
Graves disease is rarely complicated with cerebrovascular steno-occlusive diseases. Previous studies have suggested several hypotheses for this occurrence, including excess thyroid hormone, which stimulates the sympathetic nervous system, which in turn causes an abnormal hemodynamic response with consequent atherosclerotic changes, and antithyroid antibodies cause local vascular inflammation in patients with Graves disease. However, radiological findings of vasculitis in patients with Graves disease and cerebral infarction remain less known...
December 2, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27919793/inter-rater-reliability-for-thrombolysis-in-cerebral-infarction-with-tici-2c-category
#12
Ondrej Volny, Petra Cimflova, Viktor Szeder
BACKGROUND AND PURPOSE: Thrombolysis in cerebral infarction (TICI) with 2b/3 (>50% of occluded territory/complete reperfusion) has been regarded as a successful angiographic outcome. To account for near-perfect angiographic results, the category TICI 2c (near-complete reperfusion) has been introduced. As the degree of inter-rater reliability for TICI with 2c category remains poorly studied, we strived to evaluate the agreement among stroke-treating specialists. METHODS: All consecutive patients, who underwent stent-retriever thrombectomy for acute ischemic stroke in the period between January 2014 and April 2016 at the Department of Neurointerventional Radiology, were analyzed...
December 2, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27917948/association-of-cortical-vein-filling-with-clot-location-and-clinical-outcomes-in-acute-ischaemic-stroke-patients
#13
Sonu Bhaskar, Andrew Bivard, Peter Stanwell, John R Attia, Mark Parsons, Michael Nilsson, Christopher Levi
Delay in cortical vein filling during the late-venous phase (delayed-LCVF) is characterized by opacification of cerebral veins despite contrast clearance from contralateral veins on dynamic computed tomography angiography (dCTA) in acute ischemic stroke (AIS) patients. The aim of the study was to investigate the associations of delayed-LCVF with clot location, reperfusion status at 24 hours, and 90-days functional outcome in AIS patients who received reperfusion therapy. A prospective cohort of AIS patients treated with intravenous thrombolysis was studied...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27911234/ventriculostomy-associated-hemorrhage-a-risk-assessment-by-radiographic-simulation
#14
Faith C Robertson, Muhammad M Abd-El-Barr, Srinivasan Mukundan, William B Gormley
OBJECTIVE Ventriculostomy entry sites are commonly selected by freehand estimation of Kocher's point or approximations from skull landmarks and a trajectory toward the ipsilateral frontal horn of the lateral ventricles. A recognized ventriculostomy complication is intracranial hemorrhage from cortical vessel damage; reported rates range from 1% to 41%. In this report, the authors assess hemorrhagic risk by simulating traditional ventriculostomy trajectories and using CT angiography (CTA) with venography (CTV) data to identify potential complications, specifically from cortical draining veins...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27903923/stent-assisted-coil-embolization-of-a-recurrent-posterior-cerebral-artery-aneurysm-following-surgical-clipping
#15
Tomonori Takeshita, Tomoaki Nagamine, Kohei Ishihara, Yasuhiko Kaku
Posterior cerebral artery (PCA) aneurysms are rare, and direct surgery of these is considered difficult. Coil embolization of PCA aneurysms is becoming popular. However, it is difficult to completely obliterate the aneurysm while preserving the flow of the parent artery in large or giant PCA aneurysms with a wide neck with this technique. We report a case of a large and wide-necked PCA aneurysm with multiple recurrences following successful surgical clipping and coil embolization.A 77-year-old man with a large unruptured right PCA (P2) aneurysm was successfully treated by surgical clipping...
November 30, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27896904/contrast-induced-encephalopathy-following-cardiac-catheterization
#16
Roberto Spina, Neil Simon, Romesh Markus, David Wm Muller, Krishna Kathir
OBJECTIVES: To describe the epidemiology, pathophysiology, clinical presentation, and management of contrast-induced encephalopathy (CIE) following cardiac catheterization. BACKGROUND: CIE is an acute, reversible neurological disturbance directly attributable to the intra-arterial administration of iodinated contrast medium. METHODS: The PubMed database was searched and all cases in the literature were retrieved and reviewed. RESULTS: 52 reports of CIE following cardiac catheterization were found...
November 29, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27890881/non-convulsive-status-epilepticus-with-takotsubo-cardiomyopathy-a-case-report
#17
Jyunichi Uemura, Yuko Wada, Yoshiki Yagita
A 61-year-old woman was admitted to our hospital for speech disturbance and mild consciousness impairment. Despite the absence of seizures or loss of consciousness, electroencephalographic abnormalities were observed, and the cerebral blood flow scintigraphy revealed an increase in cerebral blood flow in the left temporal lobe. These findings suggested a diagnosis of non-convulsive status epilepticus. On the third day, a twelve-lead electrocardiogram showed a negative T-wave in I, II, aVf, and V2-6. Moreover, a transthoracic echocardiogram revealed left ventricular apical akinesis...
November 25, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27890763/positional-occlusion-of-vertebral-artery-due-to-cervical-spondylosis-as-rare-cause-of-wake-up-stroke-report-of-2-cases
#18
Hirofumi Nishikawa, Fumitaka Miya, Yotaro Kitano, Genshin Mori, Shigetoshi Shimizu, Hidenori Suzuki
BACKGROUND: Positional compression of the vertebral artery (VA) due to cervical spondylosis is an uncommon cause of stroke. We report two cases of cervical spondylosis causing wake-up stroke, which is extremely rare. CASE DESCRIPTION: The first case was a 78-year-old woman who presented with vertigo and vomiting lasting from waking up. Magnetic resonance (MR) images and angiography documented right cerebellar infarction, and stenosis of the right cervical VA. Dynamic angiography revealed that the right VA was occluded when her neck was extended or rotated to the right...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27890748/small-unruptured-intracranial-aneurysm-%C3%A2-5mm-associated-with-epilepsy-report-of-2-cases-and-literature-review
#19
Fuxin Lin, Hui Wan, Dezhi Kang, Yuanxiang Lin
BACKGROUND: Due to the continuing improvements in imaging technology, an increasing number of epileptogenic small (≤5mm) unruptured intracranial aneurysms (sUIA) are being diagnosed since 2000. However, they are not systematically described and reviewed until now. CASE DESCRIPTION AND THE LITERATURE REVIEW: We reported 2 patients with sUIA who initially presented with complex partial seizures (CPS). Scalp electroencephalography (EEG) showed the seizures activity arising from the mesial temporal/frontal areas, but conventional magnetic resonance imaging (MRI) scans were normal in both patients...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27890105/use-of-postmortem-computed-tomography-angiography-to-detect-vascular-injuries-accompanying-skull-base-fracture
#20
Hikaru Kuninaka, Yoichiro Takahashi, Rie Sano, Keiko Takahashi, Rieko Kubo, Yoshihiko Kominato, Hiroyuki Takei, Susumu Kobayashi, Takehiro Shimada, Hiroyuki Tokue, Sachiko Awata, Satoshi Hirasawa
A 58-year-old woman who had presented for upper gastrointestinal barium examination accidently slipped from the movable bed, and her head became compressed between the end of the bed and the side wall. She suffered massive bleeding from her nose and ear followed by cardiac arrest, and subsequent attempts at cardiopulmonary resuscitation failed. A medicolegal autopsy was performed to reveal the cause of death, as part of the investigation of the accident. During the autopsy, postmortem cerebral CT angiography was carried out by injection of 5% gelatin-barium emulsion as a radiopaque contrast medium into the bilateral common carotid arteries, demonstrating transudation of the contrast medium into the right acoustic meatus and the sphenoidal sinus cavity...
November 2016: Legal Medicine
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