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https://www.readbyqxmd.com/read/28540180/hemoglobin-and-mean-platelet-volume-predicts-diffuse-t1-mri-white-matter-volume-decrease-in-sickle-cell-disease-patients
#1
Soyoung Choi, Adam M Bush, Matthew T Borzage, Anand A Joshi, William J Mack, Thomas D Coates, Richard M Leahy, John C Wood
Sickle cell disease (SCD) is a life-threatening genetic condition. Patients suffer from chronic systemic and cerebral vascular disease that leads to early and cumulative neurological damage. Few studies have quantified the effects of this disease on brain morphometry and even fewer efforts have been devoted to older patients despite the progressive nature of the disease. This study quantifies global and regional brain volumes in adolescent and young adult patients with SCD and racially matched controls with the aim of distinguishing between age related changes associated with normal brain maturation and damage from sickle cell disease...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28540136/erratum-a5-segment-aneurysm-of-the-anterior-cerebral-artery-imbedded-into-the-body-of-the-corpus-callosum-a-case-report
#2
(no author information available yet)
[This corrects the article on p. 18 in vol. 8, PMID: 28217397.].
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28540128/three-distal-anterior-cerebral-artery-aneurysms-in-the-same-branch-associated-with-five-additional-intracranial-aneurysms
#3
Danil A Kozyrev, Behnam Rezai Jahromi, Peeraphong Thiarawat, Joham Choque-Velasquez, Christopher Ludtka, Felix Goehre, Juha Hernesniemi
BACKGROUND: Multiple distal anterior cerebral artery (DACA) aneurysms appear as rare findings. Simultaneous treatment of such lesions can be particularly challenging. A report of three aneurysms on the same parent artery has not been reported before. We report a case of three DACA aneurysms treated within one microsurgical operation in a patient with eight aneurysms. CASE DESCRIPTION: A 62-year-old woman incidentally presented with multiple various size saccular aneurysms, including tree on the left DACA...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28539354/cerebral-oxygenation-and-regional-cerebral-perfusion-responses-with-resistance-breathing-during-central-hypovolemia
#4
Victoria L Kay, Justin Daniel Sprick, Caroline A Rickards
Resistance breathing improves tolerance to central hypovolemia induced by lower body negative pressure (LBNP), but this is not related to protection of anterior cerebral blood flow (indexed by mean middle cerebral artery velocity, MCAv). We hypothesized that inspiratory resistance breathing improves tolerance to central hypovolemia by maintaining cerebral oxygenation (ScO2), and protecting cerebral blood flow in the posterior cerebral circulation (indexed by posterior cerebral artery velocity, PCAv). Eight subjects (4M/4F) completed two experimental sessions of a presyncopal-limited LBNP protocol (3 mmHg/min onset rate) with and without (Control) resistance breathing via an impedance threshold device (ITD)...
May 24, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28530159/curative-and-adjunctive-avm-onyx-embolization-of-avms-through-the-choroidal-arteries
#5
Xianli Lv, Xiulan Hu, Wei Li, Hongwei He, Chuhan Jiang, Youxiang Li
Objective The anterior or posterior choroidal artery is often recruited to supply deep location arteriovenous malformations (AVMs). This study is to report curative and adjunctive AVM Onyx embolization through these arteries. Methods This study retrospectively reviewed six patients with cerebral AVMs who underwent endovascular embolization through the choroidal arteries between October 2015 and October 2016. Embolization was performed as a curative procedure in five patients and adjunctive procedure in one patient...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28527588/mechanical-thrombectomy-for-acute-ischemic-stroke-in-a-patient-with-concomitant-spontaneous-intracerebral-hemorrhage
#6
Stefano Forlivesi, Paolo Bovi, Manuel Cappellari
Data from randomized clinical trials and current guidelines suggest that patients with anterior circulation occlusion with contraindications to intravenous thrombolysis may benefit from direct mechanical thrombectomy. Nevertheless, no data are available on the efficacy and safety of direct mechanical thrombectomy in patients with concomitant spontaneous intracerebral hemorrhage. We report the case of a 51-year-old woman with a spontaneous intracerebral hemorrhage in the right parietal and occipital lobes, who experienced, 7 days later, an occlusion of the proximal left middle cerebral artery...
May 17, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28522673/systolic-blood-pressure-within-24%C3%A2-hours-after-thrombectomy-for-acute-ischemic-stroke-correlates-with-outcome
#7
Eva A Mistry, Akshitkumar M Mistry, Mohammad Obadah Nakawah, Nicolas K Khattar, Enzo M Fortuny, Aurora S Cruz, Michael T Froehler, Rohan V Chitale, Robert F James, Matthew R Fusco, John J Volpi
BACKGROUND: Current guidelines suggest treating blood pressure above 180/105 mm Hg during the first 24 hours in patients with acute ischemic stroke undergoing any form of recanalization therapy. Currently, no studies exist to guide blood pressure management in patients with stroke treated specifically with mechanical thrombectomy. We aimed to determine the association between blood pressure parameters within the first 24 hours after mechanical thrombectomy and patient outcomes. METHODS AND RESULTS: We retrospectively studied a consecutive sample of adult patients who underwent mechanical thrombectomy for acute ischemic stroke of the anterior cerebral circulation at 3 institutions from March 2015 to October 2016...
May 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28521359/quantitative-comparison-of-the-intraoperative-utility-of-indocyanine-green-and-fluorescein-videoangiographies-in-cerebrovascular-surgery
#8
Fumihiro Matano, Takayuki Mizunari, Yasuo Murai, Asami Kubota, Yu Fujiki, Shiro Kobayashi, Akio Morita
BACKGROUND: A quantitative analysis comparing indocyanine green videoangiography (ICG-VAG) and fluorescein videoangiography (FL-VAG) in cerebrovascular surgery has not been reported so far. OBJECTIVE: To clear the differences of characteristics of ICG-VAG and FL-VAG by quantitative assessment. METHODS: We prospectively analyzed results from 23 patients (3 males; mean age at surgery: 60.9 years, range: 14-75 years) at our hospital from August 2014 to July 2015...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28506213/voxel-wise-correlations-between-cognition-and-cerebral-blood-flow-using-arterial-spin-labeled-perfusion-mri-in-patients-with-alzheimer-s-disease-a-cross-sectional-study
#9
Tomohiro Kaneta, Omi Katsuse, Takamasa Hirano, Matsuyoshi Ogawa, Ayako Shihikura-Hino, Keisuke Yoshida, Toshinari Odawara, Yoshio Hirayasu, Tomio Inoue
BACKGROUND: To analyze voxel-wise correlation between cerebral blood flow (CBF) measured using ASL-MRI and cognition in patients with Alzheimer's disease (AD). METHODS: Forty-one patients diagnosed with AD or mild cognitive impairment due to AD were recruited for this study. CBF images were obtained using ASL-MRI (n = 41) with a post-labeling delay (PLD) of 1.5 and 2.5 s (PLD1.5 and PLD2.5, respectively) using a 3 T scanner, in addition to brain perfusion SPECT with N-isopropyl-4-[I-123]iodoamphetamine (n = 28)...
May 15, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28497183/rapid-contralateral-progression-of-focal-cerebral-arteriopathy-distinguished-from-rnf213-related-moyamoya-disease-and-fibromuscular-dysplasia
#10
Yoshio Araki, Yasushi Takagi, Yohei Mineharu, Hatasu Kobayashi, Susumu Miyamoto, Toshihiko Wakabayashi
BACKGROUND: Focal cerebral arteriopathy includes unifocal or multifocal lesions that are unilateral or bilateral. Large- and/or medium-sized vessels are involved and can be visualized on angiography. CASE REPORT: We report a case of cerebral infarction in a 9-year-old Japanese female who presented with a transient ischemic attack. Steno-occlusion involving the distal part of the internal carotid artery, proximal middle cerebral artery, and anterior cerebral artery was observed...
May 11, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28490152/keyhole-approach-and-neuroendoscopy-for-cerebral-aneurysms
#11
REVIEW
Won-Sang Cho, Jeong Eun Kim, Hyun-Seung Kang, Young-Je Son, Jae Seung Bang, Chang Wan Oh
Treating diseases in the field of neurosurgery has progressed concomitantly with technical advances. Here, as a surgical armamentarium for the treatment of cerebral aneurysms, the history and present status of the keyhole approach and the use of neuroendoscopy are reviewed, including our clinical data. The major significance of keyhole approach is to expose an essential space toward a target, and to minimize brain exposure and retraction. Among several kinds of keyhole approaches, representative keyhole approaches for anterior circulation aneurysms include superciliary and lateral supraorbital, frontolateral, mini-pterional and mini-interhemispheric approaches...
May 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28488952/aneurysm-tears-caused-by-an-aneurysm-clip-springing-from-the-clip-applier
#12
Yasuo Murai, Kazutaka Shirokane, Takao Kitamura, Fumihiro Matano, Akio Morita
We experienced two cases in which aneurysm clips sprang from the applier. In case 1, a subdural haematoma from a ruptured anterior cerebral artery aneurysm was detected. When the clip was opened for final positioning, it suddenly sprang from the applier and ruptured the aneurysm. In case 2, the clip suddenly sprang from the applier as the surgeon opened the applier to clip an unruptured anterior cerebral aneurysm. These accidental phenomena are rare but dangerous. We present these cases to help prevent similar occurrences in the future...
May 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28488044/bilateral-carotid-anterior-cerebral-artery-anastomoses-associated-with-bilateral-ophthalmic-arteries-arising-from-the-middle-meningeal-arteries-diagnosed-by-magnetic-resonance-angiography-a-case-report
#13
Akira Uchino, Naoko Saito, Fumitaka Yamane
Anastomosis between the ophthalmic segment of the internal carotid artery and the A1-A2 junction of the anterior cerebral artery (ACA), described as carotid-ACA anastomosis or infraoptic course of the ACA, is rare and known to demonstrate right-sided predominance. We report a case of bilateral carotid-ACA anastomoses associated with bilateral ophthalmic arteries arising from the sphenoidal branch of the middle meningeal artery that were diagnosed by magnetic resonance (MR) angiography. Identification of rare arterial variations on MR angiography requires careful scrutiny of source images...
May 9, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28485774/the-clinical-study-on-the-treatment-for-acute-cerebral-infarction-by-intra-arterial-thrombolysis-combined-with-mild-hypothermia
#14
L-L Ma, L Song, X-D Yu, T-X Yu, H Liang, J-X Qiu, L Tan
OBJECTIVE: This study was purposed to evaluate the clinical efficacy of the treatment for acute cerebral infarction by intra-arterial thrombolysis combined with mild hypothermia. PATIENTS AND METHODS: Thirty patients, diagnosed with acute anterior circulation cerebral infarction and admitted to the Hospital between January 2013 and September 2015, were randomly divided into the control group and the mild hypothermia group, each group comprising 15 cases. The treatment of intra-arterial thrombolysis combined with mild hypothermia was administered to the mild hypothermia group, while only the treatment of intra-arterial thrombolysis was performed on the control group...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28484930/heart-shaped-bilateral-medullary-pyramidal-infarction-as-a-pathognomonic-finding-of-anterior-spinal-artery-occlusion
#15
Sammy Searcy, Oluwaseun O Akinduro, Andrew Spector, Jang W Yoon, Benjamin L Brown, William D Freeman
BACKGROUND: Unilateral anterior spinal artery (ASA) occlusion resulting in bilateral medullary pyramidal (BMP) infarction is a rare and devastating stroke subtype. We present two cases highlighting the diagnostic and clinical challenges of BMP infarction. METHODS: Case reports and literature review. RESULTS: A 57-year-old man rapidly had severe vomiting and diarrhea 2 h after a meal. Examination revealed bulbar weakness and areflexic tetraplegia...
May 8, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28483029/value-of-3d-pseudo-continuous-arterial-spin-labeling-magnetic-resonance-perfusion-imaging-in-evaluating-posterior-circulation-ischemia-in-the-elderly
#16
Rui Jia, Xian Xu, Xinqiu Liu, Bing Wu, Weiwei Men, Ningyu An
Objective To investigate the value of 3D pseudo-continuous arterial spin labeling (3D-pCASL) magnetic resonance perfusion technique in evaluating posterior circulation ischemia (PCI) of the elderly beyond 80 years old and to offer the evidence of PCI of the elderly for clinical diagnosis. Methods Totally 53 male subjects older than 80 years were recruited in this study,including 20 subjects with clinically diagnosed PCI and 33 normal subjects. All the subjects underwent routine brain magnetic resonance imaging and 3D-pCASL sequence on a 3...
April 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28473801/cerebrovascular-manifestations-of-lyme-neuroborreliosis-a-systematic-review-of-published-cases
#17
REVIEW
Adam Garkowski, Joanna Zajkowska, Agata Zajkowska, Alina Kułakowska, Olga Zajkowska, Bożena Kubas, Dorota Jurgilewicz, Marcin Hładuński, Urszula Łebkowska
BACKGROUND: Lyme neuroborreliosis (LNB) is a disease caused by spirochete Borrelia burgdorferi, involving the nervous system. It usually manifests as lymphocytic meningoradiculitis, but in rare cases, it can also lead to cerebrovascular complications. We aimed to perform a systematic review of all reported cases of LNB complicated by central nervous system vasculitis and stroke or transient ischemic attack (TIA). MATERIALS AND METHODS: We conducted a systematic review of literature between May 1987 and December 2016 with patients who presented with cerebrovascular course of LNB...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28472090/test-repositioning-for-functional-assessment-of-neurological-outcome-after-experimental-stroke-in-mice
#18
Macarena Hernández-Jiménez, Carolina Peña-Martínez, María Del Carmen Godino, Jaime Díaz-Guzmán, María Ángeles Moro, Ignacio Lizasoain
Stroke is a cerebrovascular pathology for which the only approved treatment is fibrinolysis. Several studies have focused on the development of new drugs but none has led to effective therapies to date, due, among others, to the difficulty to evaluate clinical deficits in experimental animal models. The present study aims to explore the applicability of known behavioral tests not commonly used in ischemia for the neurological assessment of mice after experimental stroke in different brain areas. A total of 225 CD1 male mice were randomly assigned to permanent middle cerebral artery occlusion by ligature (pMCAO) or permanent anterior cerebral artery occlusion by photothrombosis (pACAO) models...
2017: PloS One
https://www.readbyqxmd.com/read/28465270/assessment-of-the-temporopolar-artery-as-a-donor-artery-for-intracranial-to-intracranial-bypass-to-the-middle-cerebral-artery-anatomical-feasibility-study
#19
Ali Tayebi Meybodi, Michael T Lawton, Dylan Griswold, Pooneh Mokhtari, Andre Payman, Halima Tabani, Sonia Yousef, Olivia Kola, Arnau Benet
BACKGROUND: Intracranial-intracranial bypass is a valuable cerebral revascularization option. Despite several advantages, one of the main shortcomings of the intracranial-intracranial bypass is the possibility of ischemic complications of the donor artery. However, when sacrificed, the temporopolar artery is not associated with major neurological deficits. We sought to define the role of TPA as a donor for revascularization of the middle cerebral artery (MCA). METHODS: A Pterional craniotomy was performed on 14 specimens...
April 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28465268/intracranial-blood-flow-changes-in-patients-with-high-grade-severe-carotid-artery-stenosis-after-stenting
#20
Lei Huang, Wenjie Cao, Liang Ge, Gang Lu, Xiaolong Zhang, Daoying Geng
OBJECTIVE: We investigated whether the cerebral hemodynamic changes of pre- and poststenting in patients with severe carotid stenosis differ by stenosis grades. MATERIALS AND METHODS: We prospectively recruited patients who underwent carotid artery stenting (CAS) after acute ischemic stroke from June 2014 to December 2015. We compared the mean relative cerebral blood flow changes (rCBF) (measured by whole-brain computed tomography [CT] perfusion) pre- and poststenting in patients with high-grade severe stenosis (HGSS 90%-99%) versus patients with low-grade severe stenosis (LGSS 70%-89%)...
April 29, 2017: World Neurosurgery
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