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https://www.readbyqxmd.com/read/29048544/valproic-acid-attenuates-the-risk-of-acute-respiratory-failure-in-patients-with-subarachnoid-hemorrhage
#1
Wen-I Liao, Wu-Chien Chien, Chi-Hsiang Chung, Jen-Chun Wang, Tzu-Tsao Chung, Shi-Jye Chu, Shih-Hung Tsai
Background: To determine whether the use of valproic acid (VPA) is associated with a decreased risk of acute respiratory failure (ARF) in patients with subarachnoid hemorrhage (SAH). Methods: The Taiwan National Health Insurance Research Database was used to analyze all patients newly diagnosed with SAH from 2000 to 2010. The VPA users were matched for age, gender and index date in 1:2 ratios with randomly selected non-VPA users as a comparison group. Multivariate Cox regression was used to identify the predictors of ARF and to compare the incidence rates of ARF among SAH patients using and not using VPA...
October 18, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29047355/hyperdynamic-csf-motion-profiles-found-in-idiopathic-normal-pressure-hydrocephalus-and-alzheimer-s-disease-assessed-by-fluid-mechanics-derived-from-magnetic-resonance-images
#2
Ken Takizawa, Mitsunori Matsumae, Naokazu Hayashi, Akihiro Hirayama, Satoshi Yatsushiro, Kagayaki Kuroda
BACKGROUND: Magnetic resonance imaging (MRI) does not only ascertain morphological features, but also measures physiological properties such as fluid velocity or pressure gradient. The purpose of this study was to investigate cerebrospinal fluid (CSF) dynamics in patients with morphological abnormalities such as enlarged brain ventricles and subarachnoid spaces. We used a time-resolved three dimensional phase contrast (3D-PC) MRI technique to quantitatively evaluate CSF dynamics in the Sylvian aqueduct of healthy elderly individuals and patients with either idiopathic normal pressure hydrocephalus (iNPH) or Alzheimer's disease (AD) presenting with ventricular enlargement...
October 18, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/29046469/-a-rare-case-of-ruptured-unruptured-miniature-aneurysms-originating-from-the-infundibular-dilatation-of-the-callosomarginal-artery-branching-from-the-infracallosal-a2-segment-of-the-azygos-anterior-cerebral-artery
#3
Shota Yoshimura, Chika Somagawa, Kei Satoh, Yutaka Fukuda, Takeshi Hiu, Tomonori Ono, Ryujiro Ushijima, Keisuke Toda, Keisuke Tsutsumi
We report the first case of two de novo miniature aneurysms(ruptured/unruptured)emerging from the infundibular dilatation(ID)of the callosomarginal artery, which branches from the infracallosal(A2)segment of the azygos anterior cerebral artery(AACA), in a 36-year-old woman. The patient had previously been diagnosed with a miniature, unruptured aneurysm, occurring in the A2 segment of the AACA, detected by CT angiography(CTA)at another hospital two years ago, and had been followed up with MR angiography(MRA)every 6 months...
October 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29046467/-clinical-characteristics-of-craniocervical-junction-arteriovenous-fistulas
#4
Michio Nakamura, Tadashi Miyazaki, Natsuki Shinozaki, Masaki Izumi, Takashi Itabashi
OBJECTIVE: Craniocervical junction arteriovenous fistulas(CCJ-AVFs)are extremely rare lesions that may result in both subarachnoid hemorrhage(SAH)and myelopathy. Diagnosis of CCJ-AVF is difficult and may be delayed due to variable clinical features and a spectrum of neuroradiological findings. To elucidate the clinical characteristics of CCJ-AVF, we analyzed the clinical symptoms, neuroimaging findings, and the results of surgical treatment in five patients. RESULTS: Among the five patients, four were diagnosed with dural AVFs, and the remaining patient was diagnosed with radicular AVF...
October 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29045853/symptomatic-vasospasms-as-a-life-threatening-complication-after-transsphenoidal-surgery
#5
Katharina Osterhage, Patrick Czorlich, Till R Burkhardt, Roman Rotermund, Ulrich Grzyska, Jörg Flitsch
OBJECTIVE: To identify symptomatic vasospasms as a rare complication after pituitary surgery with emphasis on management and outcome. DESIGN AND METHODS: In a retrospective design, 1997 patient charts undergoing microscopic transsphenoidal surgery from 2008 till 2016 were retrospectively analyzed regarding postoperative vasospastic events, its' clinical management, and neurological outcome. RESULTS: Four patients (0.2%) were identified, who developed neurological deficits in the postoperative phase caused by proven vasospasms due to subarachnoid hemorrhage (SAH)...
October 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29044603/comorbid-masticatory-impairment-delays-recovery-from-acute-cerebral-ischemia-and-locomotor-hypoactivity-after-subarachnoid-hemorrhage-in-mice
#6
Ikuho Kojima, Tatsushi Mutoh, Kazumasu Sasaki, Yasuko Tatewaki, Yasuyuki Taki, Tatsuya Ishikawa
Tooth loss and related changes in the functionality may lead to worse outcome of stroke patients, but the link involved in this pathway remains unclear. This study aimed to determine the effect of comorbid masticatory impairment on acute cerebral ischemia and neurobehavioral outcome after experimental subarachnoid hemorrhage (SAH). Thirty C57BL/6 mice with (molar-less) or without (control) prior treatment of cutting off the upper molars (separated by at least one week), were subjected to SAH by endovascular perforation...
October 17, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29043545/early-brain-injury-associated-with-systemic-inflammation-after-subarachnoid-hemorrhage
#7
Jude Savarraj, Kaushik Parsha, Georgene Hergenroeder, Sungho Ahn, Tiffany R Chang, Dong H Kim, H Alex Choi
BACKGROUND: Early brain injury (EBI) after aneurysmal subarachnoid hemorrhage (aSAH) is defined as brain injury occurring within 72 h of aneurysmal rupture. Although EBI is the most significant predictor of outcomes after aSAH, its underlying pathophysiology is not well understood. We hypothesize that EBI after aSAH is associated with an increase in peripheral inflammation measured by cytokine expression levels and changes in associations between cytokines. METHODS: aSAH patients were enrolled into a prospective observational study and were assessed for markers of EBI: global cerebral edema (GCE), subarachnoid hemorrhage early brain edema score (SEBES), and Hunt-Hess grade...
October 17, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/29042528/-a-case-of-ruptured-anterior-communicating-artery-aneurysm-with-visual-field-defects-and-deteriorating-to-severe-vision-loss
#8
Kazuki Sakakura, Go Ikeda, Yasunobu Nakai, Noriyuki Watanabe, Masanari Shiigai, Kazuya Uemura, Tetsuya Yamamoto, Akira Matsumura
Although Terson's syndrome is a well-known cause of vision loss due to intracerebral aneurysm rupture, optic nerve neuropathy can also occur because of other causes. Here, we report such a case, i.e., a ruptured anterior communicating artery aneurysm accompanied by vision loss and visual field disturbances due to a cause other than Terson's syndrome. A 47-year-old man presented with right superior altitudinal hemianopia. Computed tomography (CT) showed subarachnoid hemorrhage (SAH), and three-dimensional CT angiography revealed an anterior communicating artery aneurysm...
October 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29041920/intraoperative-continuous-cerebral-microcirculation-measurement-in-patients-with-aneurysmal-subarachnoid-hemorrhage-preliminary-data-on-the-early-administration-of-magnesium-sulfate
#9
Bjoern Sommer, Cornelia S Weidinger, Dennis Wolf, Michael Buchfelder, Hubert Schmitt
BACKGROUND: In patients with subarachnoid hemorrhage (SAH), vasospasm remains one of the major complications. The application of intravenous magnesium sulfate (MgSO4) has been under discussion to prevent cerebral ischemia. Our aim was to examine the impact of early MgSO4 administration on local cerebral microcirculation during microsurgical clipping of SAH-related aneurysms. METHODS: The non-invasive laser-Doppler spectrophotometry system "Oxygen-to-See (O2C)" was used in 14 consecutive patients (11 female, 3 male, median age 56...
October 17, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/29041013/maternal-aneurysmal-subarachnoid-hemorrhage-during-pregnancy-as-an-interdisciplinary-task
#10
Friederike Sophie Fritzsche, Jan Regelsberger, Nils Ole Schmidt, Jakob Müller, Jan Hendrik Buhk, Anke Diemert, Manfred Westphal, Tobias Martens
Maternal aneurysmal subarachnoid hemorrhage (aSAH) during pregnancy presents a challenge regarding treatment and management. Due to the limited number of cases there are no treatment guidelines available. Thus, treatment is usually done on a case-by-case basis. Here we report on four cases of aSAH during pregnancy, describing the different management strategies and suggesting a possible treatment algorithm. Patients treated between 2003 and 2013 in our center were included in this retrospective study. Clinical data focused on time management concerning gestation week (GW), microsurgical or endovascular treatment, and outcome of the patients and the fetuses...
October 17, 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/29039724/paravascular-spaces-at-the-brain-surface-low-resistance-pathways-for-cerebrospinal-fluid-flow
#11
Beatrice Bedussi, Mitra Almasian, Judith de Vos, Ed VanBavel, Erik Ntp Bakker
Clearance of waste products from the brain is of vital importance. Recent publications suggest a potential clearance mechanism via paravascular channels around blood vessels. Arterial pulsations might provide the driving force for paravascular flow, but its flow pattern remains poorly characterized. In addition, the relationship between paravascular flow around leptomeningeal vessels and penetrating vessels is unclear. In this study, we determined blood flow and diameter pulsations through a thinned-skull cranial window...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29039533/sirt1-activation-by-resveratrol-reduces-brain-edema-and-neuronal-apoptosis-in-an-experimental-rat-subarachnoid-hemorrhage-model
#12
Cong Qian, Jianxiang Jin, Jingyin Chen, Jianru Li, Xiaobo Yu, Hangbo Mo, Gao Chen
Early brain injury is considered to be a major risk that is related to the prognosis of subarachnoid hemorrhage (SAH). In SAH model rats, brain edema and apoptosis have been closely related with death rate and neurological function. Sirtuin 1 (SIRT1) was reported to be involved in apoptosis in cerebral ischemia and brain tumor formation through p53 deacetylation. The present study aimed to evaluate the role of SIRT1 in a rat endovascular perforation model of SAH. The SIRT1 activator resveratrol (RES) was administered 48 h prior to SAH induction and the SIRT1 inhibitor Sirtinol (SIR) was used to reverse the effects of RES on SIRT1 expression...
October 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29038080/a-stent-retrieving-into-an-aspiration-catheter-with-proximal-balloon-asap-technique-a-technique-of-mechanical-thrombectomy
#13
Shunsaku Goto, Tomotaka Ohshima, Kojiro Ishikawa, Taiki Yamamoto, Shinji Shimato, Toshihisa Nishizawa, Kyozo Kato
PURPOSE: The best technique for the first attempt at mechanical thrombectomy for acute ischemic stroke is a still matter of debate. In this study, we evaluated the efficacy of a stent-retrieving into an aspiration catheter with proximal balloon (ASAP) technique that employs a series of thrombus extraction by withdrawing the stent retriever into the aspiration catheter, and continuous aspiration from the aspiration catheter in the first attempt. METHODS: We performed a retrospective analysis of 42 consecutive patients with acute ischemic stroke caused by occlusions in the anterior circulation, who were treated with the ASAP technique at our institution...
October 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29038077/the-effects-of-red-blood-cell-transfusion-on-functional-outcome-after-aneurysmal-subarachnoid-hemorrhage
#14
Monisha A Kumar, Joshua Levine, Jennifer Faerber, J Paul Elliott, H Richard Winn, Sean Doerfler, Peter Le Roux
BACKGROUND: The optimal red blood cell transfusion (RBCT) trigger for patients with aneurysmal subarachnoid hemorrhage (SAH) is unknown. In patients with cerebral vasospasm, anemia may increase susceptibility to ischemic injury; conversely, RBCT may worsen outcome given known deleterious effects. OBJECTIVE: To examine the association between RBCT, delayed cerebral ischemia, vasospasm, and outcome after SAH. METHODS: 421 consecutive SAH patients, admitted to a Neurocritical Care Unit at a University affiliated hospital and who underwent surgical occlusion of their ruptured aneurysm were retrospectively identified from a prospective observational database...
October 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29037840/comparison-of-plasma-copeptin-and-multiple-biomarkers-for-assessing-prognosis-of-patients-with-aneurysmal-subarachnoid-hemorrhage
#15
Yong-Ke Zheng, Xiao-Qiao Dong, Quan Du, Hao Wang, Ding-Bo Yang, Qiang Zhu, Zhi-Hao Che, Yong-Feng Shen, Li Jiang, Wei Hu, Ke-Yi Wang, Wen-Hua Yu
BACKGROUND: Increased plasma copeptin concentrations are related to poor prognosis after aneurysmal subarachnoid hemorrhage (aSAH). The aim of this study was to assess prognostic significance of plasma copeptin detection compared with glial fibrillary astrocyte protein, myelin basic protein, S100B, phosphorylated axonal neurofilament subunit H, neuron-specific enolase, tau and ubiquitin carboxyl-terminal hydrolase L1 in aSAH. METHODS: We detected plasma concentrations of the aforementioned biomarkers in 105 healthy controls using ELISA...
October 13, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29037005/stroke-epidemiology-in-south-east-and-south-east-asia-a-review
#16
REVIEW
Narayanaswamy Venketasubramanian, Byung Woo Yoon, Jeyaraj Pandian, Jose C Navarro
Asia, which holds 60% of the world's population, comprises some developing countries which are in economic transition. This paper reviews the epidemiology of stroke in South, East and South-East Asia. Data on the epidemiology of stroke in South, East, and South-East Asia were derived from the Global Burden of Disease study (mortality, disability-adjusted life-years [DALYs] lost because of stroke), World Health Organization (vascular risk factors in the community), and publications in PubMed (incidence, prevalence, subtypes, vascular risk factors among hospitalized stroke patients)...
September 2017: Journal of Stroke
https://www.readbyqxmd.com/read/29031080/endovascular-therapy-for-vasospasm-secondary-to-subarachnoid-hemorrhage-a-meta-analysis-and-systematic-review
#17
REVIEW
Zhong Yao, Xin Hu, Chao You
Endovascular therapy has been used as an alternative treatment for vasospasm following subarachnoid hemorrhage. The effectiveness and safety of endovascular therapy are still controversial. We performed a systematic review and meta-analysis to identify any advantage of endovascular therapy over traditional medical treatment. We systematically reviewed related English publications by searching PubMed, Ovid, Cochrane library, and Web of Science up to May 2017.The risk ratios (RR) and 95% confidence intervals (CI) were synthesized with fixed effect model...
October 9, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29030499/unexpected-early-radiographic-findings-associated-with-a-ruptured-blister-like-carotid-wall-aneurysm
#18
James West, Jasmeet Singh, Stacey Q Wolfe, Kyle M Fargen
A 33-year-old man presented with aneurysmal subarachnoid hemorrhage from a ruptured, blister-type sidewall internal carotid artery (ICA) aneurysm. Balloon-assisted coiling was performed with residual neck. He subsequently developed severe vasospasm requiring intra-arterial therapies on multiple occasions, during which it was noted that despite widespread vasospasm, a focal segment of the ICA at the site of the aneurysm showed no significant spasm, suggesting underlying vessel abnormality. He was discharged without deficit and scheduled for flow diversion given concern over this potentially pathologic segment of vessel...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29030496/ruptured-aneurysm-of-the-artery-of-adamkiewicz-is-conservative-management-the-standard-of-treatment-in-the-current-era
#19
Pedro Aguilar-Salinas, Jussie Lima, Leonardo B C Brasiliense, Ricardo A Hanel, Eric Sauvageau
Spinal aneurysms are rare lesions, and their natural history is not well known. In particular, aneurysms arising from the artery of Adamkiewicz (AA) are an extremely rare phenomenon, and given the lack of solid evidence its management remains unclear. We present the case of a 54-year-old woman with spinal subarachnoid hemorrhage. A spinal angiogram demonstrated a fusiform aneurysm arising from the AA. Based on the location, the absence of evident collateral circulation to the anterior spinal artery, and the available literature supporting spontaneous thrombosis, we opted for conservative management...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29030464/computed-tomography-interobserver-agreement-in-the-assessment-of-aneurysmal-subarachnoid-hemorrhage-and-predictors-for-clinical-outcome
#20
Peter Y M Woo, Teresa P K Tse, Robert S K Chan, Lianne N Y Leung, Stephanie K K Liu, Andrew Y T Leung, Hoi-Tung Wong, Kwong-Yau Chan
BACKGROUND: The severity of aneurysmal subarachnoid hemorrhage (SAH) is often assessed by the clinical state of the patient on presentation, but radiological evaluation of the extent of hemorrhage has rarely been examined in the literature. Several CT scan based grading systems exist yet only a few studies have investigated interobserver agreement. We evaluated five radiological grading systems and assessed their clinical value for early prognostication. METHODOLOGY: This was a retrospective study of patients diagnosed with aneurysmal SAH with a CT scan performed within 72 hours of symptom onset...
November 2017: Journal of Neurointerventional Surgery
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