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Subarachnoid hemorrhage

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https://www.readbyqxmd.com/read/27933551/pentoxifylline-alleviates-early-brain-injury-after-experimental-subarachnoid-hemorrhage-in-rats-possibly-via-inhibiting-tlr-4-nf-%C3%AE%C2%BAb-signaling-pathway
#1
Da-Yong Xia, Hua-Sheng Zhang, Ling-Yun Wu, Xiang-Sheng Zhang, Meng-Liang Zhou, Chun-Hua Hang
Early brain injury (EBI) after subarachnoid hemorrhage (SAH) generally causes significant and lasting damage. Pentoxifylline (PTX), a nonselective phosphodiesterase inhibitor, has shown anti-inflammatory and neuroprotective properties in several brain injury models, but the role of PTX with respect to EBI following SAH remains uncertain. The purpose of this study was to investigate the effects of PTX on EBI after SAH in rats. Adult male Sprauge-Dawley rats were randomly assigned to the sham and SAH groups. PTX (30 or 60 mg/kg) or an equal volume of the administration vehicle (normal saline) was administrated at 30 min intervals following SAH...
December 8, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27933032/bifurcation-type-and-larger-low-shear-area-are-associated-with-rupture-status-of-very-small-intracranial-aneurysms
#2
Yisen Zhang, Zhongbin Tian, Linkai Jing, Ying Zhang, Jian Liu, Xinjian Yang
BACKGROUND: Characterization of the risk factors for rupture of very small intracranial aneurysm (VSIA, ≤3 mm) is clinically valuable, since VSIAs are implicated in subarachnoid hemorrhage. The aim of this study was to identify morphological and hemodynamic parameters that independently characterize the rupture status of VSIAs. METHODS: We conducted a retrospective study of consecutive VSIAs between September 2010 and February 2014 in our institute. A series of morphologic and hemodynamic parameters were evaluated using computational fluid dynamics, based on patient-specific three-dimensional geometrical models...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27932745/-association-of-deep-venous-thrombosis-with-d-dimer-values-in-patients-with-hemorrhagic-stroke
#3
Atsushi Arai, Junji Koyama, Taichiro Imahori, Ryoji Shiomi, Hirofumi Iwahashi, Kazuhiro Tanaka, Eiji Kohmura
Pulmonary embolism(PE)in the early phase of stroke worsens the prognosis. It is necessary to detect deep venous thrombosis(DVT)to avoid PE. We conducted the D-dimer screening in order to detect DVT at an earlier stage. We retrospectively analyzed the clinical data of patients with hemorrhagic stroke who were admitted to the local stroke center, and investigated the complication rates of DVT, PE, D-dimer values, and risk factors of DVT. From October 2012 to August 2014, 261 patients were included. DVT was detected in 46 patients(17...
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27932670/annals-express-red-blood-cell-distribution-width-and-neutrophil-to-lymphocyte-ratio-are-associated-with-outcomes-of-adult-subarachnoid-hemorrhage-patients-admitted-to-intensive-care-unit
#4
Yuan-Lan Huang, Zhi-Jun Han, Zhi-De Hu
BACKGROUND: Red blood cell distribution width (RDW) and neutrophil to lymphocyte ratio (NLR) have been reported to be associated with outcomes of acute cerebral infarction. However, their prognostic value in patients with subarachnoid hemorrhage (SAH) remains largely unknown. The aim of this study was to investigate the prognostic value of RDW and NLR in SAH patients. METHODS: Medical records of adult SAH patients admitted to intensive care unit (ICU) were extracted from Multiparameter Intelligent Monitoring in Intensive Care II (MIMIC II, version 2...
December 8, 2016: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/27932607/randomized-open-label-phase-1-2a-study-to-determine-the-maximum-tolerated-dose-of-intraventricular-sustained-release-nimodipine-for-subarachnoid-hemorrhage-newton-nimodipine-microparticles-to-enhance-recovery-while-reducing-toxicity-after-subarachnoid-hemorrhage
#5
Daniel Hänggi, Nima Etminan, Francois Aldrich, Hans Jakob Steiger, Stephan A Mayer, Michael N Diringer, Brian L Hoh, J Mocco, Herbert J Faleck, R Loch Macdonald
BACKGROUND AND PURPOSE: We conducted a randomized, open-label, phase 1/2a, dose-escalation study of intraventricular sustained-release nimodipine (EG-1962) to determine safety, tolerability, pharmacokinetics, and clinical effects in aneurysmal subarachnoid hemorrhage. METHODS: Subjects with aneurysmal subarachnoid hemorrhage repaired by clipping or coiling were randomized to EG-1962 or enteral nimodipine. Subjects were World Federation of Neurological Surgeons grade 2 to 4 and had an external ventricular drain...
December 8, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27931942/interleukin-6-in-the-cerebrospinal-fluid-as-biomarker-for-onset-of-vasospasm-and-ventriculitis-after-severe-subarachnoidal-hemorrhage
#6
Markus Lenski, Volker Huge, Josef Briegel, Jörg-Christian Tonn, Christian Schichor, Niklas Thon
OBJECTIVE: Study aim was to investigate the diagnostic potential of Interleukin-6(IL-6) and other soluble biomarkers in serum and cerebrospinal fluid(CSF) for early diagnosis of cerebral vasospasm (cVSSAH) and external ventricular drainage (EVD) associated ventriculitis (VCSAH) and to separate these conditions from aneurysmal subarachnoidal hemorrhage (aSAH) without further complication (SAH(w/o/c)). METHODS: The concentrations of serum biomarkers and markers in the CSF were collected in 63 consecutive patients with aSAH and EVD...
December 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27928632/ventriculostomy-related-infections-in-subarachnoid-hemorrhage-patients-a-retrospective-study-of-incidence-etiology-and-antimicrobial-therapy
#7
Johan Widén, Britt-Marie Eriksson, Elisabeth Ronne-Engström, Per Enblad, Gabriel Westman
BACKGROUND: This study was performed to investigate the incidence and etiology of ventriculostomy-related infections (VRIs) in patients with subarachnoid hemorrhage (SAH) and to assess adherence to local clinical guidelines regarding empirical antimicrobial therapy and diagnostic routines. METHODS: A total of 191 consecutive SAH patients treated in the neuro-intensive care unit of Uppsala University Hospital between 2010 and 2013 were included retrospectively. Information regarding cerebrospinal fluid samples, bacterial cultures, ventriculostomy treatment, patient characteristics, and antibiotic treatment were collected from electronic patient records...
December 7, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27927658/aneurysmal-subarachnoid-hemorrhage-red-blood-cell-transfusion-and-outcome-sahara-a-pilot-randomised-controlled-trial-protocol
#8
Shane W English, D Fergusson, M Chassé, A F Turgeon, F Lauzier, D Griesdale, A Algird, A Kramer, A Tinmouth, C Lum, J Sinclair, S Marshall, D Dowlatshahi, A Boutin, G Pagliarello, L A McIntyre
INTRODUCTION: Anaemia is common in aneurysmal subarachnoid haemorrhage (aSAH) and is a potential critical modifiable factor affecting secondary injury. Despite physiological evidence and management guidelines that support maintaining a higher haemoglobin level in patients with aSAH, current practice is one of a more restrictive approach to transfusion. The goal of this multicentre pilot trial is to determine the feasibility of successfully conducting a red blood cell (RBC) transfusion trial in adult patients with acute aSAH and anaemia (Hb ≤100 g/L), comparing a liberal transfusion strategy (Hb ≤100 g/L) with a restrictive strategy (Hb ≤80 g/L) on the combined rate of death and severe disability at 12 months...
December 7, 2016: BMJ Open
https://www.readbyqxmd.com/read/27925301/atypical-case-of-perimesencephalic-subarachnoid-hemorrhage
#9
Konark Malhotra, Shino D Magaki, Maria Inmaculada Cobos Sillero, Harry V Vinters, Reza Jahan, Robert D Brown, David S Liebeskind
Perimesencephalic subarachnoid hemorrhage (PM-SAH) refers to intracranial hemorrhage located in the perimesencephalic cistern. The etiology remains mainly unclear, although venous leakage or rupture has been postulated. We report an interesting case of a 57-year-old healthy man who presented initially with PM-SAH with worsening of subcortical lesions on follow-up neuroimaging. Histopathological examination demonstrated cerebral amyloid angiopathy with perivascular inflammation.
December 7, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/27924523/erratum-to-lps-pretreatment-provides-neuroprotective-roles-in-rats-with-subarachnoid-hemorrhage-by-downregulating-mmp9-and-caspase3-associated-with-tlr4-signaling-activation
#10
Ting-Hua Wang, Liu-Lin Xiong, Shuai-Fen Yang, Chao You, Qing-Jie Xia, Yang Xu, Piao Zhang, Shu-Fen Wang, Jia Liu
No abstract text is available yet for this article.
December 6, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27924287/transient-oliguria-during-anesthesia-in-cerebral-salt-wasting-syndrome
#11
Kwang Ho Lee, Jong Taek Park, Dong Woo Cho, Seung Woo Song, Hyun Kyo Lim
Cerebral salt wasting syndrome is a hyponatremic and hypovolemic condition caused by intracranial disorders, such as head injury, subarachnoid hemorrhage, brain tumor, and brain operations. We report a case of a 5-year-old girl that had cerebral salt wasting syndrome with marked polyuria who showed transient oliguria during general anesthesia. The patient had undergone an operation for traumatic intracranial hemorrhage three months prior and has had marked polyuria and hyponatremia since then. After induction of anesthesia for cranioplasty, the patient had oliguria during surgery and then resumed polyuria in the post-operative period...
September 2016: Journal of Lifestyle Medicine
https://www.readbyqxmd.com/read/27924052/magnetic-resonance-imaging-and-cerebral-ischemia-after-aneurysmal-subarachnoid-hemorrhage-a-systematic-review-and-meta-analysis
#12
Lisa A van der Kleij, Jill B De Vis, Jean-Marc Olivot, Lionel Calviere, Christophe Cognard, Nicolaas P A Zuithoff, Gabriel J E Rinkel, Jeroen Hendrikse, Mervyn D I Vergouwen
No abstract text is available yet for this article.
December 6, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27923749/spinal-glomus-arteriovenous-malformation-presenting-with-a-subarachnoid-hemorrhage
#13
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/27922256/statins-in-critical-care-to-give-or-not-to-give
#14
Amr S Omar, Samy Hanoura, Haifa M Aljanubi, Ahmed Mahfouz
Owing to statin's immune modulatory, anti-inflammatory, antioxidant, antithrombotic and endothelial function actions, they are widely used in the critical care settings in diverse disease scenarios. We aim to explore the evidence to globalize the utilization of statins in the intensive care practice for different indications. We carried out a search of the PubMed, Cochrane and EMBASE databases up to January 2016. We included review articles, meta-analyses, and original trials on the effects of statin therapy in the intensive care unit (ICU) combining the following MESH terms: 'satins', 'intensive care, 'cardiac surgery', 'sepsis', 'acute respiratory distress syndrome' 'pneumonia', subarachnoid hemorrhage', traumatic brain injury and 'critical illness'...
December 6, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27916623/multiple-beneficial-effects-of-melanocortin-mc4-receptor-agonists-in-experimental-neurodegenerative-disorders-therapeutic-perspectives
#15
REVIEW
Daniela Giuliani, Alessandra Ottani, Laura Neri, Davide Zaffe, Paolo Grieco, Jerzy Jochem, Gian Maria Cavallini, Anna Catania, Salvatore Guarini
Melanocortin peptides induce neuroprotection in acute and chronic experimental neurodegenerative conditions. Melanocortins likewise counteract systemic responses to brain injuries. Furthermore, they promote neurogenesis by activating critical signaling pathways. Melanocortin-induced long-lasting improvement in synaptic activity and neurological performance, including learning and memory, sensory-motor orientation and coordinated limb use, has been consistently observed in experimental models of acute and chronic neurodegeneration...
December 1, 2016: Progress in Neurobiology
https://www.readbyqxmd.com/read/27915583/the-six-minute-walk-test-predicts-cardiorespiratory-fitness-in-individuals-with-aneurysmal-subarachnoid-hemorrhage
#16
Wouter J Harmsen, Gerard M Ribbers, Jorrit Slaman, Majanka H Heijenbrok-Kal, Ladbon Khajeh, Fop van Kooten, Sebastiaan J C M M Neggers, Rita J van den Berg-Emons
BACKGROUND: Peak oxygen uptake (VO2peak) established during progressive cardiopulmonary exercise testing (CPET) is the "gold-standard" for cardiorespiratory fitness. However, CPET measurements may be limited in patients with aneurysmal subarachnoid hemorrhage (a-SAH) by disease-related complaints, such as cardiovascular health-risks or anxiety. Furthermore, CPET with gas-exchange analyses require specialized knowledge and infrastructure with limited availability in most rehabilitation facilities...
December 5, 2016: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/27911237/size-and-location-of-ruptured-intracranial-aneurysms-consecutive-series-of-1993-hospital-admitted-patients
#17
Miikka Korja, Riku Kivisaari, Behnam Rezai Jahromi, Hanna Lehto
OBJECTIVE Large consecutive series on the size and location of ruptured intracranial aneurysms (RIAs) are limited, and therefore it has been difficult to estimate population-wide effects of size-based treatment strategies of unruptured intracranial aneurysms. The authors' aim was to define the size and location of RIAs in patients diagnosed with subarachnoid hemorrhage due to aneurysm rupture in a high-volume academic center. METHODS Consecutive patients admitted to a large nonprofit academic hospital with saccular RIAs between 1995 and 2009 were identified, and the size, location, and multiplicity of RIAs were defined and reported by patient sex...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27909194/severity-assessment-and-scoring-for-neurosurgical-models-in-rodents
#18
Sarah Pinkernell, Katrin Becker, Ute Lindauer
The most important acute neurological diseases seen at neurosurgery departments are traumatic brain injuries (TBI) and subarachnoid hemorrhages (SAH). In both diseases the pathophysiological sequela are complex and have not been fully understood up to now, and rodent models using rats and mice are most suitable for the investigation of the pathophysiological details. In both models, surgery is performed under anesthesia, followed by assessment of their functional outcome and behavioral testing before brain tissue analysis after euthanasia...
December 2016: Laboratory Animals
https://www.readbyqxmd.com/read/27908617/regional-cerebral-blood-flow-and-cellular-environment-in-subarachnoid-hemorrhage-a-thermal-doppler-flowmetry-and-microdialysis-study
#19
D Papadopoulos, A Filippidis, G Krommidas, G Vretzakis, K Paterakis, A Komnos, K N Fountas
BACKGROUND: Cerebral microdialysis enables assessment of regional metabolic physiology and provides biomarkers for clinical correlation in critical conditions, such as subarachnoid hemorrhage (SAH). The aim of our current study was to investigate the correlation between regional cerebral blood flow and microdialysis parameters (glucose, lactate, glycerol, pyruvate concentrations, and lactate/pyruvate metabolic ratio) in patients with SAH. MATERIALS AND METHODS: Twenty-one patients with SAH were enrolled in our retrospective study...
November 18, 2016: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/27907969/neuroprotection-in-critical-care-neurology
#20
Menno R Germans, Hieronymus D Boogaarts, R Loch Macdonald
Ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage, and traumatic brain injury-all have in common early brain injury due to brain tissue destruction, reduced cerebral blood flow and oxygen delivery, and overall substantial morbidity and mortality. The pathophysiology of brain tissue damage likely includes common cellular mechanisms. Neuroprotection has seldom, if ever, been shown to reduce early brain injury. Secondary brain injury develops after these conditions due to macroscopic events such as increased intracranial pressure and reduced cerebral blood flow, as well as cellular processes including vascular damage, inflammation, and apoptotic/necrotic cell death...
December 2016: Seminars in Neurology
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