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subarachnoid hemorrhage and vasospasm

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https://www.readbyqxmd.com/read/28087430/ryanodine-receptor-1-polymorphism-is-not-associated-with-aneurysmal-subarachnoid-hemorrhage-or-its-clinical-sequelae
#1
Philipp Hendrix, Paul M Foreman, Mark R Harrigan, Winfield S Fisher, Nilesh A Vyas, Robert H Lipsky, Minkuan Lin, Beverly C Walters, R Shane Tubbs, Mohammadali M Shoja, Jean-Francois Pittet, Mali Mathru, Christoph J Griessenauer
OBJECTIVE: The pathophysiological mechanisms underlying cerebral vasospasm following aneurysmal subarachnoid hemorrhage (aSAH) remain poorly understand. Ryanodine receptors (RYR) are intracellular calcium channels involved in the regulation of vascular smooth muscle cells and cerebrovascular tone and diameter. Previous work reported an association between a RYR polymorphism and cerebral vasospasm. Here, we sought to assess the impact of that RYR polymorphism on aSAH and its clinical sequelae...
January 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28070640/erratum-to-thrombectomy-for-ischemic-stroke-meta-analyses-of-recurrent-strokes-vasospasms-and-subarachnoid-hemorrhages
#2
Robert Emprechtinger, Brigitte Piso, Peter A Ringleb
No abstract text is available yet for this article.
January 9, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28033279/the-effect-of-fenestration-of-the-lamina-terminalis-on-the-incidence-of-shunt-dependent-hydrocephalus-after-aneurysmal-subarachnoid-hemorrhage-fish-study-protocol-for-a-randomized-controlled-trial
#3
Chuanyuan Tao, Chaofeng Fan, Xin Hu, Junpeng Ma, Lu Ma, Hao Li, Yi Liu, Hong Sun, Min He, Chao You
BACKGROUND: Shunt-dependent hydrocephalus (SDH) is a well-known sequela following aneurysmal hemorrhage, adversely affecting the outcome after securing ruptured aneurysm. Fenestration of lamina terminalis (FLT) creates an anterior ventriculostomy, facilitates cerebrospinal fluid circulation and clot clearance in the basal cistern. However, controversy exists over whether microsurgical FLT during aneurysm repair can decrease the incidence of SDH. AIMS: The study is designed to determine the efficacy of lamina terminalis fenestration on the reduction of SDH after aneurysm clipping...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28004212/application-of-actuator-driven-pulsed-water-jet-in-aneurysmal-subarachnoid-hemorrhage-surgery-its-effectiveness-for-dissection-around-ruptured-aneurysmal-walls-and-subarachnoid-clot-removal
#4
Hidenori Endo, Toshiki Endo, Atsuhiro Nakagawa, Miki Fujimura, Teiji Tominaga
In clipping surgery for aneurysmal subarachnoid hemorrhage (aSAH), critical steps include clot removal and dissection of aneurysms without premature rupture or brain injuries. To pursue this goal, a piezo actuator-driven pulsed water jet (ADPJ) system was introduced in this study. This study included 42 patients, who suffered aSAH and underwent clipping surgery. Eleven patients underwent surgery with the assistance of the ADPJ system (ADPJ group). In the other 31 patients, surgery was performed without the ADPJ system (Control group)...
December 22, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/28004163/treatment-of-cerebral-vasospasm-following-aneurysmal-subarachnoid-haemorrhage-a-systematic-review-and-meta-analysis
#5
Grégoire Boulouis, Marc Antoine Labeyrie, Jean Raymond, Christine Rodriguez-Régent, Anne Claire Lukaszewicz, Damien Bresson, Wagih Ben Hassen, Denis Trystram, Jean Francois Meder, Catherine Oppenheim, Olivier Naggara
OBJECTIVES: To examine the clinical outcome of aneurysmal subarachnoid haemorrhage (aSAH) patients exposed to cerebral vasospasm (CVS)-targeted treatments in a meta-analysis and to evaluate the efficacy of intra-arterial (IA) approaches in patients with severe/refractory vasospasm. METHODS: Randomised controlled trials, prospective and retrospective observational studies reporting clinical outcomes of aSAH patients exposed to CVS targeted treatments, published between 2006-2016 were searched using PubMed, EMBASE and the Cochrane Library...
December 21, 2016: European Radiology
https://www.readbyqxmd.com/read/28000132/biomarkers-of-glycocalyx-injury-are-associated-with-delayed-cerebral-ischemia-following-aneurysmal-subarachnoid-hemorrhage-a-case-series-supporting-a-new-hypothesis
#6
Josh D Bell, Shawn G Rhind, Alex P Di Battista, R Loch Macdonald, Andrew J Baker
BACKGROUND: Delayed cerebral ischemia (DCI) contributes to morbidity following aneurysmal subarachnoid hemorrhage; however, its etiology remains poorly understood. DCI is not only a consequence of angiographic vasospasm, but also involves microthrombosis and neuroinflammation, two events with unexplained phenomenology. The vascular endothelial glycocalyx mediates platelet aggregation and endothelial cell-leukocyte interactions and may play an important role in DCI pathogenesis. METHODS: We present a case series in which we conducted multiplex and singlet enzyme-linked immunosorbent assays of endothelial, glycocalyx, inflammatory, and neuroinjury proteins in both CSF and plasma in three patients during active DCI following SAH...
December 20, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27997923/the-role-of-hmgb1-in-pial-arteriole-dilating-reactivity-following-subarachnoid-hemorrhage-in-rats
#7
Haoliang Xu, Benjarat Changyaleket, Tibor Valyi-Nagy, Randal O Dull, Dale A Pelligrino, David E Schwartz, Zhao Zhong Chong
High-mobility group box 1 protein (HMGB1) has been implicated in inflammatory responses, and is also associated with cerebral vasospasm after subarachnoid hemorrhage (SAH). However, there are no direct evident links between HMGB1 and cerebral vasospasm. We therefore investigated the effects of HMGB1 on pial arteriole reactivity following SAH in rats. We initially found that SAH induced a significant decrease in pial arteriole dilating responses to sciatic nerve stimulation (SNS), hypercapnia (CO2), and the topical suffusion of acetylcholine (ACh), adenosine (ADO), and s-nitroso-N-acetylpenicillamine (SNAP) over a 7-day period after SAH...
December 21, 2016: Journal of Vascular Research
https://www.readbyqxmd.com/read/27993744/omega-3-fatty-acid-ethyl-esters-suppress-cerebral-vasospasm-and-improve-clinical-outcome-following-aneurysmal-subarachnoid-hemorrhage
#8
Ichiro Nakagawa, Shohei Yokoyama, Koji Omoto, Yasuhiro Takeshima, Ryosuke Matsuda, Fumihiko Nishimura, Shuichi Yamada, Hiroshi Yokota, Yasushi Motoyama, Young-Su Park, Hiroyuki Nakase
OBJECTIVE: The occurrence of cerebral vasospasm after onset of aneurysmal subarachnoid hemorrhage (SAH) is a critical factor determining the clinical prognosis. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), both omega-3 fatty acids (O-3FA), can suppress cerebral vasospasm and DHA can relax vessels vasoconstriction and have neuroprotective effects. In the present study, we investigated whether administration of O-3FA prevented cerebral vasospasm occurrence and improved clinical outcomes following aneurysmal SAH...
December 16, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27979797/feasibility-and-safety-of-repeat-instant-endovascular-interventions-in-patients-with-refractory-cerebral-vasospasms
#9
L Andereggen, J Beck, W J Z'Graggen, G Schroth, R H Andres, M Murek, M Haenggi, M Reinert, A Raabe, J Gralla
BACKGROUND AND PURPOSE: For patients with cerebral vasospasm refractory to medical and hemodynamic therapies, endovascular therapies often remain the last resort. Data from studies in large cohorts on the efficacy and safety of multiple immediate endovascular interventions are sparse. Our aim was to assess the feasibility and safety of multiple repeat instant endovascular interventions in patients with cerebral vasospasm refractory to medical, hemodynamic, and initial endovascular interventions...
December 15, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27931942/interleukin-6-in-the-cerebrospinal-fluid-as-biomarker-for-onset-of-vasospasm-and-ventriculitis-after-severe-subarachnoidal-hemorrhage
#10
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/27900416/-intensive-care-treatment-after-aneurysmal-subarachnoid-hemorrhage
#11
U Jaschinski
Aneurysmal subarachnoid hemorrhage (SAH) is a devastating disease and nearly one third of patients die in the acute phase. Due to the bleeding event, a hyperactive sympathetic nervous system and an uncontrolled inflammatory response have a profound local and systemic impact on other organ functions. Neuroendocrinological disorders and cardiopulmonary morbidity are dominant. Despite a decrease in hospital mortality for high volume centers, a high proportion of survivors suffer from neurological deficits. Knowledge of the pathophysiology of vasospasms in the later stages of the disease has increased...
December 2016: Der Anaesthesist
https://www.readbyqxmd.com/read/27883038/anti-high-mobility-group-box-1-hmgb1-antibody-attenuates-delayed-cerebral-vasospasm-and-brain-injury-after-subarachnoid-hemorrhage-in-rats
#12
Jun Haruma, Kiyoshi Teshigawara, Tomohito Hishikawa, Dengli Wang, Keyue Liu, Hidenori Wake, Shuji Mori, Hideo Kohka Takahashi, Kenji Sugiu, Isao Date, Masahiro Nishibori
Although delayed cerebral vasospasm (DCV) following subarachnoid hemorrhage (SAH) is closely related to the progression of brain damage, little is known about the molecular mechanism underlying its development. High mobility group box-1 (HMGB1) plays an important role as an initial inflammatory mediator in SAH. In this study, an SAH rat model was employed to evaluate the effects of anti-HMGB1 monoclonal antibody (mAb) on DCV after SAH. A vasoconstriction of the basilar artery (BA) associated with a reduction of nuclear HMGB1 and its translocation in vascular smooth muscle cells were observed in SAH rats, and anti-HMGB1 mAb administration significantly suppressed these effects...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27867126/coiling-is-not-superior-to-clipping-in-patients-with-high-grade-aneurysmal-subarachnoid-hemorrhage-a-systematic-review-and-meta-analysis
#13
REVIEW
Zhi-Wei Xia, Xiao-Ming Liu, Jun-Yu Wang, Hui Cao, Feng-Hua Chen, Jun Huang, Qi-Zhuang Li, Shuang-Shi Fan, Bing Jiang, Zi-Gui Chen, Quan Cheng
BACKGROUND: Outcomes of coiling embolization versus clipping for patients with high-grade aneurysmal subarachnoid hemorrhage (aSAH) have not been previously compared. We reviewed the current evidence regarding the safety and efficacy of clipping versus coiling for high-grade aSAH. METHODS: We conducted a meta-analysis of studies that comparring clipping with coiling in patients with high-grade aSAH published from January 1999-February 2016 in Medline, Embase, and Cochrane databases based on PRISMA inclusion and exclusion criteria...
November 17, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27866915/trends-in-transcranial-doppler-monitoring-in-aneurysmal-subarachnoid-hemorrhage-a-10-year-analysis-of-the-nationwide-inpatient-sample
#14
Gyanendra Kumar, Karen C Albright, John P Donnelly, Angela Hays Shapshak, Mark R Harrigan
BACKGROUND: Transcranial Doppler (TCD) is endorsed by national guidelines for use in aneurysmal subarachnoid hemorrhage (aSAH) for surveillance of cerebral vasospasm (CV). However, nationwide data on utilization of TCD for CV detection and monitoring in aSAH are lacking. METHODS: Analysis of nationwide trends in TCD prevalence was performed using Nationwide Inpatient Sample (NIS) data from 2002 to 2011. Raw counts were converted into weighted counts, which were used to generate national estimates...
November 17, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27827324/dissociation-of-early-and-delayed-cerebral-infarction-after-aneurysmal-subarachnoid-hemorrhage
#15
Oliver G S Ayling, George M Ibrahim, Naif M Alotaibi, Peter A Gooderham, R Loch Macdonald
BACKGROUND AND PURPOSE: Cerebral infarction after aneurysmal subarachnoid hemorrhage is a significant cause of substantial morbidity and mortality. Because early and delayed cerebral infarction after aneurysmal subarachnoid hemorrhage may be mediated by different processes, we evaluated whether aneurysm-securing methods contributed to infarcts and whether long-term outcomes differ between early and delayed infarcts. METHODS: A post hoc analysis of the CONSCIOUS-1 study (Clazosentan to Overcome Neurological Ischemia and Infarction Occurring After Subarachnoid Hemorrhage) was performed...
December 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27812447/continuous-intra-arterial-nimodipine-infusion-in-refractory-symptomatic-vasospasm-after-subarachnoid-hemorrhage
#16
Raimund Helbok, Alexandra Zangerle, Andreas Chemelli, Ronny Beer, Thomas Benke, Rainer Ehling, Marlene Fischer, Martin Sojer, Bettina Pfausler, Claudius Thome, Erich Schmutzhard
INTRODUCTION: Vasospasm still is a major cause of morbidity after aneurysmal subarachnoid hemorrhage. The purpose of this report is to describe the successful management of severe refractory vasospasm with continuous intra-arterial nimodipine (IAN) treatment. CASE DESCRIPTION: A 72-year old right handed woman was admitted with non-traumatic SAH WFNS grade 1. Cerebral computed tomography demonstrated thick blood filling of the basal cisterns, and intraventricular hemorrhage...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27811177/efficacy-of-endovascular-treatment-and-feasibility-of-stent-assisted-coiling-in-the-presence-of-severe-and-symptomatic-vasospasm
#17
Cagatay Andic, Ozgur Kardes, Emre Durdag, Murat Gedikoglu, Sule Akin
BACKGROUND AND PURPOSE: In patients with aneurysmal subarachnoid hemorrhage, deciding the optimal treatment strategy is challenging in the presence of severe and symptomatic vasospasm and the existing literature is limited. The purpose of this study was to evaluate the safety and effectiveness of endovascular treatment of intracranial aneurysms and the feasibility of stent-assisted coiling during severe and symptomatic vasospasm. MATERIALS AND METHODS: Fifteen consecutive patients with 18 aneurysms who underwent endovascular treatment during severe and symptomatic vasospasm were included in the study...
November 3, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27789791/safety-and-outcomes-of-simultaneous-vasospasm-and-endovascular-aneurysm-treatment-svat-in-subarachnoid-hemorrhage
#18
REVIEW
Doniel Drazin, Vernard S Fennell, Edward Gifford, Carlito Lagman, Kunakorn Atchaneeyasakul, Randall C Edgell, Mahmoud Rayes, Andrew Xavier, Muhammad S Hussain, Rishi Gupta, Junaid S Kalia, Osama O Zaidat, Italo Linfante, Raul G Nogueira, Thanh Nguyen, Jamary Oliveira-Filho, Alexandre D M Barros, Alan Boulos, Michael J Alexander, Dileep R Yavagal
BACKGROUND: Simultaneous vasospasm and endovascular aneurysm treatment (SVAT) has been shown to be effective with good clinical outcomes in small series, but these studies have not examined predictive factors for clinical outcome after treatment. OBJECTIVE: To identify the safety and efficacy of SVAT in a large multicenter patient cohort and evaluate prognostic markers of clinical outcome following SVAT. METHODS: This study retrospectively enrolled 50 consecutive patients undergoing SVAT at 11 different centers...
October 27, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27784210/the-updated-role-of-oxidative-stress-in-subarachnoid-hemorrhage
#19
Yang Yang, Sheng Chen, Jianmin Zhang
Subarachnoid hemorrhage (SAH) is a ruinous disease with high morbidity and mortality. Two areas are becoming research hotspots of this disease: early brain injury (EBI) and delayed vasospasm. There is substantial evidence suggesting that oxidative stress plays a key role in the development of EBI and delayed cerebral vasospasm after SAH. Previous studies show several sources for the excessive generation of free radicals after SAH, such as disrupted mitochondrial respiration, upregulated enzymatic pathways and extracellular hemoglobin degradation...
October 25, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27777162/safety-and-efficacy-of-non-compliant-balloon-angioplasty-for-the-treatment-of-subarachnoid-hemorrhage-induced-vasospasm-a-multicenter-study
#20
Apar S Patel, Christoph J Griessenauer, Raghav Gupta, Nimer Adeeb, Paul M Foreman, Hussain Shallwani, Justin M Moore, Mark R Harrigan, Adnan H Siddiqui, Christopher S Ogilvy, Ajith J Thomas
INTRODUCTION: Cerebral vasospasm following subarachnoid hemorrhage (SAH) is the single most important cause of neurological decline following successful treatment of the ruptured aneurysm. Here, we report safety and efficacy of non-compliant balloon angioplasty for the treatment of cerebral vasospasm. METHODS: Three major academic institutions in the United States provided data on cerebral vasospasm treated with non-compliant balloon angioplasty between October 2004 and February 2016...
October 21, 2016: World Neurosurgery
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