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cerebral vasospasm

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https://www.readbyqxmd.com/read/29775770/treatment-of-ruptured-vertebral-artery-dissection-and-abdominal-hemorrhage-associated-with-segmental-arterial-mediolysis-using-endovascular-coil-embolization-va-dissection-associated-with-sam
#1
Taiki Isaji, Tomotaka Ohshima, Sigeru Miyachi, Naoki Matsuo, Reo Kawaguchi, Masakazu Takayasu
BACKGROUND: Segmental arterial mediolysis is a rare disease characterized by idiopathic noninflammatory vasculopathy involving small to medium arteries. Here, we report a case of ruptured cerebral and abdominal aneurysms, which were successfully treated using emergency endovascular coil embolization. CASE DESCRIPTION: A 45-year-old male suffered subarachnoid hemorrhage caused by the rupture of the right vertebral artery dissecting aneurysm, which was treated using emergency endovascular coiling...
May 15, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29770118/neuroinflammation-as-a-target-for-intervention-in-subarachnoid-hemorrhage
#2
REVIEW
Airton Leonardo de Oliveira Manoel, R Loch Macdonald
Aneurysmal subarachnoid hemorrhage (SAH) is a sub-type of hemorrhagic stroke associated with the highest rates of mortality and long-term neurological disabilities. Despite the improvement in the management of SAH patients and the reduction in case fatality in the last decades, disability and mortality remain high in this population. Brain injury can occur immediately and in the first days after SAH. This early brain injury can be due to physical effects on the brain such as increased intracranial pressure, herniations, intracerebral, intraventricular hemorrhage, and hydrocephalus...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29765390/preclinical-evaluation-of-the-nevatm-stent-retriever-safety-and-efficacy-in-the-swine-thrombectomy-model
#3
Arthur J Ulm, Tigran Khachatryan, Arthur Grigorian, Raul G Nogueira
Background: A novel stent retriever device with an enhanced radial force profile, enlarged offset openings, and a closed distal end has been developed. Objective: Evaluate the safety and effectiveness of the NeVaTM thrombectomy device in animal model of thrombo-occlusive disease. Materials and Methods: Seven swine were used in safety and efficacy studies. Thrombo-occlusive disease was modeled using 4 emboli morphologies; 2 distinct models of autologous whole blood thrombi, plasma-enriched thrombi, and Onyx® emboli...
April 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29760928/aneurysmal-subarachnoid-hemorrhage-intensive-care-for-improving-neurological-outcome
#4
REVIEW
Tomoya Okazaki, Yasuhiro Kuroda
Background: Aneurysmal subarachnoid hemorrhage is a life-threatening disease requiring neurocritical care. Delayed cerebral ischemia is a well-known complication that contributes to unfavorable neurological outcomes. Cerebral vasospasm has been thought to be the main cause of delayed cerebral ischemia, and although several studies were able to decrease cerebral vasospasm, none showed improved neurological outcomes. Our target is not cerebral vasospasm but improving neurological outcomes...
2018: Journal of Intensive Care
https://www.readbyqxmd.com/read/29760013/severity-of-cerebral-vasospasm-associated-with-development-of-collaterals-following-aneurysmal-subarachnoid-hemorrhage
#5
Fawaz Al-Mufti, Jens Witsch, Nathan Manning, Michael Crimmins, Krishna Amuluru, Sachin Agarwal, Soojin Park, Joshua Z Willey, Hooman Kamel, E Sander Connolly, Philip M Meyers, Jan Claassen
INTRODUCTION: Cerebral collateral circulation has been studied extensively in ischemic stroke where it has been shown to be a predictor of reperfusion, final infarct size, and outcome. Little is known about the significance of the collaterals in the setting of aneurysmal subarachnoid hemorrhage (aSAH). We sought to evaluate the effect of cerebral vasospasm on the development of cerebral collaterals following aneurysmal subarachnoid hemorrhage and the effects of the latter on delayed cerebral ischemia (DCI)...
May 14, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29753899/co-adjuvant-treatment-of-vasospasm-in-ruptured-unsecured-cerebral-aneurysms-with-aggressive-angioplasty-intra-arterial-nimodipine-and-aneurysm-embolization
#6
Ching-Chang Chen, Alvin Yi-Chou Wang, Chun-Ting Chen, Po-Chuan Hsieh
BACKGROUND: Vasospasm is a major cause of morbidity and mortality in patients following aneurysmal subarachnoid hemorrhage (SAH). Although early treatment of ruptured aneurysms is advocated, delayed intervention complicates the treatment strategy and leading to significant vasospasm and a poor prognosis. We report our experience of endovascular protocol for occlusion of the unsecured aneurysm and angioplasty for vasospasm in a single session. METHODS: A total of 24 cases with significant vasospasm and unsecured ruptured cerebral aneurysm were reviewed among 660 aneurysmal SAH patients between January 2011 and May 2017...
May 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29735721/relation-of-rhoa-in-peripheral-blood-mononuclear-cells-with-severity-of-aneurysmal-subarachnoid-hemorrhage-and-vasospasm
#7
María Del Carmen González-Montelongo, Juan José Egea-Guerrero, Francisco Murillo-Cabezas, Rafaela González-Montelongo, Zaida Ruiz de Azúa-López, Ana Rodríguez-Rodríguez, Angel Vilches-Arenas, Antonio Castellano, Juan Ureña
BACKGROUND AND PURPOSE: Rho-kinase, an effector of RhoA, is associated with various cardiovascular diseases in circulating blood cells. However, the role of RhoA/Rho-kinase in peripheral blood mononuclear cells from patients with spontaneous aneurysmal subarachnoid hemorrhage (aSAH) has not yet been studied in relation to the severity of this disease. Therefore, we analyzed the expression and activity of RhoA as a possible biomarker in aSAH. METHODS: Twenty-four patients with aSAH and 15 healthy subjects were examined...
May 7, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29733918/complication-rate-of-intraarterial-treatment-of-severe-cerebral-vasospasm-after-subarachnoid-hemorrhage-with-nimodipine-and-percutaneous-transluminal-balloon-angioplasty-worth-the-risk
#8
Daniela Adami, Joachim Berkefeld, Johannes Platz, Jürgen Konczalla, Waltraud Pfeilschifter, Stefan Weidauer, Marlies Wagner
BACKGROUND AND PURPOSE: Delayed cerebral ischemia (DCI) is a complication of aneurysmal subarachnoid hemorrhage (SAH). Arterial cerebral vasospasm (CVS) is discussed as the main pathomechanism for DCI. Due to positive effects of per os nimodipine, intraarterial nimodipine application is used in patients with DCI. Further, percutaneous transluminal balloon angioplasty (PTA) is applied in focal high-grade spasm of intracranial arteries. However, clinical benefits of those techniques are unconfirmed in randomized trials so far, and complications might occur...
May 4, 2018: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/29730271/intraventricular-extension-of-an-aneurysmal-subarachnoid-hemorrhage-is-an-independent-predictor-of-a-worse-functional-outcome
#9
Mario Zanaty, Daichi Nakagawa, Robert M Starke, Enrique C Leira, Edgar A Samaniego, Waldo R Guerrero, James Torner, Yasunori Nagahama, Olatilewa Awe, Jeremy Greenlee, Joseph S Hudson, Lauren Allan, Reem Elwy, Nohra Chalouhi, Pascal Jabbour, Royce Woodroffe, Anthony Piscopo, David Hasan
OBJECTIVE: The objective of this study is to determine the impact of intraventricular hemorrhage (IVH) on the cognitive prognosis of subarachnoid hemorrhage (SAH) due to ruptured cerebral aneurysm, independent of the presence of intraparenchymal hemorrhage, hydrocephalus or vasospasm. PATIENT AND METHODS: A Retrospective review of a prospectively collected database of patients with aneurysmal SAH from July 2009 to November 2016 was performed. Patients were included if they had a saccular aneurysm with a Hunt-Hess grade (HHG) 1-3...
April 30, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29726784/association-of-copeptin-a-surrogate-marker-of-arginine-vasopressin-with-cerebral-vasospasm-and-delayed-ischemic-neurologic-deficit-after-aneurysmal-subarachnoid-hemorrhage
#10
Sandra J Fernandez, Ibraham Barakat, James Ziogas, Tony Frugier, Stanley S Stylli, John D Laidlaw, Andrew H Kaye, Alexios A Adamides
OBJECTIVE Delayed ischemic neurological deficit (DIND) is a leading cause of mortality and morbidity after aneurysmal subarachnoid hemorrhage (aSAH). Arginine vasopressin (AVP) is a hormone released by the posterior pituitary. It is known to cause cerebral vasoconstriction and has been implicated in hyponatremia secondary to the syndrome of inappropriate antidiuretic hormone secretion. Direct measurement of AVP is limited by its short half-life. Copeptin, a cleavage product of the AVP precursor protein, was therefore used as a surrogate marker for AVP...
May 4, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29704122/vasospasm-related-complications-after-subarachnoid-hemorrhage-the-role-of-patients-age-and-sex
#11
Marvin Darkwah Oppong, Antonella Iannaccone, Oliver Gembruch, Daniela Pierscianek, Mehdi Chihi, Philipp Dammann, Angela Köninger, Oliver Müller, Michael Forsting, Ulrich Sure, Ramazan Jabbarli
BACKGROUND: Outcome of aneurysmal subarachnoid hemorrhage (SAH) depends strongly on occurrence of symptomatic vasospasm (SV) leading to delayed cerebral ischemia (DCI). Various demographic, radiographic, and clinical predictors of SV have been reported so far, partially with conflicting results. The aim of this study was to analyze the role of patients' age and sex on SV/DCI risk, especially to identify age and sex-specific risk groups. METHODS: All patients admitted with acute SAH during a 14-year-period ending in 2016 were eligible for this study...
April 27, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29700693/prolonged-post-traumatic-vasospasm-resulting-in-delayed-cerebral-ischemia-after-mild-traumatic-brain-injury
#12
Masoom Desai, Nicholas A Morris
No abstract text is available yet for this article.
April 26, 2018: Neurocritical Care
https://www.readbyqxmd.com/read/29689641/inducing-different-brain-injury-levels-using-shock-wave-lithotripsy
#13
Afshin A Divani, Pascal Salazar, Manoj Monga, Greg J Beilman, Karen S SantaCruz
OBJECTIVES: To assess the feasibility of inducing different severities of shock wave (SW)-induced traumatic brain injury (TBI) using lithotripsy. METHODS: Wistar rats (n = 36) were divided into 2 groups: group 1 (n = 20) received 5 SW pulses, and group 2 (n = 16) received 15 SWs pulses. The SW pulses were delivered to the right side of the frontal cortex. Neurologic and behavioral assessments (Garcia test, beam walking, rotarod, and elevated plus maze) were performed at the baseline and at 3, 6, 24, 72, and 168 hours after injury...
April 24, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29689403/delayed-cerebral-ischemia-and-vasospasm-after-spontaneous-angiogram-negative-subarachnoid-hemorrhage-an-updated-meta-analysis
#14
Si Un Lee, Eun Pyo Hong, Bong Jun Kim, Sung-Eun Kim, Jin Pyeong Jeon
OBJECT: To provide an update on the clinical outcomes such as delayed cerebral ischemia (DCI) and vasospasm in angiogram-negative subarachnoid hemorrhage (SAH), according to hemorrhage patterns, perimesencephalic SAH (PMH) and non-PMH. METHODS: Online databases from January 1990 to December 2017 were systematically reviewed. A fixed-effect model was used to control heterogeneity. To resolve publication bias, the trim and fill method was used to estimate the number of missing studies and adjusted odds ratio (OR)...
April 21, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29689391/risk-factors-for-in-hospital-seizures-and-new-onset-epilepsy-in-coil-embolization-of-aneurysmal-subarachnoid-hemorrhage
#15
Suresh K Nathan, Neel Brahme, Ahmed Kashkoush, Katherine Anetakis, Brian T Jankowitz, Parthasarathy D Thirumala
OBJECTIVE: The study aims to determine risk factors for inpatient seizures and long-term epilepsy in patients receiving coil embolization for aneurysm associated subarachnoid hemorrhage. METHODS: A retrospective chart review was conducted for patients admitted at University of Pittsburgh Medical Center from 2010 - 2014 for subarachnoid hemorrhage. Only patients with coil embolization were included. Variables such as subdural hematoma, cerebral infarction, post-operative vasospasm, cerebral edema, and mass effect were collected...
April 21, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29687859/clinical-diagnosis-of-cerebral-vasospasm-after-subarachnoid-hemorrhage-by-using-transcranial-doppler-sonography
#16
D-D Li, J-Y Chang, C-X Zhou, J-B Cui
OBJECTIVE: To investigate the diagnosis of cerebral vasospasm (CVS) after subarachnoid hemorrhage (SAH) by transcranial Doppler (TCD) sonography. PATIENTS AND METHODS: 90 patients with SAH admitted to the Department of Neurosurgery of Weifang People's Hospital from January 2016 to December 2016 were selected. TCD and digital subtraction angiography (DSA) were used to diagnose the prevalence of CVS in patients. The severity of disease was evaluated (improved-Fisher grading)...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29684516/reconsideration-of-neurogenic-pulmonary-oedema-as-a-source-of-metastatic-cerebral-abscess-following-subarachnoid-hemorrhages-a-preliminary-study
#17
Ahmet Gökyar, Mehmet D Aydın, Sevilay Özmen, Elif Demirci, Abdullah H Marangoz, Enis Kuruoğlu, Cengiz Çokluk
BACKGROUND: Subarachnoid hemorrhage (SAH) may be a cause of neurogenic pulmonary edema (NPE). It is well known that lymphatic fluid draining by thoracic duct to lungs consists of many dangerous metabolites, degraded tissue particles and microbiological pathogens. However, there is no enough study which investigates if NPE cause septicemia or not. In this study, we retrospectively examined our experimental materials whether there is a meaningful relationship between the NPE and cerebral abscess formation...
April 20, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29683965/effect-of-dexmedetomidine-on-cerebral-vasospasm-and-associated-biomarkers-in-a-rat-subarachnoid-hemorrhage-model
#18
Young Song, Beom Jin Lim, Do-Hyeong Kim, Jin Woo Ju, Dong Woo Han
BACKGROUND: The α2 adrenergic agonist dexmedetomidine (DEX) has huge potential for protecting against cerebral vasospasm, a leading cause of death and disability after subarachnoid hemorrhage (SAH). Biomarker assays for SAH have recently emerged as tools for predicting vasospasm and outcomes. We investigated the effects of DEX on vasospasm and assessed relevant biomarkers in a rat SAH model. METHODS: Male Wistar rats were randomly assigned to sham (n=10), vehicle (n=10), SAH (n=10), or SAH+ DEX (n=10) groups...
April 20, 2018: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/29682020/morphometric-analysis-of-dose-dependent-effect-of-progesterone-on-experimental-vasospasm-induced-rat-femoral-arteries
#19
Metin Kasap, Huseyin Canaz, Gokhan Canaz, Mehmet Tokmak, Alper Bingul, Ibrahim Alatas
Objective: Our aim of this study was to determine effective doses of progesterone which has a vasodilatory effect during the early stage of vasospasm. Cerebral vasospasm (CV) is a predominant cause of morbidity and mortality which develops following subarachnoidal hemorrhage (SAH). Etiopathogenesis of CV is multifactorial. Despite many previously performed studies on this issue, the mechanism by which blood and blood products in the subarachnoidal space induce CV has not been clarified yet...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682015/spinal-cerebrospinal-fluid-drainage-for-prevention-of-vasospasm-in-aneurysmal-subarachnoid-hemorrhage-a-prospective-randomized-controlled-study
#20
Sachin Anil Borkar, Manmohanjit Singh, Shashank Sharad Kale, Ashish Suri, Poodipedi Sarat Chandra, Rajender Kumar, Bhawani Shankar Sharma, Shailesh Gaikwad, Ashok Kumar Mahapatra
Introduction: Cerebral vasospasm following aneurysmal subarachnoid hemorrhage (SAH) is a major cause of mortality and morbidity. Despite various treatment modalities, the optimal management of vasospasm remains elusive. In this regard; we undertook a prospective, randomized controlled study to evaluate the effectiveness of lumbar cerebrospinal fluid drainage (LCSFD) for prevention of cerebral vasospasm and its sequelae. Materials and Methods: Patients with aneurysmal SAH who met the inclusion criteria were randomized into two groups - Group I (30 patients) underwent LCSFD whereas Group II (30 patients) did not undergo LCSFD...
April 2018: Asian Journal of Neurosurgery
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