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https://www.readbyqxmd.com/read/28813763/simultaneous-onset-of-deep-vein-thrombosis-pulmonary-embolism-cerebral-infarction-and-myocardial-infarction-in-a-patient-with-patent-foramen-ovale
#1
Jimmy Yee, Vishesh Kumar, Alex Pham, Kashif Shaikh, Muhammad Omar, Adam Stys, Marian Petrasko
Paradoxical embolism is a known complication with intra-cardiac shunts. It should be considered in the differential as the pathophysiologic mechanism of simultaneous thromboembolism in the venous and systemic vasculature. We present a case of simultaneous deep venous thrombosis, pulmonary embolism and myocardial infarction in the presence of a confirmed patent foramen ovale on echocardiography. Thrombolytic therapy was administered. Subsequent concerns of intracranial hemorrhage on imaging of the brain complicated the management and added to the challenge of co-managing the clot burden in our patient...
June 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28811212/incidence-and-risk-factors-of-delayed-intracranial-hemorrhage-in-emergency-department
#2
Byunghyun Kim, Hyeonjeong Jeong, Joonghee Kim, Tackeun Kim, Kyuseok Kim, Heeyoung Lee, Soyeon Ahn, Yoo Hwan Jo, Jae Hyuk Lee, Ji Eun Hwang
OBJECTIVES: This study was performed to identify the risk factors for delayed intracranial hemorrhage and develop a risk stratification system for disposition of head trauma patients with negative initial brain imaging. METHODS: The data source was National Health Insurance Service-National Sample Cohort of Korea. We analyzed adult patients presenting to the ER from January 2004 to September 2012, who underwent brain imaging and discharged with or without short-term observation no longer than two days...
August 4, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28810087/multiple-pulmonary-arteriovenous-malformations-an-unusual-cause-of-shortness-of-breath-and-recurrent-strokes
#3
Kalyan C Potu, Shenjing Li, Shawn C Kelly, Julia A Prescott-Focht, Scott Pham
OBJECTIVE: To discuss an uncommon case of a patient with multiple pulmonary arteriovenous malformations (PAVMs) presenting with dyspnea on exertion and recurrent strokes. BACKGROUND: A 79-year-old woman with recent onset recurrent cerebrovascular accidents (CVAs) was referred to cardiology for evaluation of dyspnea on exertion. Clinical examination was unrevealing. METHODS: A transthoracic echocardiogram (TTE) with agitated saline was suggestive of an extra-cardiac shunt...
February 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28808605/fatal-cerebral-swelling-immediately-after-cranioplasty-a-case-report
#4
Yuta Kaneshiro, Keiji Murata, Shigeru Yamauchi, Yumiko Urano
BACKGROUND: Cranioplasty is a standard neurosurgical procedure which is performed after decompressive craniotomy. Fatal complications associated with this procedure are not well documented. Here, we report a case of fatal cerebral swelling after cranioplasty and discuss the possible mechanism of this complication. CASE DESCRIPTION: A 64-year-old man was admitted with the diagnosis of cerebral hemorrhage, and emergency surgery for hemorrhage removal and decompressive craniotomy were performed...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28808596/the-severity-of-intracranial-hemorrhages-measured-by-free-hemoglobin-in-the-brain-depends-on-the-anticoagulant-class-experimental-data
#5
Kyle M Ware, Douglas L Feinstein, Israel Rubinstein, Prudhvi Battula, Jose Otero, Lee Hebert, Tzu-Fei Wang, Alexandra Ivanova, Shweta Chaudhary, Jessica Hemminger, Sergey V Brodsky
Background and Purpose. Anticoagulant therapy is broadly used to prevent thromboembolic events. Intracranial hemorrhages are serious complications of anticoagulation, especially with warfarin. Direct oral anticoagulants reduce but do not eliminate the risk of intracranial hemorrhages. The aim of this study is to determine the degree of intracranial hemorrhage after application of anticoagulants without additional triggers. Methods. Rats were treated with different anticoagulant classes (vitamin K antagonists, heparin, direct thrombin inhibitor, and factor Xa inhibitor)...
2017: Stroke Research and Treatment
https://www.readbyqxmd.com/read/28806641/acute-ethanol-administration-results-in-a-protective-cytokine-and-neuroinflammatory-profile-in-traumatic-brain-injury
#6
Akila Chandrasekar, Florian Olde Heuvel, Annette Palmer, Birgit Linkus, Albert C Ludolph, Tobias M Boeckers, Borna Relja, Markus Huber-Lang, Francesco Roselli
Ethanol intoxication is a common comorbidity in traumatic brain injury. To date, the effect of ethanol on TBI pathogenic cascades and resulting outcomes remains debated. A closed blunt weight-drop murine TBI model has been implemented to investigate behavioral (by sensorimotor and neurological tests), and neuro-immunological (by tissue cytokine arrays and immuno-histology) effects of ethanol intoxication on TBI. The effect of the occurrence of traumatic intracerebral hemorrhage was also studied. The results indicate that ethanol pretreatment results in a faster and better recovery after TBI with reduced infiltration of leukocytes and reduced microglia activation...
August 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28805753/-prognostic-significance-of-leukocyte-count-in-the-venous-blood-in-the-acute-stage-of-cerebral-aneurism-rupture
#7
A A Kalinkin, S S Petrikov, L T Khamidova, V V Krylov
AIM: To determine a prognostic role of leukocyte count in the venous blood in the acute stage of cerebral aneurysm (CA) rupture. MATERIAL AND METHODS: Fifty-one patients with CA rupture, aged from 20 to 65 years, hospitalized in the first 72 h over the period from 01.10.12 to 01.02.16 were examined. The severity of disease and anatomical form of hemorrhage was corresponded to III-IV degree on the W. Hunt - R. Hess scale and Fisher scale. All patients underwent surgery...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28805663/yap-taz-regulates-sprouting-angiogenesis-and-vascular-barrier-maturation
#8
Jongshin Kim, Yoo Hyung Kim, Jaeryung Kim, Do Young Park, Hosung Bae, Da-Hye Lee, Kyun Hoo Kim, Seon Pyo Hong, Seung Pil Jang, Yoshiaki Kubota, Young-Guen Kwon, Dae-Sik Lim, Gou Young Koh
Angiogenesis is a multistep process that requires coordinated migration, proliferation, and junction formation of vascular endothelial cells (ECs) to form new vessel branches in response to growth stimuli. Major intracellular signaling pathways that regulate angiogenesis have been well elucidated, but key transcriptional regulators that mediate these signaling pathways and control EC behaviors are only beginning to be understood. Here, we show that YAP/TAZ, a transcriptional coactivator that acts as an end effector of Hippo signaling, is critical for sprouting angiogenesis and vascular barrier formation and maturation...
August 14, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28804779/language-mapping-using-t2-prepared-bold-functional-mri-in-the-presence-of-large-susceptibility-artifacts-initial-results-in-patients-with-brain-tumor-and-epilepsy
#9
Jun Hua, Xinyuan Miao, Shruti Agarwal, Chetan Bettegowda, Alfredo Quiñones-Hinojosa, John Laterra, Peter C M Van Zijl, James J Pekar, Jay J Pillai
At present, presurgical functional mapping is the most prevalent clinical application of functional magnetic resonance imaging (fMRI). Signal dropouts and distortions caused by susceptibility effects in the current standard echo planar imaging (EPI)-based fMRI images are well-known problems and pose a major hurdle for the application of fMRI in several brain regions, many of which are related to language mapping in presurgical planning. Such artifacts are particularly problematic in patients with previous surgical resection cavities, craniotomy hardware, hemorrhage, and vascular malformation...
June 2017: Tomography: a Journal for Imaging Research
https://www.readbyqxmd.com/read/28803536/bovine-viral-diarrhea-virus-1b-fetal-infection-with-extensive-hemorrhage
#10
Robert W Fulton, Anthony W Confer, Nicholas J Sorensen, Julia F Ridpath, Lurinda J Burge
Bovine viral diarrhea virus (BVDV) 1b was isolated from tissues of a term bovine fetus with petechial hemorrhages noted throughout the body and placenta at autopsy. Fresh lung, kidney, thymus, and liver tissues were examined by direct fluorescent antibody testing and were positive for BVDV antigen and negative for bovine herpesvirus 1 antigen. An organ pool of fresh tissues was positive for noncytopathic (NCP) BVDV-1 by virus isolation. BVDV-1b was identified by sequencing of the 5'-UTR region of the genome...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28803179/bevacizumab-plus-radiosurgery-for-non-squamous-non-small-cell-lung-cancer-patients-with-brain-metastases-a-safe-combination
#11
J Guinde, R Carron, P Tomasini, L Greillier, J Régis, F Barlesi
INTRODUCTION: In the context of bronchial cancers, brain is one of the most frequent sites for metastases. Local treatments of these metastases have evolved and are often combined to obtain greater efficiency, the main objective remains to reduce the symptoms. Radiosurgery is currently used, as a primary option for patients harboring a small numbers of small to middle-sized brain metastases. In non-squamous non-small cell lung cancer (NSCLC), chemotherapy is often associated with bevacizumab...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28802751/acute-management-of-hemostasis-in-patients-with-neurological-injury
#12
REVIEW
M Irem Baharoglu, Anneke Brand, Maria M Koopman, Marinus Vermeulen, Yvo B W E M Roos
Neurological injuries can be divided into those with traumatic and nontraumatic causes. The largest groups are traumatic brain injury (TBI) and nontraumatic stroke. TBI patients may present with intracranial hemorrhages (contusions, or subdural or epidural hematomas). Strokes are ischemic or hemorrhagic. In all these disorders, thrombosis and hemostasis play a major role. Treatment aims to either cease bleeding and/or restore perfusion. We reviewed hemostatic and thrombolytic therapies in patients with neurological injuries by MEDLINE and EMBASE search using various key words for neurological disorders and hemostatic therapies restricted to English language and human adults...
July 13, 2017: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28802522/comprehensive-evaluation-of-diagnostic-and-treatment-strategies-for-idiopathic-spinal-subarachnoid-hemorrhage
#13
Toshihisa Ichiba, Masahiko Hara, Kouichirou Nishikawa, Tomoyuki Tanabe, Masaki Urashima, Hiroshi Naitou
BACKGROUND: Idiopathic spinal subarachnoid hemorrhage (IS-SAH), defined as spinal SAH without apparent cause, is extremely rare. The objective of the present study was to establish a consensus on the diagnosis and management of IS-SAH. METHODS: We enrolled 5 consecutive cases of IS-SAH at our institution, and we enrolled 19 previously published cases as a literature review. The patient presentations, diagnostic test findings, treatment strategies, and outcomes were retrospectively assessed...
August 9, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28802071/microrna-137-and-195-inhibit-vasculogenesis-in-brain-arteriovenous-malformations
#14
Jun Huang, Jianping Song, Meijie Qu, Yang Wang, Qinzhu An, Yaying Song, Wei Yan, Bingshun Wang, Xiaojin Wang, Song Zhang, Xi Chen, Bing Zhao, Peixi Liu, Tongyi Xu, Zhijun Zhang, David A Greenberg, Yongting Wang, Pingjin Gao, Wei Zhu, Guo-Yuan Yang
OBJECTIVES: Brain arteriovenous malformations (AVMs) are the most common cause of non-traumatic intracerebral hemorrhage in young adults. The genesis of brain AVM remains enigmatic. We investigated microRNA (miRNA) expression and its contribution to the pathogenesis of brain AVMs. METHODS: We used a large-scale miRNA analysis on 16 samples including AVMs, hemangioblastoma, and controls to identify a distinct AVM miRNA signature. AVM smooth muscle cells (AVMSMCs) were isolated and identified by flow cytometry and immunohistochemistry and candidate miRNAs were then tested in these cells...
August 12, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28800927/oligomeric-proantho-cyanidins-provides-neuroprotection-against-early-brain-injury-following-subarachnoid-hemorrhage-possibly-via-anti-oxidative-anti-inflammatory-and-anti-apoptotic-effects
#15
Guang-Xu Zhang, Jun Ma, Hu-Chen Lu, Zhen-Nan Ye, Jing Liu, Cheng-Bin Wang
No abstract text is available yet for this article.
August 8, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28798666/nlrp6-inflammasome-ameliorates-brain-injury-after-intracerebral-hemorrhage
#16
Peng-Fei Wang, Zhen-Guang Li, Yong Zhang, Xiao-Hua Ju, Xin-Wu Liu, Ai-Ming Zhou, Jing Chen
NLRP6 inflammasome, one of the important intracellular innate immune sensors, has been shown to regulate immune responses. However, its roles in the intracerebral hemorrhage (ICH) are completely not clear. In the present study, we investigated the expression profile and biological roles of NLRP6 inflammasome in perihematomal brain tissues of mice subjected to ICH. In this study, we investigated the expression profile of NLRP6 inflammasome in the perihematomal brain tissues and explored the biological role of NLRP6 inflammasome upon acute brain injury in mice subjected to ICH...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28797689/can-the-benefits-of-rtpa-treatment-for-stroke-be-improved
#17
REVIEW
D Vivien
Tissue-type plasminogen activator (tPA) is a serine protease well known to promote fibrinolysis. This is why: its recombinant form (rtPA) can be used, either alone or combined with thrombectomy, to promote recanalization/reperfusion following ischemic stroke. However, its overall benefits are counteracted by some of its side-effects, including incomplete lysis of clots, an increased risk of hemorrhagic transformation and the possibility of neurotoxicity. Nevertheless, better understanding of the mechanisms by which tPA influences brain function and promotes its alteration may help in the design of new strategies to improve stroke therapy...
August 7, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28796818/hypercholesterolemia-induced-cerebral-small-vessel-disease
#18
Peter Kraft, Michael K Schuhmann, Cornelia Garz, Solveig Jandke, Daniela Urlaub, Stine Mencl, Alma Zernecke, Hans-Jochen Heinze, Roxana O Carare, Christoph Kleinschnitz, Stefanie Schreiber
BACKGROUND: While hypercholesterolemia plays a causative role for the development of ischemic stroke in large vessels, its significance for cerebral small vessel disease (CSVD) remains unclear. We thus aimed to understand the detailed relationship between hypercholesterolemia and CSVD using the well described Ldlr-/- mouse model. METHODS: We used Ldlr-/- mice (n = 16) and wild-type (WT) mice (n = 15) at the age of 6 and 12 months. Ldlr-/- mice develop high plasma cholesterol levels following a high fat diet...
2017: PloS One
https://www.readbyqxmd.com/read/28796572/endoglin-and-alk1-as-therapeutic-targets-for-hereditary-hemorrhagic-telangiectasia
#19
Lidia Ruiz-Llorente, Eunate Gallardo-Vara, Elisa Rossi, David M Smadja, Luisa M Botella, Carmelo Bernabeu
Hereditary Haemorrhagic Telangiectasia (HHT) is as an autosomal dominant trait characterized by frequent nose bleeds, mucocutaneous telangiectases, arteriovenous malformations (AVMs) of the lung, liver and brain, and gastrointestinal bleedings due to telangiectases. HHT is originated by mutations in genes whose encoded proteins are involved in the transforming growth factor β (TGF-β) family signalling of vascular endothelial cells. In spite of the great advances in the diagnosis as well as in the molecular, cellular and animal models of HHT, the current treatments remain just at the palliative level...
August 10, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28796540/recent-advances-in-targeted-delivery-of-tissue-plasminogen-activator-for-enhanced-thrombolysis-in-ischemic-stroke
#20
Masumeh Zamanlu, Mehdi Farhoudi, Morteza Eskandani, Javad Mahmoudi, Jaleh Barar, Mohammad Rafi, Yadollah Omidi
Tissue plasminogen activator (tPA) is the only FDA approved medical treatment for the ischemic stroke. However, it associates with some inevitable limitations, including: short therapeutic window, extremely short half-life and low penetration in large clots. Systemic administration (i.v./i.a.) may lead to complications such as hemorrhagic conversion in the brain and relapse in the form of re-occlusion. Furthermore, ultrasound has been utilized in combination with contrast agents, echogenic liposome, microspheres or nanoparticles carrying tPA for improving thrombolysis - an approach that has resulted in slight improvement of tPA delivery and facilitated thrombolysis...
August 10, 2017: Journal of Drug Targeting
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