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https://www.readbyqxmd.com/read/28747037/increased-arterial-stiffness-is-an-independent-risk-factor-for-hemorrhagic-transformation-in-ischemic-stroke-undergoing-thrombolysis
#1
Maurizio Acampa, Silvia Camarri, Pietro Enea Lazzerini, Francesca Guideri, Rossana Tassi, Raffaella Valenti, Alessandra Cartocci, Giuseppe Martini
BACKGROUND: Hemorrhagic transformation (HT) is a multifactorial phenomenon and represents a possible complication of ischemic stroke, especially after thrombolytic treatment. Increased arterial stiffness has been associated with intracranial hemorrhage, but there is no evidence of association with HT after thrombolytic therapy. The aim of our study is to investigate a possible link between arterial stiffness and HT occurrence after thrombolytic therapy in patients with ischemic stroke...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28721927/coagulopathy-and-haemorrhagic-progression-in-traumatic-brain-injury-advances-in-mechanisms-diagnosis-and-management
#2
REVIEW
Marc Maegele, Herbert Schöchl, Tomas Menovsky, Hugues Maréchal, Niklas Marklund, Andras Buki, Simon Stanworth
Normal haemostasis depends on an intricate balance between mechanisms of bleeding and mechanisms of thrombosis, and this balance can be altered after traumatic brain injury (TBI). Impaired haemostasis could exacerbate the primary insult with risk of initiation or aggravation of bleeding; anticoagulant use at the time of injury can also contribute to bleeding risk after TBI. Many patients with TBI have abnormalities on conventional coagulation tests at admission to the emergency department, and the presence of coagulopathy is associated with increased morbidity and mortality...
August 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28719459/coagulation-management-in-patients-undergoing-neurosurgical-procedures
#3
Chiara Robba, Rita Bertuetti, Frank Rasulo, Alessando Bertuccio, Basil Matta
PURPOSE OF REVIEW: Management of coagulation in neurosurgical procedures is challenging. In this contest, it is imperative to avoid further intracranial bleeding. Perioperative bleeding can be associated with a number of factors, including anticoagulant drugs and coagulation status but is also linked to the characteristic and the site of the intracranial disorder. The aim of this review will be to focus primarily on the new evidence regarding the management of coagulation in patients undergoing craniotomy for neurosurgical procedures...
July 14, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28718068/dengue-encephalopathy-very-unusual-neuroimaging-findings
#4
Ravindra Kumar Garg, Hardeep Singh Malhotra, Amita Jain, Neeraj Kumar
Neuroimaging, in many patients with dengue encephalopathy, may reveal periventricular signal changes. We report a 25-year-old man, who presented with altered sensorium. Dengue-IgM test in serum was positive. Cerebrospinal fluid examination was normal. MRI brain revealed presence of bilateral parieto-occipital intraparenchymal bleed with mass effect. Neuroimaging was consistent with posterior reversible encephalopathy syndrome. We report posterior reversible encephalopathy syndrome in a normotensive patient with dengue encephalopathy and systemic metabolic alterations...
July 17, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28716153/a-nested-mechanistic-sub-study-into-the-effect-of-tranexamic-acid-versus-placebo-on-intracranial-haemorrhage-and-cerebral-ischaemia-in-isolated-traumatic-brain-injury-study-protocol-for-a-randomised-controlled-trial-crash-3-trial-intracranial-bleeding-mechanistic
#5
Abda Mahmood, Ian Roberts, Haleema Shakur
BACKGROUND: Tranexamic acid prevents blood clots from breaking down and reduces bleeding. However, it is uncertain whether tranexamic acid is effective in traumatic brain injury. The CRASH-3 trial is a randomised controlled trial that will examine the effect of tranexamic acid (versus placebo) on death and disability in 13,000 patients with traumatic brain injury. The CRASH-3 trial hypothesizes that tranexamic acid will reduce intracranial haemorrhage, which will reduce the risk of death...
July 17, 2017: Trials
https://www.readbyqxmd.com/read/28715363/decompressive-craniectomy-vs-craniotomy-only-for-intracranial-hemorrhage-evacuation-a-propensity-matched-study
#6
Faisal Jehan, Asad Azim, Peter Rhee, Muhammad Khan, Lynn Gries, Terence OʼKeeffe, Narong Kulvatunyou, Andrew Tang, Bellal Joseph
BACKGROUND: Decompressive craniectomy (DC) is often performed in conjunction with evacuation of intracranial hemorrhage (ICH) to control intracranial pressure (ICP) in patients with a traumatic brain injury (TBI). The efficacy of DC in lowering ICP is well established, however, its effect on clinical outcomes remains controversial. The aim of our study is to assess outcomes in TBI patients undergoing decompressive craniectomy (DC) vs. craniotomy only (CO) for the evacuation of intracranial hemorrhage...
July 15, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28705401/-are-general-practitioners-in-paris-and-surrounding-areas-reticent-about-direct-oral-anticoagulants
#7
C Caucanas, D Sfeir, C Blas-Châtelain, P Priollet
OBJECTIVE: Determine how familiar general practitioners (GPs) working in Paris and surrounding areas are with prescriptions for direct oral anticoagulants (DOACs). MATERIAL AND METHOD: A questionnaire sent to 189 GP working in Paris and surrounding areas yielded 100 responses. Data collected included a brief summary of sociodemographic items, comparative knowledge about DOACs and vitamin K antagonists (VKAs), and responses to two clinical situations for DOAC prescriptions (renewal of a first prescription)...
May 2017: J Med Vasc
https://www.readbyqxmd.com/read/28704925/licochalcone-a-prevents-platelet-activation-and-thrombus-formation-through-the-inhibition-of-plc%C3%AE-2-pkc-akt-and-mapk-pathways
#8
Li-Ming Lien, Kuan-Hung Lin, Li-Ting Huang, Mei-Fang Tseng, Hou-Chang Chiu, Ray-Jade Chen, Wan-Jung Lu
Platelet activation is involved in cardiovascular diseases, such as atherosclerosis and ischemic stroke. Licochalcone A (LA), an active ingredient of licorice, exhibits multiple biological activities such as anti-oxidation and anti-inflammation. However, its role in platelet activation remains unclear. Therefore, the study investigated the antiplatelet mechanism of LA. Our data revealed that LA (2-10 μM) concentration dependently inhibited platelet aggregation induced by collagen, but not thrombin and U46619...
July 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28702359/cerebral-toxoplasmosis-requiring-urgent-brain-biopsy
#9
Moamen Al Zoubi, Beenish Zulfiqar, Mandavi Kulkarni
A 39-yerar-old man was admitted to our hospital with behavioral disturbances and generalized headaches. He was diagnosed with CNS toxoplasmosis after performing a brain biopsy. He found to be HIV positive with a CD4 of 14/uL He was started on ant toxoplasmosis along with antiretroviral therapy. He presented 6 weeks after discharge with worsening headache thought to be related to relapse of toxoplasmosis. However, he found to have severe anemia related to CMV-induced gastrointestinal bleeding. He was started on anti-cytomegalovirus drugs and has finally achieved significant improvement...
2017: IDCases
https://www.readbyqxmd.com/read/28700540/clinical-and-radiological-presentations-and-management-of-blunt-splenic-trauma-a-single-tertiary-hospital-experience
#10
Gaby Jabbour, Ammar Al-Hassani, Ayman El-Menyar, Husham Abdelrahman, Ruben Peralta, Mohammed Ellabib, Hisham Al-Jogol, Mohammed Asim, Hassan Al-Thani
BACKGROUND Splenic injury is the leading cause of major bleeding after blunt abdominal trauma. We examined the clinical and radiological presentations, management, and outcome of blunt splenic injuries (BSI) in our institution. MATERIAL AND METHODS A retrospective study of BSI patients between 2011 and 2014 was conducted. We analyzed and compared management and outcome of different splenic injury grades in trauma patients. RESULTS A total of 191 BSI patients were identified with a mean (SD) age of 26.9 years (13...
July 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28698874/preclinical-studies-and-translational-applications-of-intracerebral-hemorrhage
#11
REVIEW
Felix Siaw-Debrah, Mark Nyanzu, Haoqi Ni, Xiao Lin, Zhu Xu, Linhui Ruan, Qichuan Zhuge, Lijie Huang
Intracerebral hemorrhage (ICH) which refers to bleeding in the brain is a very deleterious condition with high mortality and disability rate. Surgery or conservative therapy remains the treatment option. Various studies have divided the disease process of ICH into primary and secondary injury, for which knowledge into these processes has yielded many preclinical and clinical treatment options. The aim of this review is to highlight some of the new experimental drugs as well as other treatment options like stem cell therapy, rehabilitation, and nanomedicine and mention some translational clinical applications that have been done with these treatment options...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28696502/linking-brain-arteriovenous-malformations-with-anorectal-hemorrhoids-a-clinical-and-anatomical-review
#12
REVIEW
Joshua A Cuoco, Christopher L Hoehmann, Kyle Hitscherich, Sherry M Zakhary, Joerg R Leheste, German Torres
Patients who harbor brain arteriovenous malformations are at risk for intracranial hemorrhage. These malformations are often seen in inherited vascular diseases such as hereditary hemorrhagic telangiectasia. However, malformations within the brain also sporadically occur without a hereditary-coding component. Here, we review recent insights into the pathophysiology of arteriovenous malformations, in particular, certain signaling pathways that might underlie endothelial cell pathology. To better interpret the origins, determinants and consequences of brain arteriovenous malformations, we present a clinical case to illustrate the phenotypic landscape of the disease...
July 11, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28695548/design-of-the-swiss-atrial-fibrillation-cohort-study-swiss-af-structural-brain-damage-and-cognitive-decline-among-patients-with-atrial-fibrillation
#13
David Conen, Nicolas Rodondi, Andreas Mueller, Juerg Beer, Angelo Auricchio, Peter Ammann, Daniel Hayoz, Richard Kobza, Giorgio Moschovitis, Dipen Shah, Juerg Schlaepfer, Jan Novak, Marcello di Valentino, Paul Erne, Christian Sticherling, Leo Bonati, Georg Ehret, Laurent Roten, Urs Fischer, Andreas Monsch, Christoph Stippich, Jens Wuerfel, Matthias Schwenkglenks, Michael Kuehne, Stefan Osswald
BACKGROUND: Several studies found that patients with atrial fibrillation (AF) have an increased risk of cognitive decline and dementia over time. However, the magnitude of the problem, associated risk factors and underlying mechanisms remain unclear. METHODS: This article describes the design and methodology of the Swiss Atrial Fibrillation (Swiss-AF) Cohort Study, a prospective multicentre national cohort study of 2400 patients across 13 sites in Switzerland. Eligible patients must have documented AF...
July 11, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28681759/dose-fractionated-gamma-knife-radiosurgery-for-large-arteriovenous-malformations-on-daily-or-alternate-day-schedule-outside-the-linear-quadratic-model-proof-of-concept-and-early-results-a-substitute-to-volume-fractionation
#14
Kanchan Kumar Mukherjee, Narendra Kumar, Manjul Tripathi, Arun S Oinam, Chirag K Ahuja, Sivashanmugam Dhandapani, Rakesh Kapoor, Sushmita Ghoshal, Rupinder Kaur, Sandeep Bhatt
BACKGROUND: To evaluate the feasibility, safety and efficacy of dose fractionated gamma knife radiosurgery (DFGKRS) on a daily schedule beyond the linear quadratic (LQ) model, for large volume arteriovenous malformations (AVMs). MATERIAL AND METHODS: Between 2012-16, 14 patients of large AVMs (median volume 26.5 cc) unsuitable for surgery or embolization were treated in 2-3 of DFGKRS sessions. The Leksell G frame was kept in situ during the whole procedure. 86% (n = 12) patients had radiologic evidence of bleed, and 43% (n = 6) had presented with a history of seizures...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28677497/platelets-their-potential-contribution-to-the-generation-of-beta-amyloid-plaques-in-alzheimer-s-disease
#15
Christian Humpel
BACKGROUND: Alzheimer's disease is a severe neurodegenerative brain disorder, showing severe beta-amyloid depositions in the brain (plaques) and in vessels (cerebral amyloid angiopathy, CAA), tau pathology, neurodegeneration (and loss of acetylcholine), inflammation with reactive astrocytes and microglia and cerebrovascular damage, all resulting in memory loss. METHODS AND RESULTS: In this review I present a hypothesis that chronic vascular lesions and bleedings cause platelet overactivation and repair...
July 5, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28674367/neuromyelitis-optica-spectrum-disorder-with-recurrent-intracranial-hemorrhage
#16
Hiroaki Yaguchi, Yasunori Mito, Ikkei Ohashi, Taichi Nomura, Ichiro Yabe, Yasutaka Tajima
The patient was a woman without hypertension who had previously experienced intracranial hemorrhage twice at 48 and 56 years of age. At 59 years of age, she was diagnosed with neuromyelitis optica spectrum disorder (NMOSD) based on the presence of a brain stem lesion and the detection of anti-aquaporin 4 (AQP4) antibodies. After 5 months of continuous treatment with prednisolone (15 mg/day), she presented with optic neuritis and intracranial bleeding. A recurrent attack of NMOSD and intracranial hemorrhage were concurrently diagnosed...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28672284/association-of-concussion-with-abnormal-menstrual-patterns-in-adolescent-and-young-women
#17
Meredith L Snook, Luke C Henry, Joseph S Sanfilippo, Anthony J Zeleznik, Anthony P Kontos
Importance: Brain injury may interrupt menstrual patterns by altering hypothalamic-pituitary-ovarian axis function. Investigators have yet to evaluate the association of concussion with menstrual patterns in young women. Objective: To compare abnormal menstrual patterns in adolescent and young women after a sport-related concussion with those after sport-related orthopedic injuries to areas other than the head (nonhead). Design, Setting, and Participants: This prospective cohort study of adolescent and young women with a sport-related concussion (n = 68) or a nonhead sport-related orthopedic injury (n = 61) followed up participants for 120 days after injury...
July 3, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28668647/toxicological-evaluation-of-the-aqueous-whole-plant-extract-of-aerva-lanata-l-juss-ex-schult-amaranthaceae
#18
Kayode S Omotoso, Flora R Aigbe, Olanrewaju A Salako, Micah C Chijioke, Oluwafunmilayo O Adeyemi
ETHNOPHARMACOLOGICAL RELEVANCE: Aerva lanata (L.) of the family Amaranthaceae is a Nigerian medicinal plant used traditionally for the management of lithiasis, headache, renal disorder, haematemesis, bronchitis, nasal bleeding, cough, scorpion stings, fractures and spermatorrhoea. Studies that show the pharmacological basis for some of such uses have been reported. There is, however, no scientific report on its toxicity profile to the best of our knowledge. AIM OF THE STUDY: This study was therefore aimed at investigating the toxicity profile of the aqueous extract of Aerva lanata...
June 28, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28665060/clinical-impacts-of-donor-types-of-living-vs-deceased-donors-predictors-of-one-year-mortality-in-patients-with-liver-transplantation
#19
Eun Jung Kim, Seungjin Lim, Chong Woo Chu, Je Ho Ryu, Kwangho Yang, Young Mok Park, Byung Hyun Choi, Tae Beom Lee, Su Jin Lee
Transplantation studies about the clinical differences according to the type of donors are mostly conducted in western countries with rare reports from Asians. The aims of this study were to evaluate the clinical impacts of the type of donor, and the predictors of 1-year mortality in patients who underwent liver transplantation (LT). This study was performed for liver transplant recipients between May 2010 and December 2014 at the Pusan National University Yangsan Hospital. A total of 185 recipients who underwent LT were analyzed...
August 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28658522/platelet-activation-by-crushed-and-uncrushed-muscle-a-flow-cytometry-analysis
#20
Alistair Jukes, Dijana Miljkovic, P J Wormald, Alkis J Psaltis
BACKGROUND: Crushed autologous muscle is used in skull base surgery in the acute phase of major arterial hemorrhage to stop bleeding. The mechanism of this is not yet clear, but is thought to involve the formation of a platelet plug, which seals the vessel wall defect but still allows ongoing blood flow to the brain. METHODS: In this study we use flow cytometry to replicate the in-vivo actions of crushed muscle on platelets in whole blood. We compare the ratio of activation of platelets exposed to crushed and uncrushed muscle supernatant in control patients and in patients on antiplatelet agents...
June 28, 2017: International Forum of Allergy & Rhinology
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