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hemorrhagic infarction

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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/28811932/two-novel-direct-spio-labels-and-in%C3%A2-vivo-mri-detection-of-labeled-cells-after-acute-myocardial-infarct
#2
Riikka M Korpi, Kirsi Alestalo, Timo Ruuska, Eveliina Lammentausta, Ronald Borra, Fredrik Yannopoulos, Siri Lehtonen, Jarkko T Korpi, Elisa Lappi-Blanco, Vesa Anttila, Petri Lehenkari, Tatu Juvonen, Roberto Blanco Sequieros
BACKGROUND: Acute myocardial infarction (AMI) is a leading cause of morbidity and mortality worldwide. Cellular decay due hypoxia requires rapid and validated methods for possible therapeutic cell transplantation. PURPOSE: To develop direct and rapid superparamagnetic iron oxide (SPIO) cell label for a large-animal model and to assess in vivo cell targeting by magnetic resonance imaging (MRI) in an experimental AMI model. MATERIAL AND METHODS: Bone marrow mononuclear cells (BMMNCs) were labeled with SPIO particles using two novel direct labeling methods (rotating incubation method and electroporation)...
August 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28808606/middle-cerebral-artery-dissection-causing-subarachnoid-hemorrhage-and-cerebral-infarction-trapping-with-high-flow-bypass-preserving-the-lenticulostriate-artery
#3
Hideaki Ono, Tomohiro Inoue, Shinya Suematsu, Takeo Tanishima, Akira Tamura, Isamu Saito, Nobuhito Saito
BACKGROUND: Spontaneous intracranial arterial dissection (IAD) is an increasingly important cause of stroke, such as subarachnoid hemorrhage (SAH) and hemodynamic or thromboembolic cerebral ischemia. IAD usually occurs in the posterior circulation, and is relatively rare in the anterior circulation including the middle cerebral artery (MCA). Various surgical and endovascular methods to reduce blood flow in the dissected lesion have been proposed, but no optimum treatment has been established...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28803174/intraoperative-vascular-neuromonitoring-in-patients-with-subarachnoid-hemorrhage-a-pilot-study-using-combined-laser-doppler-spectrophotometry
#4
Emilija Schmitz, Barbara Bischoff, Dennis Wolf, Hubert Schmitt, Ilker Y Eyupoglu, Karl Roessler, Michael Buchfelder, Björn Sommer
OBJECTIVE: Intraoperative monitoring of cerebral microcirculation in patients with subarachnoid hemorrhage (SAH) may predict the postoperative neurological outcome. In this pilot study, we examined the value of a novel non-invasive real-time measurement technique to detect changes in local microcirculation. METHODS: We used the laser-Doppler spectrophotometry system "Oxygen-to-see(O2C)" in 14 patients with SAH Hunt & Hess grade 2 to 5, who underwent microsurgical clipping of cerebral aneurysms...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28800983/gastrointestinal-complications-after-cardiac-surgery-a-nationwide-population-based-analysis-of-morbidity-and-mortality-predictors
#5
Rabail Chaudhry, John Zaki, Robert Wegner, Greesha Pednekar, Alex Tse, Roy Sheinbaum, George W Williams
OBJECTIVE: The authors aimed to evaluate the incidence, risk factors, and outcomes of gastrointestinal (GI) complications in cardiac and aortic surgery using recent versions of the National (Nationwide) Inpatient Sample (NIS) to provide clinicians with a better understanding of these uncommon but potentially serious complications. DESIGN: Population-based study. SETTING: NIS database 2010-2012. PARTICIPANTS: Patients undergoing cardiac and aortic aneurysm repair surgeries...
August 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28799869/predictive-factors-of-medullary-infarction-after-endovascular-internal-trapping-using-coils-for-vertebral-artery-dissecting-aneurysms
#6
Masanori Aihara, Isao Naito, Tatsuya Shimizu, Masahiro Matsumoto, Ken Asakura, Naoko Miyamoto, Yuhei Yoshimoto
OBJECTIVE The first choice of treatment in cases of vertebral artery dissecting aneurysms (VADAs) is endovascular internal trapping (EIT) of the dissecting segment using coils. However, this procedure carries the risk of medullary infarction, and the risk factors for this complication are not well understood. This study investigated the risk factors causing medullary infarction. METHODS One hundred patients who underwent EIT for VADAs were included in this study. Ninety-three patients presented with subarachnoid hemorrhage...
August 11, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28797175/role-of-lipids-and-intraplaque-hypoxia-in-the-formation-of-neovascularization-in-atherosclerosis
#7
Dimitry A Chistiakov, Alexandra A Melnichenko, Veronika A Myasoedova, Andrey V Grechko, Alexander N Orekhov
According to the current paradigm, chronic vascular inflammation plays a central role in the pathogenesis of atherosclerosis. The plaque progression is typically completed with rupture and subsequent acute cardiovascular complications. Previously, the role of adventitial vasa vasorum in atherogenesis was underestimated. However, investigators then revealed that vasa vasorum neovascularization can be observed when no clinical manifestation of atherosclerosis is present. Vasa vasorum is involved in various proatherogenic processes such as intimal accumulation of inflammatory leukocytes, intimal thickening, necrotic core formation, intraplaque hemorrhage, lesion repture, and atherothrombosis...
August 11, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28790215/-a-case-of-ruptured-distal-anterior-choroidal-artery-aneurysm-associated-with-a-twig-like-middle-cerebral-artery-treated-with-single-stage-aneurysm-clipping-and-sta-mca-double-anastomoses-in-the-acute-phase
#8
Toshimoto Seno, Kanehisa Kohno, Hideo Tanaka, Shinji Iwata, Shinya Fukumoto, Haruhisa Ichikawa, Noriyuki Fumoto, Akihiro Inoue, Saya Ozaki, Yawara Nakamura, Shohei Kohno, Shiro Ohue
We report the case of a patient who has progressed well over 5 years following single-stage aneurysm clipping and superficial temporal artery-middle cerebral artery(STA-MCA)double anastomoses in the acute phase, for a ruptured distal anterior choroidal artery(AChA)aneurysm accompanied by a twig-like MCA. The patient was a 49-year-old female who developed a sudden severe headache and disturbance of consciousness due to subarachnoid hemorrhage and intraventricular hemorrhage(IVH). Cerebral angiography showed a right twig-like MCA associated with an abnormal vascular network and a ruptured aneurysm in the distal AChA...
August 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28783808/recrudescence-of-deficits-after-stroke-clinical-and-imaging-phenotype-triggers-and-risk-factors
#9
Mehmet A Topcuoglu, Esen Saka, Scott B Silverman, Lee H Schwamm, Aneesh B Singhal
Importance: Reemergence of previous stroke-related deficits (or poststroke recrudescence [PSR]) is an underrecognized and inadequately characterized phenomenon. Objective: To investigate the clinical features, triggers, and risk factors for PSR. Design, Setting, and Participants: This retrospective study incorporated a crossover cohort study to identify triggers and a case-control study to identify risk factors. The study used the Massachusetts General Hospital Research Patient Data Repository to identify patients for the period January 1, 2000, to November 30, 2015, who had a primary or secondary diagnosis of cerebrovascular disease, who underwent magnetic resonance imaging of the brain at least once, and whose inpatient or outpatient clinician note or discharge summary stated the term recrudescence...
August 7, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28770952/an-effective-indicator-in-predicting-cardiovascular-events-urine-albumin-to-creatinine-ratio
#10
H Zhao, Y-F Jiang, X-C Zhou, L Yao, J Chen, D Wang, D-Y Fu
OBJECTIVE: To study elderly hypertensive patients with trace albuminuria (urine albumin to creatinine ratio (UACR)) and the relationship between the occurrence of new cardiovascular events, to provide a basis for early prevention in elderly patients with high blood pressure. PATIENTS AND METHODS: A total of 3564 elderly patients with high blood pressure were enrolled in the study. Based on UACR, patients were divided into four groups (group A: 0.05-3.20 mg/g; group B:3...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28765760/study-design-of-general-general-practitioners-and-embolism-prevention-in-nvaf-patients-treated-with-rivaroxaban-real-life-evidence-a-multicenter-prospective-cohort-study-in-primary-care-physicians-to-investigate-the-effectiveness-and-safety-of-rivaroxaban-in
#11
Kengo Kusano, Masaharu Akao, Hikari Tsuji, Kunihiko Matsui, Shinya Hiramitsu, Yutaka Hatori, Hironori Odakura
BACKGROUND: Rivaroxaban, a direct oral anticoagulant (DOAC), has become available for stroke prevention in patients with non-valular atrial fibrillation (NVAF). However, little is known about its effectiveness and safety when prescribed by general practitioners in real-life settings. METHODS: GENERAL is a multicenter, prospective, non-interventional observational study of patients receiving rivaroxaban for NVAF in daily clinical practice prescribed specifically by general practitioners...
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28762878/long-acting-statin-for-aneurysmal-subarachnoid-hemorrhage-a-randomized-double-blind-placebo-controlled-trial
#12
Masato Naraoka, Naoya Matsuda, Norihito Shimamura, Kenichiro Asano, Kenichi Akasaka, Atsuhito Takemura, Seiko Hasegawa, Hiroki Ohkuma
Statins have pleiotropic effects that are considered beneficial in preventing cerebral vasospasm and delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage (aSAH). Many studies using statins have been performed but failed to show remarkable effects. We hypothesized that a long-acting statin would be more effective, due to a longer half-life and stronger pleiotropic effects. Patients with aSAH were randomly assigned to a pitavastatin group (4 mg daily; n = 54) and a placebo group ( n = 54) after repair of a ruptured aneurysm...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28762110/technique-for-rerouting-a-bridging-vein-that-hinders-the-anterior-interhemispheric-approach-a-technical-note
#13
Kenta Ohara, Tomohiro Inoue, Hideaki Ono, Satoshi Kiyofuji, Akira Tamura, Isamu Saito
BACKGROUND: The frontal bridging vein, which is the venous drainage route of the frontal cortex into the superior sagittal sinus (SSS), sometimes poses an obstacle in the anterior interhemispheric approach during surgery for anterior cerebral artery aneurysms. Although severe complications including venous infarction or edema due to damage to the bridging vein are well known, only a few reports have discussed how to avoid venous injury when we must sacrifice the bridging vein to obtain an appropriate surgical field...
August 1, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28760409/development-and-reliability-of-a-user-friendly-multicenter-phenotyping-application-for-hemorrhagic-and-ischemic-stroke
#14
Mayowa Owolabi, Godwin Ogbole, Rufus Akinyemi, Kehinde Salaam, Onoja Akpa, Pattanasak Mongkolwat, Adeleye Omisore, Atinuke Agunloye, Richard Efidi, Joseph Odo, Akintomiwa Makanjuola, Albert Akpalu, Fred Sarfo, Lukman Owolabi, Reginald Obiako, Kolawole Wahab, Emmanuel Sanya, Philip Adebayo, Morenikeji Komolafe, Abiodun Moshood Adeoye, Joshua Akinyemi, Godwin Osaigbovo, Taofiki Sunmonu, Paul Olowoyo, Innocent Chukwuonye, Yahaya Obiabo, Philip Ibinaiye, Abdul Dambatta, Yaw Mensah, Salaam Abdul, Eunice Olabinri, Joyce Ikubor, Olalekan Oyinloye, Femi Odunlami, Ezinne Melikam, Raelle Saulson, Philip Kolo, Adesola Ogunniyi, Bruce Ovbiagele
BACKGROUND: Annotation and Image Markup on ClearCanvas Enriched Stroke-phenotyping Software (ACCESS) is a novel stand-alone computer software application that allows the creation of simple standardized annotations for reporting brain images of all stroke types. We developed the ACCESS application and determined its inter-rater and intra-rater reliability in the Stroke Investigative Research and Educational Network (SIREN) study to assess its suitability for multicenter studies. METHODS: One hundred randomly selected stroke imaging reports from 5 SIREN sites were re-evaluated by 4 trained independent raters to determine the inter-rater reliability of the ACCESS (version 12...
July 28, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28758099/platelet-expression-of-pkcepsilon-oncoprotein-in-myelofibrosis-is-associated-with-disease-severity-and-thrombotic-risk
#15
Elena Masselli, Cecilia Carubbi, Giulia Pozzi, Silvia Martini, Franco Aversa, Daniela Galli, Giuliana Gobbi, Prisco Mirandola, Marco Vitale
BACKGROUND: Myelofibrosis (MF) is the most aggressive Philadelphia-negative chronic myeloproliferative neoplasm (MPN) with high morbidity and mortality due to thrombo-hemorrhagic complications and leukemic transformation. MF is characterized by profound alterations of megakaryocytopoiesis, with consequent abnormalities in platelet number and function. We recently showed that the overexpression of the oncoprotein PKCepsilon plays a key role in the aberrant differentiation of MF megakaryocyte clone and that its levels correlate with disease burden...
July 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28758088/lipoma-compressing-the-sciatic-nerve-in-a-patient-with-suspicious-central-post-stroke-pain
#16
Ju Yong Kim, Hyun Jung Koo, Geun-Young Park, Yongmin Choi
Lipomas are mostly located in the subcutaneous tissues and rarely cause symptoms. Occasionally, peripheral nerve compression by lipomas is reported. We describe a case of a 59-year-old man with a left-middle cerebral artery infarction who was newly diagnosed as right basal ganglia and thalamic intracranial hemorrhage. He had neuropathic pain in the left arm and leg that was suspected to be central post-stroke pain. The administration of pain medication brought only temporary symptom relief. Nerve conduction and electromyography studies revealed left L5 radiculopathy and he showed a positive 'sign of the buttock' in the left hip...
June 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28746925/pulmonary-arteriovenous-malformations-are-associated-with-silent-brain-infarcts-in-hereditary-hemorrhagic-telangiectasia-patients
#17
Waleed Brinjikji, Deena M Nasr, Christopher P Wood, Vivek N Iyer
BACKGROUND AND PURPOSE: There is a high prevalence of right-to-left shunting pulmonary arteriovenous malformations (PAVMs), which are stroke risk factors, in hereditary hemorrhagic telangiectasia (HHT) patients. While the prevalence of ischemic complications in HHT patients is known, the prevalence of silent brain infarcts (SBI) remains unknown. The purpose of this study was to determine the prevalence and risk factors for SBI in HHT patients. MATERIALS AND METHODS: Our institutional HHT database was queried to identify HHT patients who received a baseline screening brain MRI from January 2000 to February 2017...
July 27, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28746425/the-direct-first-pass-aspiration-technique-in-the-treatment-of-acute-ischemic-stroke-resulting-from-large-vessel-occlusions
#18
Luís Henrique de Castro-Afonso, Guilherme Seizem Nakiri, Lucas Moretti Monsignore, Pedro Telles Cougo-Pinto, Francisco Antunes Dias, Frederico Aléssio-Alves, Octávio Marques Pontes-Neto, Daniel Giansante Abud
Methods: Recanalization was assessed using the modified thrombolysis in cerebral infarction (mTICI) score. Neurological outcomes were assessed using the National Institutes of Health Stroke Scale and modified Rankin Scale. Results: Fifteen patients were evaluated. The mTICI score was 2b-3 in 80%, and it was 3 in 60% of patients. No intracranial hemorrhage was seen. At three months, modified Rankin Scale scores ≤ 2 were observed in 60% of patients and the mortality rate was 13...
July 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28742195/the-use-of-susceptibility-weighted-imaging-to-detect-cerebral-microbleeds-after-lacunar-infarction
#19
L Shao, M Wang, X-H Ge, H-D Huang, L Gao, J-C Qin
OBJECTIVE: To study the value of susceptibility-weighted imaging (SWI) technology to detect cerebral microbleeds (CMBs) in senile cerebral lacunar infarction patients; and to evaluate the complicated cerebral hemorrhage risk after patients with CMBs took aspirin, an antiplatelet medication or received anticoagulant therapy. PATIENTS AND METHODS: MRI scanning, using GRE-T2*WI, SWI and FSE sequences (T1WI, T2WI, and T2FLAIR), was performed on the three groups: (1) a cerebral lacunar infarction group; (2) cerebral lacunar infarction with cerebral microbleeds (CMBs) group; and (3) a healthy elderly group...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28739362/stroke-in-ehlers-danlos-syndrome-kyphoscoliotic-type-dissection-or-vasculitis
#20
Annegret Quade, Martin Wiesmann, Joachim Weis, Ingo Kurth, Houman Jalaie, Marianne Rohrbach, Martin Häusler
BACKGROUND: Patients with the kyphoscoliotic type of Ehlers-Danlos syndrome have an increased risk of vascular complications such as aortic dissection and perforation. Cerebral ischemia has only rarely been documented. PATIENT DESCRIPTION: This 13-year-old girl with the kyphoscoliotic type of Ehlers-Danlos syndrome had a large right middle cerebral artery distribution infarction. Full intravenous heparinization was started in response to presumed arterial dissection...
May 29, 2017: Pediatric Neurology
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