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Arterial thrombosis

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https://www.readbyqxmd.com/read/29683226/low-incidence-of-heparin-induced-skin-lesions-in-orthopedic-surgery-patients-with-low-molecular-weight-heparins
#1
M Schindewolf, M Paulik, H Kroll, R Kaufmann, M Wolter, W-H Boehncke, E Lindhoff-Last, A Recke, R J Ludwig
BACKGROUND: Heparins are widely prescribed for prevention and therapy of arterial and venous thromboembolic diseases. Heparin-induced skin lesions are the most frequent adverse effects of subcutaneous heparin treatment in non-surgical patients (7.5-39.8%); no data exist on surgical patients. Commonly, they are due to a delayed-type hypersensitivity reaction (DTH), but may also be a manifestation of life-threatening heparin-induced thrombocytopenia (HIT). Lesions of both entities resemble initially...
April 23, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29681825/arterial-spin-labeling-imaging-of-a-giant-aneurysm-leading-to-subarachnoid-hemorrhage-following-cerebral-infarction
#2
Tatsuya Ueno, Tatsuya Sasaki, Masatoshi Iwamura, Tomoya Kon, Jin-Ichi Nunomura, Hiroshi Midorikawa, Masahiko Tomiyama
An 83-year-old Japanese man was admitted with dysarthria and right hemiparesis. He had had a large intracranial aneurysm on the left internal carotid artery 5 years before admission and had been followed up under conservative treatment. On admission, diffusion-weighted imaging revealed a hyperintense signal on the left anterior choroidal artery territory. Time-of-flight magnetic resonance angiography demonstrated poor visibility of the middle and anterior cerebral arteries and the inferior giant aneurysm, suggesting distal emboli from aneurysm thrombosis or a reduction of blood outflow due to aneurysm thrombosis...
January 2018: Case Reports in Neurology
https://www.readbyqxmd.com/read/29680819/a-single-center-experience-in-the-endovascular-treatment-of-carotid-siphon-aneurysms-using-the-willis-covered-stent-a-retrospective-analysis
#3
Lin Ma, Ji-Chong Xu, Shuo Yan, Hao Feng, Hong-Jie Han, Hua-Qiao Tan, Chun Fang, Hong-En Huang
OBJECTIVE: To report the clinical results and initial clinical experience of endovascular isolation with the Willis covered stent for carotid siphon aneurysms. METHODS: Between November 2013 and December 2016, a total of 57 patients who presented with carotid siphon aneurysms were treated with the Willis covered stent. Results of the procedures, technical events, and complications were recorded. Clinical and imaging follow-ups were performed at 3 months following the endovascular procedures...
April 21, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29680403/formation-of-microcapsules-by-ultrasound-stimulation-for-use-in-remote-controlled-drug-eluting-stents
#4
Wei Yao, Yan Bao, Yu Chen
Coronary Heart Disease (CHD) is the leading cause of death globally. The placement of drug-eluting stents (DESs) in diseased coronary arteries is the most successful minimally-invasive intervention to treat CHD. The key limitations of such interventional therapy are the risk of in-stent restenosis (ISR) and late stent thrombosis. This paper investigates a new drug-release system by formatting nanoparticles as drug carriers, which are later subjected to an external ultrasonic stimulus for controlled drug release remotely for DESs...
April 18, 2018: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29680297/early-results-of-percutaneous-arteriovenous-fistula-creation-with-the-ellipsys-vascular-access-system
#5
Alexandros Mallios, William C Jennings, Benoit Boura, Alessandro Costanzo, Pierre Bourquelot, Myriam Combes
OBJECTIVE: We reviewed our initial experience creating a percutaneous arteriovenous fistula (pAVF) using a thermal resistance anastomosis device with proximal radial artery inflow. METHODS: A retrospective review was conducted of all patients who underwent a pAVF creation procedure between May 2017 and October 2017. Primary end points of the study were technical success, patency by Doppler ultrasound examination or angiography, flow levels achieved, time to first use, and pAVF-related complications...
April 18, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29678653/continued-ultrasound-surveillance-required-after-hand-ischemia-associated-with-trauma-in-children
#6
Melissa L Kirkwood, Khalil H Chamseddin, Brianne Hanson, Carlos H Timaran, Mujtaba Ali, Alexis D Jacob, John E Rectenwald
BACKGROUND: Hand ischemia following trauma in children is rare and the natural history after upper extremity arterial bypass in children is unknown. We hypothesize children with brachial artery repair are at long term risk of developing aneurysmal degeneration or Thrombosis thus necessitating annual duplex ultrasonography and physical examination. STUDY DESIGN: A retrospective review of children who had brachial artery repair (bypass or vein patch) for hand ischemia secondary to trauma at a level I trauma pediatric hospital was performed...
April 17, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29678647/post-mortem-retrieval-of-arterial-allografts-preliminary-results
#7
Dorian Verscheure, Julien Gaudric, Jérémie Jayet, Philippe Tresson, Mohamed Jarraya, Pierre Julia, Marc Coggia, Laurent Chiche, Fabien Koskas
OBJECTIVES: Cryopreserved arterial allografts are vascular substitutes used for arterial reconstructions in a septic field. Their use remains however limited by the shortage of donors. One of the possibilities to address this lack of grafts is to multiply the sources of retrieval. The objective of this preliminary study was the evaluation of the early clinical results and the microbiological safety of arterial grafts retrieved after death. MATERIAL AND METHODS: In addition to the standard conditions of arterial sampling the criteria of inclusion for postmortem retrieval comprised the refrigeration of the body of the donor within four hours following the death, a 24-hour time limit from the death, and the availability of an adapted place for retrieval (surgical unit or death chamber respecting the required aseptic conditions)...
April 17, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29675625/multidetector-ct-of-iatrogenic-and-self-inflicted-vascular-lesions-and-infections-at-the-groin
#8
REVIEW
Massimo Tonolini, Anna Maria Ierardi, Gianpaolo Carrafiello, Domenico Laganà
The number and complexity of endovascular procedures performed via either arterial or venous access are steadily increasing. Albeit associated with higher morbidity compared to the radial approach, the traditional common femoral artery remains the preferred access site in a variety of cardiac, aortic, oncologic and peripheral vascular procedures. Both transarterial and venous cannulation (for electrophysiology, intravenous laser ablation and central catheterisation) at the groin may result in potentially severe vascular access site complications (VASC)...
April 19, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29675441/acute-bilateral-lower-extremity-paralysis-secondary-to-acute-thrombosis-of-an-infrarenal-abdominal-aortic-aneurysm
#9
T Joseph Watson, W Kurtis Childers, Lindsey Haga, John Calaitges
We present the case of a 64-year-old male who presented to the emergency department with bilateral limb ischemia and paralysis for approximately 1 hour. Computed tomographic angiography demonstrated occlusion of the infrarenal aorta beginning just above the patient's known abdominal aortic aneurysm (AAA) and extending into both common iliac arteries. He was emergently treated via open repair of the AAA with a Gore-Tex tube graft, bilateral common iliac thrombectomies, and bilateral lower extremity four-compartment fasciotomies...
June 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/29674495/platelet-munc13-4-regulates-hemostasis-thrombosis-and-airway-inflammation
#10
Eduardo I Cardenas, Keegan Breaux, Qi Da, Jose R Flores, Marco A Ramos, Michael J Tuvim, Alan R Burns, Rolando E Rumbaut, Roberto Adachi
Platelet degranulation is crucial for hemostasis and may participate in inflammation. Exocytosis in platelets is mediated by SNARE proteins and should be controlled by Munc13 proteins. We found that platelets express Munc13-2 and -4. We assessed platelet granule exocytosis in Munc13-2 and -4 global and conditional KO mice, and observed that deletion of Munc13-4 ablates dense granule release and indirectly impairs alpha granule exocytosis. We found no exocytic role for Munc13-2 in platelets, not even in the absence of Munc13-4...
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29673627/transient-monocular-blindness-vascular-causes-and-differential-diagnoses
#11
REVIEW
S Bidot, D Biotti
Transient monocular blindness is an acute episode of ischemic origin in which one eye has profound visual loss, followed by full recovery within one hour. Transient monocular blindness most often occurs in the setting of retinal ischemia secondary to carotid embolism, but other mechanisms have been reported, including thrombosis (most often in the setting of giant cell arteritis), hemodynamic disorders (secondary to severe carotid stenosis), or vasospasm. Transient monocular blindness is considered a transient ischemic attack originating in the carotid arteries, and must be managed the same as transient ischemic attack involving the brain, in order to prevent a subsequent stroke...
April 16, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29672756/reduced-plasma-fibrin-clot-permeability-is-associated-with-recurrent-thromboembolic-events-in-patients-with-antiphospholipid-syndrome
#12
Magdalena Celinska-Löwenhoff, Michal Zabczyk, Teresa Iwaniec, Krzysztof Plens, Jacek Musial, Anetta Undas
Objectives: APS is associated with arterial and venous thrombosis. The unfavourable fibrin clot phenotype, including formation of dense and poorly lysable clots, has been reported in thrombotic APS. We investigated whether abnormal plasma clot properties are predictive of recurrent thromboembolism in APS. Methods: We followed 126 consecutive patients with thrombotic APS and 105 control subjects, without APS, matched for thrombotic events. Plasma fibrin clot permeability (Ks), turbidity measurements and clot lysis time were evaluated ⩾5 months after a thrombotic event...
April 17, 2018: Rheumatology
https://www.readbyqxmd.com/read/29672304/the-role-of-doppler-ultrassonography-in-significant-and-borderline-stenosis-definition
#13
Ana Castro, Carla Moreira, Paulo Almeida, Norton de Matos, Luís Loureiro, Gabriela Teixeira, Duarte Rego, Sérgio Teixeira, Joaquim Pinheiro, Telmo Carvalho, Isabel Fonseca, José Queirós
BACKGROUND: The definition of significant stenosis (SS) remains controversial. METHODS: We retrospectively reviewed 1,040 consultations. SS was defined in the presence of clinical and echo-Doppler (DDU) criteria: Qa <500 mL/min or Qa decrease >25%; RI >0.7 in the feeding artery or absolute minimal luminal stenosis diameter <2.0 mm. Stenosis without any additional criteria were considered borderline stenosis (BS). RESULTS: Two hundred twenty-one arteriovenous fistulas (AVFs) were included: 58...
April 19, 2018: Blood Purification
https://www.readbyqxmd.com/read/29672288/comparison-of-the-predictive-roles-of-risk-scores-of-in-hospital-major-adverse-cardiovascular-events-in-patients-with-non-st-elevation-myocardial-infarction-undergoing-percutaneous-coronary-intervention
#14
Erdal Akturk, Lutfu Askin, M Hakan Tasolar, Serdar Turkmen, Hakan Kaya
OBJECTIVE: We evaluated the relationship between various risk scores (SYNTAX score (SS), SYNTAX score-II (SS-II), thrombolysis in myocardial infarction (TIMI) risk scores and Global Registry of Acute Coronary Events (GRACE) risk scores) and major adverse cardiovascular events (MACE) in non-ST-elevation myocardial infarction (NSTEMI) patients undergoing percutaneous coronary intervention (PCI). SUBJECTS AND METHODS: The study population were selected from among 589 patients who underwent coronary angiography with a diagnosis of NSTEMI...
April 19, 2018: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/29672182/oral-anticoagulant-use-in-cardiovascular-disorders-a-perspective-on-present-and-potential-indications-for-rivaroxaban
#15
A John Camm, Keith A A Fox
BACKGROUND: Four nonvitamin K antagonist oral anticoagulants (NOACs) have been approved for use in various cardiovascular indications. The direct thrombin inhibitor dabigatran and the direct factor Xa inhibitors apixaban, edoxaban, and rivaroxaban are now increasingly used in clinical practice. For some of these agents, available data from real-world studies support the efficacy and safety data in phase III clinical trials. OBJECTIVES: This review aims to summarize the current status of trials and observational studies of oral anticoagulant use over the spectrum of cardiovascular disorders (excluding venous thrombosis), provide a reference source beyond stroke prevention for atrial fibrillation (AF) and examine the potential for novel applications in the cardiovascular field...
April 19, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29671011/-rectal-bleeding-in-a-60-year-old-woman-under-anticoagulation-and-platelet-aggregation-inhibition
#16
J Pohlan, N Willamowski, C Jürgensen, E Zimmermann, M Möckel
CASE REPORT: We report on a woman with lower gastrointestinal bleeding under effective oral anticoagulation with both phenprocoumon and apixaban (with intention to switch to the latter) as well as the antiplatelet agent acetylsalicylic acid for aortic bifurcation kissing stents after stent thrombosis. Our patient presented with weakness and rectal bleeding. Upon examination, she looked anemic and had sinus tachycardia (104 beats per minute). The digital rectal examination revealed bright red blood mixed with clots...
April 18, 2018: Der Internist
https://www.readbyqxmd.com/read/29670778/multiple-arterial-thrombosis-related-with-cantharidin-ingestion
#17
Zehra Narli Ozdemir, Ugur Sahin, Sinem Civriz Bozdag, Osman Ilhan
Inherited and/or acquired thrombophilic defects can result in venous or arterial thrombosis. This case report describes arterial thrombotic episodes triggered by the ingestion of an aphrodisiac remedy containing cantharidin in a 46-year-old female patient later discovered to be heterozygous for prothrombin G20210A mutation and seropositive for anti- β 2 glycoprotein-I (anti- β 2-GPI) antibodies of IgA isotype.
2018: Case Reports in Hematology
https://www.readbyqxmd.com/read/29670076/cathelicidins-prime-platelets-to-mediate-arterial-thrombosis-and-tissue-inflammation
#18
Joachim Pircher, Thomas Czermak, Andreas Ehrlich, Clemens Eberle, Erik Gaitzsch, Andreas Margraf, Jochen Grommes, Prakash Saha, Anna Titova, Hellen Ishikawa-Ankerhold, Konstantin Stark, Tobias Petzold, Thomas Stocker, Ludwig T Weckbach, Julia Novotny, Markus Sperandio, Bernhard Nieswandt, Alberto Smith, Hanna Mannell, Barbara Walzog, David Horst, Oliver Soehnlein, Steffen Massberg, Christian Schulz
Leukocyte-released antimicrobial peptides contribute to pathogen elimination and activation of the immune system. Their role in thrombosis is incompletely understood. Here we show that the cathelicidin LL-37 is abundant in thrombi from patients with acute myocardial infarction. Its mouse homologue, CRAMP, is present in mouse arterial thrombi following vascular injury, and derives mainly from circulating neutrophils. Absence of hematopoietic CRAMP in bone marrow chimeric mice reduces platelet recruitment and thrombus formation...
April 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29669399/the-impact-of-systemic-lupus-erythematosus-on-the-clinical-phenotype-of-antiphospholipid-antibody-positive-patients-results-from-antiphospholipid-syndrome-alliance-for-clinical-trials-and-international-networking-aps-action-clinical-database-and-repository
#19
Ozan Unlu, Doruk Erkan, Medha Barbhaiya, Danieli Andrade, Iana Nascimento, Renata Rosa, Alessandra Banzato, Vittorio Pengo, Amaia Ugarte, Maria Gerosa, Lanlan Ji, Maria Efthymiou, D Ware Branch, Guilherme Raires de Jesus, Angela Tincani, H Michael Belmont, Paul R Fortin, Michelle Petri, Esther Rodriguez, Guillermo J Pons-Estel, Jason S Knight, Tatsuya Atsumi, Rohan Willis, Stephane Zuily, Maria G Tektonidou
OBJECTIVE: Although systemic lupus erythematosus (SLE) is the most common autoimmune disease associated with antiphospholipid antibodies (aPL), limited data exist on the impact of SLE on the clinical phenotype of aPL-positive patients. The primary objective was to compare the clinical, laboratory, and treatment characteristics of aPL-positive patients with or without SLE. METHODS: A secure web-based data capture system stores patient demographics, and aPL-related clinical and laboratory characteristics...
April 18, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29668568/transjugular-intrahepatic-portosystemic-shunt-insertion-for-the-management-of-portal-hypertension-in-children
#20
Lauren Johansen, Patrick McKiernan, Khalid Sharif, Simon McGuirk
OBJECTIVES: To describe our 20-year experience with transjugular intrahepatic portosystemic shunt (TIPSS) procedures for children with resistant portal hypertension (PHTN). METHODS: Retrospective review of all children that had a TIPSS performed at Birmingham Children's Hospital from 1 January 1995 - 1 January 2015. RESULTS: 40 children underwent 42 attempted TIPSS for resistant PHTN with recurrent variceal bleeding (n = 35), refractory ascites (n = 4), and hypersplenism (n = 1)...
April 17, 2018: Journal of Pediatric Gastroenterology and Nutrition
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