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Arterial thrombosis

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https://www.readbyqxmd.com/read/29222525/conserved-gene-microsynteny-unveils-functional-interaction-between-protein-disulfide-isomerase-and-rho-guanine-dissociation-inhibitor-families
#1
Ana I S Moretti, Jessyca C Pavanelli, Patrícia Nolasco, Matthias S Leisegang, Leonardo Y Tanaka, Carolina G Fernandes, João Wosniak, Daniela Kajihara, Matheus H Dias, Denise C Fernandes, Hanjoong Jo, Ngoc-Vinh Tran, Ingo Ebersberger, Ralf P Brandes, Diego Bonatto, Francisco R M Laurindo
Protein disulfide isomerases (PDIs) support endoplasmic reticulum redox protein folding and cell-surface thiol-redox control of thrombosis and vascular remodeling. The family prototype PDIA1 regulates NADPH oxidase signaling and cytoskeleton organization, however the related underlying mechanisms are unclear. Here we show that genes encoding human PDIA1 and its two paralogs PDIA8 and PDIA2 are each flanked by genes encoding Rho guanine-dissociation inhibitors (GDI), known regulators of RhoGTPases/cytoskeleton...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222246/incidental-venous-thromboembolism-is-anticoagulation-indicated
#2
REVIEW
Marcello Di Nisio, Marc Carrier
Patients with cancer have a high risk of venous thromboembolism (VTE) and about one-half of these events are incidentally detected. The prognosis of incidental VTE appears to be similar to symptomatic events, with comparably high rates of recurrent VTE in this patient population. In the absence of major contraindications, anticoagulant treatment with low-molecular-weight heparin for 3 to 6 months is generally recommended for incidental proximal deep vein thrombosis as well as for incidental pulmonary embolism that involves multiple subsegmental or more proximal pulmonary arteries...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29219760/direct-visualization-of-microcirculation-impairment-after-acute-subdural-hemorrhage-in-a-novel-animal-model
#3
Huan-Chih Wang, Jui-Chang Tsai, Jing-Er Lee, Sheng-Jean Huang, Abel Po-Hao Huang, Wei-Chou Lin, Sung-Tsang Hsieh, Kuo-Chuan Wang
OBJECTIVE Direct brain compression and secondary injury due to increased intracranial pressure are believed to be the pathognomic causes of a grave outcome in acute subdural hemorrhage (aSDH). However, ischemic damage from aSDH has received limited attention. The authors hypothesized that cerebral microcirculation is altered after aSDH. Direct visualization of microcirculation was conducted in a novel rat model. METHODS A craniectomy was performed on each of the 18 experimental adult Wistar rats, followed by superfusion of autologous arterial blood onto the cortical surface...
December 8, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29217001/long-term-safety-and-efficacy-of-platinum%C3%A2-chromium-everolimus-eluting-stents-in-coronary-artery-disease-5-year-results-from-the-platinum-trial
#4
Christopher R Kelly, Paul S Teirstein, Ian T Meredith, Bruno Farah, Christophe L Dubois, Robert L Feldman, Joseph Dens, Nobuhisa Hagiwara, Abram Rabinowitz, Didier Carrié, Vincent Pompili, Alain Bouchard, Shigeru Saito, Dominic J Allocco, Keith D Dawkins, Gregg W Stone
OBJECTIVES: The authors sought to evaluate the final 5-year safety and effectiveness of the platinum-chromium everolimus-eluting stent (PtCr-EES) in the randomized trial, as well as in 2 single-arm substudies that evaluated PtCr-EES in small vessels (diameter <2.5 mm; n = 94) and long lesions (24 to 34 mm; n = 102). BACKGROUND: In the multicenter, randomized PLATINUM (PLATINUM Clinical Trial to Assess the PROMUS Element Stent System for Treatment of De Novo Coronary Artery Lesions), the PtCr-EES was noninferior to the cobalt-chromium everolimus-eluting stent (CoCr-EES) at 1 year in 1,530 patients undergoing percutaneous coronary intervention...
December 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29216997/the-state-of-the-absorb-bioresorbable%C3%A2-scaffold-consensus-from-an-expert-panel
#5
REVIEW
Sripal Bangalore, Hiram G Bezerra, David G Rizik, Ehrin J Armstrong, Bruce Samuels, Srihari S Naidu, Cindy L Grines, Malcolm T Foster, James W Choi, Barry D Bertolet, Atman P Shah, Rebecca Torguson, Surendra B Avula, John C Wang, James P Zidar, Aziz Maksoud, Arun Kalyanasundaram, Steven J Yakubov, Bassem M Chehab, Anthony J Spaedy, Srini P Potluri, Ronald P Caputo, Ashok Kondur, Robert F Merritt, Amir Kaki, Ramon Quesada, Manish A Parikh, Catalin Toma, Fadi Matar, Joseph DeGregorio, William Nicholson, Wayne Batchelor, Raghava Gollapudi, Ethan Korngold, Riyaz Sumar, George S Chrysant, Jun Li, John B Gordon, Rajesh M Dave, Guilherme F Attizzani, Tom P Stys, Osvaldo S Gigliotti, Bruce E Murphy, Stephen G Ellis, Ron Waksman
Significant progress has been made in the percutaneous coronary intervention technique from the days of balloon angioplasty to modern-day metallic drug-eluting stents (DES). Although metallic stents solve a temporary problem of acute recoil following balloon angioplasty, they leave behind a permanent problem implicated in very late events (in addition to neoatherosclerosis). BRS were developed as a potential solution to this permanent problem, but the promise of these devices has been tempered by clinical trials showing increased risk of safety outcomes, both early and late...
December 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29214713/stent-graft-treatment-for-infra-inguinal-arterial-disease-for-either-instent-restenosis-and-denovo-lesions-associated-with-very-high-rates-of-failure
#6
Maheswara S Golla, Subasit Acharji, Timir K Paul, Praveena Madapathi, Lawrence A Garcia
BACKGROUND: FDA approved the Gore Viabahn (WL Gore, Flagstaff, AZ, USA) stent for both femoro-popliteal arterial denovo and instent restenosis (ISRS) lesions. To date there is little data on Viabahn stent graft outcomes in ISRS arterial disease. METHODS: Between 2007 and 2014 we identified 734 patients who underwent 1573 endovascular interventions in our institution for infra-inguinal revascularization. Among these, 48 patients had 143 Viabahn stents placed. Of these, 26 patients had 94 stents placed for ISRS and 22 patients had 49 stents placed for denovo lesions...
December 7, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29213030/acute-bilateral-ophthalmoplegia-due-to-vertebrobasilar-dolichoectasia-a-report-of-two-cases
#7
Haifa Alabri, Whitfield D Lewis, Sunil Manjila, Ayham M Alkhachroum, Michael A De Georgia
BACKGROUND Vertebrobasilar dolichoectasia (VBD) is a complex progressive arterial disease characterized by dilation, elongation, and tortuosity of the vertebral and basilar arteries, and may be congenital or acquired. VBD may lead to progressive compression of the brainstem, cranial nerve abnormalities, and intracranial hemorrhage, but may also be associated with arterial thrombosis, with ischemic stroke as the most common clinical outcome. CASE REPORT Two cases of VBD are presented, both with acute bilateral ophthalmoplegia and cranial nerve palsies, and vertebrobasilar arterial thrombosis that resulted in ischemic stroke...
December 7, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29211941/impact-of-aberrant-left-hepatic-artery-ligation-on-the-outcome-of-liver-transplantation
#8
Roberto Montalti, Andrea Benedetti Cacciaguerra, Daniele Nicolini, Emad Alì Ahmed, Martina Coletta, Lesley De Pietri, Andrea Risaliti, Roberto Ivan Troisi, Federico Mocchegiani, Marco Vivarelli
BACKGROUND: The preservation of a graft's aberrant left hepatic artery (LHA) during liver transplantation (LT) ensures optimal vascularization of the left liver but can also be considered a risk factor for hepatic artery thrombosis. In contrast, ligation of an aberrant LHA may lead to hepatic ischaemia with the potential risk of graft dysfunction and biliary complications. The aim of this study was to prospectively analyse the impact on the surgical strategy for LT of 5 tests performed to establish whether an aberrant LHA was an accessory or a replaced artery, thus leading to the design of a decisional algorithm...
December 6, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29210019/pathology-of-stent-implantation-in-internal-mammary-artery
#9
Hiroyoshi Mori, Ryan Braumann, Sho Torii, Hiroyuki Jinnouchi, Emanuel Harari, Robert Kutys, Maria Romero, Renu Virmani, Aloke Finn
The internal mammary artery (IMA) is the most durable conduit for bypassing the left anterior descending (LAD) coronary artery in patients undergoing coronary artery bypass graft surgery (CABG). However, little is known about how the IMA reacts histologically to stent implantation. From CVPath stent registry (1048 lesions, 614 cases), we obtained 4 stent lesions (2 bare metal stents, 2 drug-eluting stents) involving IMA grafts. The mean age of our patients was 63 years and the duration of stent implantation in the IMA ranged from 5 days to 5 years...
December 5, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/29208494/bleeding-in-advanced-ckd-patients-on-antithrombotic-medication-a-critical-appraisal
#10
Alexandru Burlacu, Simonetta Genovesi, David Goldsmith, Patrick Rossignol, Alberto Ortiz, Philip A Kalra, Jolanta Małyszko, Maciej Banach, Mehmet Kanbay, Adrian Covic
Patients with advanced chronic kidney disease (CKD) are at an increased risk of bleeding, especially in the context of the complex therapeutic schemes of coronary artery disease (CAD) (from stable angina to acute coronary syndromes), atrial fibrillation or venous thromboembolism. The bleeding issue increases morbidity and mortality, a serious problem in daily medical practice. However, these patients are largely excluded from major randomized clinical trials, which results in the lack of medical evidence-based foundation for specific recommendations regarding antithrombotic treatment in a high bleeding risk setting...
December 2, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29207764/spontaneous-renal-artery-thrombosis-successfully-intervened-with-drug-eluting-stent-a-primary-renal-artery-angioplasty
#11
Basant Kumar, Savita Kumari
Renal artery thrombosis is a rare medical emergency and needs to be diagnosed early and treated urgently to prevent irreversible renal injury. We report a case of 35-year-old male, who presented with the total thrombotic occlusion of right renal artery and was managed with percutaneous transluminal angioplasty with a drug eluting stent.
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29206177/new-therapeutic-agent-against-arterial-thrombosis-an-iridium-iii-derived-organometallic-compound
#12
Chih-Wei Hsia, Marappan Velusamy, Jeng-Ting Tsao, Chih-Hsuan Hsia, Duen-Suey Chou, Thanasekaran Jayakumar, Lin-Wen Lee, Jiun-Yi Li, Joen-Rong Sheu
Platelet activation plays a major role in cardio and cerebrovascular diseases, and cancer progression. Disruption of platelet activation represents an attractive therapeutic target for reducing the bidirectional cross talk between platelets and tumor cells. Platinum (Pt) compounds have been used for treating cancer. Hence, replacing Pt with iridium (Ir) is considered a potential alternative. We recently developed an Ir(III)-derived complex, [Ir(Cp*)1-(2-pyridyl)-3-(2-hydroxyphenyl)imidazo[1,5-a]pyridine Cl]BF₄ (Ir-11), which exhibited strong antiplatelet activity; hence, we assessed the therapeutic potential of Ir-11 against arterial thrombosis...
December 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29205938/peptide-functionalized-polyurethane-coatings-prepared-via-grafting-to-strategy-to-selectively-promote-endothelialization
#13
Xin Ding, Willy Chin, Chuen Neng Lee, James L Hedrick, Yi Yan Yang
Endothelialization, formation of endothelial cells (ECs) layer on cardiovascular implant surface, is considered an ideal approach to prevent restenosis (renarrowing of blood vessel mainly due to the accumulation of proliferated vascular smooth muscle cells, SMCs) and thrombosis. In this study, the possibility of using polyurethane (PU) as a coating platform for functionalization with peptide to enhance endothelialization on implants is explored. PUs are synthesized through metal-free organocatalytic polymerization followed by chemical conjugation with an EC-specific REDV peptide through thiol-ene reaction...
December 4, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29205487/the-impact-of-unfractionated-heparin-or-bivalirudin-on-patients-with-stable-coronary-artery-disease-undergoing-percutaneous-coronary-intervention
#14
Fabio V Lima, Luis Gruberg, Usman Aslam, Melissa Ramgadoo, Kydanis Clase, Alessandra Trevisan, Allen Jeremias
OBJECTIVES: To compare bleeding and clinical events of patients with stable angina or silent ischemia undergoing percutaneous coronary intervention (PCI) treated with unfractionated heparin (UFH) or bivalirudin. BACKGROUND: Few direct comparisons between UFH monotherapy versus bivalirudin exist for patients with stable ischemic heart disease undergoing PCI. METHODS: A prospective, investigator-initiated, single-center, single-blinded, randomized trial of UFH versus bivalirudin was conducted...
December 4, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29205015/treatment-options-for-acute-mesenteric-ischemia-have-improved
#15
Jussi M Kärkkäinen, Hannu Manninen, Hannu Paajanen
Acute mesenteric ischemia resulting from mesenteric arterial thrombosis is a life-threatening cardiovascular complication with symptoms ranging from sudden-onset abdominal pain to vague symptoms of several days' duration. Although contrast-enhanced computed tomography is an excellent diagnostic tool, detection of the disease before the development of permanent intestinal injury is still difficult. Endovascular treatment is usually successful in restoring intestinal blood flow acutely. Chronic mesenteric ischemia requires urgent detection and therapy in order to prevent irreversible intestinal ischemia...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29204246/constricted-microfluidic-devices-to-study-the-effects-of-transient-high-shear-exposure-on-platelets
#16
Nesreen Z Alsmadi, Sarah J Shapiro, Christopher S Lewis, Vinit M Sheth, Trevor A Snyder, David W Schmidtke
Due to the critical roles that platelets play in thrombosis during many biological and pathological events, altered platelet function may be a key contributor to altered hemostasis, leading to both thrombotic and hemorrhagic complications. Platelet adhesion at arterial shear rates occurs through binding to von Willebrand Factor via the glycoprotein (GP) GPIb receptor. GPIb binding can induce platelet activation distinguishable by P-selectin (CD62P) surface expression and αIIbβ3 activation, resulting in platelet aggregation and formation of the primary hemostatic plug to stop bleeding...
November 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/29202352/intrahepatic-portal-vein-thrombosis-due-to-postoperative-biliary-obstruction-successfully-treated-by-a-partial-thrombectomy-combined-with-thrombolytic-drug-therapy
#17
Naoya Imamura, Atsushi Nanashima, Yuki Tsuchimochi, Takeomi Hamada, Koichi Yano, Masahide Hiyoshi, Yoshiro Fujii, Kunihide Nakamura
INTRODUCTION: This case report aims to inform pancreatic surgeons about our perioperative management of intrahepatic portal vein thrombosis caused by an obstruction of hepaticojejunostomy (HJ) after pancreaticoduodenectomy (PD). CASE PRESENTATION: A 65-year-old woman was diagnosed with pancreas head carcinoma involving the superior mesenteric vein (SMV). Pancreaticoduodenectomy combined with SMV resection was followed by HJ. Twisting or narrowing was not evident during anastomosis...
November 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29201224/expression-of-nf-e2-related-factor-2-in-a-rat-dural-arteriovenous-fistula-model
#18
Limin Dou, Wenhua Yu
Intracranial dural arteriovenous fistulas (DAVFs) are complex intracranial vascular malformations that may lead to hemorrhage. Although the precise mechanisms by which DAVFs occur remain unknown, dural angiogenesis may be a vital factor in its pathogenesis. Nuclear factor erythroid 2-related factor 2 (Nrf2) significantly influences angiogenesis; however, the association between DAVF and Nrf2 remains unclear. Therefore, the present study investigated whether DAVF alters the expression of Nrf2 in an experimental animal model of DAVF...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29200154/rhinocerebral-mucormycosis-with-temporal-artery-thrombosis-in-an-adolescent-following-hla-haploidentical-stem-cell-transplantation
#19
Yuta Kawahara, Shoya Wada, Hitomi Nijima, Tomomi Hayase, Rieko Furukawa, Kentaro Ashizawa, Akira Morimoto
Rhinocerebral mucormycosis (RCM) can lead to internal carotid artery thrombosis. Here, we report the first case of RCM with temporal artery thrombosis following HLA-haploidentical stem cell transplantation in an adolescent presenting with low-grade fever, right mandibular pain, and right jaw claudication. This case suggests that RCM can cause temporal artery thrombosis and should be considered as a differential diagnosis in severely immunocompromised patients with maxillary sinusitis presenting with jaw claudication...
December 1, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29200023/large-arteries-dysfunction-in-primary-antiphospholipid-syndrome
#20
Gilmar S Osmundo, Jozélio Freire Carvalho, Luiz A Bortolotto, Vilma S T Viana, Eloisa Bonfá
OBJECTIVE: The aim of this study was to assess the arterial distensibility of large vessels and changes in microvasculature in primary antiphospholipid syndrome. METHODS: Twenty-two antiphospholipid syndrome patients and 66 age-, sex-, height-, and blood pressure-matched control subjects were included in the study. Second derivative of the finger photoplethysmogram (SDPTG) has been used as a noninvasive method to evaluate the pulse wave. The b/a and d/a indices, which reflect, respectively, large-vessel and small-vessel properties, were calculated from the SDPTG waveform components...
December 1, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
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