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Coronary artery stent

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https://www.readbyqxmd.com/read/28647315/safety-and-efficacy-of-new-biodegradable-polymer-based-sirolimus-eluting-stents-in-a-preclinical-model
#1
Armando Pérez de Prado, Claudia Pérez Martínez, Carlos Cuellas Ramón, Marta Regueiro Purriños, María López Benito, José Manuel Gonzalo Orden, José Antonio Rodríguez Altónaga, Rodrigo Estévez Loureiro, Tomás Benito González, David Viñuela Baragaño, María Molina Crisol, Marc Amorós Aguilar, Isabel Pérez Serranos, Arnau Vidal Parreu, Ana Benavides Montegordo, Luis Duocastella Codina, Felipe Fernández Vázquez
INTRODUCTION AND OBJECTIVES: New drug-eluting stents (DES) designed to overcome the limitations of existing devices should initially be tested in preclinical studies. Our objective was to analyze the safety and efficacy of new biodegradable polymer-based DES compared with bare-metal stents (BMS) and commercially available DES in a model of normal porcine coronary arteries. METHODS: We randomly implanted 101 stents (BMS and biodegradable polymer-based sirolimus-eluting stents: 3 test stent iterations [BD1, BD2, and BD3], Orsiro, Biomime and Biomatrix) in the coronary arteries of 34 domestic pigs...
June 21, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28640875/percutaneous-coronary-intervention-in-left-main-coronary-artery-disease-with-or-without-intravascular-ultrasound-a-meta-analysis
#2
Yicong Ye, Ming Yang, Shuyang Zhang, Yong Zeng
This meta-analysis compared IVUS-guided with angiography-guided PCI to determine the effect of IVUS on the mortality in patients with LM CAD. Current guidelines recommend intravascular ultrasound (IVUS)-guided percutaneous coronary intervention (PCI) in patients with left main coronary artery disease (LM CAD; Class IIa, level of evidence B). A systematic search of the MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases was conducted to identify randomized or non-randomized studies comparing IVUS-guided PCI with angiography-guided PCI in LM CAD...
2017: PloS One
https://www.readbyqxmd.com/read/28640320/molecular-signature-of-coronary-stent-thrombosis-oxidative-stress-and-innate-immunity-cells
#3
Judit Cubedo, Ana Blasco, Teresa Padro, Ilaria Ramaiola, Oriol Juan-Babot, Javier Goicolea, José Antonio Fernández-Díaz, Juan Francisco Oteo, Lina Badimon
The clinical impact of in-stent thrombosis is high because it is associated with high mortality and 20 % of the patients suffer a recurrent event within the two following years. The aim of this study was to characterise the morphologic and proteomic profile of in-stent thrombi (IST) in comparison to thrombi developed on native coronary arteries (CT) to identify a differential molecular signature. The study included 45 patients with ST-elevation-myocardial-infarction (STEMI) treated by primary-percutaneous-intervention and thrombus aspiration: 21 had IST and 24 had CT...
June 22, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28639098/a-head-to-head-comparison-of-xinsorb-bioresorbable-sirolimus-eluting-scaffold-versus-metallic-sirolimus-eluting-stent-180-days-follow-up-in-a-porcine-model
#4
Li Shen, Yizhe Wu, Lei Ge, Yaojun Zhang, Qibing Wang, Juying Qian, Zhifen Qiu, Junbo Ge
We aimed to investigate the safety and efficacy of XINSORB bioresorbable sirolimus-eluting scaffold in porcine model. XINSORB scaffolds and metallic Firebird2™ stents were randomly implanted into minipigs' coronary arteries. Angiography, optical coherent tomography (OCT) and histopathological analyses were performed at post-procedure and 14-, 28-, 90-, 180-day follow-up. Thirty-two minipigs were enrolled. Eight XINSORB scaffolds and 8 Firebird2 stents were examined at each time point. Quantitative coronary angiography showed that in-scaffold late luminal loss (LLL) of XINSORB scaffold was 0...
June 21, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28637375/anticoagulant-therapy-for-recurrent-in-stent-thrombosis-following-carotid-artery-stenting-a-case-report
#5
Akinori Miyakoshi, Hiroki Toda, Makoto Hayase, Takeshi Kawauchi, Yuki Oichi, Etsuko Hattori
We report a case in which strict anticoagulant therapy management was useful for a recurrent in-stent thrombosis after carotid artery stenting (CAS). An 84-year-old man presented with cognitive decline that progressed rapidly over two months. Head magnetic resonance imaging showed an acute-stage infarct occurring frequently in the right cerebral hemisphere, and he underwent hospitalization and treatment. On neck magnetic resonance angiography (MRA), severe stenosis was found at the origin of the right internal carotid artery...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28637016/socs1-gene-promoter-methylation-status-is-associated-with-in-stent-restenosis-after-percutaneous-coronary-intervention
#6
Liang Zhou, Ningfu Wang, Hong Li, Guoxin Tong, Jianmin Yang, Lei Lai, Hao Pan, Xianhua Ye, Jinyu Huang
BACKGROUND: Inflammation is involved in the development of In-stent restenosis (ISR) after percutaneous coronary intervention. We aimed to investigate the association between of suppressor of cytokine signaling-1 (SOCS1), a major negative regulator for inflammation, and the occurrence of ISR in Chinese patients. METHODS: We enrolled patients with coronary artery disease who underwent PCI with stenting. PCI procedures were performed successfully and a follow-up angiography was repeated 1 year later to determine ISR presence...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636165/a-feasibility-and-safety-study-of-intracoronary-hemodilution-during-primary-coronary-angioplasty-in-order-to-reduce-reperfusion-injury-in-myocardial-infarction
#7
Michael McGarvey, Omar Ali, M Bilal Iqbal, Charles Ilsley, Joyce Wong, Carlo Di Mario, Simon Redwood, Tiffany Patterson, Dudley J Pennell, Paula Rogers, Miles Dalby
OBJECTIVES: We designed a pilot study to evaluate safety and feasibility of an inexpensive and simple approach to intracoronary hemodilution during primary angioplasty (PPCI) to reduce reperfusion injury. INTRODUCTION: Early revascularization in acute myocardial infarction decreases infarct size and improves outcomes. However, abrupt restoration of coronary flow results in myocardial reperfusion injury and increased final infarct size. Dilution of coronary blood during revascularization may help reduce this damage...
June 21, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28631502/impact-of-acute-infarct-related-artery-patency-before-percutaneous-coronary-intervention-on-30-day-outcomes-in-patients-with-st-segment-elevation-myocardial-infarction-treated-with-primary-percutaneous-coronary-intervention-in-the-euromax-trial
#8
Tomasz Rakowski, Dariusz Dudek, Arnoud van 't Hof, Jurrien Ten Berg, Louis Soulat, Uwe Zeymer, Frederic Lapostolle, Prodromos Anthopoulos, Debra Bernstein, Efthymios N Deliargyris, Philippe Gabriel Steg
AIMS: Early infarct-related artery patency has been associated with improved outcomes in patients with ST-segment elevation myocardial infarction treated with primary percutaneous coronary intervention. However, it is unknown whether this relationship persists in contemporary practice with pre-hospital initiation of treatment, use of novel P2Y12 inhibitors and frequent use of drug-eluting stents. The purpose of the study was to determine the impact of early infarct-related artery patency on outcomes in the contemporary EUROMAX trial...
January 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28631258/long-term-effects-of-rotational-atherectomy-in-patients-with-heavy-calcified-coronary-artery-lesions-a-single-centre-experience
#9
Stanisław Bartuś, Rafał Januszek, Jacek Legutko, Łukasz Rzeszutko, Artur Dziewierz, Dariusz Dudek
BACKGROUND: Rotational atherectomy (RA) plays a significant role in contemporary percutaneous coronary interventions (PCI), especially in the era of population aging and expansion of PCI indications. AIM: The aim of the current study was to evaluate the rate of periprocedural complications, the long-term effectiveness of RA, and potential factors influencing the incidence of major adverse cardiac events (MACE) and major cardiac as well as cerebrovascular events (MACCE) after RA...
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28629432/imaging-of-%C3%AE-v%C3%AE-3-integrin-expression-in-experimental-myocardial-ischemia-with-68-ga-nodaga-rgd-positron-emission-tomography
#10
Maria Grönman, Miikka Tarkia, Tuomas Kiviniemi, Paavo Halonen, Antti Kuivanen, Timo Savunen, Tuula Tolvanen, Jarmo Teuho, Meeri Käkelä, Olli Metsälä, Mikko Pietilä, Pekka Saukko, Seppo Ylä-Herttuala, Juhani Knuuti, Anne Roivainen, Antti Saraste
BACKGROUND: Radiolabeled RGD peptides detect αvβ3 integrin expression associated with angiogenesis and extracellular matrix remodeling after myocardial infarction. We studied whether cardiac positron emission tomography (PET) with [(68)Ga]NODAGA-RGD detects increased αvβ3 integrin expression after induction of flow-limiting coronary stenosis in pigs, and whether αvβ3 integrin is expressed in viable ischemic or injured myocardium. METHODS: We studied 8 Finnish landrace pigs 13 ± 4 days after percutaneous implantation of a bottleneck stent in the proximal left anterior descending coronary artery...
June 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28629303/dual-antiplatelet-therapy-beyond-one-year-in-patients-after-stent-placement-a-review
#11
Jacob D Sumner, Brianna Zinser, Andrew Smith
PURPOSE: To review the evidence on the safety and efficacy of the continued use of dual antiplatelet therapy (DAPT) beyond 12 months after stent placement in patients following an acute coronary syndrome (ACS) event. SUMMARY: Recently, the American College of Cardiology (ACC) and the American Heart Association (AHA) released a focused update on the duration of DAPT in patients with coronary artery disease (CAD). The update makes new recommendations about the duration of DAPT in light of recently performed studies investigating this topic...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28626545/case-of-acute-st-segment-elevation-myocardial-infarction-in-infective-endocarditis-management-with-intra-coronary-stenting
#12
Ghulam Murtaza, Zia Ur Rahman, Puja Sitwala, Vatsal Ladia, Bhavesh Barad, Kais Albalbissi, Timir K Paul, Vijay Ramu
Embolic events from infective endocarditis can cause acute coronary syndrome. Mortality rate is high and optimal management might be different from those chosen in setting of classic atherosclerotic coronary artery disease. We present a case of 56-year-old male who had received 5 weeks of antibiotics for aortic valve endocarditis and developed acute ST segment elevation myocardial infarction in hospital settings. Interestingly, patient had recent left heart catheterization that was normal. This was recognized as embolic event from sterile vegetation...
June 7, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28625402/comparison-between-catheter-based-delivery-of-paclitaxel-after-bare-metal-stenting-and-drug-eluting-stents-in-coronary-artery-disease-patients-at-high-risk-for-in-stent-restenosis
#13
Mostafa El-Mokadem, Mohamed El-Ramly, Amr Hassan, Hesham Boshra, Amir AbdelWahab
BACKGROUND: Drug eluting stents reduce the risk of in-stent restenosis but delay healing of the vascular wall. Recent data on late and very late stent thrombosis after drug-eluting stent (DES) implantation have raised concerns about the long-term safety. High lipophilicity of paclitaxel promotes rapid cellular uptake and prolongs its action. This makes paclitaxel a very promising candidate for local drug therapy intended to inhibit the proliferative and migratory processes involved in restenosis following PCI...
May 31, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28624816/circulating-micrornas-as-potential-biomarkers-for-coronary-plaque-rupture
#14
Sufang Li, Chongyou Lee, Junxian Song, Changlin Lu, Jun Liu, Yuxia Cui, Huizhu Liang, Chengfu Cao, Feng Zhang, Hong Chen
Coronary plaque rupture is the most common cause of acute coronary syndrome. However, the timely biomarker-based diagnosis of plaque rupture remains a major unmet clinical challenge. Balloon dilatation and stent implantation during percutaneous coronary intervention (PCI) could cause plaque injury and rupture. Here we aimed to assess the possibility of circulating microRNAs (miRNAs) as biomarkers of acute coronary plaque rupture by virtue of the natural model of PCI-induced plaque rupture. Stable coronary artery disease patients underwent PCI with single stent implantation were recruited and a three-phase approach was conducted in the present study: (i) profiling of plasma miRNAs in a group of patients before (0 h) and after balloon dilatation for 1 h (1 h vs...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624384/a-giant-coronary-artery-aneurysm-treated-using-multiple-overlapping-covered-stents
#15
Alberto F Cereda, Gianluca Tiberti, Isidoro G Pera, Edoardo Cantù, Luca A Ferri, Stefano Savonitto, Luigi Piatti
No abstract text is available yet for this article.
June 7, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28623669/outcomes-after-successful-percutaneous-coronary-intervention-of-calcified-lesions-using-rotational-atherectomy-cutting-balloon-angioplasty-or-balloon-only-angioplasty-before-drug-eluting-stent-implantation
#16
Björn Redfors, Akiko Maehara, Bernhard Witzenbichler, Giora Weisz, Thomas D Stuckey, Timothy D Henry, Thomas McAndrew, Roxana Mehran, Ajay J Kirtane, Gregg W Stone, Philippe Généreux
OBJECTIVES: To report adverse event rates after rotational atherectomy (RA) with contemporary drug-eluting stent (DES) implantation and compare RA to cutting balloon (CB) angioplasty and balloon-only angioplasty (BA) in the all-comers ADAPT-DES trial. BACKGROUND: Percutaneous coronary intervention (PCI) of calcified lesions is increasingly common and is associated with a high risk of adverse events. RA can ablate calcified plaque and facilitate stent delivery; however, in conjunction with first-generation DES, RA was not superior to BA alone in regard to adverse events...
June 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28618851/crush-deformation-of-a-balloon-expandable-stent-implanted-in-an-infrainguinal-bypass-graft
#17
Nida Ahmed, Rym El-Khoury, Moustafa N Sabri, John V White, Chad E Jacobs, Lewis B Schwartz
A 59-year-old man with critical claudication underwent left femoro-anterior bypass grafting, which was uneventful. The graft was tunneled medially across the knee, then anterior to the tibia. His symptoms recurred 1 year later and he was found to have critical stenosis of the vein graft just proximal to the anterior tibial arterial anastomosis. This was treated with scaffolded balloon angioplasty and implantation of a coronary, zotarolimus-eluting balloon-expandable stent, which was also uneventful. However, his claudication again recurred 1 year later...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28614245/wellens-syndrome-in-hiv-infected-patients-two-case-reports
#18
Bowei Tan, Carlos Morales-Mangual, Dan Zhao, Abdullah Khan, Hal Chadow
BACKGROUND: Wellens syndrome is a pattern of electrocardiographic (ECG) changes in the context of unstable angina characterized with deep inverted T-waves or biphasic T-waves in the precordial leads. These specific ECG changes are highly suggestive of stenosis in the left anterior descending artery (LAD), which can result in acute myocardial infarction, left ventricular dysfunction, or death. Human immunodeficiency virus (HIV) infection is known as an independent risk factor for the cardiovascular disease...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28612281/perioperative-management-of-antiplatelet-treatment-in-patients-undergoing-isolated-coronary-artery-bypass-grafting-in-dutch-cardiothoracic-centres
#19
P W A Janssen, D M F Claassens, L M Willemsen, T O Bergmeijer, P Klein, J M Ten Berg
BACKGROUND: International guidelines do not provide uniform recommendations regarding the use of antiplatelet treatment in the perioperative period in patients undergoing coronary artery bypass grafting (CABG). METHODS: A questionnaire was sent to all 16 cardiothoracic centres in the Netherlands to determine which antiplatelet treatment is used in the perioperative setting. Furthermore, a single-centre prospective observational cohort study was performed which included all patients undergoing isolated CABG in July 2014...
June 13, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28612280/mid-term-and-long-term-safety-and-efficacy-of-bioresorbable-vascular-scaffolds-versus-metallic-everolimus-eluting-stents-in-coronary-artery-disease-a%C3%A2-weighted-meta-analysis-of-seven-randomised-controlled-trials-including-5577-patients
#20
J Elias, I M van Dongen, R P Kraak, R Y G Tijssen, B E P M Claessen, J G P Tijssen, R J de Winter, J J Piek, J J Wykrzykowska, J P S Henriques
AIMS: Mid- and long-term safety and efficacy of the Absorb bioresorbable vascular scaffold (BVS) have been studied in randomised trials; however, most were not individually powered for clinical endpoints. We performed a weighted meta-analysis comparing mid- and long-term outcomes in patients treated with the BVS compared with the Xience metallic stent. METHODS AND RESULTS: Randomised trials comparing the BVS and Xience were identified by searching MEDLINE, EMBASE and conference abstracts...
June 13, 2017: Netherlands Heart Journal
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