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https://www.readbyqxmd.com/read/29032714/fusion-of-optical-coherence-tomography-and-angiography-for-numerical-simulation-of-hemodynamics-in-bioresorbable-stented-coronary-artery-based-on-patient-specific-model
#1
Chenxi Huang, Yuanhang Zhou, Xiaoxin Mao, Jianhua Tong, Lei Zhang, Fei Chen, Yongtao Hao
Three-dimensional simulations of coronary artery using finite element analysis are considered as effective means to understand the biomechanical properties after the stent was deployed. Bioresorbable vascular scaffolds are new-generation stents used by people. Intravascular optical coherence tomography is an emerging technique for detecting struts. The common 3 D reconstruction methods are using Intravascular Ultrasound (IVUS) or angiographies. However, it loses the details about geometry model. Fusing of optical coherence tomography and angiography to reconstruct the bioresorbable stented coronary artery based on patient-specific mode is an innovative method to reconstruct the high fidelity geometry...
October 16, 2017: Computer Assisted Surgery (Abingdon, England)
https://www.readbyqxmd.com/read/29027096/new-innovations-in-drug-eluting-stents-for-peripheral-arterial-disease
#2
REVIEW
Roi Altit, William A Gray
PURPOSE OF REVIEW: The purpose of this paper was to provide a review of the burden of peripheral arterial disease; to examine older therapies and their limitations; and especially to highlight new treatment innovations as well as the data supporting their use. RECENT FINDINGS: Building on the success of paclitaxel in the prevention of restenosis in the peripheral circulation, the newest generation drug-eluting stent is presented, which combines paclitaxel with a polymer-allowing the drug to be eluted slowly over 12 months...
October 12, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28941481/does-the-new-generation-of-drug-eluting-stents-render-bare-metal-stents-obsolete
#3
REVIEW
Kyle Buchanan, Arie Steinvil, Ron Waksman
The development of bare metal coronary stents revolutionized the treatment of coronary artery disease by reducing rates of acute vessel closure and restenosis associated with balloon angioplasty. However, bare metal stents (BMS) resulted in high rates of restenosis and led to the development of drug-eluting stents (DES). Those first-generation DES were followed by successive generations of DES that included improvements, such as biodegradable and more biocompatible polymers. Despite the superiority of the current DES compared to BMS, a subset of patients still receives BMS...
September 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28894604/new-generation-bioresorbable-scaffold-technologies-an-update-on-novel-devices-and-clinical-results
#4
REVIEW
Damiano Regazzoli, Pier Pasquale Leone, Antonio Colombo, Azeem Latib
Bioresorbable scaffolds (BRS) represent a novel horizon in interventional cardiology and may lead to some potential long-term advantages including the restoration of vasomotion, positive remodeling and a reduced incidence of late and very-late scaffold thrombosis (ScT). This technology, introduced to overcome limitations of current metallic drug-eluting stents (DES), is constantly and rapidly evolving with many companies working on bioresorbable devices. The aim of this review is to present an update on the most promising scaffolds that are under development...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28894596/magmaris-a-new-generation-metallic-sirolimus-eluting-fully-bioresorbable-scaffold-present-status-and-future-perspectives
#5
REVIEW
Claudio Rapetto, Massimo Leoncini
Drug-eluting stents (DES) have reached a high safety and efficacy profile, becoming the best option for percutaneous coronary interventions (PCI) based revascularization. However, despite their optimal performance, a few concerns remain regarding their use, mainly due to permanent caging of the vessels and its consequences, first of all late stent thrombosis (ST). Bioresorbable scaffolds (BRS) aim to overcome these issues. The results achieved in randomized controlled trials (RCT) by the first generation of poly-L-lactic acid (PLLA) based scaffolds were promising at 1 year, but the first long term reports (albeit flawed by non-optimal implantation technique) have been disappointing, showing, for instance, an increased risk of ST and target vessel myocardial infarction (TV-MI)...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28889769/orsiro-cobalt-chromium-sirolimus-eluting-stent-present-and-future-perspectives
#6
Juan F Iglesias, Marco Roffi, Sophie Degrauwe, Gioel Gabrio Secco, Adel Aminian, Stephan Windecker, Thomas Pilgrim
New-generation drug-eluting stents (DES) represent the current standard of care in patients undergoing percutaneous coronary intervention (PCI). Biodegradable polymer DES (BP-DES) were recently developed to overcome current limitations of newer-generation durable polymer DES (DP-DES) attributed to sustained inflammatory responses induced by permanent polymers. The Orsiro DES (Biotronik AG, Bülach, Switzerland) is a novel thin-strut cobalt-chromium sirolimus-eluting stent with biodegradable polymer that features some of the latest developments in DES technology...
September 19, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28851504/ultrathin-bioresorbable-polymer-sirolimus-eluting-stents-versus-thin-durable-polymer-everolimus-eluting-stents-in-patients-undergoing-coronary-revascularisation-bioflow-v-a-randomised-trial
#7
David E Kandzari, Laura Mauri, Jacques J Koolen, Joseph M Massaro, Gheorghe Doros, Hector M Garcia-Garcia, Johan Bennett, Ariel Roguin, Elie G Gharib, Donald E Cutlip, Ron Waksman
BACKGROUND: The development of coronary drug-eluting stents has included use of new metal alloys, changes in stent architecture, and use of bioresorbable polymers. Whether these advancements improve clinical safety and efficacy has not been shown in previous randomised trials. We aimed to examine the clinical outcomes of a bioresorbable polymer sirolimus-eluting stent compared with a durable polymer everolimus-eluting stent in a broad patient population undergoing percutaneous coronary intervention...
August 26, 2017: Lancet
https://www.readbyqxmd.com/read/28844030/state-of-the-art-balloon-catheter-technologies-drug-coated-balloon
#8
Fernando Alfonso, Bruno Scheller
Four decades after its introduction into clinical practice, coronary balloon angioplasty is still used during most coronary interventions. Conventional balloon angioplasty is frequently used to predilate complex or severe lesions and remains of major value to optimise the results of stent implantation. Plain balloon angioplasty is still used alone in some anatomic scenarios where stent implantation is not desirable (very small vessels or diffuse lesions, large resistant thrombus burden, side branches of bifurcations)...
August 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28838471/risk-of-early-adverse-events-after-clopidogrel-discontinuation-in-patients-undergoing-short-term-dual%C3%A2-antiplatelet%C3%A2-therapy-an-individual-participant-data-analysis
#9
Raffaele Piccolo, Fausto Feres, Alexandre Abizaid, Martine Gilard, Marie-Claude Morice, Myeong-Ki Hong, Hyo-Soo Kim, Antonio Colombo, Deepak L Bhatt, Tullio Palmerini, Gregg W Stone, Stephan Windecker, Marco Valgimigli
OBJECTIVES: The study sought to evaluate the presence of a clinically relevant rebound phenomenon after dual antiplatelet therapy (DAPT) discontinuation in randomized trials. BACKGROUND: It is currently unknown whether clopidogrel discontinuation after short-term DAPT is associated with an early hazard of ischemic events. METHODS: The authors performed an individual participant data analysis and aggregate meta-analysis. The primary outcome was major adverse cardiac and cerebrovascular events (MACCE), defined as the composite of cardiac death, myocardial infarction (MI), or stroke...
August 28, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28826683/perioperative-management-of-dual-antiplatelet-therapy-in-patients-with-new-generation-drug-eluting-metallic-stents-and-bioresorbable-vascular-scaffolds-undergoing-elective-noncardiac-surgery
#10
REVIEW
Michael Essandoh, Adam A Dalia, Mazen Albaghdadi, Barry George, Nicoleta Stoicea, Muhammad Shabsigh, Sunil V Rao
Dual-antiplatelet therapy (DAPT) is considered mandatory after new-generation drug-eluting coronary stent implantation to reduce ischemic complications such as stent thrombosis, but the need for DAPT makes the timing of elective surgery difficult. Interrupting DAPT places patients at risk for stent thrombosis, and surgery in the setting of DAPT may lead to bleeding. The 2016 American College of Cardiology/American Heart Association guideline recommends delaying elective noncardiac surgery for a minimum 6-month period to reduce ischemic risks after the implantation of a second-generation metallic drug-eluting stent (DES)...
October 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28819961/-bioresorbable-scaffolds-in-the-treatment-of-coronary-artery-disease-expert-consensus-statement-of-the-association-of-cardiovascular-interventions-of-the-polish-cardiac-society-acvi-pcs
#11
Krzysztof Reczuch, Krzysztof Milewski, Wojciech Wąsek, Łukasz Rzeszutko, Wojciech Wojakowski, Michał Hawranek, Adrian Włodarczak, Tomasz Pawłowski, Janusz Kochman, Sławomir Dobrzycki, Marek Grygier, Andrzej Ochała, Jarosław Wójcik, Maciej Lesiak, Dariusz Dudek, Jacek Legutko
Bioresorbable scaffold coated with antimitotic drug is the latest development in the coronary stents technology. The concept of temporary scaffolding and natural vessel healing after angioplasty is a very attractive alternative to conventional metal stents. The results of the first observational studies have confirmed their ultimate biodegradation. Newest results of randomised trials and registries in broader clinical and anatomical indications also revealed the limitations of the first generation of scaffolds...
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28795296/current-trends-in-selection-of-conduits-for-coronary-artery-bypass-grafting
#12
REVIEW
Thierry Carrel, Bernhard Winkler
The procedure of coronary artery bypass grafting continues to be the "gold standard" for patients with multivessel coronary artery disease and left main stenosis due to favourable long-term and consistent outcomes despite the advent of new generations of stents. But the targeted better long-term outcome of surgical revascularization over percutaneous interventions depends on several variables and aspects; one of them is the choice of conduits used to bypass the stenosed arteries. Coronary artery bypass surgery has been studied and debated for decades and the same applies to the selection of grafts...
August 9, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28793343/a-new-approach-for-the-pre-clinical-optimization-of-a-spatial-configuration-of-bifurcated-endovascular-prosthesis-placed-in-abdominal-aortic-aneurysms
#13
Andrzej Polanczyk, Aleksandra Piechota-Polanczyk, Ludomir Stefańczyk
Complexity of the spatial configuration of an aortic implant with bifurcation in the distal part is related to changes in blood hemodynamic in the area of bifurcation which may disturb blood flow and lead to thrombus formation. This study was designed to characterize parameters which define spatial configuration of an aortic implant for which the risk of thrombus formation is the smallest. We used AngioCT data from 74 patients, aged 55 ±10 years, after endovascular procedure to prepare 3D geometries of stent-grafts...
2017: PloS One
https://www.readbyqxmd.com/read/28781248/long-term-data-of-brs-presented-at-europcr-2017-friday-19-may
#14
Patrick W Serruys, Athanasios Katsikis, Yoshinobu Onuma
Bioresorbable scaffolds (BRS) were designed more than 30 years ago to overcome the disadvantages related to the permanent implantation of a metallic stent and, at present, a number of these devices have obtained a CE mark on the basis of midterm follow-up studies. However, although BRS have already been introduced into clinical practice, intensive research is ongoing worldwide to clarify their long-term safety and effectiveness. This type of research has captivated the interest of the cardiovascular community after the recent publication of long-term follow-up data from randomised trials demonstrating increased late scaffold thrombosis in the Absorb™ BRS (Abbott Vascular, Santa Clara, CA, USA)...
August 4, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28766881/angiographic-and-clinical-performance-of-polymer-free-biolimus-eluting-stent-in-patients-with-st-segment-elevation-acute-myocardial-infarction-in-a-metropolitan-public-hospital-the-besami-mucho-study
#15
Gregory A Sgueglia, Fabrizio D'Errico, Gaetano Gioffrè, Antonella De Santis, Francesco Summaria, Fabiana Piccioni, Achille Gaspardone
OBJECTIVES: This study aimed at assessing the performance of a new generation polymer-free biolimus-eluting stent (BES) in real-world patients with ST-segment elevation myocardial infarction (STEMI). BACKGROUND: Polymers components of early-generation drug-eluting stents have been implicated in the pathogenesis of delayed arterial healing, vessel remodeling, and delayed stent thrombosis. Recently, a novel polymer-free BES has shown excellent clinical performance in clinical trial setting...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28762932/-results-of-a-randomized-study-multivessel-stenting-and-staged-revascularization-in-patients-with-st-elevation-myocardial-infarction-using-second-generation-drug-covered-stents
#16
R S Tarasov, V I Ganyukov, A V Protopopov, O L Barbarash, L S Barbarash
Lack of evidence base on the use of 2-nd generation drug covered stents in patients with ST-elevation myocardial infarction (STEMI) with multivessel lesions in coronary vascular bed makes it important to conduct studies of new devices in a framework of multivessel stenting in primary percutaneous coronary intervention (PPCI) and staged revascularization. Controversial data on outcomes of the strategy of multiple revascularization in STEMI might be related to the use of previous generation coronary stents in this category of patients...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28760722/optical-coherence-tomography-assessment-of-new-generation-mesh-covered-stents-after-carotid-stenting
#17
Tomoyuki Umemoto, Gianmarco de Donato, Andrea Pacchioni, Bernhard Reimers, Giuseppe Ferrante, Mitsuaki Isobe, Carlo Setacci
AIMS: The aim of this study was to identify the findings by optical coherence tomography (OCT) after carotid artery stenting (CAS) with two different types of new generation mesh- covered stents. METHODS AND RESULTS: Sixteen consecutive patients undergoing CAS with mesh-covered stents and high-definition OCT image acquisition were enrolled in the study. Cross-sectional OCT images for the presence of strut malapposition (SM) and plaque prolapse (PP) were evaluated under using the proximal or distal embolic protection device (EPD)...
August 1, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28754807/balloon-assisted-coil-embolization-and-large-stent-delivery-for-cerebral-aneurysms-with-a-new-generation-of-dual-lumen-balloons-copernic-2l
#18
Adrien Guenego, Jean-Baptiste Zerlauth, Francesco Puccinelli, Steven Hajdu, David C Rotzinger, Felix Zibold, Eike I Piechowiak, Pasquale Mordasini, Jan Gralla, Tomas Dobrocky, Roy T Daniel, René Chapot, Pascal J Mosimann
INTRODUCTION: Dual coaxial lumen balloon microcatheters through which small stents can be delivered have recently been described. We report a series of a new type of dual lumen balloon catheter with a parallel lumen design enabling enhanced inflation and deflation properties through which larger stents may be deployed, including flow diverters (FD). METHODS: All aneurysms that were treated with a Copernic 2L (COP2L) dual lumen balloon catheter at our institution between February 2014 and December 2016 were assessed...
July 28, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28722295/prevalence-correlates-and-impact-of-coronary-calcification-on-adverse-events-following-pci-with-newer-generation-des-findings-from-a-large-multiethnic-registry
#19
Robert S Copeland-Halperin, Usman Baber, Melissa Aquino, Anitha Rajamanickam, Swathi Roy, Choudhury Hasan, Nitin Barman, Jason C Kovacic, Pedro Moreno, Prakash Krishnan, Joseph M Sweeny, Roxana Mehran, George Dangas, Annapoorna S Kini, Samin K Sharma
OBJECTIVES: We sought to determine the prevalence, predictors, and clinical impact of target lesion calcification in patients undergoing percutaneous coronary intervention (PCI) with newer generation drug-eluting stents (DES) and devices. BACKGROUND: Coronary calcification is independently associated with adverse outcomes following PCI. While newer DES and contemporary devices are considered safer and more efficacious, their influence on outcomes following PCI of heavily calcified lesions is unknown...
July 19, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28720725/optical-coherence-tomography-findings-in-patients-with-coronary-stent-thrombosis-a-report-of-the-prestige-consortium-prevention-of-late-stent-thrombosis-by-an-interdisciplinary-global-european-effort
#20
MULTICENTER STUDY
Tom Adriaenssens, Michael Joner, Thea C Godschalk, Nikesh Malik, Fernando Alfonso, Erion Xhepa, Dries De Cock, Kenichi Komukai, Tomohisa Tada, Javier Cuesta, Vasile Sirbu, Laurent J Feldman, Franz-Josef Neumann, Alison H Goodall, Ton Heestermans, Ian Buysschaert, Ota Hlinomaz, Ann Belmans, Walter Desmet, Jurrien M Ten Berg, Anthony H Gershlick, Steffen Massberg, Adnan Kastrati, Giulio Guagliumi, Robert A Byrne
BACKGROUND: Stent thrombosis (ST) is a serious complication following coronary stenting. Intravascular optical coherence tomography (OCT) may provide insights into mechanistic processes leading to ST. We performed a prospective, multicenter study to evaluate OCT findings in patients with ST. METHODS: Consecutive patients presenting with ST were prospectively enrolled in a registry by using a centralized telephone registration system. After angiographic confirmation of ST, OCT imaging of the culprit vessel was performed with frequency domain OCT...
September 12, 2017: Circulation
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