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Coronary artery stent

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https://www.readbyqxmd.com/read/28811677/the-relationship-between-vegfa-and-tgfb1-polymorphisms-and-target-lesion-revascularization-after-elective-percutaneous-coronary-intervention
#1
Tadeusz Osadnik, Andrzej Lekston, Kamil Bujak, Joanna Katarzyna Strzelczyk, Lech Poloński, Mariusz Gąsior
BACKGROUND AND AIM: The specific association between genetic variation and in-stent restenosis is still only partly understood. The aim of this study is to analyze the relationship between functional polymorphisms in the genes encoding vascular endothelial growth factor A (VEGF-A; rs699947) and transforming growth factor beta 1 (TGF-β1; rs1800470) and target lesion revascularization (TLR) risk. METHODS: A total of 676 patients (805 lesions) with stable coronary artery disease (SCAD) who received elective percutaneous coronary intervention (PCI) with at least one bare-metal stent implantation were included...
2017: Disease Markers
https://www.readbyqxmd.com/read/28810900/polymer-free-dual-drug-eluting-stents-evaluated-in-a-porcine-model
#2
Bin Zhang, Bo Zheng, Xingang Wang, Qiuping Shi, Jia Jia, Yong Huo, Chunshui Pan, Jingyan Han, Ming Chen
BACKGROUND: Although drug-eluting stents have dramatically reduced the rates of restenosis and target lesion revascularization, they are associated with stent thrombosis (ST), a catastrophic event likely due to delayed endothelialization and chronic inflammation caused by the polymer and the metal scaffolds. To increase the safety and efficacy of stents, polymer-free dual drug-eluting stents (DDES) have been developed. METHODS: A total 160 stents (Bare-metal stents (BMS), polymer-free probucol stents (PrES), sirolimus-eluting stents (SES) and DDES) were randomly implanted in the coronary arteries of 80 pigs...
August 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28807577/a-comparison-of-inflammatory-responses-between-robotically-enhanced-coronary-artery-bypass-grafting-and-conventional-coronary-artery-bypass-grafting-implications-for-hybrid-revascularization
#3
Galina Leyvi, Kumar Vivek, Sankalp Sehgal, Adrienne Warrick, Kea Alexa Moncada, Nancy Shilian, Jonathan D Leff, Robert E Michler, Joseph J DeRose
OBJECTIVE: The inflammatory response elicited by robotically enhanced coronary artery bypass grafting (r-CABG) has not been well described. When r-CABG is performed as part of hybrid coronary revascularization, the inflammatory milieu and the timing of percutaneous coronary intervention may affect the stent patency negatively in the short and long term. The goal of this study was to describe the extent and time course of cytokine release after r-CABG compared with conventional CABG (c-CABG) and to elucidate the optimal timing for r-CABG in the setting of hybrid coronary revascularization for a future study...
April 26, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28806185/graft-quality-verification-in-coronary-artery-bypass-graft-surgery-how-when-and-why
#4
Teresa M Kieser
PURPOSE OF REVIEW: The coronary artery bypass graft (CABG) operation is one of the few remaining operations/interventions on diseased arteries that are not routinely verified during or immediately after the procedure. This review answers the 'how', 'when' and 'why' of intraoperative CABG assessment. RECENT FINDINGS: More recent than new literature on this topic, is the increased interest in quality assurance of CABG. This is most likely due to reports in the last 5 years suggesting CABG superiority to percutaneous coronary intervention (PCI) for improved mid-term and long-term outcomes; for example, for patients with diabetes mellitus (Freedom Trial by Farkouh in 2012), and for patients with SYNTAX score ≥ 33 (SYNTAX Trial by Mohr in 2013)...
August 12, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28804959/head-to-head-comparison-of-prasugrel-versus-ticagrelor-in-patients-undergoing-percutaneous-coronary-intervention-a-meta-analysis-of-randomized-controlled-trials
#5
Ryota Sakurai, Ivana Burazor, Heidi N Bonneau, Hideaki Kaneda
OBJECTIVES: We sought to compare the efficacy and safety of prasugrel and ticagrelor in patients with coronary artery disease undergoing percutaneous coronary intervention (PCI). BACKGROUND: Evidence from randomized head-to-head comparison between prasugrel and ticagrelor is rare regarding clinical endpoints. METHODS: PubMed, the Cochrane Library, and Web of Science were queried with the terms "prasugrel," "ticagrelor," and "randomized." Relevant randomized controlled trials (RCTs) or the same terms were also surveyed using clinicaltrials...
August 13, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28802735/incidence-of-cardiovascular-events-and-vascular-interventions-in-patients-with-type-2-diabetes
#6
Suzanne E Engelen, Yolanda van der Graaf, Manon C Stam-Slob, Diederick E Grobbee, Maarten J Cramer, L Jaap Kappelle, Gert J de Borst, Frank L J Visseren, Jan Westerink
OBJECTIVE: Diabetes mellitus is associated with an increased risk for cardiovascular morbidity and mortality. The vascular burden in terms of incidence of cardiovascular events (CVE) and vascular interventions is however poorly quantified. In this study we evaluated the incidence rates of CVE and vascular interventions in patients with type 2 diabetes (T2DM) with and without cardiovascular disease (CVD) in comparison to patients without type 2 diabetes. RESEARCH DESIGN AND METHODS: In a cohort of 9...
July 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28802533/bifurcation-culprit-lesions-in-st-segment-elevation-myocardial-infarction-procedural-success-and-5-year-outcome-compared-with-nonbifurcation-lesions
#7
Pablo Salinas, Hernán Mejía-Rentería, Raúl Herrera-Nogueira, Pilar Jiménez-Quevedo, Luis Nombela-Franco, Iván Javier Núñez-Gil, Nieves Gonzalo, María Del Trigo, María José Pérez-Vizcayno, Alicia Quirós, Javier Escaned, Carlos Macaya, Antonio Fernández-Ortiz
INTRODUCTION AND OBJECTIVES: We assessed short- and long-term outcomes of primary angioplasty in ST-segment elevation myocardial infarction by comparing bifurcation culprit lesions (BCL) with non-BCL. METHODS: Observational study with a propensity score matched control group. Among 2746 consecutive ST-segment elevation myocardial infarction patients, we found 274 (10%) patients with BCL. The primary outcome was a composite endpoint including all-cause death, myocardial infarction, coronary artery bypass grafting or target vessel revascularization, assessed at 30-days and 5-years...
August 9, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28802512/cangrelor-versus-clopidogrel-on-a-background-of-unfractionated-heparin-from-champion-phoenix
#8
Muthiah Vaduganathan, Robert A Harrington, Gregg W Stone, Ph Gabriel Steg, C Michael Gibson, Christian W Hamm, Matthew J Price, Efthymios N Deliargyris, Jayne Prats, Kenneth W Mahaffey, Harvey D White, Deepak L Bhatt
Cangrelor is approved for use during percutaneous coronary intervention (PCI) and is administered with different parenteral anticoagulants. We examined the efficacy and safety of cangrelor in the subgroup of patients who received unfractionated heparin (UFH) during PCI in the modified intention-to-treat population of the randomized CHAMPION PHOENIX trial (cangrelor vs clopidogrel; n = 10,939). The primary efficacy end point was the composite of death, myocardial infarction, ischemia-driven revascularization, or stent thrombosis (ST) at 48 hours...
July 18, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28801539/cangrelor-in-older-patients-undergoing-percutaneous-coronary-intervention-findings-from-champion-phoenix
#9
Matthew A Cavender, Deepak L Bhatt, Gregg W Stone, Ph Gabriel Steg, C Michael Gibson, Christian W Hamm, Matthew J Price, Jayne Prats, Steven Elkin, Efthymios N Deliargyris, Kenneth W Mahaffey, Harvey D White, Robert A Harrington
BACKGROUND: Older patients treated with percutaneous coronary intervention are at increased risk of periprocedural events. METHODS AND RESULTS: CHAMPION (cangrelor versus standard therapy to achieve optimal management of platelet inhibition) PHOENIX randomized 11 145 patients to cangrelor or clopidogrel. We sought to determine the outcomes in the prespecified subgroup of patients ≥75 years old (n=2010; 18%). Cangrelor resulted in directionally consistent effects on the primary end point (death, myocardial infarction, ischemia-driven revascularization, or stent thrombosis) in patients ≥75 years old (odds ratio [OR], 0...
August 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28800599/extracting-information-from-free-text-electronic-patient-records-to-identify-practice-based-evidence-of-the-performance-of-coronary-stents
#10
Yoon Seob Kim, Dukyong Yoon, JungHyun Byun, Hojun Park, Ahram Lee, Il Hyun Kim, Sukhoon Lee, Hong-Seok Lim, Rae Woong Park
BACKGROUND AND OBJECTIVE: Percutaneous coronary intervention (PCI) using drug-eluting stents (DES) is an indispensable treatment for coronary artery disease. However, to evaluate the performance of various types of stents for PCI, numerous resources are required. We extracted clinical information from free-text records and, using practice-based evidence, compared the efficacy of various DES. MATERIALS AND METHODS: We developed a text mining tool based on regular expression and applied it to PCI reports stored in the electronic health records (EHRs) of Ajou University Hospital from 2010-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28799701/drug-eluting-stents-versus-coronary-artery-bypass-grafting-for-left-main-coronary-artery-disease
#11
Hisato Takagi, Tomo Ando, Takuya Umemoto
OBJECTIVES: To compare follow-up outcomes after percutaneous coronary intervention with drug-eluting stents (DES-PCI) versus coronary artery bypass grafting (CABG) for left-main coronary artery disease (LMCAD), we performed a meta-analysis of randomized controlled trials (RCTs) and observational studies with propensity-score analysis. METHODS: MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials were searched through November 2016. Eligible studies were RCTs or observational studies with propensity-score analysis of DES-PCI versus CABG enrolling patients with LMCAD and reporting ≥ 6-month mortality, myocardial infarction (MI), stroke, or repeat revascularization (RRV)...
August 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28799447/a-higher-volume-of-fibrotic-tissue-on-virtual-histology-prior-to-coronary-stent-implantation-predisposes-to-more-pronounced-neointima-proliferation
#12
Steven Haine, Kristien Wouters, Hielko Miljoen, Tom Vandendriessche, Marc Claeys, Johan Bosmans, Christiaan Vrints
BACKGROUND: Since neointima smooth muscle cells (SMC) mainly originate from the vessel wall, we investigated whether atherosclerotic plaque composition influences subsequent in-stent neointima proliferation and restenosis. METHODS: We performed intravascular ultrasound (IVUS) with virtual histology in 98 patients prior to elective bare-metal stent (BMS) implantation in de novo coronary artery lesions. Virtual histology variables pre-percutaneous coronary intervention (PCI) were related to in-stent neointima proliferation six months after implantation assessed as late luminal loss of 0...
August 11, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28799426/evaluation-of-the-svelte-medical-systems-slender-ids-sirolimus-eluting-coronary-stent-on-a-wire-integrated-delivery-system-for-the-treatment-of-coronary-artery-disease
#13
Stefan Verheye
The SLENDER Integrated Delivery System (IDS™) is an 'all-in-one' fixed-wire coronary stenting device designed for direct stenting, precluding the need for conventional guidewires and predilatation balloons. It achieves ultra-low profiles (crossing profiles as low as 0.029" /0.737 mm), enabling the downsizing of catheters to facilitate TRI across wider subsets of patients. Areas covered: This paper aims to evaluate the SLENDER IDS for the treatment of coronary artery disease. Expert commentary: The system represents the first advance in coronary stent delivery since the introduction of rapid-exchange stent delivery systems more than 20 years ago and is a new...
August 11, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28799238/everolimus-eluting-bioresorbable-vascular-scaffold-implantation-to-treat-saphenous-vein-graft-disease-single-center-initial-experience
#14
Fabien Picard, Guillaume Marquis-Gravel, Robert Avram, Hung Q Ly, Jean-François Dorval, Serge Doucet, Quentin de Hemptinne, Philippe L L'allier, Jean-François Tanguay
AIMS: Recent studies have shown favorable outcomes with everolimus-eluting bioresorbable vascular scaffold (BVS) in patients with stable coronary artery disease. Data on the use of BVS in saphenous vein graft disease (SVG) is currently lacking. METHODS AND RESULTS: A total of 10 consecutive patients (13 lesions, including 6 in-stent restenosis) who underwent BVS for SVG disease between May 2013 and June 2015 at a tertiary care institution were included. Median follow-up period was 874 (720-926) days...
August 10, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28799125/non-polymer-drug-eluting-coronary-stents
#15
REVIEW
Nagavendra Kommineni, Raju Saka, Wahid Khan, Abraham J Domb
Cardiovascular complications are leading causes of most fatalities. Coronary artery disease and surgical failures contribute to the death of the majority of patients. Advanced research in the field of medical devices like stents has efficiently resolved these problems. Clinically, drug-eluting stents have proven their efficacy and safety compared to bare metal stents, which have problems of in-stent restenosis. However, drug-loaded stents coated with polymers have shown adverse effects related to the stability and deterioration of the polymer coating over time...
August 10, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28798016/bayesian-analysis-a-practical-approach-to-interpret-clinical-trials-and-create-clinical-practice-guidelines
#16
John A Bittl, Yulei He
Bayesian analysis is firmly grounded in the science of probability and has been increasingly supplementing or replacing traditional approaches based on P values. In this review, we present gradually more complex examples, along with programming code and data sets, to show how Bayesian analysis takes evidence from randomized clinical trials to update what is already known about specific treatments in cardiovascular medicine. In the example of revascularization choices for diabetic patients who have multivessel coronary artery disease, we combine the results of the FREEDOM trial (Future Revascularization Evaluation in Patients with Diabetes Mellitus: Optimal Management of Multivessel Disease) with prior probability distributions to show how strongly we should believe in the new Class I recommendation ("should be done") for a preference of bypass surgery over percutaneous coronary intervention...
August 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28797425/differential-rates-and-clinical-significance-of-periprocedural-myocardial-infarction-after-stenting-or-bypass-surgery-for%C3%A2-multivessel-coronary-disease-according-to-various-definitions
#17
Min Soo Cho, Jung-Min Ahn, Cheol-Hyun Lee, Do-Yoon Kang, Jung-Bok Lee, Pil Hyung Lee, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Cheol Whan Lee, Seong-Wook Park, Duk-Woo Park, Seung-Jung Park
OBJECTIVES: This study sought to estimate the differential incidence and prognostic significance of periprocedural myocardial infarction (MI) according to various definitions. BACKGROUND: In trials comparing percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG), the primary composite endpoint is very sensitive to the definition of MI. Especially, the definition of periprocedural MI has considerably varied, and uniform criteria are still unsettled...
August 14, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28797408/in-vivo-calcium-detection-by-comparing-optical-coherence-tomography-intravascular-ultrasound-and-angiography
#18
Xiao Wang, Mitsuaki Matsumura, Gary S Mintz, Tetsumin Lee, Wenbin Zhang, Yang Cao, Akiko Fujino, Yongqing Lin, Eisuke Usui, Yoshihisa Kanaji, Tadashi Murai, Taishi Yonetsu, Tsunekazu Kakuta, Akiko Maehara
OBJECTIVES: The aim of this study was to evaluate optical coherence tomography (OCT) and intravascular ultrasound (IVUS) versus coronary angiography in the assessment of target lesion calcification and its effect on stent expansion. BACKGROUND: IVUS is more sensitive than angiography in the detection of coronary artery calcium, but the relationship among IVUS, OCT, and angiography has not been studied. METHODS: Overall, 440 lesions (440 patients with stable angina) underwent OCT- and IVUS-guided stent implantation...
August 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28797113/clinical-outcomes-of-biodegradable-polymer-biolimus-eluting-biomatrix-stents-versus-durable-polymer-everolimus-eluting-xience-stents
#19
Da Hyon Lee, Taek Kyu Park, Young Bin Song, Woo Jung Chun, Rak Kyeong Choi, Jin-Ok Jeong, Eul Soon Im, Sang Wook Kim, Joo Myung Lee, Jeong Hoon Yang, Joo-Yong Hahn, Seung-Hyuk Choi, Jin-Ho Choi, Sang Hoon Lee, Hyeon-Cheol Gwon
There are limited data about clinical outcomes of biodegradable polymer biolimus-eluting BioMatrix stents (BP-BES) and durable polymer everolimus-eluting Xience stents (DP-EES) in real world practice. We sought to compare the clinical outcomes of BP-BES and DP-EES in real world cohorts of patients undergoing percutaneous coronary intervention. A prospective multicenter registry enrolled 999 patients treated with BP-BES and 1,000 patients treated with DP-EES. The primary outcome was target lesion failure, defined as a composite of cardiac death, target vessel-related myocardial infarction, or target lesion revascularization...
2017: PloS One
https://www.readbyqxmd.com/read/28796809/a-randomized-multicenter-trial-comparing-the-xience-everolimus-eluting-stent-with-the-cypher-sirolimus-eluting-stent-in-the-treatment-of-female-patients-with-de-novo-coronary-artery-lesions-the-spirit-women-study
#20
Anna Franzone, Serge Zaugg, Raffaele Piccolo, Maria Grazia Modena, Ghada W Mikhail, Josepa Mauri Ferré, Ruth Strasser, Liliana Grinfeld, Dik Heg, Peter Jüni, Stephan Windecker, Marie-Claude Morice
BACKGROUND: The comparative performance of different drug-eluting stents (DES) among female patients has not been assessed in a randomized manner. OBJECTIVES: The SPIRIT Women Clinical Evaluation trial compared the durable polymer everolimus-eluting XIENCE stent (DP-EES) with the durable polymer sirolimus-eluting Cypher stent (DP-SES) in women undergoing percutaneous coronary intervention (PCI). METHODS: A total of 455 female patients with stable CAD were randomly assigned to receive DP-EES (n = 304) or DP-SES (n = 151)...
2017: PloS One
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