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Coronary Angioplasty

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https://www.readbyqxmd.com/read/28425201/numerical-analysis-of-crimping-and-inflation-process-of-balloon-expandable-coronary-stent-using-implicit-solution
#1
Jakub Bukala, Piotr Kwiatkowski, Jerzy Malachowski
The paper presents an applied methodology for numerical Finite Element analysis of coronary stent crimping and the free inflation process with the use of a folded non-compliant angioplasty balloon. The use of an implicit scheme is considered as the most original part of the work, as an explicit finite element procedure is very often preferred. Hitherto, when the implicit solution was used for the Finite Element solution, the simulated issue was largely simplified. Therefore, the authors focused on the modelling methodology with minimum possible simplification, i...
April 20, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28425039/disaggregation-following-agonist-induced-platelet-activation-in-patients-on-dual-antiplatelet-therapy
#2
Patricia P Wadowski, Beate Eichelberger, Christoph W Kopp, Joseph Pultar, Daniela Seidinger, Renate Koppensteiner, Irene M Lang, Simon Panzer, Thomas Gremmel
Disaggregation as the difference between maximal and final platelet aggregation by light transmission aggregometry indicates the stability of platelet aggregates. We evaluated the extent of disaggregation after platelet stimulation with adenosine diphosphate (ADP), arachidonic acid (AA), collagen, epinephrine, and thrombin receptor-activating peptide (TRAP)-6 in 323 patients on dual antiplatelet therapy with daily aspirin and clopidogrel (group 1), prasugrel (group 2), or ticagrelor (group 3) therapy. All patients in group 1 underwent elective angioplasty and stenting, whereas all patients included in groups 2 and 3 suffered from acute coronary syndromes (STEMI or NSTEMI) and underwent urgent PCI...
April 19, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28424500/percutaneous-transluminal-coronary-angioplasty-for-acute-myocardial-infarction-the-impact-on-sexual-function-in-men
#3
C Goławski, M Dłużniewski, E Kostarska-Srokosz, K Nowosielski, J Syska-Sumińska, M Chmielewski, R Kowalczyk
The aim of this study was to evaluate changes in men's sexual function after percutaneous transluminal coronary angioplasty (PTCA) treatment for acute myocardial infarction (MI). Sixty men aged 18-70 years old were included in the study. All patients had acute MI and underwent PTCA. They underwent two post PCTA visits: 3 days and between 4 and 6 months after PTCA. During the first and second visit a standard medical interview was carried out and sexual function data collected using Changes in Sexual Functioning Questionnaire and International Index of Erectile Function (IIEF-15)...
April 20, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28421628/comparison-of-the-nephrotoxic-effects-of-iodixanol-versus-iohexol-in-patients-with-chronic-heart-failure-undergoing-coronary-angiography-or-angioplasty
#4
Tao Song, Min Song, Zhiming Ge, Yong Li, Peimiao Shi, Menghan Sun
OBJECTIVES: The aim of this clinical trial is to compare iodixanol with iohexol for the incidence of contrast-induced nephropathy in patients with chronic heart failure with reduced ejection fraction who are currently undergoing coronary angiography or angioplasty. METHODS: The clinical trial included 220 consecutive patients with chronic heart failure with reduced ejection fraction undergoing coronary angiography or angioplasty. Study participants were administered either iodixanol (n = 110) or iohexol (n = 110)...
April 19, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28409165/effects-of-collaboration-care-model-on-the-quality-of-life-in-patients-after-coronary-angioplasty-a-randomized-controlled-clinical-trial
#5
Parastoo Rezapoor, Mohsen Shahriari, Hamid Sanei, Mahin Moeini
BACKGROUND: Coronary artery diseases and therapies such as coronary angioplasty would lead to changes in the quality of life in patients. The aim of this study was to determine the effects of collaborative care model on the quality of life in patients after coronary angioplasty. METHODS: This randomized controlled clinical trial was conducted in Isfahan, Iran during 2015. In this study, 50 samples were selected by simple sampling and randomly allocated into two equal groups of intervention and control...
April 2017: International Journal of Community Based Nursing and Midwifery
https://www.readbyqxmd.com/read/28398398/-new-technologies-and-applications-for-drug-coated-balloons
#6
Bernardo Cortese, Gaetano Di Palma, Roberto Nerla, Antonio Micari
Drug-eluting stents (DES) represent nowadays the gold standard treatment for coronary artery disease. Despite the safety and efficacy, and favorable long-term clinical outcomes of new generation DES, their use is still associated with a not negligible risk of long-term events, related to the presence of a definitive prosthesis in the vessel wall. In addition, DES implantation is not always desirable in particular anatomic settings (small vessels, bifurcations) or in patients with higher bleeding risk. In recent years, drug-coated balloons (DCB) have been developed to overcome some of these limitations, offering a combined mechanical (balloon dilation) and biological therapy (drug-release)...
February 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28394933/the-acute-impact-of-high-dose-lipid-lowering-treatment-on-endothelial-progenitor-cells-in-patients-with-coronary-artery-disease-the-remedy-epc-early-substudy
#7
Rosalinda Madonna, Francesca Vera Renna, Paola Lanuti, Matteo Perfetti, Marco Marchisio, Carlo Briguori, Gerolama Condorelli, Lamberto Manzoli, Raffaele De Caterina
RATIONALE AND OBJECTIVE: Endothelial progenitor cells (EPCs) play a role in vascular repair, while circulating endothelial cells (CECs) are biomarkers of vascular damage and regeneration. Statins may promote EPC/CEC mobilization in the peripheral blood. We evaluated whether pre-procedural exposure to different lipid-lowering drugs (statins±ezetimibe) can acutely increase levels/activity of EPCs/CECs in patients with stable coronary artery disease (CAD). METHODS: In a planned sub-analysis of the Rosuvastatin For REduction Of Myocardial DamagE During Coronary AngioplastY (REMEDY) trial, 38 patients with stable CAD on chronic low-dose statin therapy were randomized, in a double-blind, placebo-controlled design, into 4 groups before PCI: i...
2017: PloS One
https://www.readbyqxmd.com/read/28385401/vascular-access-site-and-outcomes-among-26-807-chronic-total-coronary-occlusion-angioplasty-cases-from-the-british-cardiovascular-interventions-society-national-database
#8
Tim Kinnaird, Richard Anderson, Nick Ossei-Gerning, Sean Gallagher, Adrian Large, Julian Strange, Peter Ludman, Mark de Belder, James Nolan, David Hildick-Smith, Mamas Mamas
OBJECTIVES: The aim of this study was to assess, using a national percutaneous coronary intervention (PCI) database, access-site choice and outcomes after chronic total occlusion (CTO) PCI. BACKGROUND: Given the influence of access site on outcomes, the use of radial access in CTO PCI warrants further investigation. METHODS: Data were analyzed from the British Cardiovascular Intervention Society dataset of 26,807 elective CTO PCI procedures performed in England and Wales between 2006 and 2013...
April 10, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28384181/access-to-percutaneous-transluminal-coronary-angioplasty-and-30-day-mortality-in-patients-with-incident-stemi-differentials-by-educational-level-and-gender-over-11-years
#9
Laura Cacciani, Nera Agabiti, Anna Maria Bargagli, Marina Davoli
BACKGROUND: Socioeconomic status and gender are associated with access to cardiac procedures and mortality after AMI, also in countries with universal health care systems. Our objective was to evaluate the association and trends of educational level or gender and the following outcomes: 1) access to PTCA; 2) 30-day mortality. METHODS: We conducted an observational study based on 14,013 subjects aged 35-74 years, residing in Rome in 2001, and hospitalised for incident STEMI within 2012 in the Lazio region...
2017: PloS One
https://www.readbyqxmd.com/read/28369362/distance-to-invasive-heart-centre-performance-of-acute-coronary-angiography-and-angioplasty-and-associated-outcome-in-out-of-hospital-cardiac-arrest-a-nationwide-study
#10
Tinne Tranberg, Freddy K Lippert, Erika F Christensen, Carsten Stengaard, Jakob Hjort, Jens Flensted Lassen, Frants Petersen, Jan Skov Jensen, Caroline Bäck, Lisette Okkels Jensen, Jan Ravkilde, Hans Erik Bøtker, Christian Juhl Terkelsen
Aims: To evaluate whether the distance from the site of event to an invasive heart centre, acute coronary angiography (CAG)/percutaneous coronary intervention (PCI) and hospital-level of care (invasive heart centre vs. local hospital) is associated with survival in out-of-hospital cardiac arrest (OHCA) patients. Methods and results: Nationwide historical follow-up study of 41 186 unselected OHCA patients, in whom resuscitation was attempted between 2001 and 2013, identified through the Danish Cardiac Arrest Registry...
March 29, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28364175/evaluation-of-radiological-risk-during-coronary-angioplasty-procedures-comparison-of-transradial-and-transfemoral-approaches
#11
Piotr Iwachow, Izabela Miechowicz, Piotr Kałmucki, Beata Dziki, Andrzej Szyszka, Artur Baszko, Tomasz Siminiak
Increasing operator experience and newer available interventional cardiology devices require reassessment of radiological risk related to percutaneous coronary interventions (PCI). We aimed at comparison of radiological risk and procedural data of PCIs performed by radial (RA) and femoral (FA) approach in real life patients. Detailed retrospective analysis of 1500 consecutive PCIs with the use of radial or femoral access was performed. Comparison between RA and FA groups included procedural time (PT), fluoroscopy time (FT), radiation dose and contrast volume usage...
March 31, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28353317/self-expanding-stentys-stent-in-daily-routine-use
#12
Michał Kidawa, Krzysztof Chiżyński, Michał Kacprzak, Anna Ledakowicz-Polak, Marzenna Zielińska
In the era of modern interventional cardiology implantation of balloon expandable stent is a finishing touch of almost every coronary angioplasty. However sometimes we face clinical situation when decision on stent diameter is complicated, especially in ectatic part of arteries, in situations when artery lumen is obscured with thrombus or when reference diameter of proximal and distal part of lesion vary greatly. That is why idea of self-apposing stent similar to one used in peripheral vascular interventions was adopted into cardiology...
March 29, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28351208/angiographic-dissection-patterns-and-patency-outcomes-after-balloon-angioplasty-for-superficial-femoral-artery-disease
#13
Masahiko Fujihara, Mitsuyoshi Takahara, Shinya Sasaki, Kiyonori Nanto, Makoto Utsunomiya, Osamu Iida, Yoshiaki Yokoi
PURPOSE: To investigate the angiographic dissection patterns after balloon angioplasty for superficial femoral artery (SFA) lesions, the clinical outcome associated with each dissection pattern, and the predictive factors for severe dissection. METHODS: A retrospective, multicenter analysis examined 621 patients (mean age 72.8±9.5 years; 414 men) with 748 symptomatic de novo SFA lesions treated with endovascular therapy. Vessel dissection after the initial balloon angioplasty procedure was graded into 7 types according to a modified version of the coronary artery classification types A to F...
March 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28346285/effect-of-early-revascularization-on-outcomes-in-diabetic-patients-with-stable-ischemic-heart-disease-and-previous-myocardial-infarction-in-the-bypass-angioplasty-investigation-2-diabetes-trial
#14
Matthew J Chung, Eric Novak, David L Brown
BACKGROUND: Survivors of a myocardial infarction (MI) are at a considerable risk of developing further cardiovascular events, including recurrent MI, heart failure, stroke, and death. Patients with type 2 diabetes mellitus and stable ischemic heart disease (SIHD) have worse outcomes than their nondiabetic counterparts, and those with previous MI may be at particularly high risk. Yet, little is known about the effect of adding early revascularization to intensive medical therapy in this high-risk group...
March 24, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28338117/endovascular-treatment-for-acute-mesenteric-ischaemia-in-a-young-woman-with-polyarterial-disease
#15
Mihai C Ober, Calin Homorodean, Dan A Tataru, Antonia E Macarie, Camelia D Ober, Dan M Olinic
BACKGROUND: Acute mesenteric ischaemia is a condition with a grim prognosis on conservative treatment. Endovascular revascularisation is a promising approach for some of these patients. CASE REPORT: We present the case of a 44-year-old woman with a history of severe arterial hypertension, left leg claudication, and overlooked symptoms of chronic mesenteric ischaemia for one year, who was admitted for severe abdominal pain for one week. Computed tomographic angiography (CTA) showed acute mesenteric ischaemia by occlusion of the coeliac trunk and the superior mesenteric artery (SMA), without bowel perforation...
March 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28329313/single-coronary-artery-and-neonatal-arterial-switch-operation-early-and-long-term-outcomes%C3%A2
#16
Sébastien Gerelli, Margaux Pontailler, Bruno Rochas, Emanuela Angeli, Mathieu Van Steenberghe, Damien Bonnet, Pascal Vouhé, Olivier Raisky
OBJECTIVES: The presence of single coronary artery (CA) in the arterial switch operation (ASO) for neonatal treatment with transposition of the great arteries (TGA) has been reported to be an independent risk factor for early death after surgical repair and late reintervention. The study objective was to evaluate the mortality and the CA stenosis risk at early and long term in neonatal ASO for TGA and single CA. METHODS: Between January 1987 and January 2010, 979 neonates underwent an ASO, of which 73 had a single CA (7...
March 7, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28321242/aggressive-plaque-modification-with-rotational-atherectomy-and-cutting-balloon-for-optimal-stent-expansion-in-calcified-lesions
#17
Zhe Tang, Jing Bai, Shao-Ping Su, Pui-Wai Lee, Liang Peng, Tao Zhang, Ting Sun, Jing-Guo Nong, Tian-De Li, Yu Wang
OBJECTIVE: To evaluate the factors affecting optimal stent expansion in calcified lesions treated by aggressive plaque modification with rotational atherectomy (RA) and a cutting balloon (CB). METHODS: From January 2014 to May 2015, 92 patients with moderate to severe coronary calcified lesions underwent rotational atherectomy and intravascular ultrasound imaging at Chinese PLA General Hospital (Beijing, China) were included in this study. They were divided into a rotational artherectomy combined with cutting balloon (RACB) group (46 patients treated with RA followed by CB angioplasty) and an RA group (46 patients treated with RA followed by plain balloon angioplasty)...
December 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28319269/withdrawn-trimetazidine-for-stable-angina
#18
REVIEW
Agustín Ciapponi, Rudolf Pizarro, Jeff Harrison
BACKGROUND: Patients with stable angina not controlled by monotherapy with nitrates, beta blockers, or calcium channel blockers are often treated with combinations of these drugs. There may be adverse effects from, or contraindications to, the use of combinations. In low risk groups, medical treatment appears to be as good an option as percutaneous transluminal coronary angioplasty in terms of averting myocardial infarction, death, or subsequent revascularization. Revascularization procedures are too costly or inaccessible for many patients in developing countries therefore effective and safe medical treatment is needed...
March 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28318140/subclavian-artery-stenting-for-coronary-subclavian-steal-syndrome
#19
Wuqiang Che, Hui Dong, Xiongjing Jiang, Meng Peng, Yubao Zou, Lei Song, Huimin Zhang, Yuejin Yang, Runlin Gao
OBJECTIVES: To evaluate the safety and feasibility of subclavian artery stenting for coronary-subclavian steal syndrome (CSSS). BACKGROUND: CSSS is a rare cause of myocardial ischemia due to ipsilateral subclavian artery stenosis in patients who have undergone coronary artery bypass graft. However, current knowledge of the optimal therapy for CSSS is limited. METHODS: The clinical data of 37 patients (33 male; mean age 65 ± 6 years) with CSSS who had undergone subclavian artery stenting between April 2007 and December 2015 were analyzed...
March 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28317438/instantaneous-wave-free-ratio-versus-fractional-flow-reserve-to-guide-pci
#20
Matthias Götberg, Evald H Christiansen, Ingibjörg J Gudmundsdottir, Lennart Sandhall, Mikael Danielewicz, Lars Jakobsen, Sven-Erik Olsson, Patrik Öhagen, Hans Olsson, Elmir Omerovic, Fredrik Calais, Pontus Lindroos, Michael Maeng, Tim Tödt, Dimitrios Venetsanos, Stefan K James, Amra Kåregren, Margareta Nilsson, Jörg Carlsson, Dario Hauer, Jens Jensen, Ann-Charlotte Karlsson, Georgios Panayi, David Erlinge, Ole Fröbert
Background The instantaneous wave-free ratio (iFR) is an index used to assess the severity of coronary-artery stenosis. The index has been tested against fractional flow reserve (FFR) in small trials, and the two measures have been found to have similar diagnostic accuracy. However, studies of clinical outcomes associated with the use of iFR are lacking. We aimed to evaluate whether iFR is noninferior to FFR with respect to the rate of subsequent major adverse cardiac events. Methods We conducted a multicenter, randomized, controlled, open-label clinical trial using the Swedish Coronary Angiography and Angioplasty Registry for enrollment...
March 18, 2017: New England Journal of Medicine
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