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Coronary Angioplasty

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https://www.readbyqxmd.com/read/28227427/inexact-coronary-tree-matching-algorithm-with-artificial-nodes
#1
Helene Feuillatre, Jean-Claude Nunes, Christine Toumoulin, Helene Feuillatre, Jean-Claude Nunes, Christine Toumoulin, Jean-Claude Nunes, Helene Feuillatre, Christine Toumoulin
Coronary tree matching is applied to plan percutaneous vascular procedures. This work, which allows following each segment of non-isomorphic coronary trees over time, precedes the determination of the best 2D angiography view from C-arm acquisition system for angioplasty procedure. To match two 3D coronary trees which represent two successive cardiac phases, we adapted a reference inexact tree matching algorithm based on association graph and maximum clique. To improve the pair-wise matching performance of our approach, artificial nodes are introduced to take into account the topology variation between 3D vascular trees...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217690/iatrogenic-acute-ascending-aortic-dissection-with-intramural-hematoma-during-coronary-artery-stenting-a-case-report
#2
Mohamad El-Haress, Hicham Daadaa, Shima Shahjouei, Firas El-Bitar, Hisham Bahmad
BACKGROUND: Iatrogenic acute ascending aortic dissection during percutaneous coronary intervention (PCI) is an exceptionally rare and life-threatening sequel that requires early and accurate diagnosis along with rapid management. No guidelines have yet been established to direct decisions on the different treatment options that can be employed in the setting of acute aortic dissections caused by PCI. However, similar cases have been treated either by intracoronary stenting and conservative management as in localized aortocoronary dissections or by surgical intervention in cases of extensive aortic dissections...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28213569/trends-in-coronary-revascularization-and-ischemic-heart-disease-related-mortality-in-israel
#3
Orit Blumenfeld, Wasef Na'amnih, Ayelet Shapira-Daniels, Chaim Lotan, Tamy Shohat, Oz M Shapira
BACKGROUND: We investigated national trends in volume and outcomes of percutaneous coronary angioplasty (PCI), coronary artery bypass grafting (CABG), and ischemic heart disease-related mortality in Israel. METHODS AND RESULTS: Using International Classification of Diseases 9th and 10th revision codes, we linked 5 Israeli national databases, including the Israel Center for Disease Control National PCI and CABG Registries, the Ministry of Health Hospitalization Report, the Center of Bureau of Statistics, and the Ministry of Interior Mortality Report, to assess the annual PCI and CABG volume, procedural mortality, comorbidities, and ischemic heart disease-related mortality between 2002 and 2014...
February 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28212135/the-role-of-residual-intrastent-thrombus-during-primary-angioplasty-insights-from-the-coctail-ii-study
#4
Laura Gatto, Enrico Romagnoli, Francesco Versaci, Ugo Limbruno, Tomasz Pawlowski, Italo Porto, Valeria Marco, Luca Di Vito, Fabrizio Imola, Alberto Cremonesi, Francesco Prati
AIMS: Recent frequency-domain optical coherence tomography studies showed that a complete removal of thrombotic materials is rarely achieved after percutaneous coronary interventions for ST segment elevation myocardial infarction. Residual intrastent thrombus can embolize distally leading to microcirculatory injury. The aim was to find a possible correlation between residual intrastent thrombus and angiographic indexes of myocardial reperfusion. METHODS: The population consisted of 128 ST segment elevation myocardial infarction patients enrolled in the COCTAIL II trial...
February 15, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28190783/a-retrospective-analysis-of-catheter-based-sources-in-intravascular-brachytherapy
#5
J DeCunha, C Janicki, S A Enger
PURPOSE: Coronary artery disease involves the deposition of plaque along the walls of a coronary artery leading to narrowed or blocked vessels (stenosis) and is one of the main causes of death in developed countries. Percutaneous transluminal coronary angioplasty (PTCA) is used to reverse stenosis. Restenosis (renarrowing) of the treated vessel is a major complication of PTCA. A metal mesh tube (stent) can be placed inside the vessel to prevent restenosis. Tissue stress incurred during PTCA and stenting can provoke neointimal cell proliferation leading to in-stent restenosis (ISR)...
February 10, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28188434/bloodless-reperfusion-with-the-oxygen-carrier-hboc-201-in-acute-myocardial-infarction-a-novel-platform-for-cardioprotective-probes-delivery
#6
Jose M García-Ruiz, Carlos Galán-Arriola, Rodrigo Fernández-Jiménez, Jaume Aguero, Javier Sánchez-González, Ana García-Alvarez, Mario Nuno-Ayala, Gregory P Dubé, Zafiris Zafirelis, Gonzalo J López-Martín, Juan A Bernal, Enrique Lara-Pezzi, Valentín Fuster, Borja Ibáñez
Reperfusion, despite being required for myocardial salvage, is associated with additional injury. We hypothesize that infarct size (IS) will be reduced by a period of bloodless reperfusion with hemoglobin-based oxygen carriers (HBOC) before blood-flow restoration. In the pig model, we first characterized the impact of intracoronary perfusion with a fixed volume (600 ml) of a pre-oxygenated acellular HBOC, HBOC-201, on the healthy myocardium. HBOC-201 was administered through the lumen of the angioplasty balloon (i...
March 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28185417/left-main-coronary-angioplasty-of-a-9-year-old-child-with-bioresorable-vascular-scaffold
#7
Hasmukh Ravat, Swati Garekar, Vishal Changela
Familial hypercholesterolemia is an autosomal dominant disorder due to mutations in the low-density lipoprotein receptor gene, characterized by skin and tendon xanthomas, xanthelasmas, and increased risk of premature coronary artery disease. Here, we report a case of 9-year-old girl who presented with angina and dyspnoea on exertion with xanthomas and an elevated serum cholesterol and triglyceride. She had severe stenosis of the left main coronary artery (LMCA) requiring angioplasty and placement of Bioresorbable vascular scaffold (BVS)...
February 10, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28184335/drug-and-gene-eluting-stents-for-preventing-coronary-restenosis
#8
REVIEW
Kamali Manickavasagam Lekshmi, Hui-Lian Che, Chong-Su Cho, In-Kyu Park
Coronary artery disease (CAD) has been reported to be a major cause of death worldwide. Current treatment methods include atherectomy, coronary angioplasty (as a percutaneous coronary intervention), and coronary artery bypass. Among them, the insertion of stents into the coronary artery is one of the commonly used methods for CAD, although the formation of in-stent restenosis (ISR) is a major drawback, demanding improvement in stent technology. Stents can be improved using the delivery of DNA, siRNA, and miRNA rather than anti-inflammatory/anti-thrombotic drugs...
January 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/28180196/serial-transthoracic-coronary-doppler-shows-complete-reversibility-of-microvascular-obstruction-pattern-at-one-month-after-reperfused-acute-myocardial-infarction
#9
Camelia Diana Ober, Mihai Claudiu Ober, Adrian Corneliu Iancu
: "No reflow" phenomenon is a common complication with significant prognostic repercussions after reperfused acute myocardial infarction. Previous studies have shown the feasibility and prognostic significance of coronary microcirculation assessment by transthoracic Doppler of left anterior descending artery (LAD). The aim of the study was to evaluate the time course of the coronary microcirculation status after acute anterior myocardial infarction reperfused by primary angioplasty with stent on LAD...
January 31, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28173713/off-hour-primary-percutaneous-coronary-angioplasty-does-not-affect-contrast-induced-nephropathy-in-patients-with-st-segment-elevation-myocardial-infarction
#10
Yalcin Velibey, Ozan Tanik, Ahmet Oz, Tolga Sinan Guvenc, Koray Kalenderoglu, Ayca Gumusdag, Ozge Guzelburc, Ahmet Ilker Tekkesin, Ahmet Okan Uzun, Ahmet Taha Alper, Mehmet Eren
We evaluated whether primary percutaneous coronary intervention (pPCI) during off-hours is related to an increased incidence of contrast-induced nephropathy (CIN). We retrospectively analyzed the incidence of CIN mortality among 2552 patients with consecutive ST-segment elevation myocardial infarction treated with pPCI during regular hours (weekdays 8:00 am to 5:00 pm) and off-hours (weekdays 5:01 pm to 7:59 am, weekends and holidays). Patients in the off-hour group were more frequently admitted with acute heart failure symptoms (16...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28173689/evaluation-of-geographic-indices-describing-health-care-utilization
#11
Agnus M Kim, Jong Heon Park, Sungchan Kang, Yoon Kim
Objectives: The accurate measurement of geographic patterns of health care utilization is a prerequisite for the study of geographic variations in health care utilization. While several measures have been developed to measure how accurately geographic units reflect the health care utilization patterns of residents, they have been only applied to hospitalization and need further evaluation. This study aimed to evaluate geographic indices describing health care utilization. Methods: We measured the utilization rate and four health care utilization indices (localization index, outflow index, inflow index, and net patient flow) for eight major procedures (coronary artery bypass graft surgery, percutaneous transluminal coronary angioplasty, surgery after hip fracture, knee replacement surgery, caesarean sections, hysterectomy, computed tomography scans, and magnetic resonance imaging scans) according to three levels of geographic units in Korea...
January 2017: Journal of Preventive Medicine and Public Health, Yebang Ŭihakhoe Chi
https://www.readbyqxmd.com/read/28169119/reperfusion-therapy-of-myocardial-infarction-in-mexico-a-challenge-for-modern-cardiology
#12
Carlos Martínez-Sánchez, Alexandra Arias-Mendoza, Héctor González-Pacheco, Diego Araiza-Garaygordobil, Luis Alfonso Marroquín-Donday, Jorge Padilla-Ibarra, Carlos Sierra-Fernández, Alfredo Altamirano-Castillo, Amada Álvarez-Sangabriel, Francisco Javier Azar-Manzur, José Luis Briseño-de la Cruz, Salvador Mendoza-García, Yigal Piña-Reyna, Marco Antonio Martínez-Ríos
Mexico has been positioned as the country with the highest mortality attributed to myocardial infarction among the members of the Organization for Economic Cooperation and Development. This rate responds to multiple factors, including a low rate of reperfusion therapy and the absence of a coordinated system of care. Primary angioplasty is the reperfusion method recommended by the guidelines, but requires multiple conditions that are not reached at all times. Early pharmacological reperfusion of the culprit coronary artery and early coronary angiography (pharmacoinvasive strategy) can be the solution to the logistical problem that primary angioplasty rises...
February 3, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28168366/evolution-of-patency-rates-of-self-expandable-bare-metal-stents-for-endovascular-treatment-of-femoro-popliteal-arterial-occlusive-disease-does-stent-design-matter
#13
Karla Maria Treitl, Benedikt Woerner, Regina Schinner, Michael Czihal, Susan Notohamiprodjo, Ulrich Hoffmann, Marcus Treitl
OBJECTIVE: To analyse the patency rates of femoro-popliteal stenting with different self-expandable Nitinol stent-designs. METHODS: Two hundred and twenty-two patients (142 (64%) male; age 72.4 ± 11.6 years) with symptomatic femoro-popliteal peripheral arterial occlusive disease (PAOD) underwent percutaneous transluminal angioplasty (PTA) and stenting with three different Nitinol stents (interwoven IW: n = 70; closed-cell CC: n = 85; open-cell OC: n = 67)...
February 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28163839/interventional-treatment-of-the-left-subclavian-in-2-patients-with-coronary-steal-syndrome
#14
Julia Heid, Britta Vogel, Arnt Kristen, Wanda Kloos, Benedikt Kohler, Hugo A Katus, Grigorios Korosoglou
In patients with history of coronary artery disease angina pectoris is usually attributed to the progression of atherosclerotic lesions. However, in patients with previous coronary artery bypass graft operation (CABG) using internal mammary artery grafts, great vessel disease should also be considered. Herein we present two patients with history of CABG whose symptoms were suspicious for coronary ischemia. During cardiac catheterization reverse blood flow was observed from the left artery disease to the left internal mammary artery (LIMA) graft in both cases...
January 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28154591/impact-of-chronic-kidney-disease-on-long-term-outcome-in-coronary-bypass-candidates-treated-with-percutaneous-coronary-intervention
#15
Jian-Rong Peng, Chi-Jen Chang, Chun-Li Wang, Ying-Chang Tung, Hsin-Fu Lee
BACKGROUND AND OBJECTIVES: The aim of this study was to identify clinical, lesional, and procedural predictors for adverse outcomes of coronary angioplasty and stenting in coronary bypass candidates. SUBJECTS AND METHODS: This cohort study included 107 consecutive candidates for coronary artery bypass surgery who underwent percutaneous coronary intervention with multiple coronary stents between Jan 2004 and Dec 2011. The study endpoint was major adverse cardiovascular events (MACEs) including all-cause mortality, nonfatal myocardial infarction, repeat revascularization, and stent thrombosis...
January 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28154007/loss-of-endothelial-cxcr7-impairs-vascular-homeostasis-and-cardiac-remodeling-after-myocardial-infarction-implications-for-cardiovascular-drug-discovery
#16
Huifeng Hao, Sheng Hu, Hong Chen, Dawei Bu, Liyuan Zhu, Chuansheng Xu, Fei Chu, Xingyu Huo, Yue Tang, Xiaogang Sun, Bisen Ding, Depei Liu, Shengshou Hu, Miao Wang
BACKGROUND: -Genome-wide association studies identified the association of the CXCL12 genetic locus (which encodes the chemokine CXCL12, also known as stromal cell-derived factor 1) with coronary artery disease (CAD) and myocardial infarction (MI). Unlike CXCR4, the classical receptor for CXCL12, the function of CXCR7 (the most recently identified receptor) in vascular responses to injury and in MI remains unclear. METHODS: -Tissue expression of CXCR7 was examined in arteries from mice and humans...
February 2, 2017: Circulation
https://www.readbyqxmd.com/read/28151868/impact-of-betablockers-on-general-and-local-outcome-in-patients-hospitalized-for-lower-extremity-peripheral-artery-disease-the-copart-registry
#17
Tristan Mirault, Alexandre Galloula, Jean-Pierre Cambou, Philippe Lacroix, Victor Aboyans, Carine Boulon, Joel Constans, Alessandra Bura-Riviere, Emmanuel Messas
Lower extremity peripheral artery disease (PAD) is one manifestation of atherosclerosis. Patients with PAD have an increased rate of mortality due to concurrent coronary artery disease and hypertension. Betablockers (BB) may, therefore, be prescribed, especially in case of heart failure. However, BB safety in PAD is controversial, because of presumed peripheral hemodynamic consequences of BB that could lead to worsening of symptoms in patients with PAD. In this context, we aimed to determine the impact of BB on all-cause and cardiovascular mortality and amputation rate at 1 year after hospitalization for PAD from the COPART Registry population...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28139456/primary-angioplasty-effect-of-deferred-stenting-on-stent-size
#18
Brahim Harbaoui, Philippe Emsellem, Emmanuel Cassar, Cyril Besnard, Raphael Dauphin, Pascal Motreff, Pierre-Yves Courand, Pierre Lantelme
BACKGROUND: Primary angioplasty with immediate stenting (IS) is the gold standard for ST-segment elevation myocardial infarction (STEMI). Deferred stenting (DS) has been proposed to limit periprocedural complications, and may influence stent size because of thrombus and spasm alleviation. AIM: We sought to study the effect of DS on stent size. METHODS: Over the study period, 258 patients underwent primary angioplasty for STEMI (DS, n=84; IS, n=174)...
January 27, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28133467/application-of-drug-coated-balloon-in-coronary-artery-intervention-challenges-and-opportunities
#19
REVIEW
Lei Gao, Yun-Dai Chen
In recent decades, the outcomes of coronary heart disease (CHD) have markedly improved, which can be partly attributed to the use of novel drugs (especially statins and antiplatelet drugs) and partly to the evolution of percutaneous coronary intervention (PCI). From percutaneous transluminal coronary angioplasty to bare-metal stent and then to drug-eluting stent, every step of PCI is attractive to interventional cardiologist, great progress has been made for patients with CHD. In the past few years, some successor devices for treating CHD have emerged...
November 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28126156/syntax-score-and-long-term%C3%A2-outcomes-the-bari-2d-trial
#20
Fumiaki Ikeno, Maria Mori Brooks, Kaori Nakagawa, Min-Kyu Kim, Hideaki Kaneda, Yoshiaki Mitsutake, Helen A Vlachos, Leonard Schwartz, Robert L Frye, Sheryl F Kelsey, Katsuhisa Waseda, Mark A Hlatky
BACKGROUND: The extent of coronary disease affects clinical outcomes and may predict the effectiveness of coronary revascularization with either coronary artery bypass graft (CABG) surgery or percutaneous coronary intervention (PCI). The SYNTAX (Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery) score quantifies the extent of coronary disease. OBJECTIVES: This study sought to determine whether SYNTAX scores predicted outcomes and the effectiveness of coronary revascularization compared with medical therapy in the BARI-2D (Bypass Angioplasty Revascularization Investigation 2 Diabetes) trial...
January 31, 2017: Journal of the American College of Cardiology
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