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Left main coronary artery

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https://www.readbyqxmd.com/read/27910301/minimalist-immediate-mechanical-intervention-approach-in-the-management-of-an-acute-proximal-left-anterior-descending-artery-occlusion-with-extensive-thrombus-burden-in-the-left-main-coronary-artery
#1
Laura Cetran, Frédéric Casassus, Guillermo J Tearney, Benjamin Seguy, Pierre Poustis, Pierre Coste, Edouard Gerbaud
No abstract text is available yet for this article.
February 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27900323/unexpected-dual-left-anterior-descending-artery-as-a-source-of-percutaneous-coronary-revascularization-failure
#2
Steven D Hajdu, Salah D Qanadli
Dual left anterior descending artery (LAD) is rare. A 61-year-old patient was referred because of angina and a positive stress test. Coronary angiography revealed a short LAD originating from the left main coronary artery. Computed tomography showed a long LAD originating above the right coronary artery sinus.
2016: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27899408/percutaneous-coronary-intervention-using-drug-eluting-stents-versus-coronary-artery-bypass-grafting-for-unprotected-left-main-coronary-artery-stenosis-a-meta-analysis-of-randomized-trials
#3
Nitesh Nerlekar, Francis J Ha, Kunal P Verma, Martin R Bennett, James D Cameron, Ian T Meredith, Adam J Brown
BACKGROUND: Current guidelines suggest that coronary artery bypass grafting (CABG) should be the preferred revascularization method for unprotected left main coronary artery stenosis. In light of evidence from recent randomized trials, we assessed whether percutaneous coronary intervention (PCI) using drug-eluting stents is as safe and effective as CABG for the treatment of unprotected left main coronary artery disease. METHODS AND RESULTS: Digital databases and manual searches were performed for randomized trials comparing PCI and CABG for unprotected left main coronary artery stenosis...
December 2016: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27899140/transapical-transcatheter-aortic-valve-replacement-in-patients-with-or-without-prior-coronary-artery-bypass-graft-operation
#4
Konstantinos V Voudris, S Chiu Wong, Ryan Kaple, Polydoros N Kampaktsis, Andreas R de Biasi, Jonathan S Weiss, Richard Devereux, Karl Krieger, Luke Kim, Rajesh V Swaminathan, Dmitriy N Feldman, Harsimran Singh, Nikolaos J Skubas, Robert M Minutello, Geoffrey Bergman, Arash Salemi
BACKGROUND: Transapical approach (TA) is an established access alternative to the transfemoral technique in patients undergoing transcatheter aortic valve replacement (TAVR) for treatment of symptomatic aortic valve stenosis. The impact of prior coronary artery bypass grafting (CABG) on clinical outcomes in patients undergoing TA-TAVR is not well defined. METHODS: A single center retrospective cohort analysis of 126 patients (male 41%, mean age 85.8 ± 6.1 years) who underwent TA balloon expandable TAVR (Edwards SAPIEN, SAPIEN XT or SAPIEN 3) was performed...
November 29, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27891374/effect-of-enhanced-external-counter-pulsation-treatment-on-aortic-blood-pressure-arterial-stiffness-and-ejection-fraction-in-patients-with-coronary-artery-disease
#5
Ramasamy Subramanian, Sushma Nayar, Chokkalingam Meyyappan, N Ganesh, Arumugam Chandrakasu, Pradeep G Nayar
INTRODUCTION: Enhanced External Counter Pulsation (EECP) is a non-invasive treatment option for patients with Coronary Artery Disease (CAD). The treatment has shown to augment diastolic pressure and reduce Left Ventricular (LV) after-load by reducing systemic vascular resistance. The effect of EECP in standard brachial blood pressure and central haemodynamic parameters are not known. AIM: We hypothesized that EECP may have differential effect in CAD patients with low systolic blood pressure when compared to normal systolic pressure and the mechanism underlying this differential effect may be due to improvement in LV function...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27887688/long-term-outcomes-after-stent-implantation-for-left-main-coronary-artery-from-the-multicenter-assessing-optimal-percutaneous-coronary-intervention-for-left-main-coronary-artery-stenting-registry
#6
Masanobu Ohya, Kazushige Kadota, Mamoru Toyofuku, Takeshi Morimoto, Hirooki Higami, Yasushi Fuku, Kyohei Yamaji, Hiromi Muranishi, Yuhei Yamaji, Koji Nishida, Daisuke Furukawa, Tomohisa Tada, Euihong Ko, Kenji Ando, Hiroki Sakamoto, Takashi Tamura, Kazuya Kawai, Takeshi Kimura
We assessed long-term outcomes after left main coronary artery (LMCA) stenting based on lesion types and stenting strategies. In the Assessing Optimal percutaneous coronary Intervention for Left Main Coronary Artery stenting registry, we evaluated 1,607 consecutive patients undergoing stent implantation for unprotected LMCA lesions (bifurcation lesions: n = 1318 and nonbifurcation lesions: n = 289). Among the bifurcation lesions, 1,281 lesions were treated with stenting across the bifurcation (bifurcation 1-stent strategy: n = 999 or bifurcation 2-stent strategy: n = 282)...
October 31, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27887648/the-potential-hazard-of-drug-eluting-stent-induced-coronary-vasospasm-causing-subacute-stent-thrombosis-a-case-report
#7
Hiroki Shibutani, Yuzo Akita, Yumie Matsui, Masahiro Yoshinaga, Masahiro Karakawa
BACKGROUND: Drug-eluting stent (DES) -induced coronary vasospasm is a well known phenomenon after stent implantation; however, the extent of this risk is still unknown. We report a case in which DES-induced severe coronary vasospasm was clinically suspected as a cause of subacute stent thrombosis (ST). CASE PRESENTATION: A 67-year-old man came to our hospital due to chest pain with mild exercise. He was diagnosed with effort angina by coronary angiography and underwent DES implantation in the mid-left ascending artery (LAD) after the administration of dual anti-platelet therapy...
November 25, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27884354/computing-methods-for-composite-clinical%C3%A2-endpoints-in-unprotected-left-main-coronary-artery-revascularization-a-post-hoc-analysis-of-the-delta-registry
#8
Davide Capodanno, Giuseppe Gargiulo, Sergio Buccheri, Alaide Chieffo, Emanuele Meliga, Azeem Latib, Seung-Jung Park, Yoshinobu Onuma, Piera Capranzano, Marco Valgimigli, Inga Narbute, Raj R Makkar, Igor F Palacios, Young-Hak Kim, Pawel E Buszman, Tarun Chakravarty, Imad Sheiban, Roxana Mehran, Christoph Naber, Ronan Margey, Arvind Agnihotri, Sebastiano Marra, Martin B Leon, Jeffrey W Moses, Jean Fajadet, Thierry Lefèvre, Marie-Claude Morice, Andrejs Erglis, Ottavio Alfieri, Patrick W Serruys, Antonio Colombo, Corrado Tamburino
OBJECTIVES: The study sought to investigate the impact of different computing methods for composite endpoints other than time-to-event (TTE) statistics in a large, multicenter registry of unprotected left main coronary artery (ULMCA) disease. BACKGROUND: TTE statistics for composite outcome measures used in ULMCA studies consider only the first event, and all the contributory outcomes are handled as if of equal importance. METHODS: The TTE, Andersen-Gill, win ratio (WR), competing risk, and weighted composite endpoint (WCE) computing methods were applied to ULMCA patients revascularized by percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) at 14 international centers...
November 28, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27880927/very-low-risk-st-segment-elevation-myocardial-infarction-it-exists-and-may-be-easily-identified
#9
Felipe Díez-Delhoyo, María Jesús Valero-Masa, Jesús Velásquez-Rodríguez, Carolina Devesa-Cordero, Iago Sousa-Casasnovas, Miriam Juárez, Rocío Angulo-Llanos, Francisco Fernández-Avilés, Manuel Martínez-Sellés
BACKGROUND: Early discharge protocols have been proposed for ST-segment elevation myocardial infarction (STEMI) low risk patients despite the existence of few but significant cardiovascular events during mid-term follow-up. We aimed to identify a subgroup of patients among those considered low-risk in which prognosis would be particularly good. METHODS: We analyzed 30-day outcomes and long-term follow-up among 1.111 STEMI patients treated with reperfusion therapy...
November 17, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27878406/diagnostic-value-of-layer-specific-global-longitudinal-strain-during-adenosine-stress-in-patients-suspected-of-coronary-artery-disease
#10
June A Ejlersen, Steen H Poulsen, Jesper Mortensen, Ole May
Speckle tracking global longitudinal strain (GLS) from dobutamine stress echocardiography (SE) predicts coronary artery disease (CAD). The diagnostic value of GLS from vasodilator SE and the additional value of layer-specific speckle tracking analysis are unclear. We explored the usefulness of layer-specific GLS and non-layer-specific strain (automated functional imaging, AFI) from adenosine SE. The included 132 patients (67% male, 62.6 (9.0) years), of which 46 (35%) had CAD defined as ≥1 stenosis ≥70% (≥50% in the left main), underwent adenosine SE and invasive coronary angiography...
November 22, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27871628/updated-evidence-for-left-main-coronary-artery-disease-practice-versus-the-consensus
#11
EDITORIAL
Zhe Zheng, Heng Zhang, Bo Xu
No abstract text is available yet for this article.
October 28, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27867541/percutaneous-coronary-intervention-versus-bypass-grafting-in-left-main-coronary-artery-disease
#12
EDITORIAL
Stine Munkholm-Larsen, Tristan D Yan
No abstract text is available yet for this article.
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27866931/key-role-of-endothelium-in-the-enos-dependent-cardioprotection-with-exercise-training
#13
C Farah, A Nascimento, G Bolea, G Meyer, S Gayrard, A Lacampagne, O Cazorla, C Reboul
Modulation of endothelial nitric oxide synthase (eNOS) activation is recognized as a main trigger of the cardioprotective effects of exercise training on heart vulnerability to ischemia-reperfusion (IR). However, this enzyme is expressed both in coronary endothelial cells and cardiomyocytes and the contribution of each one to such cardioprotection has never been challenged. The aim of this study was to investigate the role of eNOS from the cardiomyocytes vs. the endothelium in the exercise cardioprotection...
November 17, 2016: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/27866849/inter-observer-variation-in-delineating-the-coronary-arteries-as-organs-at-risk
#14
Anna-Karin Wennstig, Hans Garmo, Per Hållström, Petra Witt Nyström, Per Edlund, Carl Blomqvist, Malin Sund, Greger Nilsson
PURPOSE: To determine the inter-observer variation in delineating the coronary arteries as organs at risk (OAR) in breast cancer (BC) radiotherapy (RT) and how this variation affects the estimated coronary artery radiation dose. METHOD: Delineation of the left main and the left anterior descending coronary artery (LMCA and LAD), and the right coronary artery (RCA), by using the heart atlas by Feng et al., was performed by three radiation oncologists in 32 women who had received adjuvant RT for BC...
November 17, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27863365/preoperative-evaluation-of-coronary-artery-fistula-using-dual-source-computed-tomography
#15
Ke Shi, Hong-Ling Gao, Zhi-Gang Yang, Qin Zhang, Xi Liu, Ying-Kun Guo
OBJECTIVES: To evaluate the efficacy of dual-source computed tomography (DSCT) in assessing the morphological features, quantitative features, and associated coronary artery lesions among patients with coronary artery fistula (CAF) before surgery. METHODS: We enrolled 34 patients with CAF that were morphologically and quantitatively analyzed by DSCT and compared the analyses with surgical results (reference standard). The associated coronary artery lesions were also assessed...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27863290/cardiorenal-acute-kidney-injury-epidemiology-presentation-causes-pathophysiology-and-treatment
#16
REVIEW
Luca Di Lullo, Antonio Bellasi, Domenico Russo, Mario Cozzolino, Claudio Ronco
Cardiovascular disease and major cardiovascular events represent main cause of death in both acute and chronic kidney disease patients. Kidney and heart failure are common and frequently co-exist; this organ - organ interaction, also called organ cross-talk led to well-known definition of cardiorenal syndrome (CRS). Here we'll describe cardiovascular involvement in patients with acute kidney injury (AKI). Also known as type-3 CRS or acute reno-cardiac CRS, it occurs when AKI contributes and/or precipitates development of acute cardiac injury...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27853160/coronary-artery-disease-cabg-surgery-or-pci-for-left-main-cad
#17
Irene Fernández-Ruiz
No abstract text is available yet for this article.
November 17, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27833782/telescoping-technique-to-engage-left-main-coronary-artery-in-a-case-of-giant-aortic-aneurysm-in-a-geriatric-patient
#18
Priyank Shah, Rahul Vasudev, Mahesh Bikkina, Hartaj Virk
We present a case of a geriatric male with giant ascending aortic aneurysm (AAA) who underwent successful coronary angiography using telescoping technique for evaluation his coronary arteries before surgery for AAA. Since the ascending aorta and root were extremely dilated, we knew it would not have been possible to engage the coronaries using regular catheters and standard technique. Hence, telescopic technique was used. Amplatz left 3 (AL3) 7F (French) guide catheter (90 cm) was initially used, and nonselective injection of contrast was done to see the coronary ostium...
2016: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/27829641/arterial-stiffness-is-significantly-associated-with-left-ventricular-diastolic-dysfunction-in-patients-with-cardiovascular-disease
#19
Takayuki Namba, Nobuyuki Masaki, Yuki Matsuo, Atsushi Sato, Toyokazu Kimura, Shunpei Horii, Risako Yasuda, Hirotaka Yada, Akio Kawamura, Bonpei Takase, Takeshi Adachi
Left ventricular (LV) diastolic dysfunction is considered the main cause of heart failure with preserved ejection fraction (HFpEF). There have been few reports on the correlation between LV diastolic dysfunction and arterial stiffness in patients with clinical cardiovascular disease.This cross-sectional study enrolled 100 patients (67 men, 33 women; mean age, 70 years). All participants were diagnosed with cardiovascular disease. A total of 89 (89%) patients had coronary artery disease or HF. Patients with reduced EF and valvular disease were excluded...
November 9, 2016: International Heart Journal
https://www.readbyqxmd.com/read/27829638/comparison-of-percutaneous-coronary-intervention-versus-coronary-artery-bypass-graft-in-aged-patients-with-unprotected-left-main-artery-lesions
#20
Zhonghai Wei, Jun Xie, Kun Wang, Lina Kang, Qing Dai, Jian Bai, Biao Xu
There is still much debate about revascularization strategies in aged patients with unprotected left main coronary artery (UPLM) lesions. This study compared the outcomes of percutaneous coronary intervention (PCI) versus coronary artery bypass graft (CABG) in this population.A total of 126 patients older than 60 years of age with LM lesions who underwent revascularization in our hospital from January 2012 to December 2013 were followed up for an average of 15.2 months. The cumulative incidence of major adverse cardiac and cerebral events (MACCE) was estimated by Kaplan-Meier plots...
November 9, 2016: International Heart Journal
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