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Left main coronary artery

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https://www.readbyqxmd.com/read/29052801/coronary-flow-response-to-remote-ischemic-preconditioning-is-preserved-in-old-cardiac-patients
#1
Elpidio Santillo, Monica Migale, Fabrizio Balestrini, Demetrio Postacchini, Silvia Bustacchini, Fabrizia Lattanzio, Raffaele Antonelli-Incalzi
BACKGROUND: The effect of remote ischemic preconditioning (RIPC) on coronary flow in elderly cardiac patients has not been investigated yet. Thus, we aimed to study the change of coronary flow subsequent to RIPC in old patients with heart diseases and to identify its main correlates. METHODS: Ninety-five elderly patients (aged ≥ 65 years) accessing cardiac rehabilitation ward underwent transthoracic ultrasound evaluation of peak diastolic flow velocity of left anterior descending artery...
October 20, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29052105/impact-of-previous-drug-eluting-stent-restenosis-in-non-left-main-coronary-artery-lesions-on-long-term-outcomes-after-left-main-coronary-artery-stenting-an-observation-from-the-aoi-lmca-registry
#2
Hirooki Higami, Mamoru Toyofuku, Takeshi Morimoto, Masanobu Ohya, Yasushi Fuku, Kyohei Yamaji, Hiromi Muranishi, Yuhei Yamaji, Koji Nishida, Daisuke Furukawa, Tomohisa Tada, Euihong Ko, Kenji Ando, Hiroki Sakamoto, Takashi Tamura, Kazuya Kawai, Kazushige Kadota, Takeshi Kimura
We hypothesized that patients who had previous target-lesion revascularization (TLR) for DES restenosis in non-left main coronary artery (LMCA) lesions might have a higher risk for restenosis after subsequent DES implantation for a de novo unprotected LMCA lesion. Among 1809 patients enrolled in the Assessing Optimal Percutaneous Coronary Intervention for LMCA (AOI-LMCA) registry, which is a retrospective 6-centre registry of consecutive patients undergoing LMCA stenting in Japan, 251 patients with previous DES implantation for non-LMCA lesions were subdivided into the 2 groups with (N = 56) or without (N = 195) previous TLR in non-LMCA lesions...
October 19, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/29050805/modelling-of-thrombin-generation-under-flow-in-realistic-left-anterior-descending-geometries
#3
Konstantinos P Papadopoulos, Grigoris T Gerotziafas, Manolis Gavaises
Currently there are no available methods for prediction of thrombotic complications in Coronary Artery disease. Additionally, blood coagulation tests are mainly performed in a steady system while coagulation in vivo occurs under flow conditions. In this work, a phenomenological model for coagulation up-to thrombin generation is proposed; the model is mainly based on the results of thrombin generation assays and therefore it can account for the variation of the coagulability that is observed in different individuals...
October 16, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29049817/long-term-patency-of-on-and-off-pump-coronary-artery-bypass-grafting-with-bilateral-internal-thoracic-arteries-the-significance-of-late-string-sign-development-in-the-off-pump-technique
#4
Yasunari Hayashi, Atsuo Maekawa, Sadanari Sawaki, Masayoshi Tokoro, Junji Yanagisawa, Takahiro Ozeki, Akihiko Usui, Toshiaki Ito
OBJECTIVES: This study aimed to examine the effect of off-pump coronary artery bypass grafting (CABG) in patients who underwent revascularization with bilateral internal thoracic arteries (ITAs). METHODS: Between January 2000 and December 2014, 499 patients underwent isolated CABG with bilateral ITAs for complete revascularization of the left coronary system at our institution. On-pump CABG was performed in 137 patients, and off-pump CABG was performed in 362 patients...
July 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049458/long-term-outcomes-of-multiple-arterial-coronary-artery-bypass-grafting-a-population-based-study-of-patients-in-british-columbia-canada
#5
Aihua Pu, Lillian Ding, Jungwon Shin, Joel Price, Peter Skarsgard, Daniel R Wong, John Bozinovski, Guy Fradet, James G Abel
Importance: Although the long-term survival advantage of multiple arterial grafting (MAG) vs the standard use of left internal thoracic artery (LITA) supplemented by saphenous vein grafts (LITA+SVG) has been demonstrated in several observational studies, to our knowledge its safety and other long-term clinical benefits in a large, population-based cohort are unknown. Objective: To compare the safety and long-term outcomes of MAG vs LITA+SVG among overall and selected subgroups of patients...
October 11, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/29045589/standardization-of-adult-transthoracic-echocardiography-reporting-in-agreement-with-recent-chamber-quantification-diastolic-function-and-heart-valve-disease-recommendations-an-expert-consensus-document-of-the-european-association-of-cardiovascular-imaging
#6
Maurizio Galderisi, Bernard Cosyns, Thor Edvardsen, Nuno Cardim, Victoria Delgado, Giovanni Di Salvo, Erwan Donal, Leyla Elif Sade, Laura Ernande, Madalina Garbi, Julia Grapsa, Andreas Hagendorff, Otto Kamp, Julien Magne, Ciro Santoro, Alexandros Stefanidis, Patrizio Lancellotti, Bogdan Popescu, Gilbert Habib
Aims: This European Association Cardiovascular Imaging (EACVI) Expert Consensus document aims at defining the main quantitative information on cardiac structure and function that needs to be included in standard echocardiographic report following recent ASE/EACVI chamber quantification, diastolic function, and heart valve disease recommendations. The document focuses on general reporting and specific pathological conditions such as heart failure, coronary artery and valvular heart disease, cardiomyopathies, and systemic diseases...
October 17, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29044562/myocardial-bridging-a-meta-analysis-of-prevalence
#7
Sorin Hostiuc, Ionuț Negoi, Mugurel C Rusu, Mihaela Hostiuc
The main objective of this article was to analyze prevalence data about myocardial bridging (MB) in published studies. To this purpose, we performed a meta-analysis of studies published in English literature that contained data about the prevalence of MB and its anatomical characteristics. The overall prevalence was 19% (CI: 17-21%); autopsy studies revealed an overall prevalence of 42% (CI: 30-55%), CT studies 22% (CI: 18-25%), and coronary angiography 6% (CI: 5-8%). Most bridges were located on the left anterior descending artery (82% overall, 63% on autopsy studies), had a mean thickness of 2...
October 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29038408/-aortitis-syndrome-requiring-redo-bentall-procedure-with-coronary-artery-bypass-grafting-due-to-graft-detachment-report-of-a-case
#8
Masami Sotokawa, Hideyuki Tomioka, Takashi Azuma, Shigeyuki Aomi, Kenji Yamazaki
A 53-year-old woman was referred to us for reoperation of aortic root. Twenty-three years ago, she was diagnosed with aortitis and suffered from annuloaortic ectasia, aortic regurgitation, severe stenosis of left carotid and subclavian arteries and occulusion of the main trunk of left coronary artery. The left coronary system was perfused by collateral arteries from right coronary artery. She had undergone original Bentall procedure( Cooley graft 26 mm+SJM valve 25 mm) with coronary artery bypass grafting (CABG)[saphenous vein graft (SVG)-left anterior descending artery (LAD)]...
October 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29036433/left-ventricular-hypertrophy-predicts-cardiovascular-events-in-hypertensive-patients-with-coronary-artery-calcifications
#9
Chagai Grossman, Michael Levin, Nira Koren-Morag, Gill Bornstein, Avshalom Leibowitz, Ilan Ben-Zvi, Joseph Shemesh, Ehud Grossman
Background: Coronary artery calcification (CAC) is associated with increased cardiovascular (CV) risk. Left ventricular hypertrophy (LVH) is an independent risk factor for CV events. Our aim was to estimate the relative CV risk of LVH in the presence of CAC. Methods: We included asymptomatic hypertensive patients who were enrolled in the calcification arm of the INSIGHT (International Nifedipine Study Intervention as Goal for Hypertension Therapy). Patients had baseline echocardiography and computed tomography (CT) to assess CAC...
October 5, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/29033517/alcapa-syndrome-and-atrial-septal-defect-in-a-68-year-old-woman-an-extremely-rare-congenital-association
#10
Tayyar Cankurt, Burak Acar, Selahattin Aydın, Orhan Maden
Anomalous left coronary artery arising from the pulmonary artery (ALCAPA) has been generally reported as an isolated lesion that is also called Bland-White-Garland syndrome. Herein we report a case of ALCAPA syndrome with an atrial septal defect in a 68-year-old woman. She had been asymptomatic until the age of 68. Echocardiographic examination revealed atrial septal defect, and coronary angiography showed that the left main coronary artery originated from the pulmonary artery and intensive collateral connections between the right and left coronary artery...
July 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29031580/prevalence-and-characteristics-of-coronary-artery-disease-in-heart-failure-with-preserved-and-mid-range-ejection-fractions-a-systematic-angiography-approach
#11
Lory Trevisan, Jennifer Cautela, Noemie Resseguier, Marc Laine, Stephane Arques, Johan Pinto, Morgane Orabona, Jeremie Barraud, Michael Peyrol, Franck Paganelli, Laurent Bonello, Franck Thuny
BACKGROUND: Guidelines recommend careful screening and treatment of coronary artery disease (CAD) in heart failure with preserved or mid-range ejection fraction (HFpEF/HFmEF). AIM: We aimed to determine the prevalence and characteristics of CAD using a prospective systematic coronary angiography approach. METHODS: A systematic coronary angiography protocol was applied in consecutive patients admitted for HFpEF/HFmEF during a 6-month period in a single centre...
October 11, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29029526/percutaneous-coronary-intervention-using-drug-eluting-stents-versus-coronary-artery-bypass-graft-surgery-in-left-main-coronary-artery-disease-an-updated-meta-analysis-of-randomized-clinical-trials
#12
Lei Gao, Yuqi Liu, Zhijun Sun, Yabin Wang, Feng Cao, Yundai Chen
OBJECTIVES: To compare the safety and efficacy of percutaneous coronary intervention (PCI) using drug-eluting stent (DES) and coronary artery bypass graft (CABG) for the treatment of left main coronary artery (LMCA) disease. BACKGROUND: Several new randomized trials have recently examined the clinical outcomes of PCI and CABG in LMCA disease. However, the results of these studies were inconsistent. MATERIALS AND METHODS: We searched five online electronic databases to identify all the randomized clinical trials assessing the outcomes of PCI using DES and CABG in patients with LMCA...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29029074/multimodality-imaging-evaluation-of-chagas-disease-an-expert-consensus-of-brazilian-cardiovascular-imaging-department-dic-and-the-european-association-of-cardiovascular-imaging-eacvi
#13
Maria Carmo P Nunes, Luigi Paolo Badano, J Antonio Marin-Neto, Thor Edvardsen, Covadonga Fernández-Golfín, Chiara Bucciarelli-Ducci, Bogdan A Popescu, Richard Underwood, Gilbert Habib, Jose Luis Zamorano, Roberto Magalhães Saraiva, Ester Cerdeira Sabino, Fernando A Botoni, Márcia Melo Barbosa, Marcio Vinicius L Barros, Eduardo Falqueto, Marcus Vinicius Simões, André Schmidt, Carlos Eduardo Rochitte, Manoel Otávio Costa Rocha, Antonio Luiz Pinho Ribeiro, Patrizio Lancellotti
Aims: To develop a document by Brazilian Cardiovascular Imaging Department (DIC) and the European Association of Cardiovascular Imaging (EACVI) to review and summarize the most recent evidences about the non-invasive assessment of patients with Chagas disease, with the intent to set up a framework for standardized cardiovascular imaging to assess cardiovascular morphologic and functional disturbances, as well as to guide the subsequent process of clinical decision-making. Methods and results: Chagas disease remains one of the most prevalent infectious diseases in Latin America, and has become a health problem in non-endemic countries...
September 25, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29027271/surgical-treatment-of-coronary-artery-aneurysms
#14
Erik Beckmann, Saad Rustum, Steffen Marquardt, Constanze Merz, Malakh Shrestha, Andreas Martens, Axel Haverich, Issam Ismail
INTRODUCTION: Coronary artery aneurysms (CAA) are rare. We present our experience with the surgical treatment of patients with CAAs. METHODS: Between March 2000 and October 2016, 15 patients with CAA underwent surgery. RESULTS: Mean age of patients was 60 ± 16 years and 47% (n = 7) were male. Kawasaki syndrome was present in two (13%) patients and 7% (n = 1) patients had Marfan syndrome. Isolated CAAs were found in 73% (n = 11) and involvement of multiple vessels was present in 27% (n = 4) of patients...
October 13, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29026414/acute-myocardial-infarction-in-very-young-adults-a-clinical-presentation-risk-factors-hospital-outcome-index-and-their-angiographic-characteristics-in-north-india-amiya-study
#15
Santosh Kumar Sinha, Vinay Krishna, Ramesh Thakur, Ashutosh Kumar, Vikas Mishra, Mukesh Jitendra Jha, Karandeep Singh, Mohit Sachan, Rupesh Sinha, Mohammad Asif, Nasar Afdaali, Chandra Mohan Varma
BACKGROUND: India is currently in the fourth stage of epidemiological transitions where cardiovascular disease is the leading cause of mortality and morbidity. Purpose of the present study was to assess the risk factors, clinical presentation, angiographic profile including severity, and in-hospital outcome of very young adults (aged ≤ 30 years) with first acute myocardial infarction (AMI). METHODS: Total of 1,116 consecutive patients with ST-segment elevation acute myocardial infarction (STEMI) were studied between March 2013 and February 2015 at LPS Institute of Cardiology, Kanpur, Uttar Pradesh, India...
March 2017: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/29024685/cardiac-pathologic-findings-in-three-unusual-cases-of-sudden-cardiac-death-related-to-anorexiant-drugs
#16
Ornella Leone, Valentina Agostini, Alberto Foà, Bruna Cerbelli, Cira Rosaria Tiziana di Gioia, Mariarosaria Aromatario, Costantino Ciallella, Joaquin Lucena, Giulia d'Amati
Amphetamine congeners can be prescribed as anorexiant drugs, despite their potential side effects, including cardiac toxicity. However, the morphologic features of cardiac damage related to protracted use of these compounds are unknown. We provide a detailed description of cardiac autopsy findings in three cases of sudden death associated with protracted use of high-doses of phendimetrazine and/or phenylpropanolamine or bupropion prescribed as anorexiants, in association with other compounds. The main cardiac findings were similar in all three cases: i) mild-moderate hypertrophy of the left ventricle and/or the septum; ii) myocardial non-ischemic scarring (mid-mural and/or sub-epicardial) appearing as discrete foci or with a band/like morphology; iii) mild-moderate intramural small vessel disease, in absence of significant epicardial coronary artery stenosis; iv) acute/recent inflammatory lesions consistent with toxic myocarditis...
October 9, 2017: Human Pathology
https://www.readbyqxmd.com/read/29020103/morphometry-of-the-coronary-ostia-and-the-structure-of-coronary-arteries-in-the-shorthair-domestic-cat
#17
Karolina Barszcz, Marta Kupczyńska, Michał Polguj, Joanna Klećkowska-Nawrot, Maciej Janeczek, Karolina Goździewska-Harłajczuk, Małgorzata Dzierzęcka, Paweł Janczyk
The aim of this study was to measure the area of the coronary ostia, assess their localization in the coronary sinuses and to determine the morphology of the stem of the left and right coronary arteries in the domestic shorthair cat. The study was conducted on 100 hearts of domestic shorthair cats of both sexes, aged 2-18 years, with an average body weight of 4.05 kg. A morphometric analysis of the coronary ostia was carried out on 52 hearts. The remaining 48 hearts were injected with a casting material in order to carry out a morphological assessment of the left and right coronary arteries...
2017: PloS One
https://www.readbyqxmd.com/read/29019879/percutaneous-coronary-intervention-versus-cardiac-bypass-surgery-for-left-main-coronary-artery-disease-a-trial-sequential-analysis
#18
Yicong Ye, Ming Yang, Shuyang Zhang, Yong Zeng
BACKGROUND: Several updated meta-analyses comparing percutaneous coronary intervention (PCI) with coronary artery bypass grafting (CABG) for left main coronary artery disease (LM CAD) have been published recently. However, the risk of false-positive results could be high in conventional updated meta-analyses due to repetitive testing of accumulating data. Therefore, we compared these treatment approaches via trial sequential analysis (TSA). METHODS: The MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases were searched for published randomized controlled trials (RCTs) or subgroups of RCTs comparing PCI and CABG in patients with LM CAD...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29019045/the-characteristics-of-coronary-stenosis-in-11-267-patients-from-southwest-china-a-retrospective-study
#19
Zhao Yin, Chunyu Zeng, Xiaoqun Zhang, Chengming Yang, Hongyong Wang, Wenxing Song, Xu Wang, Chunjiang Fu, Weibin Shi, Yuqiang Fang
The characteristics of coronary stenosis vary among the different countries or areas. 11,267 patients who have undergone coronary angiography (CAG) from three Southwest China hospitals were investigated. Patient characteristics, coronary stenosis and stent-implant information were recorded and analyzed according to two criteria: "visible stenosis" and "≥ 50% stenosis". The patients who have undergone CAG increased year by year, with patients from 60 to 69 years-old taking the highest ratio (34.69%). Based on the "≥ 50% stenosis" criteria, the stenotic frequency was 40...
October 10, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29016382/myocardial-bridging-in-left-main-coronary-artery
#20
Rong Xu, Yong He, Lin-Jun Xie, Meng-Xi Yang, Zhi-Gang Yang, Ying-Kun Guo
No abstract text is available yet for this article.
October 9, 2017: Coronary Artery Disease
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