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Left main coronary artery disease

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https://www.readbyqxmd.com/read/28822520/coronary-artery-dimensions-in-normal-indians
#1
Barendra Kumar Raut, Vijaysinh Namdeo Patil, George Cherian
BACKGROUND: Diameter of coronary artery is an important predictor of outcome after percutaneous coronary interventions and coronary artery bypass graft surgery. There is very limited data available about coronary artery dimensions in an Indian population. AIMS: To study the normal dimensions of the coronary artery segments in Indians without coronary artery disease by using quantitative coronary angiography and also to compare the dimensions in Indians with Western...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28811999/quantitative-analysis-of-epicardial-fat-volume-effects-of-scanning-protocol-and-reproducibility-of-measurements-in-non-contrast-cardiac-ct-vs-coronary-ct-angiography
#2
Luigia D'Errico, Francesco Salituri, Marco Ciardetti, Riccardo Favilla, Alessandro Mazzarisi, Giuseppe Coppini, Carlo Bartolozzi, Paoli Marraccini
BACKGROUND: Several studies have focused on the role of epicardial fat in the pathogenesis of cardiovascular disease (CVD). The main purpose of the study was to evaluate a computerized method for the quantitative analysis of epicardial fat volume (EFV) by non-contrast cardiac CT (NCT) for coronary calcium scan and coronary CT angiography (coronary CTA). METHODS: Thirty patients (61±12.5 years, 73% male, body mass index (BMI) =25.9±6.3 kg/m(2)) referred to our Institution for suspected coronary artery disease (CAD) underwent NCT and coronary CTA...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28808947/the-sydney-heart-bank-improving-translational-research-while-eliminating-or-reducing-the-use-of-animal-models-of-human-heart-disease
#3
REVIEW
C G Dos Remedios, S P Lal, A Li, J McNamara, A Keogh, P S Macdonald, R Cooke, E Ehler, R Knöll, S B Marston, J Stelzer, H Granzier, C Bezzina, S van Dijk, F De Man, G J M Stienen, J Odeberg, F Pontén, W Linke, J van der Velden
The Sydney Heart Bank (SHB) is one of the largest human heart tissue banks in existence. Its mission is to provide high-quality human heart tissue for research into the molecular basis of human heart failure by working collaboratively with experts in this field. We argue that, by comparing tissues from failing human hearts with age-matched non-failing healthy donor hearts, the results will be more relevant than research using animal models, particularly if their physiology is very different from humans. Tissue from heart surgery must generally be used soon after collection or it significantly deteriorates...
August 14, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28799701/drug-eluting-stents-versus-coronary-artery-bypass-grafting-for-left-main-coronary-artery-disease
#4
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/28795296/current-trends-in-selection-of-conduits-for-coronary-artery-bypass-grafting
#5
REVIEW
Thierry Carrel, Bernhard Winkler
The procedure of coronary artery bypass grafting continues to be the "gold standard" for patients with multivessel coronary artery disease and left main stenosis due to favourable long-term and consistent outcomes despite the advent of new generations of stents. But the targeted better long-term outcome of surgical revascularization over percutaneous interventions depends on several variables and aspects; one of them is the choice of conduits used to bypass the stenosed arteries. Coronary artery bypass surgery has been studied and debated for decades and the same applies to the selection of grafts...
August 9, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28790123/prognostic-significance-of-nonobstructive-left-main-coronary-artery-disease-in-women-versus-men-long-term-outcomes-from-the-confirm-coronary-ct-angiography-evaluation-for-clinical-outcomes-an-international-multicenter-registry
#6
Joe X Xie, Parham Eshtehardi, Tina Varghese, Abhinav Goyal, Puja K Mehta, William Kang, Jonathon Leipsic, Bríain Ó Hartaigh, C Noel Bairey Merz, Daniel S Berman, Heidi Gransar, Matthew J Budoff, Stephan Achenbach, Tracy Q Callister, Hugo Marques, Ronen Rubinshtein, Mouaz H Al-Mallah, Daniele Andreini, Gianluca Pontone, Filippo Cademartiri, Erica Maffei, Kavitha Chinnaiyan, Gilbert Raff, Martin Hadamitzky, Joerg Hausleiter, Gudrun Feuchtner, Philipp A Kaufmann, Todd C Villines, Benjamin J W Chow, James K Min, Leslee J Shaw
BACKGROUND: Patients with obstructive (≥50% stenosis) left main (LM) coronary artery disease (CAD) are at high risk for adverse events; prior studies have also documented worse outcomes among women than men with severe multivessel/LM CAD. However, the prognostic significance of nonobstructive (1%-49% stenosis) LM CAD, including sex-specific differences, has not been previously examined. METHODS AND RESULTS: In the long-term CONFIRM (Coronary CT Angiography Evaluation For Clinical Outcomes: An International Multicenter) registry, patients underwent elective coronary computed tomographic angiography for suspected CAD and were followed for 5 years...
August 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28789844/impact-of-coronary-artery-disease-in-patients-undergoing-transfemoral-transcatheter-aortic-valve-implantation
#7
Jasmin Shamekhi, Anja Stundl, Marcel Weber, Fritz Mellert, Armin Welz, Eberhard Grube, Georg Nickenig, Nikos Werner, Jan-Malte Sinning
BACKGROUND: The impact of coronary artery disease (CAD) and revascularization on outcome in patients undergoing transcatheter aortic valve implantation (TAVI) has not been fully elucidated so far. OBJECTIVES: To assess whether the degree of CAD influences the prognosis of patients undergoing TAVI. METHODS: Before TAVI, all patients underwent revascularization of the proximal vessels or the left main stem if indicated (stenosis ≥70% or 50%, respectively)...
July 25, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28779988/impact-of-polymorphism-rs7041-and-rs4588-of-vitamin-d-binding-protein-on-the-extent-of-coronary-artery-disease
#8
V Daffara, M Verdoia, R Rolla, M Nardin, P Marino, G Bellomo, A Carriero, G De Luca
BACKGROUND AND AIM: 25-hydroxyvitamin D deficiency represents a widespread social problem but also an emerging risk factor for cardiovascular disease. Genetic variants of the Vitamin D Binding Protein (VDBP), the main transporter of vitamin D in the bloodstream, have been shown to account for a significant variability in the levels and systemic effects of vitamin D. We investigated whether the single nucleotide polymorphisms, rs7041 and rs4588, of VDBP are associated to the prevalence and extent of coronary artery disease...
June 24, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28776266/impact-of-left-main-coronary-artery-disease-on-long-term-mortality-in-patients-undergoing-drug-eluting-stent-implantation
#9
Se Hun Kang, Cheol Whan Lee, Seunghee Baek, Pil Hyung Lee, Jung-Min Ahn, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Seong-Wook Park, Seung-Jung Park
BACKGROUND: Limited data are available on long-term mortality according to the extent of coronary artery disease (CAD) in patients undergoing percutaneous coronary intervention (PCI) with drug-eluting stent (DES). We assessed long-term mortality DES implantation according to the extent of CAD and the impact of left main CAD alone on mortality among patients undergoing PCI with DES. METHODS AND RESULTS: A total of 18,716 patients were pooled from real-world PCI registries...
August 3, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28776069/porcine-arteriogenesis-based-on-vasa-vasorum-in-a-novel-semi-acute-occlusion-model-using-high-resolution-imaging
#10
Jonathan M Harnoss, Florian Krackhardt, Zully Ritter, Susanne Granzow, Dieter Felsenberg, Konrad Neumann, Lilach O Lerman, Fabian Riediger, Philipp Hillmeister, Peter Bramlage, Ivo R Buschmann
Bridging collaterals (BC) develop in several chronic total artery occlusion diseases, and can prevent extensive myocardial necrosis. Yet, their origin, growth process, and histo-morphology are still unclear. Since vasa vasorum (VV) may take part in collateralization, we hypothesized that VV are the basis for BCs. To comprehensively investigate this arteriogenesis process, we used high-resolution imaging, including corrosion casts, post-mortem angiography with stereoscopy, micro-CT, and immunohistology, in combination with a novel semi-acute vessel occlusion model...
August 3, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28763313/generalizability-of-excel-and-noble-results-to-a-large-registry-population-with-unprotected-left-main-coronary-artery-disease
#11
Pil Hyung Lee, Se Hun Kang, Seungbong Han, Jung-Min Ahn, Jae Seok Bae, Cheol Hyun Lee, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Cheol Whan Lee, Seong-Wook Park, Duk-Woo Park, Seung-Jung Park
OBJECTIVE: The aim of this study was to determine how trial-based findings of EXCEL and NOBLE might be interpreted and generalizable in 'real-world' settings with comparison of data from the large-scaled, all-comer Interventional Research Incorporation Society-Left MAIN Revascularization (IRIS-MAIN) registry. PATIENTS AND METHODS: We compared baseline clinical and procedural characteristics and also determined how the relative treatment effect of percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) was different in EXCEL and NOBLE, compared with those of the multicenter, IRIS-MAIN registry (n=2481)...
July 31, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28762930/-the-complex-program-of-rehabilitation-of-patients-with-ischemic-heart-disease-after-coronary-artery-bypass-surgery-in-ambulatory-cardiorehabilitational-department-clinical-effects-of-third-stage-of-rehabilitation
#12
D M Aronov, M G Bubnova, D G Ioseliani, V B Krasnitsky, T V Shovkun, N K Novikova, E V Yarnykh
PURPOSE: to assess clinical efficacy of early post discharge rehabilitation of patients with ischemic heart disease (IHD) after coronary artery bypass grafting (CABG) in conditions of a polyclinical department of cardiological rehabilitation (stage III of cardiorehabilitation). MATERIAL AND METHODS: We included in this study 36 men with IHD in 3-8 weeks (mean 7.8+/-1.6 weeks) after CABG. Patients were randomized in 2groups: patients of the main group attended special "School for patients recovering after CABG" [School] (60-80 min sessions once a week for 5 weeks) and participated in a program of monitored (up to 60 min 3 times a week for 4 months) and unmonitored (home based) exercise training...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28762929/-risk-factors-of-cardiovascular-complications-after-beating-heart-coronary-artery-bypass-grafting-in-patients-with-type-two-diabetes
#13
S Y Borodashkina, K V Protasov, V A Podkamennyi
AIM: to determine risk factors of early cardiovascular complications after beating-heart coronary artery bypass grafting (CABG) in patients with ischemic coronary disease (IHD) and type two diabetes (D2). MATERIALS AND METHODS: We included into this study 188 patients (mean age 59 years, 85.1% men) with IHD and D2 who underwent off-pump CABG. The following cardiovascular complications (CVC) registered within 7 days after surgery were analyzed: myocardial infarction (MI), stroke/transient ischemic attack (S/TIA), atrial fibrillation (AF)...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28762921/-ecg-predictors-of-prognostically-unfavorable-coronary-artery-lesions
#14
I R Tsoy, I P Kolos, I D Strazhesko
Medical treatment of most patients with ischemic heart disease is comparable to revascularization by the effect on major adverse cardiovascular events (myocardial infarction, cardiovascular and overall mortality), and in the long term, on quality of life. However, revascularization of the left main coronary artery lesion and lesions in the proximal segment of the anterior descending artery leads to a significant increase in life expectancy. ECG methods of detection of such prognostically unfavorable lesions of the coronary arteries can significantly optimize the management, hasten revascularization of the myocardium...
May 2017: Kardiologiia
https://www.readbyqxmd.com/read/28760214/clinical-outcomes-with-percutaneous-coronary-revascularization-vs-coronary-artery-bypass-grafting-surgery-in-patients-with-unprotected-left-main-coronary-artery-disease-a-meta-analysis-of-6-randomized-trials-and-4-686-patients
#15
REVIEW
Tullio Palmerini, Patrick Serruys, Arie Pieter Kappetein, Philippe Genereux, Diego Della Riva, Letizia Bacchi Reggiani, Evald Christiansen, Niels R Holm, Leif Thuesen, Timo Makikallio, Marie Claude Morice, Jung-Min Ahn, Seung-Jung Park, Holger Thiele, Enno Boudriot, Mario Sabatino, Mattia Romanello, Giuseppe Biondi-Zoccai, Raphael Cavalcante, Joseph F Sabik, Gregg W Stone
Some but not all randomized controlled trials (RCT) have suggested that percutaneous coronary intervention (PCI) with drug-eluting stents may be an acceptable alternative to coronary artery bypass grafting (CABG) surgery for the treatment of unprotected left main coronary artery disease (ULMCAD). We therefore aimed to compare the risk of all-cause mortality between PCI and CABG in patients with ULMCAD in a pairwise meta-analysis of RCT. METHODS: Randomized controlled trials comparing PCI vs CABG for the treatment of ULMCAD were searched through MEDLINE, EMBASE, Cochrane databases, and proceedings of international meetings...
August 2017: American Heart Journal
https://www.readbyqxmd.com/read/28756957/comparison-of-the-diameters-of-the-major-epicardial-coronary-arteries-by-angiogram-in-asian-indians-versus-european-americans-40-years-of-age-undergoing-percutaneous-coronary-artery-intervention
#16
Amgad N Makaryus, Rajiv Jauhar, Leanne M Tortez, Renee Pekmezaris
Coronary artery disease (CAD) rates are higher in Asian-Indians than in Caucasians. CAD occurs at an earlier age in this group, with about a quarter of all myocardial infarctions occurring under the age of 40. Previous reports have suggested smaller coronary artery size in Asian-Indians as a major cause for increased CAD in this population. This study sought to evaluate the size of normal "atheroma-free" segments of the epicardial coronary arteries in Asian-Indians and Caucasians aged ≤40 years undergoing coronary artery intervention in other diseased segments...
June 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28752200/retrospective-analysis-of-769-cases-of-sudden-cardiac-death-from-2006-to-2015-a-forensic-experience-in-china
#17
Zijiao Ding, Mingzhen Yang, Yunyun Wang, Shifan Wu, Xingang Qiu, Qian Liu
Sudden cardiac death (SCD) is a major health challenge. The records of 769 autopsy cases of SCD examined at Tongji Medicolegal Expertise Center from January 2006 to December 2015 were retrospectively reviewed. The mean age of the cases was 46 years, excluding 27 victims in whom the exact age could not be confirmed. The highest incidence of SCD occurred among the 40- to 60-year-old group (45.0%). Male preponderance was observed in SCD cases (male: female ratio: 5.0:1), and this preponderance was even higher (8...
July 27, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28748149/the-prognostic-value-of-residual-coronary-stenoses-after-functionally-complete-revascularisation
#18
EDITORIAL
Dennis T L Wong
Fractional flow reserve (FFR) has become the gold standard for functional assessment of coronary artery stenosis. Studies have confirmed the superiority of FFR guided percutaneous coronary intervention (PCI) compared to angiography guided PCI. Due to the high cost of FFR, it is not economically viable for FFR to be incorporated into every routine invasive coronary angiography. As a result, visual estimation of diameter stenosis on invasive coronary angiography still remains the cornerstone for decision making regarding revascularisation treatment for patients...
June 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28738488/-pathological-features-at-autopsy-in-elderly-patients-with-acute-myocardial-infarction
#19
H Wang, F Fang, K Chai, Y Y Li, Y Luo, D G Liu, D P Liu, J F Yang
Objective: To analyze the cardiac pathological features of elderly coronary artery disease (CAD) patients (60 years and over) and evaluate the pathological features at autopsy and risk factors of patients with acute myocardial infarction (AMI). Methods: Data from 471 elderly patients (aged from 60 to 100 years old) with CAD confirmed by autopsy hospitalized in our hospital from April 1969 to October 2013 were retrospectively reviewed. Patients were divided into 2 groups: AMI group(n=128) with AMI as the primary cause of death and the rest served as control group(n=343)...
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28734587/computed-tomography-predict-regression-of-coronary-artery-aneurysm-in-patients-with-kawasaki-disease
#20
Po-Ting Chen, Ming-Tai Lin, Yih-Sharng Chen, Shyh-Jye Chen, Mei-Hwan Wu
BACKGROUND/PURPOSE: The study evaluated possible factors influencing the regression of coronary artery aneurysm (CAA) in patients with Kawasaki disease (KD) through electrocardiographically gated cardiac computed tomography (CT). METHODS: 18 patients with KD exhibited CAAs in at least 2 CT examinations conducted from December 2004 to September 2015, and 37 aneurysms were observed. Every aneurysm was corrected through the descending aorta at the origin level of the left main coronary artery under a normal distribution and measured under a fixed window level...
July 19, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
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