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Coronary collateral

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https://www.readbyqxmd.com/read/28903939/percutaneous-coronary-intervention-versus-optimal-medical-therapy-for-chronic-total-coronary-occlusion-with-well-developed-collaterals
#1
Se Yeon Choi, Byoung Geol Choi, Seung-Woon Rha, Man Jong Baek, Yang Gi Ryu, Yoonjee Park, Jae Kyeong Byun, Minsuk Shim, Hu Li, Ahmed Mashaly, Won Young Jang, Woohyeun Kim, Jah Yeon Choi, Eun Jin Park, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh
BACKGROUND: The impact of percutaneous coronary intervention (PCI) on chronic total occlusion in patients with well-developed collaterals is not clear. METHODS AND RESULTS: A total of 640 chronic total occlusion patients with collateral flow grade ≥2 were divided into 2 groups; chronic total occlusion patients either treated with PCI (the PCI group; n=305) or optimal medical therapy (the optimal medical therapy group; n=335). To adjust for potential confounders, a propensity score matching analysis was performed...
September 13, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28898455/coronary-pulmonary-arterial-fistula-in-a-neonate-with-pulmonary-atresia-ventricular-septal-defect-and-single-coronary-artery
#2
Naif Alkhushi, Osman O Al-Radi, Amr Ajlan, Gaser Abdelmohsen, Wael Attia
In cases of pulmonary atresia with ventricular septal defect (PA-VSD), coronary-pulmonary arterial fistula (CPAF) as the main source of pulmonary blood supply is extremely rare. These fistulae may arise from the left coronary artery, right coronary artery, or a single coronary artery. Fistulae from a single coronary artery are unusual. We are reporting a case of PA-VSD with single coronary artery and CPAF as the main source of pulmonary supply in addition to two major aortopulmonary collateral arteries (MAPCAS)...
September 12, 2017: Echocardiography
https://www.readbyqxmd.com/read/28890565/anaesthetic-management-of-infants-posted-for-repair-of-anomalous-origin-of-left-coronary-artery-from-pulmonary-artery
#3
Chitralekha Patra, Naveen G Singh, N Manjunatha, Anand Bhatt
First described in 1908, anomalous origin of left coronary artery from pulmonary artery is a very rare congenital anomaly. Here, the right coronary artery is usually enlarged and has a normal origin from aorta. Numerous collaterals connect the two coronary arteries over right ventricular outflow tract or interventricular septum. It is one of the most common causes of myocardial ischaemia and infarction in children.
August 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28890058/reversal-of-acute-mesenteric-ischemia-by-salvation-of-the-meandering-mesenteric-artery-with-stenting-of-the-left-internal-iliac-artery
#4
Kotsis Thomas, Christoforou P, Nastos C, Chatziioannou A, Theodosopoulos T
The presence of the meandering mesenteric artery, which is a non-constant tortuous arterial component unifying the peripheral intestinal circulation, is evidence of chronic occlusive disease of the main intestinal arteries. This collateral intestinal arterial pathway, when present, must be preserved in any abdominal intervention, as it is often the only remaining arterial supply of the intestine; its ligation can be accompanied by intestinal ischemia. We present herein, the case of a 42-year old man, heavy smoker, who had chronic mesenteric ischemia without particular clinical manifestations till the hospitalization for acute myocardial infarction for which he underwent balloon angioplasty and stenting of the left circumflex coronary artery...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28885394/pleiotrophin-levels-are-associated-with-improved-coronary-collateral-circulation
#5
Pinar Türker Duyuler, Serkan Duyuler, Murat Gök, Harun Kundi, Canan Topçuoğlu, Ümit Güray
OBJECTIVES: Elucidation of the underlying mechanisms of angiogenesis and arteriogenesis in coronary collateral formation is necessary for new therapies. Pleiotrophin is a secreted multifunctional cytokine and associated with the formation of functional cardiovascular neovascularization in a series of experimental animal models. We aimed to evaluate the serum levels of pleiotrophin in patients with chronic total coronary artery occlusion and poor or good collateral development. METHODS: We included 88 consecutive patients (mean age of the entire population: 63...
September 6, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28882941/anomalous-left-anterior-descending-artery-arising-from-the-pulmonary-trunk-a-rare-cause-of-angina
#6
Abdalla Ibrahim, Stephen P Power, Peter Kelly
A 60-year-old man with a medical history of hypertension and dyslipidaemia presented to our rapid access chest pain clinic with a 2-month history of chest pain on exertion. An exercise stress test was arranged, which showed electrical evidence of inducible ischaemia. Subsequently, a coronary angiogram revealed an anomalous left anterior descending artery arising from the main pulmonary artery that received grade 3 collaterals from a large right coronary artery arising from the aorta. The circumflex arises from the right coronary sinus with a retroaortic course and provided collaterals to the anomalous left anterior descending artery...
September 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28842146/clinical-and-prognostic-value-of-the-electrocardiogram-in-patients-with-acute-occlusion-of-the-left-circumflex-coronary-artery
#7
Miquel Vives-Borrás, Abdel-Hakim Moustafa, Jesús Álvarez-García, Andreu Ferrero-Gregori, Jordi Balcells, Joan García-Picart, Antoni Serra-Peñaranda, Alessandro Sionis, Juan Cinca
The utility of the electrocardiogram (ECG) in patients with acute left circumflex (LC) coronary occlusion is not established. This study aimed at determining the clinical, angiographic, and prognostic characteristics associated with the different patterns of ST-segment changes in patients with LC occlusion. A cohort of 314 patients with LC occlusion was categorized according to the admission ECG: (1) ST-segment elevation (ST-E, n=208), (2) isolated ST-segment depression in precordial leads (ST-D, n=62), and (3) negligible ST-segment changes (No-ST, n=44)...
July 31, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28797424/retrograde-chronic-total-occlusion-percutaneous-coronary-intervention-through-ipsilateral-collateral-channels-a-multicenter-registry
#8
Lorenzo Azzalini, Pierfrancesco Agostoni, Susanna Benincasa, Paul Knaapen, Stefan P Schumacher, Joseph Dens, Joren Maeremans, Adriaan O Kraaijeveld, Leo Timmers, Michael Behnes, Ibrahim Akin, Aurel Toma, Franz-Josef Neumann, Antonio Colombo, Mauro Carlino, Kambis Mashayekhi
OBJECTIVES: The aim of this study was to describe the procedural aspects and outcomes of retrograde chronic total occlusion (CTO) percutaneous coronary intervention (PCI) through ipsilateral collateral channels (ILCs). BACKGROUND: Retrograde CTO PCI via ILCs is rarely performed, usually when no other retrograde options exist, and available evidence derives mostly from case reports. METHODS: A large retrospective multinational registry was compiled, including all consecutive patients undergoing retrograde CTO PCI through ILCs at 6 centers between September 2011 and October 2016...
August 14, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28776069/porcine-arteriogenesis-based-on-vasa-vasorum-in-a-novel-semi-acute-occlusion-model-using-high-resolution-imaging
#9
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/28738486/-association-between-collateral-circulation-and-myocardial-viability-evaluated-by-cardiac-magnetic-resonance-imaging-in-patients-with-coronary-artery-chronic-total-occlusion
#10
J N Li, L J Zhang, Y He, Y L Chen, R C Huang, S Z Lyu, X T Song
Objective: Late gadolinium enhancement(LGE) cardiac magnetic resonance imaging(CMR) was used to evaluate the myocardial viability of chronic total occlusion(CTO) in patients with coronary heart disease and to observe the relationship between collateral circulation and myocardium viability in these patients. Methods: This retrospective study included 40 patients with CTO diagnosed by invasive coronary angiography (CAG) from September 2015 to June 2016 in our department, all patients performed CMR examination within one week after CAG...
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28724418/improved-recovery-of-regional-left-ventricular-function-after-pci-of-chronic-total-occlusion-in-stemi-patients-a-cardiovascular-magnetic-resonance-study-of-the-randomized-controlled-explore-trial
#11
Joëlle Elias, Ivo M van Dongen, Loes P Hoebers, Dagmar M Ouweneel, Bimmer E P M Claessen, Truls Råmunddal, Peep Laanmets, Erlend Eriksen, René J van der Schaaf, Dan Ioanes, Robin Nijveldt, Jan G Tijssen, Alexander Hirsch, José P S Henriques
BACKGROUND: The Evaluating Xience and left ventricular function in PCI on occlusiOns afteR STEMI (EXPLORE) trial did not show a significant benefit of percutaneous coronary intervention (PCI) of the concurrent chronic total occlusion (CTO) in ST-segment elevation myocardial infarction (STEMI) patients on global left ventricular (LV) systolic function. However a possible treatment effect will be most pronounced in the CTO territory. Therefore, we aimed to study the effect of CTO PCI compared to no-CTO PCI on the recovery of regional LV function, particularly in the CTO territory...
July 19, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28712815/asymptomatic-carotid-stenosis-is-associated-with-cognitive%C3%A2-impairment
#12
Brajesh K Lal, Moira C Dux, Siddhartha Sikdar, Carly Goldstein, Amir A Khan, John Yokemick, Limin Zhao
BACKGROUND: Cerebrovascular risk factors (eg, hypertension, coronary artery disease) and stroke can lead to vascular cognitive impairment. The Asymptomatic Carotid Stenosis and Cognitive Function study evaluated the isolated impact of asymptomatic carotid stenosis (no prior ipsilateral or contralateral stroke or transient ischemic attack) on cognitive function. Cerebrovascular hemodynamic and carotid plaque characteristics were analyzed to elucidate potential mechanisms affecting cognition...
July 13, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28701611/the-utility-of-targeted-perioperative-transthoracic-echocardiography-in-managing-an-adult-patient-with-anomalous-origin-of-the-left-coronary-artery-pulmonary-artery-for-noncardiac-surgery
#13
Anudeep Jafra, Suman Arora, Aveek Jayant
Congenital coronary artery anomalies as a whole are uncommon. Abnormal origin of the left coronary artery from the pulmonary artery (ALCAPA) is probably the most common congenital coronary defect. An overwhelming majority of the patients with untreated ALCAPA do not survive to adulthood. As yet, there is no consensus on the management of adults with ALCAPA. We describe a patient with breast malignancy and incidentally detected ALCAPA; primacy was given to treatment of the oncologic condition as a first step...
July 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28700405/characterization-of-viability-scarring-and-hibernation-of-the-myocardium-supplied-by-epicardial-coronary-arteries-with-low-flow-grades
#14
Abdallah Al-Mohammad, Murdoch Y Norton, Andrew E Welch, Stephen Walton
OBJECTIVE: The aim of this study was to analyse the relationship between reduced coronary artery flow and myocardial viability, scarring and hibernation. PATIENTS AND METHODS: Coronary flow grades and collateral vessels were scored using the thrombolysis in myocardial infarction trial (TIMI) and the Rentrop and Cohen scoring systems, respectively. N-ammonia and fluorine-18-fluorodeoxyglucose (F-FDG) are the perfusion and metabolic markers on PET, respectively. The left ventricle was divided into three coronary territories...
August 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28700032/lipoprotein-a-as-a-predictor-of-poor-collateral-circulation-in-patients-with-chronic-stable-coronary-heart-disease
#15
Y Fan, J-S Hu, F Guo, Z-B Lu, H Xia
As a mechanism compensating for obstructive coronary artery disease, coronary collateral circulation (CCC) has attracted cardiologists for a long time to explore its potential impact. In the present study, Chinese patients suffering from ≥95% coronary stenosis, as diagnosed by angiography, have been investigated for the correlation between CCC and lipoprotein(a) [Lp(a)] levels. A cohort of 654 patients was divided into four categories according to Rentrop grades 0, 1, 2, and 3. Lp(a) levels were divided into model 1, discretized with critical values of 33 and 66%, and model 2, discretized with a cutoff value of 30...
July 10, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28685580/association-of-igf-1-with-coronary-collateral-circulation-in-stable-coronary-artery-disease
#16
Harun Kundi, Murat Gok, Emrullah Kiziltunc, Mustafa Cetin, Ender Ornek
AIM: The aim of the present study is to evaluate the relationship between coronary collateral circulation (CCC) grade and serum IGF-1 levels in patients diagnosed with stable coronary artery disease. METHODS: Totally, 190 consecutive patients with stable coronary artery disease who underwent coronary angiography were included in this study. RESULTS: The patients with good CCC had significantly higher IGF-1 levels compared with the poor ones...
July 7, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28678145/novel-molecular-targets-for-coronary-angiogenesis-and-ischemic-heart-disease
#17
Brittany A Potz, Anshul B Parulkar, Ruhul M Abid, Neel R Sodha, Frank W Sellke
Coronary artery disease (CAD) is the number one cause of death among men and women in the USA. Genetic predisposition and environmental factors lead to the development of atherosclerotic plaques in the vessel walls of the coronary arteries, resulting in decreased myocardial perfusion. Treatment includes a combination of revascularization procedures and medical therapy. Because of the high surgical risk of many of the patients undergoing revascularization procedures, medical therapies to reduce ischemic disease are an area of active research...
July 3, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28678144/relationship-of-mean-platelet-volume-to-lymphocyte-ratio-and-coronary-collateral-circulation-in-patients-with-stable-angina-pectoris
#18
Ender Ornek, Alparslan Kurtul
BACKGROUND: In patients with coronary artery disease, coronary collateral circulation (CCC) develops as an adaptation to ischemia and contributes toward reduction of cardiovascular events. Recently, the mean platelet volume-to-lymphocyte ratio (MPVLR) has emerged as a novel and readily available marker of inflammation and thrombosis. This study aimed to investigate the relationship between MPVLR and development of CCC. PATIENTS AND METHODS: A total of 332 patients with stable angina pectoris undergoing coronary arteriography were enrolled and divided on the basis of the development of CCC into two groups: group with adequate CCC (n=243) and group with impaired CCC (n=89)...
September 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28651802/echocardiographic-diagnosis-surgical-treatment-and-outcomes-of-anomalous-left-coronary-artery-from-the-pulmonary-artery
#19
Shivani G Patel, Michele A Frommelt, Peter C Frommelt, Shelby Kutty, Jonathan W Cramer
BACKGROUND: Anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare condition that can be difficult to diagnose by echocardiography alone. The purpose of this study was to describe the clinical and echocardiographic presentation of ALCAPA, create a set of critical echocardiographic diagnostic criteria, and report outcomes. METHODS: A retrospective review was conducted of all patients diagnosed with isolated ALCAPA at two major cardiac centers between 1990 and 2015...
September 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28651297/anomalous-origin-of-the-left-main-coronary-artery-arising-from-the-left-ventricular-outflow-tract-with-a-retro-aortic-collateral-vessel
#20
Asad Khan, Jason Audlin, Santiago Miro, Debanik Chaudhuri, Robert Dunton
No abstract text is available yet for this article.
August 2017: Journal of Cardiac Surgery
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