Magnetic resonance--guided coronary artery stent placement in a swine model.

abstract：BACKGROUND:Pulmonary hypertension induced by chronic hypoxia is characterized by thickening of pulmonary artery walls, elevated pulmonary vascular resistance, and right-heart failure. Prostacyclin analogues reduce pulmonary pressures in this condition; raising the possibility that cycloxygenase-2 (COX-2) modulates the ...

journal_title：Circulation

authors： Pidgeon GP,Tamosiuniene R,Chen G,Leonard I,Belton O,Bradford A,Fitzgerald DJ

更新日期：2004-10-26 00:00:00

abstract：BACKGROUND:Primum atrial septal defect (ASD) is a defect that is usually associated with few symptoms and can be electively repaired with good results. A review of our experience with primum ASD identified a subset of patients characterized by presentation with congestive heart failure (CHF) in the first months of life...

journal_title：Circulation

authors： Manning PB,Mayer JE Jr,Sanders SP,Coleman EA,Jonas RA,Keane JF,VanPraagh S,Castañeda AR

更新日期：1994-11-01 00:00:00

abstract：BACKGROUND:Since the atria are thin-walled structures, most studies that have examined the spread of activation in the atria have assumed that they behave electrophysiologically as a two-dimensional surface. It was the objective of this study to determine whether or not this assumption is true by simultaneously mapping...

journal_title：Circulation

authors： Schuessler RB,Kawamoto T,Hand DE,Mitsuno M,Bromberg BI,Cox JL,Boineau JP

更新日期：1993-07-01 00:00:00

abstract：BACKGROUND:The Doppler wire-derived (relative) coronary flow velocity reserve (CVR) that is used to evaluate functional significance of a coronary stenosis is a method performed only by interventional cardiologists. An angiographic method would be useful in the diagnostic catheterization laboratory. For this purpose, w...

journal_title：Circulation

authors： Stoel MG,Zijlstra F,Visser CA

更新日期：2003-06-24 00:00:00

abstract：:Between 1972 and 1984, 100 consecutive neonates (less than or equal to 30 days old) underwent repair of coarctation of the aorta. Mean (+/- SD) age at operation was 12.0 +/- 8.0 days; mean weight was 3.1 +/- 0.5 kg. Simple coarctation was present in 29 patients (group I), 32 patients had additional ventricular septal ...

journal_title：Circulation

authors： Ziemer G,Jonas RA,Perry SB,Freed MD,Castaneda AR

更新日期：1986-09-01 00:00:00

abstract：:One hundred consecutive men with a normal ECG at rest had a maximal treadmill test using 14 leads during and post-exercise. Coronary arteriography performed the following day revealed coronary stenoses greater than or equal to 70% in 66 patients. Test results obtained from a V5 lead were compared to different lead com...

journal_title：Circulation

authors： Chaitman BR,Bourassa MG,Wagniart P,Corbara F,Ferguson RJ

更新日期：1978-01-01 00:00:00

abstract：BACKGROUND:In patients with coronary artery disease (CAD), acute thrombosis frequently occurs in coronary arteries with only mild or moderate stenoses. Obesity increases the risk of atherosclerosis, but it is not known whether it also increases the risk of coronary thrombosis. We hypothesized that body mass index (BMI)...

journal_title：Circulation

authors： Wolk R,Berger P,Lennon RJ,Brilakis ES,Somers VK

更新日期：2003-11-04 00:00:00

abstract：BACKGROUND:Depletion of L-arginine (L-arg), the substrate for nitric oxide (NO) synthesis, could be one of the mechanisms responsible for the reduced production of NO and decreased coronary flow (CF) during reperfusion. This, in turn, may adversely affect mechanical function. We aimed to study the benefits of exogenous...

journal_title：Circulation

authors： Amrani M,Gray CC,Smolenski RT,Goodwin AT,London A,Yacoub MH

更新日期：1997-11-04 00:00:00

abstract：:Exit block from a parasystolic focus is recognized when automatic discharges fail to become manifest during the excitable phase of the ventricular cycle. In the present study, an apparently complete exit block and a persistently concealed ventricular parasystole (VP) resulted from an exit refractory period (ExRP) long...

journal_title：Circulation

authors： Nau GJ,Aldariz AE,Acunzo RS,Chiale PA,Elizari MV,Rosenbaum MB

更新日期：1981-07-01 00:00:00

abstract：BACKGROUND:The Ross procedure and aortic homografts have both been shown to have superior hemodynamic performance after valve replacement, but there have been few comparisons. METHODS:Sequential Doppler echocardiograms were performed up to 5 years after aortic valve replacement in 132 patients with the Ross procedure ...

journal_title：Circulation

authors： Laforest I,Dumesnil JG,Briand M,Cartier PC,Pibarot P

更新日期：2002-09-24 00:00:00

abstract：:The effects of encainide on ventricular arrhythmia and left ventricular function were studied in 21 patients with chronic, high-grade ventricular arrhythmia using a prospective, 3-month, placebo-controlled, single-blind trial design. Encainide caused a 96% decrease in the average hourly frequency of ventricular premat...

journal_title：Circulation

authors： DiBianco R,Fletcher RD,Cohen AI,Gottdiener JS,Singh SN,Katz RJ,Bates HR,Sauerbrunn B

更新日期：1982-06-01 00:00:00

abstract：BACKGROUND:Plaque disruption and exposure of subendothelial procoagulants such as tissue factor (TF) to circulating factor VII/VIIa (FVII/VIIa) lead to intravascular thrombosis. Tissue factor pathway inhibitor (TFPI) is an endogenous inhibitor of TF-induced coagulation that binds to factor Xa and the TF-FVIIa catalytic...

journal_title：Circulation

authors： Caplice NM,Mueske CS,Kleppe LS,Simari RD

更新日期：1998-09-15 00:00:00

abstract：:Diabetes mellitus increases the risk of heart failure independently of underlying coronary artery disease, and many believe that diabetes leads to cardiomyopathy. The underlying pathogenesis is partially understood. Several factors may contribute to the development of cardiac dysfunction in the absence of coronary art...

journal_title：Circulation

authors： Boudina S,Abel ED

更新日期：2007-06-26 00:00:00

abstract：BACKGROUND:Brain natriuretic peptide is a novel natriuretic peptide that is secreted predominantly from the ventricles, and its plasma levels have been shown to be markedly increased in patients with chronic congestive heart failure. This study was designed to examine the plasma levels of brain natriuretic peptide as w...

journal_title：Circulation

authors： Morita E,Yasue H,Yoshimura M,Ogawa H,Jougasaki M,Matsumura T,Mukoyama M,Nakao K

更新日期：1993-07-01 00:00:00

abstract：BACKGROUND:The metabolic syndrome is associated with increased angiotensin II activity, induction of a proinflammatory and oxidative state, and endothelial dysfunction. We evaluated the ability of irbesartan, an angiotensin receptor blocker, and lipoic acid, an antioxidant, to affect endothelial function and inflammati...

journal_title：Circulation

authors： Sola S,Mir MQ,Cheema FA,Khan-Merchant N,Menon RG,Parthasarathy S,Khan BV

更新日期：2005-01-25 00:00:00

abstract：BACKGROUND:Antiplatelet agents presently used in the secondary prevention of cardiovascular disease fail to prevent the majority of cases of recurrent stroke and systemic embolization. An evaluation of the efficacy of new agents is hampered by a lack of in vivo models in humans. Asymptomatic cerebral embolic signals (E...

journal_title：Circulation

authors： Molloy J,Martin JF,Baskerville PA,Fraser SC,Markus HS

更新日期：1998-10-06 00:00:00

abstract：:We reviewed 35 patients undergoing resection of a chronic postinfarction left ventricular aneurysm. There was 5.7% operative mortality. Of the long-term survivors, 80% are functional class I or II. Ten patients had postoperative left ventriculograms studied by means of a computerized analysis of endocardial motion usi...

journal_title：Circulation

authors： Shaw RC,Connors JP,Hieb BR,Ludbrook PA,Krone R,Kleiger RE,Ferguson TB,Weldon CS

更新日期：1977-09-01 00:00:00

abstract：BACKGROUND:An effect of diet in determining blood pressure is suggested by epidemiological studies, but the role of specific nutrients is still unsettled. METHODS AND RESULTS:The relation of various nutritional factors with hypertension was examined prospectively among 30,681 predominantly white US male health profess...

journal_title：Circulation

authors： Ascherio A,Rimm EB,Giovannucci EL,Colditz GA,Rosner B,Willett WC,Sacks F,Stampfer MJ

更新日期：1992-11-01 00:00:00

abstract：BACKGROUND:Hypercholesterolemic mice lacking factors required for activation of CD4+ T cells are characterized by reduced development of atherosclerosis. Consequently, it has been assumed that atherosclerosis involves loss of tolerance against modified self-antigens generated in response to hypercholesterolemia and tha...

journal_title：Circulation

authors： Wigren M,Rattik S,Yao Mattisson I,Tomas L,Grönberg C,Söderberg I,Alm R,Sundius L,Ljungcrantz I,Björkbacka H,Fredrikson GN,Nilsson J

更新日期：2019-05-28 00:00:00

abstract：BACKGROUND:The extent of the peri-infarct zone by magnetic resonance imaging (MRI) has been related to all-cause mortality in patients with coronary artery disease. This relationship may result from arrhythmogenesis in the infarct border. However, the relationship between tissue heterogeneity in the infarct periphery a...

journal_title：Circulation

authors： Schmidt A,Azevedo CF,Cheng A,Gupta SN,Bluemke DA,Foo TK,Gerstenblith G,Weiss RG,Marbán E,Tomaselli GF,Lima JA,Wu KC

更新日期：2007-04-17 00:00:00

abstract：BACKGROUND:Little information is available regarding the occurrence of perioperative and late cardiac events in women with vascular disease. The current study was performed to examine whether sex-specific differences exist in these outcomes in a large population of vascular surgery patients and to determine the value o...

journal_title：Circulation

authors： Hendel RC,Chen MH,L'Italien GJ,Newell JB,Paul SD,Eagle KA,Leppo JA

更新日期：1995-02-15 00:00:00

abstract：BACKGROUND:The purpose of this study was to compare differential effects of a segment of slow conduction during ventricular tachycardia (VT) due to depression of the action potential and electrical uncoupling. METHODS AND RESULTS:In 33 Langendorff-perfused rabbit hearts, a ring of anisotropic left ventricular subepica...

journal_title：Circulation

authors： Haberl K,Allessie M

更新日期：1999-02-23 00:00:00

abstract：BACKGROUND:Demonstration and quantification of site-specific intracoronary administration of compounds has been confined thus far to the experimental animal laboratory. The aim of this study was to describe a scintigraphic method to demonstrate site-specific intracoronary drug delivery in humans. The methods allow on-l...

journal_title：Circulation

authors： Camenzind E,Bakker WH,Reijs A,van Geijlswijk IM,Boersma E,Kutryk MJ,Krenning EP,Roelandt JR,Serruys PW

更新日期：1997-07-01 00:00:00

abstract：BACKGROUND:Weight loss in obese insulin-resistant but not in insulin-sensitive persons reduces coronary heart disease risk. To what extent changes in gene expression are related to atherosclerosis and cardiovascular function is unknown. METHODS AND RESULTS:We studied the effect of diet restriction-induced weight loss ...

journal_title：Circulation

authors： Verreth W,De Keyzer D,Pelat M,Verhamme P,Ganame J,Bielicki JK,Mertens A,Quarck R,Benhabilès N,Marguerie G,Mackness B,Mackness M,Ninio E,Herregods MC,Balligand JL,Holvoet P

更新日期：2004-11-16 00:00:00

abstract：BACKGROUND:Depressive symptoms have been associated with increased risk of coronary artery disease and poor prognosis among patients with existing coronary artery disease, but whether depressive symptoms specifically influence atherosclerotic progression among such patients is uncertain. METHODS AND RESULTS:The Post-C...

journal_title：Circulation

authors： Wellenius GA,Mukamal KJ,Kulshreshtha A,Asonganyi S,Mittleman MA

更新日期：2008-05-06 00:00:00

abstract：BACKGROUND:Exertional fatigue, which frequently limits exercise in patients with chronic heart failure, is associated with early anaerobic metabolism in skeletal muscle. The present study was designed to examine the skeletal muscle metabolic response to exercise in this disorder and determine the relation of reduced mu...

journal_title：Circulation

authors： Sullivan MJ,Green HJ,Cobb FR

更新日期：1991-10-01 00:00:00

abstract：:Echocardiography was used to study left ventricular size and contraction in 128 patients with isolated aortic valve disease -45 patients with aortic stenosis, 25 with mixed aortic valve disease and 58 with aortic regurgitation. Left ventricular measurements included the end-diastolic internal dimension (LVIDd), mural ...

journal_title：Circulation

authors： McDonald IG

更新日期：1976-05-01 00:00:00

abstract：:Children with congenital aortic stenosis have "excessive" left ventricular hypertrophy with reduced resting systolic wall stress that allows for supernormal ejection performance. If aortic stenosis is uncorrected, this pattern persists until adulthood. The effect of removing the aortic pressure gradient on left ventri...

journal_title：Circulation

authors： Dorn GW 2nd,Donner R,Assey ME,Spann JF Jr,Wiles HB,Carabello BA

更新日期：1988-12-01 00:00:00

abstract：BACKGROUND:CXCL16/SR-PSOX is an interferon-gamma-regulated chemokine and scavenger receptor for oxidized low-density lipoprotein that is expressed in atherosclerotic lesions. Proteolytic cleavage of membrane-bound CXCL16 releases soluble CXCL16, which may promote migration of effector T cells and augment a proatherogen...

journal_title：Circulation

authors： Jansson AM,Aukrust P,Ueland T,Smith C,Omland T,Hartford M,Caidahl K

更新日期：2009-06-30 00:00:00

abstract：:Audible atrial sounds were noted in a patient with congestive cardiomyopathy and atrial fibrillation with slow ventricular rate. Oscillatory motion of similar periodicity as fibrillation waves in the ECG and the sounds in the phonocardiogram was demonstrated in aortic and left ventricular walls, mitral, tricuspid and ...

journal_title：Circulation

authors： Bamrah VS,Hughes CV,Tristani FE

更新日期：1976-03-01 00:00:00