The stunned myocardium: prolonged, postischemic ventricular dysfunction.

abstract：BACKGROUND:Two hundred eighteen patients were evaluated in a two-phase approach (time to first appropriate discharge, survival after discharge) to identify factors that may be related to maximal benefit derived from use of an automatic implantable cardioverter-defibrillator (AICD). METHODS AND RESULTS:One hundred nine...

journal_title：Circulation

authors： Levine JH,Mellits ED,Baumgardner RA,Veltri EP,Mower M,Grunwald L,Guarnieri T,Aarons D,Griffith LS

更新日期：1991-08-01 00:00:00

abstract：BACKGROUND:Cardiac troponin I (cTnI), a sensitive and specific marker of myocardial cell injury, is useful in diagnosing and assessing prognosis in acute coronary syndromes. Small studies report that cTnI is elevated in severe heart failure (HF) and may predict adverse outcomes. METHODS AND RESULTS:The present study e...

journal_title：Circulation

authors： Horwich TB,Patel J,MacLellan WR,Fonarow GC

更新日期：2003-08-19 00:00:00

abstract：BACKGROUND:In animal models of cardiac arrest, the benefit afforded by hypothermia is closely linked to the rapidity of the decrease in body temperature after resuscitation. Because total liquid ventilation (TLV) with temperature-controlled perfluorocarbons induces a very rapid and generalized cooling, we aimed to dete...

journal_title：Circulation

authors： Chenoune M,Lidouren F,Adam C,Pons S,Darbera L,Bruneval P,Ghaleh B,Zini R,Dubois-Randé JL,Carli P,Vivien B,Ricard JD,Berdeaux A,Tissier R

更新日期：2011-08-23 00:00:00

abstract：:Echocardiographic and cardiac catheterization findings were compared in 61 patients with mitral stenosis without other significant lesions in an attempt to determine the clinical usefulness of echocardiography in the assessment of such patients. There was a poor correlation between the E-F slope on the echocardiogram ...

journal_title：Circulation

authors： Cope GD,Kisslo JA,Johnson ML,Behar VS

更新日期：1975-10-01 00:00:00

abstract：BACKGROUND:Ezetimibe, when added to simvastatin, reduces cardiovascular events after acute coronary syndrome. We explored outcomes stratified by diabetes mellitus (DM). METHODS:In IMPROVE-IT (Improved Reduction of Outcomes: Vytorin Efficacy International Trial), 18 144 patients after acute coronary syndrome with low-d...

journal_title：Circulation

authors： Giugliano RP,Cannon CP,Blazing MA,Nicolau JC,Corbalán R,Špinar J,Park JG,White JA,Bohula EA,Braunwald E,IMPROVE-IT (Improved Reduction of Outcomes: Vytorin Efficacy International Trial) Investigators.

更新日期：2018-04-10 00:00:00

abstract：BACKGROUND:In heart failure, sarcoplasmic reticulum (SR) Ca(2+)-ATPase (SERCA2a) activity is decreased, resulting in abnormal calcium handling and contractile dysfunction. We have previously shown that increasing SERCA2a expression by gene transfer improves ventricular function in a rat model of heart failure created b...

journal_title：Circulation

authors： del Monte F,Williams E,Lebeche D,Schmidt U,Rosenzweig A,Gwathmey JK,Lewandowski ED,Hajjar RJ

更新日期：2001-09-18 00:00:00

abstract：BACKGROUND:The excess risk of atherosclerosis among patients with non-insulin dependent diabetes mellitus (NIDDM) is well documented. However, the presence of conventional risk factors cannot fully account for this excess risk, and the underlying mechanism remains to be elucidated. The present study prospectively evalu...

journal_title：Circulation

authors： Austin MA,Mykkänen L,Kuusisto J,Edwards KL,Nelson C,Haffner SM,Pyörälä K,Laakso M

更新日期：1995-10-01 00:00:00

abstract：BACKGROUND:The purposes of this study were to evaluate the comparative accuracy of dobutamine echocardiography and quantitative rest-redistribution 201Tl tomography in the prediction of recovery of function after revascularization and to assess the relation of contractile reserve to thallium uptake. METHODS AND RESULT...

journal_title：Circulation

authors： Qureshi U,Nagueh SF,Afridi I,Vaduganathan P,Blaustein A,Verani MS,Winters WL Jr,Zoghbi WA

更新日期：1997-02-04 00:00:00

abstract：BACKGROUND:Sensitivity to apoptotic signals, the clearance rate of apoptosis, and the apoptotic ultrastructure have not been studied in cells of the in vivo adult heart. METHODS AND RESULTS:To minimize the systemic influence, soluble Fas ligand was injected directly into in vivo rat hearts and livers (as the control) ...

journal_title：Circulation

authors： Hayakawa K,Takemura G,Koda M,Kawase Y,Maruyama R,Li Y,Minatoguchi S,Fujiwara T,Fujiwara H

更新日期：2002-06-25 00:00:00

abstract：BACKGROUND:The mechanism and treatment of diastolic heart failure are poorly understood. We compared the effects of an ACE inhibitor, an angiotensin receptor blocker (ARB), and their combination on diastolic heart failure in Dahl salt-sensitive (DS) rats. METHODS AND RESULTS:DS rats fed an 8% NaCl diet from 7 weeks of...

journal_title：Circulation

authors： Kim S,Yoshiyama M,Izumi Y,Kawano H,Kimoto M,Zhan Y,Iwao H

更新日期：2001-01-02 00:00:00

abstract：BACKGROUND:In contrast to healthy volunteers, regional differences of cardiac autonomic innervation have been described through the use of C11-hydroxyephedrine positron emission tomography (HED-PET) in the left ventricles of patients with dilated cardiomyopathy. The goal of the present study was to correlate HED-PET im...

journal_title：Circulation

authors： Ungerer M,Hartmann F,Karoglan M,Chlistalla A,Ziegler S,Richardt G,Overbeck M,Meisner H,Schömig A,Schwaiger M

更新日期：1998-01-20 00:00:00

abstract：BACKGROUND:Postmortem interrogations of cardiac implantable electronic devices (CIEDs), recommended at autopsy in suspected cases of sudden cardiac death, are rarely performed, and data on systematic postmortem CIED analysis in the forensic pathology are missing. The aim of the study was to determine whether nonselecti...

journal_title：Circulation

authors： Lacour P,Buschmann C,Storm C,Nee J,Parwani AS,Huemer M,Attanasio P,Boldt LH,Rauch G,Kucher A,Pieske B,Haverkamp W,Blaschke F

更新日期：2018-06-19 00:00:00

abstract：BACKGROUND:Multiple excitation wavelets are present during ventricular fibrillation (VF). The underlying wavelet organization of VF is unclear. Phase singularities (PSs)-locations of ambiguous activation state-underlie reentry and wavelet splitting and represent the sources of VF. Understanding the mechanisms of PS for...

journal_title：Circulation

authors： Valderrábano M,Chen PS,Lin SF

更新日期：2003-07-22 00:00:00

abstract：BACKGROUND:The cross-talk between vascular endothelial growth factor (VEGF)-A, angiopoietin (Ang), and VE-cadherin coregulates endothelial cell (EC) survival. Cardiac expression of VEGF-A but not its receptor KDR is blunted in dilated cardiomyopathy (DCM). Whether VE-cadherin/Ang function is affected in DCM is unknown....

journal_title：Circulation

authors： Schäfer R,Abraham D,Paulus P,Blumer R,Grimm M,Wojta J,Aharinejad S

更新日期：2003-09-30 00:00:00

abstract：:Power outputs that are below the anaerobic threshold (theta an) may be sustained for prolonged durations, whereas power outputs that are greater than theta an result in a significant reduction in the tolerable duration to fatigue. The theta an may therefore be considered to demarcate exercise intensity into moderate (...

journal_title：Circulation

authors： Whipp BJ

更新日期：1987-12-01 00:00:00

abstract：:The International Liaison Committee on Resuscitation has initiated a near-continuous review of cardiopulmonary resuscitation science that replaces the previous 5-year cyclic batch-and-queue approach process. This is the first of an annual series of International Consensus on Cardiopulmonary Resuscitation and Emergency...

journal_title：Circulation

authors： Olasveengen TM,de Caen AR,Mancini ME,Maconochie IK,Aickin R,Atkins DL,Berg RA,Bingham RM,Brooks SC,Castrén M,Chung SP,Considine J,Couto TB,Escalante R,Gazmuri RJ,Guerguerian AM,Hatanaka T,Koster RW,Kudenchuk PJ,Lang

更新日期：2017-12-05 00:00:00

abstract：:Atherosclerotic cardiovascular disease results in >19 million deaths annually, and coronary heart disease accounts for the majority of this toll. Despite major advances in treatment of coronary heart disease patients, a large number of victims of the disease who are apparently healthy die suddenly without prior sympto...

journal_title：Circulation

authors： Naghavi M,Libby P,Falk E,Casscells SW,Litovsky S,Rumberger J,Badimon JJ,Stefanadis C,Moreno P,Pasterkamp G,Fayad Z,Stone PH,Waxman S,Raggi P,Madjid M,Zarrabi A,Burke A,Yuan C,Fitzgerald PJ,Siscovick DS,de Korte CL

更新日期：2003-10-14 00:00:00

abstract：BACKGROUND:Cardiac Na/K-ATPase (NKA) regulates intracellular Na ([Na](i)), which in turn affects intracellular Ca and thus contractility via Na/Ca exchange. Recent evidence shows that phosphorylation of the NKA-associated small transmembrane protein phospholemman (PLM) mediates beta-adrenergic-induced NKA stimulation. ...

journal_title：Circulation

authors： Despa S,Tucker AL,Bers DM

更新日期：2008-04-08 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:Although global ischemia induces troponin I (TnI) degradation, regional ischemia does not. We hypothesized that this disparity is related to preload-induced proteolysis, which varies as a function of the amount of myocardium at risk of ischemia. METHODS AND RESULTS:Isolated rat hearts were buffer-perfused a...

journal_title：Circulation

authors： Feng J,Schaus BJ,Fallavollita JA,Lee TC,Canty JM Jr

更新日期：2001-04-24 00:00:00

abstract：BACKGROUND:We have reported that there is a limitation of exercise capacity in mice with defects in the expression of endothelial nitric oxide (NO) synthase, which is associated with a greater increase in whole-body oxygen consumption (VO2). We hypothesized that in states in which superoxide anion (O2-) is increased, e...

journal_title：Circulation

authors： Kinugawa S,Wang Z,Kaminski PM,Wolin MS,Edwards JG,Kaley G,Hintze TH

更新日期：2005-03-29 00:00:00

abstract：BACKGROUND:Several methods have been developed to improve the efficacy of mechanical resuscitation, because organ perfusion achieved with conventional manual resuscitation is often insufficient. In animal studies, phased chest and abdominal compression-decompression resuscitation by use of the Lifestick device has resu...

journal_title：Circulation

authors： Arntz HR,Agrawal R,Richter H,Schmidt S,Rescheleit T,Menges M,Burbach H,Schröder J,Schultheiss HP

更新日期：2001-08-14 00:00:00

abstract：BACKGROUND:Cardiac resynchronization therapy has emerged as an important therapy for advanced systolic heart failure. Among available cardiac resynchronization therapy pacing modes that restore ventricular synchrony, it is uncertain whether simultaneous biventricular (BiV), sequential BiV, or left ventricular (LV) paci...

journal_title：Circulation

authors： Rao RK,Kumar UN,Schafer J,Viloria E,De Lurgio D,Foster E

更新日期：2007-04-24 00:00:00

abstract：:Although thrombolytic therapy has been a major advance in the treatment of acute myocardial infarction, in at least 25% of patients the artery remains occluded after administration. In these patients, the strategy of "rescue" or "salvage" angioplasty is frequently used although follow-up data are limited. Sixty-three ...

journal_title：Circulation

authors： Holmes DR Jr,Gersh BJ,Bailey KR,Reeder GS,Bresnahan JF,Bresnahan DR,Vlietstra RE

更新日期：1990-03-01 00:00:00

abstract：BACKGROUND:Enzymatic, nonoxidative modification transforms LDL to an atherogenic molecule (E-LDL) that activates complement and macrophages and is present in early atherosclerotic lesions. METHODS AND RESULTS:We report on the atherogenic effects of E-LDL on human vascular smooth muscle cells (SMC). E-LDL accumulated i...

journal_title：Circulation

authors： Klouche M,Rose-John S,Schmiedt W,Bhakdi S

更新日期：2000-04-18 00:00:00

abstract：BACKGROUND:The optimal strategy for treating coronary bifurcation lesions remains a subject of debate. With bare-metal stents, single-stent approaches appear to be superior to systematic 2-stent strategies. Drug-eluting stents, however, have low rates of restenosis and might offer improved outcomes with complex stentin...

journal_title：Circulation

authors： Hildick-Smith D,de Belder AJ,Cooter N,Curzen NP,Clayton TC,Oldroyd KG,Bennett L,Holmberg S,Cotton JM,Glennon PE,Thomas MR,Maccarthy PA,Baumbach A,Mulvihill NT,Henderson RA,Redwood SR,Starkey IR,Stables RH

更新日期：2010-03-16 00:00:00

abstract：BACKGROUND:Sublingual nitrates are much more effective in relieving angina pectoris in patients with coronary artery disease than in patients with syndrome X, but it is not known whether their effect on exercise tolerance is also different in these two groups of patients. METHODS AND RESULTS:Treadmill exercise testing...

journal_title：Circulation

authors： Lanza GA,Manzoli A,Bia E,Crea F,Maseri A

更新日期：1994-12-01 00:00:00

abstract：:Serial sections of the conduction system (CS) were performed in two patients with recurrent tachyarrhythmias. Case 1, a 34-year-old female who had dual atrioventricular (AV) nodal pathways with recurrent paroxysmal supraventricular tachycardia, committed suicide. Autopsy revealed an abnormally formed atrial septum wit...

journal_title：Circulation

authors： Bharati S,Bauernfiend R,Scheinman M,Massie B,Cheitlin M,Denes P,Wu D,Lev M,Rosen KM

更新日期：1979-03-01 00:00:00

abstract：BACKGROUND:It is unclear whether increased left ventricular (LV) mass in overweight individuals is related to their adiposity or to greater fat-free mass (FFM). METHODS AND RESULTS:We compared echocardiographic LV mass to FFM and adipose body mass by bioelectric impedance and to anthropometric measurements in 3107 Ame...

journal_title：Circulation

authors： Bella JN,Devereux RB,Roman MJ,O'Grady MJ,Welty TK,Lee ET,Fabsitz RR,Howard BV

更新日期：1998-12-08 00:00:00

abstract：BACKGROUND:It is unknown whether adenosine can precondition human myocardium against ischemia in vivo. METHODS AND RESULTS:Thirty patients were randomized to receive a 10-minute intracoronary infusion of adenosine (2 mg/min) or normal saline; 10 minutes later, they underwent percutaneous transluminal coronary angiopla...

journal_title：Circulation

authors： Leesar MA,Stoddard M,Ahmed M,Broadbent J,Bolli R

更新日期：1997-06-03 00:00:00