Predictors of first discharge and subsequent survival in patients with automatic implantable cardioverter-defibrillators.

abstract：:In this double-blind randomized study, 19 patients with acute transmural myocardial infarction were treated with methylprednisolone administered 4.4 +/- 0.7 hours (+/- SEM) after the onset of chest pain, and were compared with 21 patients who received placebo 4.5 +/- 0.4 hours after the start of clinical symptoms. The...

journal_title：Circulation

authors： Madias JE,Hood WB Jr

更新日期：1982-06-01 00:00:00

abstract：:The ability to quantify the quality of cardiovascular care critically depends on the translation of recommendations for high-quality care into the measurement of that care. As payers and regulatory agencies increasingly seek to quantify healthcare quality, the implications of the measurement process on practicing phys...

journal_title：Circulation

authors： Spertus JA,Eagle KA,Krumholz HM,Mitchell KR,Normand SL,American College of Cardiology.,American Heart Association Task Force on Performance Measures.

更新日期：2005-04-05 00:00:00

abstract：BACKGROUND:Inhibition of dopamine beta-hydroxylase (DBH) results in a decrease in norepinephrine synthesis. The present study was a randomized, blinded, placebo-controlled investigation of the long-term effects of therapy with the DBH inhibitor nepicastat (NCT) on the progression of left ventricular (LV) dysfunction an...

journal_title：Circulation

authors： Sabbah HN,Stanley WC,Sharov VG,Mishima T,Tanimura M,Benedict CR,Hegde S,Goldstein S

更新日期：2000-10-17 00:00:00

abstract：:To investigate the effects of verapamil on left ventricular systolic and diastolic function in patients with hypertrophic cardiomyopathy, we studied 14 patients at catheterization with a nonimaging scintillation probe before and after serial intravenous infusions of low-, medium-, and high-dose verapamil (total dose 0...

journal_title：Circulation

authors： Bonow RO,Ostrow HG,Rosing DR,Cannon RO 3rd,Lipson LC,Maron BJ,Kent KM,Bacharach SL,Green MV

更新日期：1983-11-01 00:00:00

abstract：:The endothelin (ET) system is comprised of 4 active ETs, with ET-1 being the predominant isoform in the cardiovascular system. Because of the potent vasoconstricting and mitogenic effects of ET-1 and its involvement in various cardiovascular diseases, blockade of the ET receptor has received considerable attention. ET...

journal_title：Circulation

authors： Rich S,McLaughlin VV

更新日期：2003-11-04 00:00:00

abstract：BACKGROUND:We investigated the effects of candesartan (an angiotensin II antagonist) alone, enalapril alone, and their combination on exercise tolerance, ventricular function, quality of life (QOL), neurohormone levels, and tolerability in congestive heart failure (CHF). METHODS AND RESULTS:Seven hundred sixty-eight p...

journal_title：Circulation

authors： McKelvie RS,Yusuf S,Pericak D,Avezum A,Burns RJ,Probstfield J,Tsuyuki RT,White M,Rouleau J,Latini R,Maggioni A,Young J,Pogue J

更新日期：1999-09-07 00:00:00

abstract：:Integrated ultrasonic backscatter (IB) is a noninvasive measure of the acoustic properties of myocardium. Previous experimental studies have indicated that altered acoustic properties of the myocardium are reflected by the magnitude of variation of IB during the cardiac cycle. In our study, cardiac cycle-dependent var...

journal_title：Circulation

authors： Masuyama T,St Goar FG,Tye TL,Oppenheim G,Schnittger I,Popp RL

更新日期：1989-10-01 00:00:00

abstract：BACKGROUND:In patients with neurogenic orthostatic hypotension (NOH), the availability of the sympathetic neurotransmitter norepinephrine (NE) in the synaptic cleft is insufficient to maintain blood pressure while in the standing posture. METHODS AND RESULTS:We determined the effect of oral administration of the synth...

journal_title：Circulation

authors： Kaufmann H,Saadia D,Voustianiouk A,Goldstein DS,Holmes C,Yahr MD,Nardin R,Freeman R

更新日期：2003-08-12 00:00:00

abstract：BACKGROUND:Minimally invasive coronary artery bypass grafting (MICS CABG) is a novel coronary operation that does not require infrastructure and is potentially available to all cardiac surgeons. It aims at decreasing the invasiveness of conventional CABG while preserving the applicability and durability of surgical rev...

journal_title：Circulation

authors： McGinn JT Jr,Usman S,Lapierre H,Pothula VR,Mesana TG,Ruel M

更新日期：2009-09-15 00:00:00

abstract：BACKGROUND:Tumor necrosis factor-alpha (TNF-alpha) and angiotensin II (Ang II) modulate heart failure in part by provoking the hypertrophic response. Signal transduction pathways of those factors are implicated in reactive oxygen intermediates (ROIs). Therefore, we hypothesized that TNF-alpha and Ang II might cause myo...

journal_title：Circulation

authors： Nakamura K,Fushimi K,Kouchi H,Mihara K,Miyazaki M,Ohe T,Namba M

更新日期：1998-08-25 00:00:00

abstract：:Because regional wall motion abnormality (RWMA) is usually noted during ischemia, we hypothesized that the presence of this finding with two-dimensional echocardiography would be superior to conventional methods of diagnosing acute myocardial infarction (AMI) in the emergency room. We also hypothesized that because th...

journal_title：Circulation

authors： Sabia P,Afrookteh A,Touchstone DA,Keller MW,Esquivel L,Kaul S

更新日期：1991-09-01 00:00:00

abstract：BACKGROUND:The arrhythmia burden in tetralogy of Fallot, types of arrhythmias encountered, and risk profile may change as the population ages. METHODS AND RESULTS:The Alliance for Adult Research in Congenital Cardiology (AARCC) conducted a multicenter cross-sectional study to quantify the arrhythmia burden in tetralog...

journal_title：Circulation

authors： Khairy P,Aboulhosn J,Gurvitz MZ,Opotowsky AR,Mongeon FP,Kay J,Valente AM,Earing MG,Lui G,Gersony DR,Cook S,Ting JG,Nickolaus MJ,Webb G,Landzberg MJ,Broberg CS,Alliance for Adult Research in Congenital Cardiology (AARCC).

更新日期：2010-08-31 00:00:00

abstract：BACKGROUND:BET (bromodomain and extraterminal) epigenetic reader proteins, in particular BRD4 (bromodomain-containing protein 4), have emerged as potential therapeutic targets in a number of pathological conditions, including cancer and cardiovascular disease. Small-molecule BET protein inhibitors such as JQ1 have demo...

journal_title：Circulation

authors： Kim SY,Zhang X,Schiattarella GG,Altamirano F,Ramos TAR,French KM,Jiang N,Szweda PA,Evers BM,May HI,Luo X,Li H,Szweda LI,Maracaja-Coutinho V,Lavandero S,Gillette TG,Hill JA

更新日期：2020-12-15 00:00:00

abstract：:Over an 8-year period, 20 patients underwent operative repair of ventricular aneurysms during the first 8 weeks after acute myocardial infarction. All patients with multivessel coronary occlusive disease underwent concomitant coronary artery bypass grafting. There was one hospital death, for an early mortality rate o...

journal_title：Circulation

authors： Walker WE,Stoney WS,Alford WC Jr,Burrus GR,Glassford DM,Thomas CS Jr

更新日期：1980-08-01 00:00:00

abstract：BACKGROUND:The rate-corrected QT interval (QTc) is heritable, and the discovery of quantitative trait loci that influence the QTc would be an important step in identifying the genes responsible for life-threatening arrhythmias in the general population. We studied 66 pairs of unselected normal dizygotic (DZ) twin subje...

journal_title：Circulation

authors： Busjahn A,Knoblauch H,Faulhaber HD,Boeckel T,Rosenthal M,Uhlmann R,Hoehe M,Schuster H,Luft FC

更新日期：1999-06-22 00:00:00

abstract：BACKGROUND:Both a vascular endothelial cytochrome P450 (CYP450) product of arachidonic acid metabolism and the potassium ion (K(+)) have been identified as endothelium-derived hyperpolarizing factors (EDHFs) in animal vascular tissues. We studied the relative importance of EDHF, nitric oxide (NO), and prostacyclin (PGI...

journal_title：Circulation

authors： Coats P,Johnston F,MacDonald J,McMurray JJ,Hillier C

更新日期：2001-03-27 00:00:00

abstract：BACKGROUND:There are few data regarding medium-term outcome of coronary artery bypass grafting (CABG) in patients with severe left ventricular (LV) systolic dysfunction, particularly in the modern era, and even less assessing preoperative factors that might identify patients at highest risk. METHODS AND RESULTS:Three ...

journal_title：Circulation

authors： Hillis GS,Zehr KJ,Williams AW,Schaff HV,Orzulak TA,Daly RC,Mullany CJ,Rodeheffer RJ,Oh JK

更新日期：2006-07-04 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：:The acute hemodynamic effects of dobutamine and nitroprusside were compared in 19 patients with low output cardiac failure. At dosage levels yielding similar increases in cardiac index (12 patients), nitroprusside resulted in significantly lower arterial systolic and wedge pressures and did not increase heart rate sug...

journal_title：Circulation

authors： Berkowitz C,McKeever L,Croke RP,Jacobs WR,Loeb HS,Gunnar RM

更新日期：1977-12-01 00:00:00

abstract：:The relationship between fasting plasma cholesterol and triglyceride concentrations and the frequency and extensiveness of coronary artery disease (CAD) was studied in 496 subjects evaluated for chest pain by coronary arteriography at The Methodist Hospital. One hundred six of the patients had no CAD while 390 had 25%...

journal_title：Circulation

authors： Gotto AM,Gorry GA,Thompson JR,Cole JS,Trost R,Yeshurun D,DeBakey ME

更新日期：1977-11-01 00:00:00

abstract：:Little is known of the functional capacity of coronary collaterals in humans without occlusive coronary artery disease. We, therefore, measured peripheral coronary pressure (PCP) and retrograde flow (RF) from coronary arteries at aortic valve replacement in seven patients without occlusive coronary artery disease. Usi...

journal_title：Circulation

authors： Goldstein RE,Michaelis LL,Morrow AG,Epstein SE

更新日期：1975-01-01 00:00:00

abstract：BACKGROUND:Our aim was to compare the electron-beam CT (EBCT) features of coronary arteries in heart transplant recipients with those of biplane coronary angiography and intracoronary ultrasound (ICUS). METHODS AND RESULTS:We examined 112 heart transplant recipients (25 female; age, 17 to 69 years; median, 52 years) 1...

journal_title：Circulation

authors： Knollmann FD,Bocksch W,Spiegelsberger S,Hetzer R,Felix R,Hummel M

更新日期：2000-05-02 00:00:00

abstract：BACKGROUND:The coronary artery collateral circulation may be beneficial in protecting against myocardial ischemia and necrosis. However, there is a tremendous interindividual variability in the degree of new collateral formation in patients with coronary artery disease. The basis for this interindividual heterogeneity ...

journal_title：Circulation

authors： Schultz A,Lavie L,Hochberg I,Beyar R,Stone T,Skorecki K,Lavie P,Roguin A,Levy AP

更新日期：1999-08-03 00:00:00

abstract：BACKGROUND:Resting cardiac function does not necessarily affect exercise capacity. However, to determine whether it affects early dynamics of oxygen uptake (VO2) during exercise, we measured VO2 during a constant work rate and during incremental exercise testing in patients with a history of myocardial infarction. VO2 ...

journal_title：Circulation

authors： Koike A,Hiroe M,Adachi H,Yajima T,Yamauchi Y,Nogami A,Ito H,Miyahara Y,Korenaga M,Marumo F

更新日期：1994-11-01 00:00:00

abstract：:The rapid injection into the coronary circulation of solutions containing microbubbles produces an ultrasonic contrast effect in the myocardium. The time-intensity curves generated by sequential videodensitometric analysis of contrast intensity, which is corrected for myocardial background intensity, resembles the cur...

journal_title：Circulation

authors： Quiñones A,Cheirif BJ

更新日期：1991-05-01 00:00:00

abstract：BACKGROUND:Two types of ischemia, pacing-induced and coronary occlusion-induced, have different effects on left ventricular diastolic properties. During pacing-induced ischemia, the diastolic pressure-volume relation is said to shift upward, whereas during coronary occlusion, it is said to shift rightward or downward. ...

journal_title：Circulation

authors： Takano H,Glantz SA

更新日期：1995-05-01 00:00:00

abstract：BACKGROUND:Postprandial hyperglycemia may be a risk factor for cardiovascular disease. We compared the effects of two insulin secretagogues, repaglinide and glyburide, known to have different efficacy on postprandial hyperglycemia, on carotid intima-media thickness (CIMT) and markers of systemic vascular inflammation i...

journal_title：Circulation

authors： Esposito K,Giugliano D,Nappo F,Marfella R,Campanian Postprandial Hyperglycemia Study Group.

更新日期：2004-07-13 00:00:00

abstract：BACKGROUND:Although the left prepectoral site is preferred for "hot can" placement, this site is unavailable in some patients. We evaluated the influence of electrode location on defibrillation thresholds with alternative hot can and transvenous lead configurations. METHODS AND RESULTS:Three interrelated studies were ...

journal_title：Circulation

authors： Yamanouchi Y,Mowrey KA,Niebauer MJ,Tchou PJ,Wilkoff BL

更新日期：1997-12-16 00:00:00

abstract：BACKGROUND:Molecular imaging of thrombus within fissures of vulnerable atherosclerotic plaques requires sensitive detection of a robust thrombus-specific contrast agent. In this study, we report the development and characterization of a novel ligand-targeted paramagnetic molecular imaging agent with high avidity for fi...

journal_title：Circulation

authors： Flacke S,Fischer S,Scott MJ,Fuhrhop RJ,Allen JS,McLean M,Winter P,Sicard GA,Gaffney PJ,Wickline SA,Lanza GM

更新日期：2001-09-11 00:00:00

abstract：BACKGROUND:Administration of angiogenic factors stimulates neovascularization in ischemic tissues. However, there is no evidence that angiogenesis can be induced in normoperfused skeletal muscles. We tested the hypothesis that adenovirus-mediated intramuscular (IM) gene transfer of the 121-amino-acid form of vascular e...

journal_title：Circulation

authors： Gowdak LH,Poliakova L,Wang X,Kovesdi I,Fishbein KW,Zacheo A,Palumbo R,Straino S,Emanueli C,Marrocco-Trischitta M,Lakatta EG,Anversa P,Spencer RG,Talan M,Capogrossi MC

更新日期：2000-08-01 00:00:00