Early atrial fibrillation during evolving myocardial infarction: a consequence of impaired left atrial perfusion.

abstract：:Retrograde coronary artery flow was observed angiographically in 43 patients with aortic stenosis and/or regurgitation. In the 24 patients with pure or predominant aortic stenosis, retrograde flow was seen in all 24 during end-systole. In the eight patients with pure aortic regurgitation, retrograde flow was seen main...

journal_title：Circulation

authors： Carroll RJ,Falsetti HL

更新日期：1976-09-01 00:00:00

abstract：BACKGROUND:Cardiac troponin and B-type natriuretic peptide (BNP) concentrations are associated with adverse cardiovascular outcome in primary prevention populations. Whether statin therapy modifies this association is poorly understood. METHODS AND RESULTS:We measured high-sensitivity cardiac troponin I (hsTnI) in 12 ...

journal_title：Circulation

authors： Everett BM,Zeller T,Glynn RJ,Ridker PM,Blankenberg S

更新日期：2015-05-26 00:00:00

abstract：:Preliminary clinical and laboratory observations suggest that nifedipine might prevent progression of threatened myocardial infarction by reversing coronary spasm or might limit necrosis during the course of acute myocardial infarction. We screened 3143 patients with ischemic pain of greater than 45 min duration and r...

journal_title：Circulation

authors： Muller JE,Morrison J,Stone PH,Rude RE,Rosner B,Roberts R,Pearle DL,Turi ZG,Schneider JF,Serfas DH

更新日期：1984-04-01 00:00:00

abstract：:In seven patients who underwent Fontan procedures but in whom no valves were inserted, dynamics of right heart flow were evaluated with the use of a catheter-tipped velocity transducer, pulsed Doppler echocardiography, and angiocardiography. Right atrial (RA) contraction caused a forward flow to the pulmonary artery (...

journal_title：Circulation

authors： Nakazawa M,Nakanishi T,Okuda H,Satomi G,Nakae S,Imai Y,Takao A

更新日期：1984-02-01 00:00:00

abstract：:Dual antiplatelet therapy with aspirin and a thienopyridine has been shown to reduce cardiac events after coronary stenting. However, many patients and healthcare providers prematurely discontinue dual antiplatelet therapy, which greatly increases the risk of stent thrombosis, myocardial infarction, and death. This ad...

journal_title：Circulation

authors： Grines CL,Bonow RO,Casey DE Jr,Gardner TJ,Lockhart PB,Moliterno DJ,O'Gara P,Whitlow P,American Heart Association.,American College of Cardiology.,Society for Cardiovascular Angiography and Interventions.,American College of Surgeon

更新日期：2007-02-13 00:00:00

abstract：BACKGROUND:Left ventricular (LV) mass is an important predictor of heart failure and cardiovascular mortality, yet determinants of LV mass are incompletely understood. Pulmonary hyperinflation in chronic obstructive pulmonary disease (COPD) may contribute to changes in intrathoracic pressure that increase LV wall stres...

journal_title：Circulation

authors： Smith BM,Kawut SM,Bluemke DA,Basner RC,Gomes AS,Hoffman E,Kalhan R,Lima JA,Liu CY,Michos ED,Prince MR,Rabbani L,Rabinowitz D,Shimbo D,Shea S,Barr RG

更新日期：2013-04-09 00:00:00

abstract：BACKGROUND:Limited information exists on the intermediate-term graft patency and 5-year clinical outcomes of patients receiving saphenous vein grafts with multiple (m-SVG) versus single distal targets (s-SVG) during coronary artery bypass graft (CABG) surgery in the current era. METHODS AND RESULTS:We studied the asso...

journal_title：Circulation

authors： Mehta RH,Ferguson TB,Lopes RD,Hafley GE,Mack MJ,Kouchoukos NT,Gibson CM,Harrington RA,Califf RM,Peterson ED,Alexander JH,Project of Ex-vivo Vein Graft Engineering via Transfection (PREVENT) IV Investigators.

更新日期：2011-07-19 00:00:00

abstract：BACKGROUND:In our multicenter study of the total cavopulmonary connection (TCPC), a cohort of patients with long-segment left pulmonary artery (LPA) stenosis was observed (35%). The clinically recognized detrimental effects of LPA stenosis motivated a computational fluid dynamic simulation study within 3-dimensional pa...

journal_title：Circulation

authors： Pekkan K,Kitajima HD,de Zelicourt D,Forbess JM,Parks WJ,Fogel MA,Sharma S,Kanter KR,Frakes D,Yoganathan AP

更新日期：2005-11-22 00:00:00

abstract：:The acute hemodynamic effects of captopril were evaluated at cardiac catheterization in 16 children (age, 0.3-18 years) with cardiomyopathy. Twelve children had congestive cardiomyopathy, whereas four had restrictive cardiomyopathy. Hemodynamic measurements were obtained 30 and 60 minutes after the oral administration...

journal_title：Circulation

authors： Bengur AR,Beekman RH,Rocchini AP,Crowley DC,Schork MA,Rosenthal A

更新日期：1991-02-01 00:00:00

abstract：BACKGROUND:Platelet-rich thrombus formation is a critical event in the onset of cardiovascular disease. Because ADP plays a significant role in platelet aggregation, its metabolism is important in the regulation of platelet activation and recruitment. Ectonucleoside triphosphate diphosphohydrolase (E-NTPDase) is a key ...

journal_title：Circulation

authors： Furukoji E,Matsumoto M,Yamashita A,Yagi H,Sakurai Y,Marutsuka K,Hatakeyama K,Morishita K,Fujimura Y,Tamura S,Asada Y

更新日期：2005-02-15 00:00:00

abstract：BACKGROUND:We previously demonstrated that ischemic postconditioning decreases creatine kinase release, a surrogate marker for infarct size, in patients with acute myocardial infarction. Our objective was to determine whether ischemic postconditioning could afford (1) a persistent infarct size limitation and (2) an imp...

journal_title：Circulation

authors： Thibault H,Piot C,Staat P,Bontemps L,Sportouch C,Rioufol G,Cung TT,Bonnefoy E,Angoulvant D,Aupetit JF,Finet G,André-Fouët X,Macia JC,Raczka F,Rossi R,Itti R,Kirkorian G,Derumeaux G,Ovize M

更新日期：2008-02-26 00:00:00

abstract：:Vigorous hyperventilation was induced for five minutes immediately after a five-minute infusion of 100 ml of Tris-buffer (pH 10) in nine patients with Prinzmetal's variant angina. In eight of the patients, chest pain with ischemic changes in the electrocardiogram occurred during this procedure or within five minutes a...

journal_title：Circulation

authors： Yasue H,Nagao M,Omote S,Takizawa A,Miwa K,Tanaka S

更新日期：1978-07-01 00:00:00

abstract：BACKGROUND:A recent study has shown that the implantable atrial defibrillator can restore sinus rhythm in patients with recurrent atrial fibrillation when therapy was delivered under physician observation. The objective of this study was to evaluate the safety and efficacy of ambulatory use of the implantable atrial de...

journal_title：Circulation

authors： Daoud EG,Timmermans C,Fellows C,Hoyt R,Lemery R,Dawson K,Ayers GM

更新日期：2000-09-19 00:00:00

abstract：:To assess the results of cardiac repair utilizing a right ventricular to pulmonary artery conduit, we reviewed postoperative hemodynamic data in 16 patients catheterized 0.5 to 5 years after repair. In 12 patients, a Hancock conduit (dacron conduit with porcine valve) was used; the conduit in the remaining four patien...

journal_title：Circulation

authors： Rocchini AP,Rosenthal A,Keane JF,Castaneda AR,Nadas AS

更新日期：1976-12-01 00:00:00

abstract：BACKGROUND:To examine the effect of plasminogen activator therapy on vascular permeability, we used a modified rabbit mesenteric model of extravascular tissue accumulation of radiolabeled albumin. METHODS AND RESULTS:Albumin deposition was measured after saline, tissue-type plasminogen activator (t-PA; 0.86 mg/kg for ...

journal_title：Circulation

authors： Rudd MA,Johnstone MT,Rabbani LE,George D,Ware JA,Loscalzo J

更新日期：1991-12-01 00:00:00

abstract：BACKGROUND:Endothelial integrity is essential for maintaining vascular homeostasis, and endothelial denudation results in neointimal thickening. Balloon-expandable endovascular stents provide a luminal scaffolding within atherosclerotic arteries with minimal direct contact between balloon and endothelium. We wondered w...

journal_title：Circulation

authors： Rogers C,Parikh S,Seifert P,Edelman ER

更新日期：1996-12-01 00:00:00

abstract：BACKGROUND:Radiofrequency ablation of type 1 atrial flutter (AF1) has recently evolved toward an anatomically guided procedure directed to isthmuses at the lower part of the right atrium (RA). However, different types of block at these isthmuses may be observed and potentially correlated with different late outcomes. I...

journal_title：Circulation

authors： Poty H,Saoudi N,Nair M,Anselme F,Letac B

更新日期：1996-12-15 00:00:00

abstract：:We have recently demonstrated that exercise training can induce important hemodynamic and metabolic adaptations in patients with chronic heart failure due to severe left ventricular dysfunction. This study examines the accompanying changes in submaximal exercise performance and the ventilatory response to exercise in ...

journal_title：Circulation

authors： Sullivan MJ,Higginbotham MB,Cobb FR

更新日期：1989-02-01 00:00:00

abstract：BACKGROUND:Although surgery is indicated in patients with mitral regurgitation (MR) when left ventricular (LV) end-systolic (LVES) dimension is >40 mm, LV ejection fraction may decrease after mitral valve surgery. We hypothesize that significant LV remodeling before surgery is not reflected by standard echocardiographi...

journal_title：Circulation

authors： Schiros CG,Dell'Italia LJ,Gladden JD,Clark D 3rd,Aban I,Gupta H,Lloyd SG,McGiffin DC,Perry G,Denney TS Jr,Ahmed MI

更新日期：2012-05-15 00:00:00

abstract：BACKGROUND:Recent advances in surgical techniques for the repair of left ventricular aneurysms (LVAs) include the use of an endoventricular patch to exclude the aneurysm cavity. This technique has replaced conventional linear plication of the aneurysm. The endoventricular patch technique remodels the left ventricular c...

journal_title：Circulation

authors： Grossi EA,Chinitz LA,Galloway AC,Delianides J,Schwartz DS,McLoughlin DE,Keller N,Kronzon I,Spencer FC,Colvin SB

更新日期：1995-11-01 00:00:00

abstract：BACKGROUND:Long-term comparative data of first-generation drug-eluting stents are scarce. We investigated clinical and angiographic outcomes of sirolimus-eluting (SES) and paclitaxel-eluting stents (PES) at 5 years as part of the Sirolimus-Eluting Versus Paclitaxel-Eluting Stents for Coronary Revascularization (SIRTAX)...

journal_title：Circulation

authors： Räber L,Wohlwend L,Wigger M,Togni M,Wandel S,Wenaweser P,Cook S,Moschovitis A,Vogel R,Kalesan B,Seiler C,Eberli F,Lüscher TF,Meier B,Jüni P,Windecker S

更新日期：2011-06-21 00:00:00

abstract：BACKGROUND:The endothelium acts as the sensor of shear stress and as the mediator of flow-induced changes in vessel tone and structure. The purpose of this study was to delineate the signal transduction pathway of flow-induced release of endothelium-derived relaxing factor (EDRF). METHODS AND RESULTS:We used a shear s...

journal_title：Circulation

authors： Ohno M,Gibbons GH,Dzau VJ,Cooke JP

更新日期：1993-07-01 00:00:00

abstract：BACKGROUND:Genetic testing for long-QT syndrome (LQTS) has diagnostic, prognostic, and therapeutic implications. Hundreds of causative mutations in 12 known LQTS-susceptibility genes have been identified. Genetic testing that includes the 3 most commonly mutated genes is available clinically. Distinguishing pathogenic ...

journal_title：Circulation

authors： Kapa S,Tester DJ,Salisbury BA,Harris-Kerr C,Pungliya MS,Alders M,Wilde AA,Ackerman MJ

更新日期：2009-11-03 00:00:00

abstract：:Left ventricular function was compared in 18 normal sedentary controls (mean age 28 years, range 22 - 34 years) and nine endurance-trained athletes (mean age 19 years, range 15 - 25 years) at rest and during supine bicycle exercise. Gated radionuclide angiocardiograms were performed at rest and at each level of graded...

journal_title：Circulation

authors： Bar-Shlomo BZ,Druck MN,Morch JE,Jablonsky G,Hilton JD,Feiglin DH,McLaughlin PR

更新日期：1982-03-01 00:00:00

abstract：:The electrophysiologic effects of amiodarone were examined in 13 dogs that received 30 g amiodarone orally during 3 weeks and compared with 13 control dogs that did not receive amiodarone. Longitudinal and transverse epicardial conduction velocities were estimated with a square array of 64 closely spaced electrodes an...

journal_title：Circulation

authors： Anderson KP,Walker R,Dustman T,Lux RL,Ershler PR,Kates RE,Urie PM

更新日期：1989-04-01 00:00:00

abstract：BACKGROUND:For a long time, enteroviruses have been considered to be the most common cause of acute viral myocarditis (MC), with possible transition from MC to dilated cardiomyopathy (DCM). Recent investigations have shown, however, that other viruses are also frequently encountered in MC patients, suggesting that pers...

journal_title：Circulation

authors： Kühl U,Pauschinger M,Noutsias M,Seeberg B,Bock T,Lassner D,Poller W,Kandolf R,Schultheiss HP

更新日期：2005-02-22 00:00:00

abstract：:Although for most children the process of atherosclerosis is subclinical, dramatically accelerated atherosclerosis occurs in some pediatric disease states, with clinical coronary events occurring in childhood and very early adult life. As with most scientific statements about children and the future risk for cardiovas...

journal_title：Circulation

authors： Kavey RE,Allada V,Daniels SR,Hayman LL,McCrindle BW,Newburger JW,Parekh RS,Steinberger J,American Heart Association Expert Panel on Population and Prevention Science.,American Heart Association Council on Cardiovascular Disease in the

更新日期：2006-12-12 00:00:00

abstract：:To obtain insight into the mechanism(s) responsible for the direct visualization of acute myocardial infarcts by myocardial scintigraphy with technetium-99m stannous pyrophosphate (99mTc-PYP), scintigraphic and morphologic studies were performed in 22 dogs subjected to occlusion of the proximal left anterior descendin...

journal_title：Circulation

authors： Buja LM,Parkey RW,Dees JH,Stokely EM,Harris RA Jr,Bonte FJ,Willerson JT

更新日期：1975-10-01 00:00:00

abstract：:Nineteen patients with chronic low output cardiac failure were studied before, during and after infusion of phentolamine in doses of 10, 20, 30 and 40 microgram/kg/min. Significant reduction of left- and right-sided pressures and increases in cardiac index and heart rate (HR) were present within 15 minutes of starting...

journal_title：Circulation

authors： Stern MA,Gohlke HK,Loeb HS,Croke RP,Gunnar RM

更新日期：1978-07-01 00:00:00

abstract：BACKGROUND:In patients with atrial fibrillation (AF), the risk of thromboembolic events (TEs) is variable and is influenced by the presence and number of comorbid conditions. The effect of percutaneous left atrial radiofrequency ablation (LARFA) of AF on the risk of TEs is unclear. METHODS AND RESULTS:LARFA was perfor...

journal_title：Circulation

authors： Oral H,Chugh A,Ozaydin M,Good E,Fortino J,Sankaran S,Reich S,Igic P,Elmouchi D,Tschopp D,Wimmer A,Dey S,Crawford T,Pelosi F Jr,Jongnarangsin K,Bogun F,Morady F

更新日期：2006-08-22 00:00:00