Quantitative detection of regional left ventricular contraction abnormalities by two-dimensional echocardiography. II. Accuracy in coronary artery disease.

abstract：BACKGROUND:Peak early-diastolic mitral annulus velocity (e') by tissue Doppler imaging has been introduced as a clinical marker of diastolic function. This study investigates whether lengthening load (early-diastolic load) and restoring forces are determinants of e' in addition to rate of left ventricular (LV) relaxati...

journal_title：Circulation

authors： Opdahl A,Remme EW,Helle-Valle T,Lyseggen E,Vartdal T,Pettersen E,Edvardsen T,Smiseth OA

更新日期：2009-05-19 00:00:00

abstract：BACKGROUND:The antiarrhythmic drugs quinidine and verapamil are known to block alpha1-adrenoceptors (alpha1ARs). Alpha1ARs are a heterogeneous family of three subtypes (alpha1A, alpha1B, and alpha1D), and little is known about the effects of quinidine and verapamil on the different human alpha1AR subtypes. METHODS AND...

journal_title：Circulation

authors： Shibata K,Hirasawa A,Foglar R,Ogawa S,Tsujimoto G

更新日期：1998-04-07 00:00:00

abstract：BACKGROUND:Few data have evaluated physician adherence to cardiovascular disease (CVD) prevention guidelines according to physician specialty or patient characteristics, particularly gender. METHODS AND RESULTS:An online study of 500 randomly selected physicians (300 primary care physicians, 100 obstetricians/gynecolo...

journal_title：Circulation

authors： Mosca L,Linfante AH,Benjamin EJ,Berra K,Hayes SN,Walsh BW,Fabunmi RP,Kwan J,Mills T,Simpson SL

更新日期：2005-02-01 00:00:00

abstract：:Left ventricular ejection fraction (LVEF) was measured by radionuclide angiography at rest and during supine bicycle exercise before and 3 months after coronary artery bypass graft surgery (CABG) in 20 patients with chronic stable angina. The right anterior oblique gated first-pass technique was used to assess LVEF re...

journal_title：Circulation

authors： Lim YL,Kalff V,Kelly MJ,Mason PJ,Currie PJ,Harper RW,Anderson ST,Federman J,Stirling GR,Pitt A

更新日期：1982-11-01 00:00:00

abstract：BACKGROUND:The Bleeding Academic Research Consortium (BARC) has recently proposed a unified definition of bleeding in patients receiving antithrombotic therapy. We investigated the relationship between bleeding events as defined by BARC and 1-year mortality in patients undergoing percutaneous coronary intervention (PCI...

journal_title：Circulation

authors： Ndrepepa G,Schuster T,Hadamitzky M,Byrne RA,Mehilli J,Neumann FJ,Richardt G,Schulz S,Laugwitz KL,Massberg S,Schömig A,Kastrati A

更新日期：2012-03-20 00:00:00

abstract：BACKGROUND:Although type B aortic dissection has been treated with beta blockers to lower the arterial blood pressure (BP), there has been little evidences about reduction in heart rate (HR). We assessed whether tight HR control improved the outcome of medical treatment in patients with aortic dissection. METHODS AND ...

journal_title：Circulation

authors： Kodama K,Nishigami K,Sakamoto T,Sawamura T,Hirayama T,Misumi H,Nakao K

更新日期：2008-09-30 00:00:00

abstract：BACKGROUND:Inotropic drugs are often used to treat acute, severe heart failure resulting from acute myocardial infarction and other unstable coronary artery syndromes. However, catecholamine inotropic agents may potentiate coronary thrombosis via a platelet alpha2-adrenergic mechanism, thus exacerbating the original pr...

journal_title：Circulation

authors： Sill JC,Bertha B,Berger I,Uhl C,Nugent M,Folts J

更新日期：1997-09-02 00:00:00

abstract：BACKGROUND:The myocardial velocity gradient (MVG) is a recent index of regional myocardial function derived from endocardial and epicardial velocities obtained by tissue Doppler imaging (TDI). This index might be useful for discriminating between physiological and pathological left ventricular hypertrophy (LVH) and for...

journal_title：Circulation

authors： Derumeaux G,Mulder P,Richard V,Chagraoui A,Nafeh C,Bauer F,Henry JP,Thuillez C

更新日期：2002-04-02 00:00:00

abstract：:Postoperative angiographic studies were carried out at 1 month, 1 year, and 10 years in two groups of patients: 238 patients with saphenous vein (SV) grafts and 40 patients with internal mammary artery (IMA) grafts. Cumulative patency was better in IMA grafts, both at 1 year (88.5% vs 76.4%) and at 10 years (84.1% vs ...

journal_title：Circulation

authors： Grondin CM,Campeau L,Lespérance J,Enjalbert M,Bourassa MG

更新日期：1984-09-01 00:00:00

abstract：BACKGROUND:Therapy with racemic compounds produces effects that can be attributed to both (S)- and (R)-enantiomers. Here we have tested the hypothesis that an enantiomer-enantiomer interaction would modulate the effects of treatment with a racemate, the antiarrhythmic propafenone. Previous studies have shown that while...

journal_title：Circulation

authors： Kroemer HK,Fromm MF,Bühl K,Terefe H,Blaschke G,Eichelbaum M

更新日期：1994-05-01 00:00:00

abstract：BACKGROUND:The maternal circulatory system and hormone balance both change dynamically during pregnancy, delivery, and the postpartum period. Although atrial natriuretic peptides and brain natriuretic peptides produced in the heart control circulatory homeostasis through their common receptor, NPR1, the physiologic and...

journal_title：Circulation

authors： Otani K,Tokudome T,Kamiya CA,Mao Y,Nishimura H,Hasegawa T,Arai Y,Kaneko M,Shioi G,Ishida J,Fukamizu A,Osaki T,Nagai-Okatani C,Minamino N,Ensho T,Hino J,Murata S,Takegami M,Nishimura K,Kishimoto I,Miyazato M,Hara

更新日期：2020-02-18 00:00:00

abstract：BACKGROUND:beta-Adrenergic receptor kinase 1 (beta ARK1) mediates beta-adrenergic receptor signaling via receptor phosphorylation, which results in functional uncoupling. The physiological importance of beta ARK1 on cardiac performance in the setting of ischemia and reperfusion injury, however, has not been clearly est...

journal_title：Circulation

authors： Chen EP,Bittner HB,Akhter SA,Koch WJ,Davis RD

更新日期：1998-11-10 00:00:00

abstract：BACKGROUND:It is not known whether subspecialty care by cardiologists improves outcomes in heart failure patients from the community over care by other physicians. METHODS AND RESULTS:Using administrative data, we monitored 38 702 consecutive patients with first-time hospitalization for heart failure in Ontario, Canad...

journal_title：Circulation

authors： Jong P,Gong Y,Liu PP,Austin PC,Lee DS,Tu JV

更新日期：2003-07-15 00:00:00

abstract：:Intermittent aortic root infusion of a cold solution containing either potassium chloride (KCl) or diltiazem was performed in 32 dogs during a 2-hour aortic clamping. Half of the dogs in each group had a critical stenosis created on the circumflex artery before cardiopulmonary bypass. Global left ventricular (LV) func...

journal_title：Circulation

authors： Vouhé PR,Hélias J,Robert P,Grondin CM

更新日期：1982-06-01 00:00:00

abstract：BACKGROUND:Whether catheter ablation (CA) is superior to amiodarone (AMIO) for the treatment of persistent atrial fibrillation (AF) in patients with heart failure is unknown. METHODS AND RESULTS:This was an open-label, randomized, parallel-group, multicenter study. Patients with persistent AF, dual-chamber implantable...

journal_title：Circulation

authors： Di Biase L,Mohanty P,Mohanty S,Santangeli P,Trivedi C,Lakkireddy D,Reddy M,Jais P,Themistoclakis S,Dello Russo A,Casella M,Pelargonio G,Narducci ML,Schweikert R,Neuzil P,Sanchez J,Horton R,Beheiry S,Hongo R,Hao S,

更新日期：2016-04-26 00:00:00

abstract：:Esophageal perforation is a dreaded complication of atrial fibrillation ablation that occurs in 0.1% to 0.25% of atrial fibrillation ablation procedures. Delayed diagnosis is associated with the development of atrial-esophageal fistula (AEF) and increased mortality. The relationship between the esophagus and the left ...

journal_title：Circulation

authors： Kapur S,Barbhaiya C,Deneke T,Michaud GF

更新日期：2017-09-26 00:00:00

abstract：BACKGROUND:The outcome of patients with corrected transposition of the great arteries (CTGA) is variably affected by associated intracardiac defects, tricuspid valve competence, and systemic right ventricular (RV) function. The relative importance of these factors in long-term outcome has not been evaluated. METHODS A...

journal_title：Circulation

authors： Prieto LR,Hordof AJ,Secic M,Rosenbaum MS,Gersony WM

更新日期：1998-09-08 00:00:00

abstract：BACKGROUND:Patients with chronic stable angina are poorly characterized in terms of biomarkers that help in the assessment of prognosis. We investigated whether plasma levels of N-terminal pro-brain natriuretic peptide (NT-proBNP) may be used as a prognostic marker in patients with chronic stable angina treated with co...

journal_title：Circulation

authors： Ndrepepa G,Braun S,Niemöller K,Mehilli J,von Beckerath N,von Beckerath O,Vogt W,Schömig A,Kastrati A

更新日期：2005-10-04 00:00:00

abstract：:The concept of plaque stabilization was developed to explain how lipid lowering could decrease adverse coronary events without a substantial reduction in the regression of atherosclerosis. Plaques were stabilized by reducing serum cholesterol leading to several favorable pathobiological changes in the vessel wall of l...

journal_title：Circulation

authors： Ambrose JA,Martinez EE

更新日期：2002-04-23 00:00:00

abstract：BACKGROUND:Early detection of adverse effects of novel therapies and understanding of their mechanisms could improve the safety and efficiency of drug development. We have retrospectively applied large-scale proteomics to blood samples from ILLUMINATE (Investigation of Lipid Level Management to Understand its Impact in...

journal_title：Circulation

authors： Williams SA,Murthy AC,DeLisle RK,Hyde C,Malarstig A,Ostroff R,Weiss SJ,Segal MR,Ganz P

更新日期：2018-03-06 00:00:00

abstract：BACKGROUND:We have previously demonstrated vasculoprotective effects after repeated intravenous administration of recombinant apolipoprotein A-IMilano (apoA-Im)/phospholipid complex. In this study, we sought to determine the effects of local recombinant apoA-Im/1-palmitoyl,2-oleoyl phosphatidylcholine complex (ETC-216)...

journal_title：Circulation

authors： Kaul S,Rukshin V,Santos R,Azarbal B,Bisgaier CL,Johansson J,Tsang VT,Chyu KY,Cercek B,Mirocha J,Shah PK

更新日期：2003-05-27 00:00:00

abstract：:The ameliorative effect of antiplatelet therapy on atherogenesis of vein grafts was assessed in autologous cephalic veins grafted into femoral arteries of 16 normolipemic and 11 hyperlipemic stump-tailed macaque monkeys. Before grafting, one half of each vein was distended at high pressure (700 mm Hg) and the other ha...

journal_title：Circulation

authors： Bonchek LI,Boerboom LE,Olinger GN,Pepper JR,Munns J,Hutchinson L,Kissebah AH

更新日期：1982-08-01 00:00:00

abstract：:Increased ventricular volume is one of the most powerful predictors of reduced survival in patients with heart disease. Despite its well-documented prognostic significance, the magnitude of the progression of ventricular dilatation from the acute to the chronic phase of myocardial infarction has only recently been app...

journal_title：Circulation

authors： Pfeffer MA,Pfeffer JM

更新日期：1987-05-01 00:00:00

abstract：:BACKGROUND. The fenestrated Fontan operation has been applied to high-risk patients with univentricular hearts, resulting in improved survival. The purpose of this study was to determine the hemodynamic factors responsible for these improved results. METHODS AND RESULTS. We performed the fenestrated Fontan operation i...

journal_title：Circulation

authors： Mavroudis C,Zales VR,Backer CL,Muster AJ,Latson LA

更新日期：1992-11-01 00:00:00

abstract：BACKGROUND:Alterations in myocardial function and systemic vascular tone are well documented in congestive heart failure (CHF), but little information is available on the effects of CHF on pulmonary vessels. We examined the mechanisms of tone regulation of canine pulmonary arteries during pacing-induced CHF. METHODS A...

journal_title：Circulation

authors： Mathew R,Wang J,Gewitz MH,Hintze TH,Wolin MS

更新日期：1993-05-01 00:00:00

abstract：:The pulmonary perfusion of 25 children who had total surgical correction of tetralogy of Fallot was evaluated by radionuclide perfusion scans. In addition, 18 had 133Xe ventilation studies. Eighteen of the children previously had palliative systemic-pulmonary shunts; 14 had aortic-pulmonary shunts (Waterston or Potts-...

journal_title：Circulation

authors： Alderson PO,Boonvisut S,McKnight RC,Hartman AF Jr

更新日期：1976-02-01 00:00:00

abstract：BACKGROUND:In myocardial cells, relaxation is governed primarily by the sarcoplasmic reticulum (SR) Ca(2+)-ATPase transporting enzyme, which regulates Ca2+ sequestration into the SR. Human and experimental cardiomyopathies are associated with reduced SR Ca(2+)-ATPase activity. METHODS AND RESULTS:To modify intracellul...

journal_title：Circulation

authors： Hajjar RJ,Kang JX,Gwathmey JK,Rosenzweig A

更新日期：1997-01-21 00:00:00

abstract：:Between 1970 and 1987, 112 patients were diagnosed as having thromboangiitis obliterans (TAO). The age was 42 +/- 11 years (mean +/- SD; range, 20-75 years); 23% were women, and 7% were more than 60 years old when they were first diagnosed. Ischemic ulcerations were present in 85 (76%) patients: 24 (28%) patients with...

journal_title：Circulation

authors： Olin JW,Young JR,Graor RA,Ruschhaupt WF,Bartholomew JR

更新日期：1990-11-01 00:00:00

abstract：BACKGROUND:MicroRNAs (miRs) participate in many cardiac pathophysiological processes, including ischemia/reperfusion (I/R)-induced cardiac injury. Recently, we and others observed that miR-494 was downregulated in murine I/R-injured and human infarcted hearts. However, the functional consequence of miR-494 in response ...

journal_title：Circulation

authors： Wang X,Zhang X,Ren XP,Chen J,Liu H,Yang J,Medvedovic M,Hu Z,Fan GC

更新日期：2010-09-28 00:00:00

abstract：:One thousand four Medtronic Hall valves (601 mitral, 398 aortic, and five tricuspid) were implanted in 847 patients between December 1979 and June 1987. Total experience at the end of June 1987 was 2,640 patient-years of follow-up. Prothrombin time ratios were reviewed for all patients (16,866 observations), and these...

journal_title：Circulation

authors： Butchart EG,Lewis PA,Grunkemeier GL,Kulatilake N,Breckenridge IM

更新日期：1988-09-01 00:00:00