Body-surface maps of heart potentials: tentative localization of pre-excited areas in forty-two Wolff-Parkinson-White patients.

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:Symptomatic prolonged sinus pauses on termination of atrial fibrillation (AF) are an indication for pacemaker implantation. We evaluated sinus node function and clinical outcome in patients with prolonged sinus pauses on termination of arrhythmia who underwent ablation of paroxysmal AF. METHODS AND RESULTS:...

journal_title：Circulation

authors： Hocini M,Sanders P,Deisenhofer I,Jaïs P,Hsu LF,Scavée C,Weerasoriya R,Raybaud F,Macle L,Shah DC,Garrigue S,Le Metayer P,Clémenty J,Haïssaguerre M

更新日期：2003-09-09 00:00:00

abstract：BACKGROUND:In patients with mitral regurgitation, surgical intervention produces immediate improvement in symptoms, but the long-term incidence and significance of postoperative congestive heart failure are unknown. METHODS AND RESULTS:The long-term outcome of 576 operative survivors of surgical correction of pure mit...

journal_title：Circulation

authors： Enriquez-Sarano M,Schaff HV,Orszulak TA,Bailey KR,Tajik AJ,Frye RL

更新日期：1995-11-01 00:00:00

abstract：:Coronary artery bypass grafts, angioplasty, and thrombolysis are beneficial procedures for patients with coronary artery disease. However, these procedures can fail by mechanisms related to interactions between platelets and the damaged arterial wall. An experimental model for studying some of the mechanisms of platel...

journal_title：Circulation

authors： Folts J

更新日期：1991-06-01 00:00:00

abstract：:The directions and magnitudes of time-normalized P, QRS, and ST vectors, and other ECG parameters were analyzed during and after multistage exercise in 56 ostensibly healthy men aged 23 to 62. By selective averaging with a digital computer system a single representative beat was obtained from each stage. Measurements ...

journal_title：Circulation

authors： Simoons ML,Hugenholtz PG

更新日期：1975-10-01 00:00:00

abstract：:We studied isochronal maps of ventricular activation during ventricular arrhythmias induced by programmed premature stimulation in dogs 3-5 days after ligation of the left anterior descending coronary artery. The entire epicardial surface and selective intramural sites were recorded using a computerized multiplexing t...

journal_title：Circulation

authors： Mehra R,Zeiler RH,Gough WB,El-Sherif N

更新日期：1983-01-01 00:00:00

abstract：BACKGROUND:We report the single-institution, long-term results of 358 patients with simple transposition of the great arteries surviving >30 days after a Mustard (n=226, 1965 to 1980) or Senning (n=132, 1978 to 1992) procedure. METHODS AND RESULTS:Outcome measures included late death, reintervention, ECG and ambulator...

journal_title：Circulation

authors： Sarkar D,Bull C,Yates R,Wright D,Cullen S,Gewillig M,Clayton R,Tunstill A,Deanfield J

更新日期：1999-11-09 00:00:00

abstract：:In this study we quantitated the region of preserved myocardium between a subendocardial myocardial infarct (SEMI) and the endocardium in dogs and determined whether this preserved zone was within the region at risk and whether infarct extension could occur in this region. We also evaluated whether a similar subendoca...

journal_title：Circulation

authors： Forman R,Cho S,Factor SM,Kirk ES

更新日期：1983-01-01 00:00:00

abstract：BACKGROUND:Isoprostanes (iPs) are free radical-catalyzed products of arachidonic acid that reflect lipid peroxidation in vivo. Several iPs exert biological effects in vitro and may contribute to the functional consequences of oxidant stress. For example, iPF(2alpha)-III (8-iso PGF(2alpha)) and iPE(2)-III modulate plate...

journal_title：Circulation

authors： Audoly LP,Rocca B,Fabre JE,Koller BH,Thomas D,Loeb AL,Coffman TM,FitzGerald GA

更新日期：2000-06-20 00:00:00

abstract：:Finn Waagstein was born in Copenhagen in 1938. He graduated from Aarhus University Medical School in 1964. He received his cardiology training in the Sahlgrenska University Hospital at the University of Gothenburg, Sweden. He was appointed Associate Professor in 1980, and he assisted in establishing and directing the ...

journal_title：Circulation

authors： Waagstein F,Rutherford JD

更新日期：2017-09-05 00:00:00

abstract：BACKGROUND:Chlamydia pneumoniae stimulates chronic inflammation in vascular cells. Hydroxymethylglutaryl coenzyme A reductase inhibitors (statins) may have an ameliorating effect. We investigated possible mechanisms. METHODS AND RESULTS:We infected human macrophages that in coculture spread infection to vascular smoot...

journal_title：Circulation

authors： Dechend R,Gieffers J,Dietz R,Joerres A,Rupp J,Luft FC,Maass M

更新日期：2003-07-22 00:00:00

abstract：BACKGROUND:This study compared the efficacy of ischemic preconditioning (IPC) and sodium-hydrogen exchanger (NHE)-1 inhibition to reduce infarct size (IS) induced by a 90-minute ischemic insult and examined the interaction between NHE-1 inhibition and IPC. METHODS AND RESULTS:In a canine infarct model, either IPC, pro...

journal_title：Circulation

authors： Gumina RJ,Buerger E,Eickmeier C,Moore J,Daemmgen J,Gross GJ

更新日期：1999-12-21 00:00:00

abstract：BACKGROUND:Adipocyte-derived hormones may represent a mechanism linking insulin resistance to cardiovascular disease. In the present study, we evaluated the direct effects of resistin, a novel adipocyte-derived hormone, on endothelial activation. METHODS AND RESULTS:Endothelial cells (ECs) were incubated with human re...

journal_title：Circulation

authors： Verma S,Li SH,Wang CH,Fedak PW,Li RK,Weisel RD,Mickle DA

更新日期：2003-08-12 00:00:00

abstract：BACKGROUND:We measured the content and activities of components of the beta-adrenergic receptor-G protein-adenylate cyclase complex and adrenergic neurotransmitter levels in left and right ventricular myocardial preparations derived from 77 end-stage failing human hearts from patients with idiopathic dilated cardiomyop...

journal_title：Circulation

authors： Bristow MR,Anderson FL,Port JD,Skerl L,Hershberger RE,Larrabee P,O'Connell JB,Renlund DG,Volkman K,Murray J

更新日期：1991-09-01 00:00:00

abstract：BACKGROUND:Imaging of the flow convergence region (FCR) proximal to a regurgitant orifice has been shown to provide a method for quantifying the regurgitant flow rate. According to the continuity principle, the FCR is constituted by concentric hemispheric isovelocity surfaces centered at the orifice. The flow rate is c...

journal_title：Circulation

authors： Bargiggia GS,Tronconi L,Sahn DJ,Recusani F,Raisaro A,De Servi S,Valdes-Cruz LM,Montemartini C

更新日期：1991-10-01 00:00:00

abstract：BACKGROUND:Oxidized LDL (oxLDL) is thought to play a key role in the inflammatory response in the arterial vessel wall. METHODS AND RESULTS:In a prospective, nested, case-control study, the association between plasma oxLDL and risk of an acute coronary heart disease (CHD) event was investigated in men without prevalen...

journal_title：Circulation

authors： Meisinger C,Baumert J,Khuseyinova N,Loewel H,Koenig W

更新日期：2005-08-02 00:00:00

abstract：BACKGROUND:Coronary revascularization with bypass has been shown to improve survival in patients with coronary artery disease and left ventricular dysfunction. In these patients, use of nonsurgical revascularization with percutaneous transluminal coronary angioplasty (PTCA) is increasing, although their long-term outco...

journal_title：Circulation

authors： Holmes DR Jr,Detre KM,Williams DO,Kent KM,King SB 3rd,Yeh W,Steenkiste A

更新日期：1993-01-01 00:00:00

abstract：:Patients with heart failure frequently exhibit abnormal skeletal muscle metabolic responses to exercise, as assessed with 31P NMR. To investigate whether these metabolic abnormalities are due to intrinsic skeletal muscle changes, we performed gastrocnemius muscle biopsies on 22 patients with heart failure (peak VO2, 1...

journal_title：Circulation

authors： Mancini DM,Coyle E,Coggan A,Beltz J,Ferraro N,Montain S,Wilson JR

更新日期：1989-11-01 00:00:00

abstract：:The elimination of specific dietary cholesterol target recommendations in recent guidelines has raised questions about its role with respect to cardiovascular disease. This advisory was developed after a review of human studies on the relationship of dietary cholesterol with blood lipids, lipoproteins, and cardiovascu...

journal_title：Circulation

authors： Carson JAS,Lichtenstein AH,Anderson CAM,Appel LJ,Kris-Etherton PM,Meyer KA,Petersen K,Polonsky T,Van Horn L,American Heart Association Nutrition Committee of the Council on Lifestyle and Cardiometabolic Health; Council on Arteriosclero

更新日期：2020-01-21 00:00:00

abstract：:Contrast M-mode and two-dimensional ultrasonography of the inferior vena cava were performed in 65 patients with various acquired and congenital cardiac disorders. After saline was injected into a peripheral arm vein, the inferior vena cava was visualized by both methods in 60 patients (92%). The M-mode approach was b...

journal_title：Circulation

authors： Wise NK,Myers S,Fraker TD,Stewart JA,Kisslo JA

更新日期：1981-05-01 00:00:00

abstract：BACKGROUND:Early results of sirolimus-eluting stent implantation showed a nearly complete abolition of neointimal hyperplasia. The question remains, however, whether the early promising results will still be evident at long-term follow-up. The objective of our study was to evaluate the efficiency of sirolimus-eluting s...

journal_title：Circulation

authors： Degertekin M,Serruys PW,Foley DP,Tanabe K,Regar E,Vos J,Smits PC,van der Giessen WJ,van den Brand M,de Feyter P,Popma JJ

更新日期：2002-09-24 00:00:00

abstract：BACKGROUND:This article presents an update of the results achieved by modern surgery in congenital heart defects (CHDs) over the past 40 years regarding survival and the need for reoperations, especially focusing on the results from the past 2 decades. METHODS AND RESULTS:From 1971 to 2011, all 7038 patients <16 years...

journal_title：Circulation

authors： Erikssen G,Liestøl K,Seem E,Birkeland S,Saatvedt KJ,Hoel TN,Døhlen G,Skulstad H,Svennevig JL,Thaulow E,Lindberg HL

更新日期：2015-01-27 00:00:00

abstract：:Twelve consecutive patients who developed torsade de pointes (polymorphous ventricular tachycardia with marked QT prolongation, TdP) over a 4 year period were treated with intravenous injections of magnesium sulfate. In nine of the patients a single bolus of 2 g completely abolished the TdP within 1 to 5 min, and in t...

journal_title：Circulation

authors： Tzivoni D,Banai S,Schuger C,Benhorin J,Keren A,Gottlieb S,Stern S

更新日期：1988-02-01 00:00:00

abstract：BACKGROUND:Disease-associated electrophysiological alterations may contribute to the increased predisposition to arrhythmias of the hypertrophied or failing myocardium. An I(f)-like current is expressed in rat left ventricular myocytes (LVMs), its amplitude being linearly related to the severity of cardiac hypertrophy....

journal_title：Circulation

authors： Cerbai E,Pino R,Porciatti F,Sani G,Toscano M,Maccherini M,Giunti G,Mugelli A

更新日期：1997-02-04 00:00:00

abstract：:The elevated blood pressure and vascular resistance in patients with systemic hypertension are paralleled by a proportional rise in pressure and resistance in the lesser circulation. We evaluated the hypothesis that the increased systemic reaction to adrenergic stimulation is shared by the pulmonary vessels. For this ...

journal_title：Circulation

authors： Guazzi MD,De Cesare N,Fiorentini C,Galli C,Moruzzi P,Tamborini G

更新日期：1987-01-01 00:00:00

abstract：:This study was undertaken to provide a better anatomic description of the location and course of the left coronary artery within a commonly used ultrasonic tomographic plane. Twenty-three hearts were excised at autopsy and scanned in vitro. The locations of the left main (LMCA), left anterior descending (LAD), and lef...

journal_title：Circulation

authors： Rogers EW,Feigenbaum H,Weyman AE,Godley RW,Vakili ST

更新日期：1980-10-01 00:00:00

abstract：:The purpose of this study was to assess the sensitivity and specificity of two-dimensional echocardiography in detecting ischemia-induced transient myocardial dyskinesis. We prepared an open-chest dog model of severe coronary stenosis (90% reduction of circumflex coronary artery diameter) and induced ischemia by acute...

journal_title：Circulation

authors： Pandian NG,Kerber RE

更新日期：1982-09-01 00:00:00

abstract：:Verapamil is extremely effective in the treatment of patients with hypertrophic cardiomyopathy. However, the basic physiologic actions of the drug may lead to serious adverse effects. An appreciation of this and an understanding of when these adverse effects are most likely to occur will minimize the potential of vera...

journal_title：Circulation

authors： Epstein SE,Rosing DR

更新日期：1981-09-01 00:00:00

abstract：BACKGROUND:Consensus guidelines and hospital quality-of-care programs recommend that ST-elevation myocardial infarction patients achieve a door-to-balloon time of < or = 90 minutes. However, there are limited prospective data on specific measures to significantly reduce door-to-balloon time. METHODS AND RESULTS:We pro...

journal_title：Circulation

authors： Khot UN,Johnson ML,Ramsey C,Khot MB,Todd R,Shaikh SR,Berg WJ

更新日期：2007-07-03 00:00:00

abstract：:Contrary to opinions generally accepted in the past, CHD is very common in both African-American men and women, with incidence rates approaching those of US Caucasians. Higher prevalence of hypertension, diabetes, cigarette smoking, and obesity all contribute to the high level of CHD in African-Americans. Additional r...

journal_title：Circulation

authors： Curry CL

更新日期：1991-04-01 00:00:00