Two-dimensional echocardiography in experimental coronary stenosis. I. Sensitivity and specificity in detecting transient myocardial dyskinesis: comparison with sonomicrometers.

abstract：:Sequential control angiographic examinations were performed at 2 weeks, 1 year, 5 to 7 years, and 10 to 12 years after aortocoronary saphenous vein bypass surgery in 82 unselected patients. Graft modifications consisting of wall irregularities and obstructive lesions of various severity and shapes that were found to d...

journal_title：Circulation

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

更新日期：1983-09-01 00:00:00

abstract：BACKGROUND:The physiological assessment of angiographically intermediate-severity stenoses remains problematic. Functional measurements of poststenotic intracoronary Doppler coronary flow reserve can be performed in humans but have not been correlated with hyperemic myocardial perfusion imaging or angiographic data in ...

journal_title：Circulation

authors： Miller DD,Donohue TJ,Younis LT,Bach RG,Aguirre FV,Wittry MD,Goodgold HM,Chaitman BR,Kern MJ

更新日期：1994-05-01 00:00:00

abstract：BACKGROUND:The risk of syncope occurring while driving has obvious implications for personal and public safety. We aimed to define the clinical characteristics, causes, and prognosis of syncope while driving. METHODS AND RESULTS:In this case-control study of consecutive patients evaluated for syncope from 1996 through...

journal_title：Circulation

authors： Sorajja D,Nesbitt GC,Hodge DO,Low PA,Hammill SC,Gersh BJ,Shen WK

更新日期：2009-09-15 00:00:00

abstract：BACKGROUND:The characteristics of transmembrane potential (TMP) at the core of functional reentry in the atrium are not well understood. METHODS AND RESULTS:In protocol 1 (11 dogs), isolated perfused canine right atria were mapped from the endocardial surface while simultaneous TMPs were recorded from the epicardial s...

journal_title：Circulation

authors： Athill CA,Ikeda T,Kim YH,Wu TJ,Fishbein MC,Karagueuzian HS,Chen PS

更新日期：1998-10-13 00:00:00

abstract：:BACKGROUND. A pace mapping technique using body surface potential maps (BSPMs) was developed to guide the positioning of an ablation catheter at the ventricular insertion point of accessory pathways (AP) in patients with the Wolff-Parkinson-White syndrome (WPW). METHODS AND RESULTS. The study was performed on 30 WPW p...

journal_title：Circulation

authors： Dubuc M,Nadeau R,Tremblay G,Kus T,Molin F,Savard P

更新日期：1993-01-01 00:00:00

abstract：BACKGROUND:Several noninvasive methods are available to investigate the severity of extracoronary atherosclerotic disease. No population-based study has yet examined whether differences exist between these measures with regard to their predictive value for myocardial infarction (MI) or whether a given measure of athero...

journal_title：Circulation

authors： van der Meer IM,Bots ML,Hofman A,del Sol AI,van der Kuip DA,Witteman JC

更新日期：2004-03-09 00:00:00

abstract：:This two-part article provides an overview of the global burden of atherothrombotic cardiovascular disease. Part I initially discusses the epidemiologic transition which has resulted in a decrease in deaths in childhood due to infections, with a concomitant increase in cardiovascular and other chronic diseases; and th...

journal_title：Circulation

authors： Yusuf S,Reddy S,Ounpuu S,Anand S

更新日期：2001-11-27 00:00:00

abstract：BACKGROUND:Cardiac growth and function may be modulated in part by trophic effects of neurohormones. Specifically, aldosterone has been shown to stimulate the growth of cardiac myocytes and the accumulation of cardiac extracellular matrix proteins. Moreover, a variant of the aldosterone synthase gene (a cytosine/thymid...

journal_title：Circulation

authors： Schunkert H,Hengstenberg C,Holmer SR,Broeckel U,Luchner A,Muscholl MW,Kürzinger S,Döring A,Hense HW,Riegger GA

更新日期：1999-05-04 00:00:00

abstract：:Although coronary thrombus overlying a disrupted atherosclerotic plaque has long been considered the hallmark and the primary therapeutic target for acute myocardial infarction (MI), multiple other mechanisms are now known to cause or contribute to MI. It is further recognized that an MI is just one of many types of a...

journal_title：Circulation

authors： DeFilippis AP,Chapman AR,Mills NL,de Lemos JA,Arbab-Zadeh A,Newby LK,Morrow DA

更新日期：2019-11-12 00:00:00

abstract：BACKGROUND:Calcineurin is a calcium-regulated phosphatase that plays a major role in cardiac hypertrophy. We previously described that alternative splicing of the calcineurin Aβ (CnAβ) gene generates the CnAβ1 isoform, with a unique C-terminal region that is different from the autoinhibitory domain present in all other...

journal_title：Circulation

authors： Felkin LE,Narita T,Germack R,Shintani Y,Takahashi K,Sarathchandra P,López-Olañeta MM,Gómez-Salinero JM,Suzuki K,Barton PJ,Rosenthal N,Lara-Pezzi E

更新日期：2011-06-21 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：:Between 1972 and 1984, 100 consecutive neonates (less than or equal to 30 days old) underwent repair of coarctation of the aorta. Mean (+/- SD) age at operation was 12.0 +/- 8.0 days; mean weight was 3.1 +/- 0.5 kg. Simple coarctation was present in 29 patients (group I), 32 patients had additional ventricular septal ...

journal_title：Circulation

authors： Ziemer G,Jonas RA,Perry SB,Freed MD,Castaneda AR

更新日期：1986-09-01 00:00:00

abstract：BACKGROUND:Prolonged survival of xenografted neonatal cardiomyocytes was achieved by blocking the CD28/B7 costimulatory pathway via CTLA4-Ig gene transfer. We examined the long-term survival of xenografted neonatal cardiomyocytes by adenovirus-mediated CTLA4-Ig expression and transient CD40 blockade with anti-CD40L mon...

journal_title：Circulation

authors： Li TS,Ito H,Kajiwara K,Hamano K

更新日期：2003-10-07 00:00:00

abstract：:The automatic implantable cardioverter-defibrillator (ICD) is highly effective in reducing sudden death rates in patients with life-threatening ventricular tachyarrhythmias. However, the magnitude of the ability of the ICD to improve overall survival is less certain. Data supporting the contention that the ICD prolong...

journal_title：Circulation

authors： Sweeney MO,Ruskin JN

更新日期：1994-04-01 00:00:00

abstract：:Physiological studies of the type we have described, when performed in patients with the WPW syndrome, can yield diagnostic information regarding the mechanism of arrhythmia, demonstrate functional properties of therapeutic import, facilitate therapeutic decision-making about drug regimens and presumptively localize t...

journal_title：Circulation

authors： Gallagher JJ,Gilbert M,Svenson RH,Sealy WC,Kasell J,Wallace AG

更新日期：1975-05-01 00:00:00

abstract：BACKGROUND:The safety and efficacy of percutaneous coronary intervention of de novo lesions in unprotected left main coronary arteries remains an unresolved issue. METHODS AND RESULTS:We analyzed 67 consecutive patients treated with the following devices: 39 with stents, 12 with rotational atherectomy plus stents, 13 ...

journal_title：Circulation

authors： Takagi T,Stankovic G,Finci L,Toutouzas K,Chieffo A,Spanos V,Liistro F,Briguori C,Corvaja N,Albero R,Sivieri G,Paloschi R,Di Mario C,Colombo A

更新日期：2002-08-06 00:00:00

abstract：BACKGROUND:The FRANCE-2 registry (French Aortic National Corevalve and Edwards) previously reported good early- and medium-term clinical and echocardiographic efficacy for transcatheter aortic valve replacement. We here report 5-year follow-up results from the registry. METHODS:The registry includes all consecutive pa...

journal_title：Circulation

authors： Didier R,Eltchaninoff H,Donzeau-Gouge P,Chevreul K,Fajadet J,Leprince P,Leguerrier A,Lièvre M,Prat A,Teiger E,Lefevre T,Tchetché D,Carrié D,Himbert D,Albat B,Cribier A,Sudre A,Blanchard D,Rioufol G,Collet F,Houel

更新日期：2018-12-04 00:00:00

abstract：BACKGROUND:Intraoperative mapping studies suggest that an isthmus of myocardium between the mitral valve annulus and the border of inferior myocardial infarction may play a role in the genesis of ventricular tachycardia. We examined the frequency with which a slow conduction zone within the mitral isthmus was critical ...

journal_title：Circulation

authors： Wilber DJ,Kopp DE,Glascock DN,Kinder CA,Kall JG

更新日期：1995-12-15 00:00:00

abstract：BACKGROUND:The maintenance and termination of reentry arrhythmias are determined by tissue properties such as refractoriness and conduction velocity. Although the effects of Na(+) and K(+) channel block on electrophysiological properties and defibrillation threshold (DFT) have been studied, little is known about the ef...

journal_title：Circulation

authors： Qi X,Varma P,Newman D,Dorian P

更新日期：2001-09-25 00:00:00

abstract：:Trapidil (triazolopyrimidine) possesses activity against platelet-derived growth factor-induced cellular proliferation in vitro and intimal proliferation in vivo. The objective of this study was to determine if trapidil could prevent restenosis in experimentally induced atherosclerotic rabbits. New Zealand White rabbi...

journal_title：Circulation

authors： Liu MW,Roubin GS,Robinson KA,Black AJ,Hearn JA,Siegel RJ,King SB 3rd

更新日期：1990-03-01 00:00:00

abstract：BACKGROUND:The aim of this study was to determine whether antianginal medications affect the prognostic value of pharmacological stress echocardiography. METHODS AND RESULTS:From the EPIC-EDIC Data Bank, 7333 patients (5452 men; age; 59+/-10 years) underwent pharmacological stress echocardiography with either high-dos...

journal_title：Circulation

authors： Sicari R,Cortigiani L,Bigi R,Landi P,Raciti M,Picano E,Echo-Persantine International Cooperative (EPIC) Study Group.,Echo-Dobutamine International Cooperative (EDIC) Study Group.

更新日期：2004-05-25 00:00:00

abstract：:Two guidelines from the American College of Cardiology (ACC), the American Heart Association (AHA), and collaborating societies address the risk of aortic dissection in patients with bicuspid aortic valves and severe aortic enlargement: the "2010 ACCF/AHA/AATS/ACR/ASA/SCA/SCAI/SIR/STS/SVM Guidelines for the Diagnosis ...

journal_title：Circulation

authors： 2010 ACCF\/AHA\/AATS\/ACR\/ASA\/SCA\/SCAI\/SIR\/STS\/SVM GUIDELINES FOR THE DIAGNOSIS AND MANAGEMENT OF PATIENTS WITH THORACIC AORTIC DISEASE REPRESENTATIVE MEMBERS*.,Hiratzka LF,Creager MA,Isselbacher EM,Svensson LG,2014 AHA\/ACC Guideline fo

更新日期：2016-02-16 00:00:00

abstract：BACKGROUND:The clinical efficacy of alcohol septal ablation for drug-refractory hypertrophic cardiomyopathy remains unclear. This study examines the outcome of alcohol septal ablation performed at a tertiary hypertrophic cardiomyopathy referral center. METHODS AND RESULTS:Among 601 patients with severely symptomatic o...

journal_title：Circulation

authors： Sorajja P,Valeti U,Nishimura RA,Ommen SR,Rihal CS,Gersh BJ,Hodge DO,Schaff HV,Holmes DR Jr

更新日期：2008-07-08 00:00:00

abstract：BACKGROUND:The long-term administration of ACE inhibitors to selected patients with left ventricular dysfunction appears to reduce the incidence of recurrent myocardial infarction (MI) and unstable angina pectoris. The mechanisms responsible for the reduction in ischemic events are unknown, but likely candidates includ...

journal_title：Circulation

authors： Vaughan DE,Rouleau JL,Ridker PM,Arnold JM,Menapace FJ,Pfeffer MA

更新日期：1997-07-15 00:00:00

abstract：:Echocardiographic measurements of the left ventricle were used to define rates of circumferential fiber lengthening at the endocardium and midwall in 12 normal subjects and six patients with concentric left ventricular hypertrophy (wall thickness 11 to 16 mm). There was no difference in chamber size and systolic short...

journal_title：Circulation

authors： Shimizu G,Conrad CH,Gaasch WH

更新日期：1987-01-01 00:00:00

abstract：BACKGROUND:The influence of changes in heart rate on myocardial contractility (the force-frequency effect) differs under various experimental conditions, including the anesthetized versus the conscious state. METHODS AND RESULTS:To assess the influence of beta-adrenergic stimulation on force-frequency effects on myoca...

journal_title：Circulation

authors： Kambayashi M,Miura T,Oh BH,Rockman HA,Murata K,Ross J Jr

更新日期：1992-08-01 00:00:00

abstract：:Echocardiography was used to study left ventricular size and contraction in 128 patients with isolated aortic valve disease -45 patients with aortic stenosis, 25 with mixed aortic valve disease and 58 with aortic regurgitation. Left ventricular measurements included the end-diastolic internal dimension (LVIDd), mural ...

journal_title：Circulation

authors： McDonald IG

更新日期：1976-05-01 00:00:00

abstract：BACKGROUND:Many patients with implanted cardioverter defibrillators (ICDs) receive adjunctive antiarrhythmic drug therapy, most commonly amiodarone or sotalol. The effects of these drugs on defibrillation energy requirements have not been previously assessed in a randomized controlled trial. METHODS AND RESULTS:The Op...

journal_title：Circulation

authors： Hohnloser SH,Dorian P,Roberts R,Gent M,Israel CW,Fain E,Champagne J,Connolly SJ

更新日期：2006-07-11 00:00:00

abstract：BACKGROUND:The incidence of pulmonary arterial hypertension secondary to the use of indirect serotinergic agonists such as aminorex and dexfenfluramine led to the "serotonin hypothesis" of pulmonary arterial hypertension; however, the role of serotonin in dexfenfluramine-induced pulmonary arterial hypertension remains ...

journal_title：Circulation

authors： Dempsie Y,Morecroft I,Welsh DJ,MacRitchie NA,Herold N,Loughlin L,Nilsen M,Peacock AJ,Harmar A,Bader M,MacLean MR

更新日期：2008-06-03 00:00:00

abstract：BACKGROUND:Peroxisome proliferator-activated receptor gamma (PPARgamma) activators, such as troglitazone (Tro), not only improve insulin resistance but also suppress the neointimal formation after balloon injury. However, the precise mechanisms have not been determined. Angiotensin II (Ang II) plays crucial roles in th...

journal_title：Circulation

authors： Takeda K,Ichiki T,Tokunou T,Funakoshi Y,Iino N,Hirano K,Kanaide H,Takeshita A

更新日期：2000-10-10 00:00:00