Abstract:
:Electrophysiologic studies were performed at 12.7 +/- 4 months postoperatively in 20 patients who had the arterial switch repair at 1 to 120 days (mean 13 +/- 26 [SD]) for d-transposition of the great arteries. Preoperative electrocardiograms (ECGs) at rest revealed an ectopic atrial rhythm in one patient. Postoperative rest ECGs revealed transient postoperative ectopic atrial or junctional rhythms in two patients, intermittent ectopic atrial rhythms in two and right bundle branch block in nine with a normal QRS axis. In addition, ambulatory monitor recordings revealed infrequent premature ventricular complexes in five patients. Catheter endocardial mapping revealed sinus rhythm in 18 patients and ectopic atrial rhythm in 1 patient. Atrial activation after the switch repair was comparable with normal atrial activation. Activation of all low atrial sites was significantly earlier after the switch repair than after the Mustard repair. Mild abnormalities of sinus node function were present and consisted of slight prolongation of corrected sinus node recovery time in six patients and slightly increased sinoatrial conduction time in four. The ratio of sinus node recovery time to sinus cycle length was normal in all 20 patients. Atrial effective and functional refractory periods were normal in all patients and no atrial arrhythmias could be induced by programmed stimulation. Atrioventricular (AV) node conduction was excellent with normal AV node effective and functional refractory periods. The only electrophysiologic abnormality of His-Purkinje function was distal right bundle branch block in nine patients. Programmed stimulation of the ventricle produced repetitive ventricular responses in four patients: bundle branch reentry in three and intraventricular reentry in one.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Vetter VL,Tanner CSdoi
10.1016/0735-1097(88)90379-8subject
Has Abstractpub_date
1988-07-01 00:00:00pages
229-37issue
1eissn
0735-1097issn
1558-3597pii
0735-1097(88)90379-8journal_volume
12pub_type
杂志文章abstract:OBJECTIVES:The purpose of this study was to define the incidence and characterization of cardiovascular cause of sudden death in the young. BACKGROUND:The epidemiology of sudden cardiac death (SCD) in young adults is based on small studies and uncontrolled observations. Identifying causes of sudden death in this popul...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2011.01.049
更新日期:2011-09-13 00:00:00
abstract::In 14 patients with severe congestive heart failure, left ventricular pressure (measured by tip manometer) and derived variables were measured before and every 10 minutes after administration of oral milrinone (10 mg) for 50 minutes along with measurements of coronary sinus blood flow and drug plasma levels. Arterial ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(87)80134-1
更新日期:1987-12-01 00:00:00
abstract:OBJECTIVES:We sought to compare emergency coronary angiography with or without rescue percutaneous coronary intervention (PCI) with conservative treatment in patients with failed fibrinolysis complicating ST-segment elevation myocardial infarction (STEMI). BACKGROUND:Most patients with STEMI receive fibrinolytic thera...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/j.jacc.2003.12.059
更新日期:2004-07-21 00:00:00
abstract:OBJECTIVES:Our primary objective was to compare the effects of three different doses of candoxatrilat with the effects of placebo on urinary volume in patients with moderately severe heart failure. The effects of candoxatrilat on urinary composition, neuroendocrine indexes and renal hemodynamic function were also studi...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0735-1097(94)00561-4
更新日期:1995-05-01 00:00:00
abstract:OBJECTIVES:The purpose of this research was to find out whether, in humans, dobutamine-induced hemodynamic effects and increase in plasma-renin activity (PRA) might be beta1-adrenoceptor (beta1AR) genotype-dependent. BACKGROUND:In vitro Arg389Gly-beta1AR polymorphism exhibits decreased receptor signaling. METHODS:We ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2005.08.041
更新日期:2005-12-06 00:00:00
abstract::During careful studies of the human cardiac conduction system the anatomy of the crista supraventricularis is an inescapable concomitant demonstration. For the purpose of this report the observations from about 1,000 human hearts were combined with special additional studies of 75 human hearts (50 adults, 25 infants),...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(85)80313-2
更新日期:1985-11-01 00:00:00
abstract::Beta-adrenergic blocking agents differ considerably in their effects on myocardial excitable properties. The possibility that intrinsic sympathomimetic activity might contribute to such differences has not been adequately explored. This study examined the influence of intrinsic sympathomimetic activity on the electrop...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(83)80047-3
更新日期:1983-06-01 00:00:00
abstract:OBJECTIVES:This study was done to assess the impact of anterior mitral leaflet reconstructive procedures on initial and long-term results of mitral valve repair. BACKGROUND:It has been suggested that involvement of the anterior leaflet in mitral valve disease adversely affects the long-term outcome of mitral valve rep...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(94)00325-k
更新日期:1995-01-01 00:00:00
abstract::There is increased interest in and use of cardiac computed tomographic and magnetic resonance imaging as the technology continues to improve. We have many small single-center trials on the diagnostic accuracy of these techniques, but no studies that show a patient benefit from testing. The American College of Cardiolo...
journal_title:Journal of the American College of Cardiology
pub_type: 评论,杂志文章
doi:10.1016/j.jacc.2006.09.056
更新日期:2007-05-08 00:00:00
abstract:OBJECTIVES:The purpose of the study was to determine the independent and additive prognostic value of brain natriuretic peptide (BNP) in patients with severe asymptomatic mitral regurgitation and normal left ventricular function. BACKGROUND:Early surgery could be advisable in selected patients with chronic severe mitr...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2009.06.013
更新日期:2009-09-15 00:00:00
abstract:OBJECTIVES:This study evaluated how variations in atrioventricular (AV) delay affect hemodynamic function in patients with refractory heart failure being supported with intravenous inotropic and intravenous or oral inodilating agents. BACKGROUND:Although preliminary data have suggested that dual-chamber pacing with sh...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00307-0
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVES:This study was designed to determine adherence to outpatient beta-blocker therapy following acute myocardial infarction (AMI). BACKGROUND:The importance of beta-blocker therapy after AMI is widely recognized. Outpatient adherence with this recommendation, however, is not well described. METHODS:Data on 846...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(02)02379-3
更新日期:2002-11-06 00:00:00
abstract:OBJECTIVES:We aimed to perform a meta-analysis of clinical trials on intracoronary cell therapy after acute myocardial infarction (AMI). BACKGROUND:Intracoronary cell therapy continues to be evaluated in the setting of AMI with variable impact on left ventricular ejection fraction (LVEF). METHODS:We searched the CENT...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.jacc.2007.07.041
更新日期:2007-10-30 00:00:00
abstract:OBJECTIVES:We sought to evaluate the impact of intravenous antagonists of the platelet IIb/IIIa receptor on the survival of patients undergoing percutaneous coronary interventions (PCIs). BACKGROUND:Several trials have shown that intravenous antagonists of the platelet glycoprotein (GP) IIb/IIIa receptor reduce the in...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,meta分析
doi:10.1016/s0735-1097(02)02666-9
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate measurement accuracy of cardiac output in humans by comparing the indicator-dilution technique with geometric analysis by ultrafast computed tomography. BACKGROUND:Ultrafast computed tomography can be used to measure cardiac output by two methods. First, by scanning to ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(93)90328-x
更新日期:1993-05-01 00:00:00
abstract::To compare the effects of isolated right ventricular pressure and volume overload on left ventricular diastolic geometry and filling, 11 patients with primary pulmonary hypertension, 11 patients with severe tricuspid regurgitation due to tricuspid valve resection and 11 normal subjects were studied with use of Doppler...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90056-s
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVES:The present study sought to determine whether myocardial contractile abnormalities accompany the development of chest pain in patients with normal coronary angiograms. BACKGROUND:The mechanism of chest pain in patients with angina despite a normal coronary arteriogram is controversial. Although previous stu...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(96)00481-0
更新日期:1997-02-01 00:00:00
abstract::The efficacy and safety of oral nadolol in supraventricular tachycardia were evaluated prospectively in 27 children (median age 5.5 years). Fifteen patients had an unsuccessful trial of digoxin therapy. Intravenous nadolol was given to seven patients during electrophysiologic study; five of these had an excellent resp...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/s0735-1097(10)80283-9
更新日期:1992-03-01 00:00:00
abstract::Defining left atrial (LA) function has recently emerged as a powerful parameter, particularly in evaluation of left ventricular (LV) diastolic dysfunction (LVDD) and heart failure with preserved ejection fraction. Echocardiographic assessment of LVDD by echocardiography remains a challenging task; recent recommendatio...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2019.01.059
更新日期:2019-04-23 00:00:00
abstract:BACKGROUND:Previously, observational studies have identified associations between higher levels of dietary-derived antioxidants and lower risk of coronary heart disease (CHD), whereas randomized clinical trials showed no reduction in CHD risk following antioxidant supplementation. OBJECTIVES:The purpose of this study ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2020.10.048
更新日期:2021-01-05 00:00:00
abstract::Little is known about the benefits and risks of the long-term use of cardiovascular drugs. Evidence from randomized clinical trials (RCTs) rarely goes beyond a few years of follow-up, but patients are often given continuous treatment with multiple drugs well into old age. We focus on 4 commonly used cardiovascular dru...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2015.07.018
更新日期:2015-09-15 00:00:00
abstract::The onset and resolution of electrical and functional measures of regional myocardial ischemia were examined in nine conscious dogs during control exercise and exercise after beta-receptor blockade. The dogs had been instrumented with an ameroid constrictor and were studied when no regional dysfunction was evident at ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(87)80353-4
更新日期:1987-11-01 00:00:00
abstract:OBJECTIVES:The impact of infection-associated antiphospholipid antibodies (APA) on endothelial cell activation, blood coagulation and fibrinolysis was evaluated in patients with infective endocarditis with and without major embolic events. BACKGROUND:An embolic event is a common and severe complication of infective en...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(99)00024-8
更新日期:1999-04-01 00:00:00
abstract::The Million Hearts Initiative has a goal of preventing 1 million heart attacks and strokes-the leading causes of mortality-through several public health and healthcare strategies by 2017. The American Heart Association and American College of Cardiology support the program. The Cardiovascular Risk Reduction Model was ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2016.10.018
更新日期:2017-03-28 00:00:00
abstract::A 10 year prospective community practice study in Seattle of risk of primary morbidity (defined by hospital admission) and mortality due to coronary heart disease in 3,611 men and 547 women initially free of clinical manifestations of this disease revealed a crude incidence of 202 coronary heart disease events, or 4.9...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(83)80286-1
更新日期:1983-09-01 00:00:00
abstract::Isochronal maps of ventricular activation were analyzed in dogs 1 to 5 days after infarction utilizing a 64 channel multiplexer. Only dogs in which circus movement reentry could not be induced by a single premature stimulus were analyzed. Reentrant rhythms could be successfully induced equally by multiple (double or t...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(84)80217-x
更新日期:1984-08-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to determine the frequency of pulmonary complications, feasibility of early hospital discharge and requirements for postoperative inotropic and chronotropic support in patients receiving amiodarone therapy before heart transplantation. BACKGROUND:Although many patients waitin...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/0735-1097(92)90450-2
更新日期:1992-12-01 00:00:00
abstract:OBJECTIVES:This report describes the sensing/pacing lead complications that developed during a worldwide clinical trial of a new implantable cardioverter-defibrillator. BACKGROUND:The reliability of the leads used for sensing and pacing with the implantable cardioverter-defibrillator has not been adequately studied. ...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/0735-1097(94)90510-x
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVES:Our objective was to evaluate the efficacy of triphasic waveforms for transthoracic defibrillation in a swine model. BACKGROUND:Triphasic shocks have been found to cause less post-shock dysfunction than biphasic shocks in chick embryo studies. METHODS:After 30 s of electrically induced ventricular fibrilla...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(03)00656-9
更新日期:2003-08-06 00:00:00
abstract:OBJECTIVES:We sought to evaluate the mechanisms by which nonsurgical septal reduction therapy (NSRT) reduces left ventricular outflow tract (LVOT) obstruction in patients with hypertrophic obstructive cardiomyopathy (HOCM) both acutely and on a long-term basis. BACKGROUND:NSRT reduces LVOT obstruction in patients with...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(00)01045-7
更新日期:2001-01-01 00:00:00