Abstract:
:The purposes of this study were 1) to determine the prognosis of silent ischemia in an unselected group of patients referred for exercise testing, and 2) to assess whether age or the presence of myocardial infarction or diabetes mellitus influences the prevalence of silent myocardial ischemia during exercise testing. The design was retrospective, with a 2 year mean follow-up period. The study group consisted of 1,747 predominantly male in-patients and outpatients referred for exercise testing at a 1,200 bed Veterans Administration hospital. The main result was that the mortality rate was significantly greater (p = 0.02) among patients with abnormal ST segment depression than in patients without ST depression. The presence or absence of angina pectoris during exercise testing was not significantly related to death. The prevalence of silent ischemia was not significantly different among patients categorized according to myocardial infarction or diabetes mellitus status, but was directly related to age. It is concluded that, in patients with an ischemic ST response to exercise testing, the presence or absence of angina pectoris during the test does not alter the risk of death. The prevalence of silent ischemia during exercise testing is not statistically different among patients with recent, past or no myocardial infarction or with insulin-dependent or noninsulin-dependent diabetes mellitus.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Callaham PR,Froelicher VF,Klein J,Risch M,Dubach P,Friis Rdoi
10.1016/0735-1097(89)90413-0subject
Has Abstractpub_date
1989-11-01 00:00:00pages
1175-80issue
5eissn
0735-1097issn
1558-3597pii
0735-1097(89)90413-0journal_volume
14pub_type
杂志文章abstract:OBJECTIVES:The role of iron toward doxorubicin (DOX) cardiotoxicity was studied using a rodent model of dietary carbonyl iron loading. BACKGROUND:Doxorubicin, a commonly used anticancer drug, is known to cause serious and potentially life-threatening cardiotoxicity. Doxorubicin cardiotoxicity is thought to be mediated...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2007.02.060
更新日期:2007-06-26 00:00:00
abstract:BACKGROUND:Reperfusion therapy led to an important decline in mortality after ST-segment elevation myocardial infarction (STEMI). Because the rate of cardiogenic shock has not changed dramatically, the authors speculated that a reduction in the incidence or fatality rate of mechanical complications (MCs), the second ca...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2018.06.031
更新日期:2018-08-28 00:00:00
abstract:OBJECTIVES:We attempted to assess the efficacy of combined cardiac resynchronization therapy-implantable cardioverter-defibrillator (CRT-ICD) in heart failure patients with and without ventricular arrhythmias. BACKGROUND:Because CRT and ICDs both lower all-cause mortality in patients with advanced heart failure, combi...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2006.04.072
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVES:We studied the effects of chronic left ventricular unloading by a ventricular assist device and assessed left ventricular morphologic and histologic changes. BACKGROUND:The implantable left ventricular assist device has been effective as a "bridge" to cardiac transplantation. Although there are reports docu...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(95)00555-2
更新日期:1996-03-15 00:00:00
abstract:OBJECTIVES:We sought to determine the frequencies of factor V Leiden and prothrombin variant G20210A in patients age <50 years with no significant coronary stenoses three to four weeks after myocardial infarction (MI). BACKGROUND:Factor V Leiden and prothrombin variant G20210A occur frequently in patients with venous ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(00)00772-5
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to answer the question of whether stimulation after administration of catecholamines is mandatory for identifying unsuccessful ablations of atrioventricular node re-entrant tachycardia (AVNRT). BACKGROUND:The success of radiofrequency (RF) catheter ablation in AVNRT is confirme...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(01)01798-3
更新日期:2002-02-20 00:00:00
abstract:OBJECTIVES:The objective of this investigation was to define for the first time the cardiorenal and humoral actions of repeated short-term administration of subcutaneous (SQ) brain natriuretic peptide (BNP) administration during the evolution of experimental heart failure. BACKGROUND:The rationale of this study was ba...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(00)00911-6
更新日期:2000-11-01 00:00:00
abstract::Artificial intelligence (AI) is a field of computer science that aims to mimic human thought processes, learning capacity, and knowledge storage. AI techniques have been applied in cardiovascular medicine to explore novel genotypes and phenotypes in existing diseases, improve the quality of patient care, enable cost-e...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2017.03.571
更新日期:2017-05-30 00:00:00
abstract::Five children, aged 0.2 to 6.7 years, with pulmonary artery origin of the left coronary artery proved by angiography underwent echocardiographic examination from 1985 through 1986. Prospective identification of this condition was achieved by two-dimensional echocardiography alone in two patients. Using a parasagittal ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(88)90108-8
更新日期:1988-02-01 00:00:00
abstract::A total of 1,275 elderly patients (70 years and older) underwent coronary artery bypass alone from 1970 to 1981. The percent of elderly patients who underwent coronary bypass surgery alone increased from 2.04% in 1971 to 8.2% in 1981. Most of the patients had severe, disabling or unstable angina pectoris. The overall ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(84)80277-6
更新日期:1984-06-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to test the hypothesis that activated monocytes with soluble plasma tissue factor (pTF) activate factors VII and X to generate thrombin. BACKGROUND:Despite heparin, thrombin is progressively generated during cardiac surgery with cardiopulmonary bypass (CPB), produces intravascu...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2005.05.040
更新日期:2005-08-16 00:00:00
abstract::Acute coronary syndromes and other manifestations of atherothrombotic disease are primarily caused by atherosclerotic plaque rupture or fissuring and subsequent occlusive or subocclusive thrombus formation. Platelets play a critical role in the pathophysiology of atherothrombotic disease, and aspirin is the most commo...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2004.08.070
更新日期:2005-09-20 00:00:00
abstract::The effects of intravenous magnesium on exercise-induced angina were examined in 15 patients with variant angina and in 13 patients with stable effort angina and were compared with those of placebo. Symptom-limited bicycle exercise and thallium-201 myocardial scintigraphy were performed after intravenous administratio...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/0735-1097(88)92597-1
更新日期:1988-11-01 00:00:00
abstract:OBJECTIVES:We evaluated the clinical significance of reciprocal ST-segment depression associated with exercise-induced ST-segment elevation for detecting residual viability within the infarcted area. BACKGROUND:Although the relation between residual viability and exercise-induced ST-segment elevation has been describe...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(99)00028-5
更新日期:1999-03-01 00:00:00
abstract::A reasonably sensitive and specific noninvasive test for doxorubicin cardiotoxicity is needed. In addition, few data exist on the short- and long-term effects of doxorubicin on diastolic filling. To determine if pulsed Doppler indexes of diastolic filling could predict doxorubicin-induced systolic dysfunction, 26 pati...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90138-d
更新日期:1992-07-01 00:00:00
abstract:OBJECTIVES:We sought to determine if ultrafiltration before intravenous (IV) diuretics in patients with decompensated heart failure and diuretic resistance results in euvolemia and early discharge without hypotension or worsening renal function. BACKGROUND:Heart failure patients with renal insufficiency and diuretic r...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jacc.2005.05.099
更新日期:2005-12-06 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:This study sought to determine the incidence of aspirin nonresponsiveness in addition to clopidogrel nonresponsiveness and whether this association identifies patients at an increased risk of drug-eluting stent (DES) thrombosis. BACKGROUND:Nonresponsiveness to clopidogrel is a predictor of DES thrombosis. N...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.jacc.2008.05.032
更新日期:2008-08-26 00:00:00
abstract:BACKGROUND:Limited data exist regarding transcatheter mitral valve replacement (TMVR) for patients with failed mitral valve replacement and repair. OBJECTIVES:This study sought to evaluate the outcomes of TMVR in patients with failed mitral bioprosthetic valves (valve-in-valve [ViV]) and annuloplasty rings (valve-in-r...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jacc.2017.07.714
更新日期:2017-08-29 00:00:00
abstract:OBJECTIVES:The goals of this study were: 1) to assess the predictive value of baseline mitral flow pattern (MFP) and its changes after loading manipulations as regards tolerance to and effectiveness of beta-adrenergic blocking agent treatment in patients with chronic heart failure (CHF); and 2) to analyze the prognosti...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(01)01609-6
更新日期:2001-11-15 00:00:00
abstract:OBJECTIVES:The study sought to evaluate the effects of endurance exercise training (ET) on endothelial-dependent flow-mediated arterial dilation (FMD) and carotid artery stiffness, and their potential contributions to the training-related increase in peak exercise oxygen consumption (Vo2) in older patients with heart f...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jacc.2013.04.033
更新日期:2013-08-13 00:00:00
abstract:OBJECTIVES:We sought to determine the efficacy of isradipine in reducing left ventricular (LV) mass and wall thickness in hypertensive patients. BACKGROUND:LV hypertrophy on the echocardiogram is a strong predictor of cardiovascular events. Reduction of LV mass may be a desirable goal of drug therapy for hypertension....
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/s0735-1097(97)00311-2
更新日期:1997-12-01 00:00:00
abstract::It has been 40 years since the first human-to-human heart transplant performed in South Africa by Christiaan Barnard in December 1967. This achievement did not come as a surprise to the medical community but was the result of many years of early pioneering experimental work by Alexis Carrel, Frank Mann, Norman Shumway...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2008.05.020
更新日期:2008-08-19 00:00:00
abstract:BACKGROUND:It is not known whether high-risk plaque, as detected by coronary computed tomography angiography (CTA), permits improved early diagnosis of acute coronary syndromes (ACS) independently to the presence of significant coronary artery disease (CAD) in patients with acute chest pain. OBJECTIVES:The primary aim...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jacc.2014.05.039
更新日期:2014-08-19 00:00:00
abstract:OBJECTIVES:The goal of this study was to assess whether selectin blockade reduces myocardial platelet deposition and platelet-mediated injury after transient ischemia. BACKGROUND:Selectins participate in platelet adhesion to reperfused endothelium. METHODS:Thiopental-anesthetized, open-chest pigs were subjected to me...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2004.09.068
更新日期:2005-01-18 00:00:00
abstract:OBJECTIVES:This study outlines the clinical course, treatment and the late outcome of infants and children with multifocal atrial tachycardia (MAT). BACKGROUND:Multifocal atrial tachycardia is defined by three distinct P-waveforms, irregular P-P intervals, isoelectric baseline between P-waves and rapid rate on an elec...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/s0735-1097(01)01390-0
更新日期:2001-08-01 00:00:00
abstract::The efficacy of truncated exponential waveform shocks using a cardioverter-defibrillator catheter with and without a 13.9 cm2 subcutaneous thoracic patch electrode was examined in 10 pentobarbital-anesthetized dogs. The cardioverter-defibrillator catheter was positioned through the external jugular vein with the dista...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(87)80025-6
更新日期:1987-08-01 00:00:00
abstract::Syncope is a common clinical problem characterized by transient, spontaneously self-terminating loss of consciousness with complete and prompt recovery; the cause is insufficiency of cerebral oxygen/nutrient supply most often due to a transient fall of systemic arterial pressure to levels below those tolerated by cere...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2008.12.065
更新日期:2009-05-12 00:00:00
abstract::This article deals with the question of whether or not the risk factor concept, a principal aspect of preventive cardiology, has contributed to patient care in coronary heart disease. The risk factors considered are plasma cholesterol, high blood pressure, smoking, diabetes and marked obesity. With the exception of pl...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(83)80006-0
更新日期:1983-01-01 00:00:00
abstract::Four electrocardiographic scoring systems for the assessment of left ventricular function or presence of myocardial infarction were evaluated in 231 patients with coronary artery disease. Electrocardiographic scores were compared with radionuclide ejection fraction and thallium perfusion studies. The correlation betwe...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(83)80052-7
更新日期:1983-06-01 00:00:00