Abstract:
:The incidence of intracoronary thrombus and the effects of thrombolytic therapy were studied in 41 patients with unstable angina. All patients underwent coronary angiography 2 to 69 h (mean 19) after their last attack of chest pain. Immediately after angiography, 21 patients received intracoronary streptokinase (250,000 IU in 45 min) and were retrospectively analyzed. Twenty patients received intravenous recombinant tissue-type plasminogen activator (rt-PA) (100 mg in 3 h) and were involved in a prospective study. Eleven of the 21 patients from the streptokinase group and 11 of the 20 patients from the rt-PA group showed a decrease in the severity of the coronary stenosis on repeat angiography 1 day later. A decrease in coronary obstruction was primarily observed in 10 of 13 patients with a complete stenosis and in 6 of 9 patients with a subtotal stenosis and markedly diminished coronary flow. Improvement in coronary anatomy was not determined by the clinical characteristics of the patients. Twenty-eight of the 41 patients had angiographic evidence of intracoronary thrombus formation before and 16 had such evidence after thrombolytic treatment. Nine patients developed a small increase in serum cardiac enzymes before or during treatment. Ischemic symptoms and the incidence of surgical or angioplastic intervention were not different in patients with or without a reduction in coronary artery stenosis after fibrinolytic therapy. These observations suggest a high incidence of coronary thrombosis in patients with unstable angina. The data do not permit assessment of the clinical therapeutic efficacy of thrombolytic therapy. Better risk stratification and placebo-controlled prospective studies are required to obtain information on the risk/benefit ratio of such therapy in unstable angina.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
de Zwaan C,Bar FW,Janssen JH,de Swart HB,Vermeer F,Wellens HJdoi
10.1016/0735-1097(88)90398-1subject
Has Abstractpub_date
1988-08-01 00:00:00pages
301-9issue
2eissn
0735-1097issn
1558-3597pii
0735-1097(88)90398-1journal_volume
12pub_type
杂志文章abstract::Oxidative stress greatly influences the pathogenesis of various cardiovascular disorders. Coronary interventions, including balloon angioplasty and coronary stent implantation, are associated with increased vascular levels of reactive oxygen species in conjunction with altered endothelial cell and smooth muscle cell f...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2012.11.068
更新日期:2013-04-09 00:00:00
abstract::Ventricular arrhythmia (VA) in structurally normal hearts can be broadly considered under non-life-threatening monomorphic and life-threatening polymorphic rhythms. Monomorphic VA is classified on the basis of site of origin in the heart, and the most common areas are the ventricular outflow tracts and left ventricula...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2012.01.036
更新日期:2012-05-15 00:00:00
abstract::Clinical and necropsy findings are described in 56 patients with mitral valve prolapse: 15 patients, aged 16 to 69 years (mean 39), died suddenly and mitral valve prolapse was the only cardiac condition found at necropsy (hereafter called isolated mitral valve prolapse); the remaining 41 patients had other conditions ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(91)90875-a
更新日期:1991-03-15 00:00:00
abstract:OBJECTIVES:This study was designed to investigate the appropriateness and complications of the use of spironolactone for heart failure (HF) in clinical practice. BACKGROUND:Spironolactone was reported by one prospective randomized trial to decrease morbidity and mortality in patients with New York Heart Association (N...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,评论,杂志文章,随机对照试验
doi:10.1016/s0735-1097(02)02694-3
更新日期:2003-01-15 00:00:00
abstract:BACKGROUND:Heart failure patients with primary prevention implantable cardioverter-defibrillators (ICD) may experience an improvement in left ventricular ejection fraction (LVEF) over time. However, it is unclear how LVEF improvement affects subsequent risk for mortality and sudden cardiac death. OBJECTIVES:This study...
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.2015.05.057
更新日期:2015-08-04 00:00:00
abstract::The prognostic value of radionuclide measures of left ventricular function at rest and exercise is well established. Some studies have suggested that the frequency and duration of silent ischemia during ambulatory monitoring provide similar prognostic information; however, studies comparing these two techniques have n...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90279-v
更新日期:1992-04-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the efficacy and safety of mipomersen in hypercholesterolemic subjects taking stable statin therapy. BACKGROUND:Mipomersen is an apolipoprotein (apo) B synthesis inhibitor that has demonstrated significant reductions in apo B and low-density lipoprotein (LDL) cholestero...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.jacc.2009.11.069
更新日期:2010-04-13 00:00:00
abstract:OBJECTIVES:The purpose of this study was to assess myocardial blood flow (MBF) using positron emission tomography in patients with hypertrophic cardiomyopathy (HCM) according to genetic status. BACKGROUND:Coronary microvascular dysfunction is an important feature of HCM, associated with ventricular remodeling and hear...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2011.05.018
更新日期:2011-08-16 00:00:00
abstract:BACKGROUND:The wearable cardioverter-defibrillator (WCD) has emerged as a means of protecting patients with newly diagnosed nonischemic cardiomyopathy (NICM) or ischemic cardiomyopathy (ICM) against sudden cardiac death while awaiting re-evaluation of cardiac function. OBJECTIVES:This study sought to characterize the ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2015.09.079
更新日期:2015-12-15 00:00:00
abstract:OBJECTIVES:This study sought to determine whether ablation of complex fractionated atrial electrograms (CFAEs) after antral pulmonary vein isolation (APVI) further improves the clinical outcome of APVI in patients with long-lasting persistent atrial fibrillation (AF). BACKGROUND:Ablation of CFAEs has been reported to ...
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/j.jacc.2008.10.054
更新日期:2009-03-03 00:00:00
abstract::Recent trials have shown that recombinant tissue plasminogen activator (rt-PA) is an effective thrombolytic agent in patients with acute myocardial infarction. Because rt-PA converts plasminogen to plasmin, which is known to activate complement in vitro, we tested the hypothesis that rt-PA can induce in vivo activatio...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(87)80206-1
更新日期:1987-09-01 00:00:00
abstract::Electrical catheter ablation of arrhythmogenic sites is now being used for the treatment of ventricular tachycardias. However, the extent and type of the ablation lesion in relation to energy level are controversial and not well known. In 10 beagles, single cathodal shocks of 30 (4 dogs), 80 (2 dogs) or 250 J (4 dogs)...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(86)80194-2
更新日期:1986-09-01 00:00:00
abstract:OBJECTIVES:This study examined the influence of left ventricular hypertrophy on the accuracy of exercise electrocardiography and echocardiography for detection of coronary artery disease. BACKGROUND:Electrocardiographic repolarization abnormalities caused by left ventricular hypertrophy compromise the diagnostic accur...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/0735-1097(96)81472-0
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVES:The goal of this study was to describe the prevalence and ablation of coronary sinus (CS) arrhythmias after left atrial ablation for atrial fibrillation (AF). BACKGROUND:The CS has been implicated in a variety of supraventricular arrhythmias. METHODS:Thirty-eight patients underwent mapping and ablation of ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2005.03.053
更新日期:2005-07-05 00:00:00
abstract:OBJECTIVES:We hypothesized that an amlodipine-based regimen would have more favorable effects on left ventricular (LV) diastolic function. BACKGROUND:Different antihypertensive therapies may vary in their effect on LV diastolic function. METHODS:The HACVD (Hypertension Associated Cardiovascular Disease) substudy of A...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2009.11.084
更新日期:2010-04-27 00:00:00
abstract::Progressive dyspnea and syncope occurred in a young woman with primary pulmonary hypertension despite therapy with hydralazine. Abnormal pulmonary artery reactivity was documented by an additional increase in pulmonary artery pressure and pulmonary vascular resistance during exercise and after an episode of hydralazin...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(83)80389-1
更新日期:1983-07-01 00:00:00
abstract::In the recent era, no congenital heart defect has undergone a more dramatic change in diagnostic approach, management, and outcomes than hypoplastic left heart syndrome (HLHS). During this time, survival to the age of 5 years (including Fontan) has ranged from 50% to 69%, but current expectations are that 70% of newbo...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2011.09.022
更新日期:2012-01-03 00:00:00
abstract:OBJECTIVES:The goal of this study was to examine the progression of central arterial pulse pressure (cPP) in women and the degree to which this can be reversed by nitrovasodilation. BACKGROUND:cPP can be partitioned into height of the first systolic shoulder (P1), generated by a forward pressure wave and related to ar...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2011.10.871
更新日期:2012-01-31 00:00:00
abstract:OBJECTIVES:We sought to determine whether the introduction of these agents had altered the outcome of dilated cardiomyopathy (DC) in childhood. BACKGROUND:Pediatric DC has a poor prognosis. Angiotensin-converting enzyme inhibitors (ACEIs) and beta-adrenergic receptor blockers (BBs) improve survival in adults with DC, ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2009.11.059
更新日期:2010-03-30 00:00:00
abstract::This study was performed 1) to determine the ability of dobutamine stress echocardiography to detect stenoses in individual coronary arteries by utilizing a new model of coronary artery distribution; 2) to evaluate its ability to detect coronary artery stenosis with a minimal lumen diameter less than 1 mm; and 3) to c...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90324-g
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVES:We sought to investigate whether alterations in cardiac high energy phosphates occur in postischemic "stunned" human myocardium. BACKGROUND:Transient postischemic myocardial dysfunction is a common phenomenon that occurs in a variety of clinical settings in the absence of necrosis, and its pathogenesis is s...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00306-9
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVES:We explored whether vascular protection by carvedilol could contribute to its superior effects in the treatment of heart failure (HF) compared with metoprolol tartrate in the COMET (Carvedilol Or Metoprolol European Trial) study. BACKGROUND:Full adrenergic blockade by carvedilol and additional (e.g., antiox...
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.2006.10.059
更新日期:2007-03-06 00:00:00
abstract::To identify predictors of the success or failure of medical therapy in chronic recurrent sustained ventricular tachycardia, univariate and multivariate statistical techniques were used to retrospectively analyze data in 84 patients with this arrhythmia. By univariate analysis, four factors were associated with success...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(83)80066-7
更新日期:1983-02-01 00:00:00
abstract::Twenty patients with a chronic total coronary artery occlusion were studied before and 1 to 48 months (mean 9) after successful recanalization by angioplasty and compared with a group of 20 normal subjects. Before angioplasty, 19 of these 20 patients had angina. Collateral vessels to the distal part of the occluded ve...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(87)80230-9
更新日期:1987-04-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to determine the time course of the appearance of abnormal Q waves on the electrocardiogram (ECG) over the first 6 h of symptoms of myocardial infarction and to determine what implications, if any, such Q waves have for the efficacy of thrombolytic therapy. BACKGROUND:Severe my...
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)00514-q
更新日期:1995-04-01 00:00:00
abstract:OBJECTIVES:We sought to examine the use, complications and outcomes with early intraaortic balloon counterpulsation (IABP) in patients presenting with cardiogenic shock complicating acute myocardial infarction and treated with thrombolytic therapy. BACKGROUND:The use of IABP in patients with cardiogenic shock is widel...
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)00227-1
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVES:To determine how well recently developed multivariables scores assess for all-cause mortality in patients with suspected coronary disease presenting for exercise electrocardiography (ExECG). BACKGROUND:Recently revised American College of Cardiology/American Heart Association guidelines for ExECG have sugge...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(03)00837-4
更新日期:2003-09-03 00:00:00
abstract:OBJECTIVES:The aim of this study was to analyze the relation between anomalies of the heart and aortic arch arteries in near-term rat fetuses exposed to the chemical bis-diamine. BACKGROUND:Bis-diamine is known to induce cardiovascular anomalies. METHODS:Bis-diamine was given orally to normal pregnant rats, and the 6...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(93)90111-d
更新日期:1993-03-01 00:00:00
abstract::To determine the effect of increasing heart rate on mitral flow velocity variables, the time constant of left ventricular isovolumic relaxation and the transmitral pressure gradient, 16 lightly sedated, conscious dogs were studied with Doppler echocardiography during incremental right atrial pacing (n = 16) or the adm...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(91)90731-n
更新日期:1991-01-01 00:00:00
abstract::With the emergence of new lipid risk markers and a growing cardiometabolic risk burden in the United States, there is a need to better integrate residual risk into cardiovascular disease (CVD) risk stratification. In anticipation of the Adult Treatment Panel IV (ATP IV) guidelines from the National Cholesterol Educati...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2011.05.009
更新日期:2011-07-26 00:00:00