Abstract:
:To determine whether two-dimensional echocardiography can identify patients with left ventricular thrombus after myocardial infarction who are prone to embolism, clinical and echocardiographic variables in 541 patients with a first infarction between 1979 and 1983 were studied prospectively. The first echocardiogram showed definite thrombus in 115 patients (Group 1, 21%) and no thrombus in 426 (Group 2, control). In Group 1, 27 patients (23%) had clinical evidence of systemic embolism related to the thrombus before referral (Group 1a) and 88 did not (Group 1b); these two groups were similar in age, gender and infarct location, but more Group 1a patients were within 1 month of the acute infarction. In both Groups 1a and 1b, the thrombus was found in apical views over asynergic zones, with no difference (p greater than 0.05) between the two groups in the size (average area from two views being 5.3 versus 4.5 cm2), type (protruding in apical views 30% versus 27%), location (apical 83% versus 86%; septal 11% versus 11%; posterior 4% versus 2%), extent of asynergy (31% versus 33%) and ejection fraction (33% versus 34%). However, the frequency of anticoagulant therapy was less (26% versus 63%, p less than 0.005), adjacent hyperkinesia greater (100% versus 49%, p less than 0.005) and thrombus mobility greater (81% versus 19%, p less than 0.005) in Group 1a than in Group 1b. Serial echocardiograms revealed a decreased size of the thrombus by 6 months in both Groups 1a and 1b, and little or no trace in 85% by 24 months. Thus, ventricular thrombus size, location and protrusion in apical views on echocardiography did not correlate with embolism. In contrast, thrombus mobility, the presence of adjacent hyperkinesia and thrombus protrusion assessed in multiple views appeared to be strong discriminators of thrombus prone to embolism. These echocardiographic features might provide a guide for the duration of anticoagulant therapy.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Jugdutt BI,Sivaram CAdoi
10.1016/0735-1097(89)90592-5subject
Has Abstractpub_date
1989-03-01 00:00:00pages
554-64issue
3eissn
0735-1097issn
1558-3597pii
0735-1097(89)90592-5journal_volume
13pub_type
杂志文章abstract:OBJECTIVES:This analysis sought to estimate the risk ratio for cancer incidence and cancer-related mortality associated with the use of calcium channel blocking agents (CCBs) in a large group of patients with chronic coronary heart disease (CHD). BACKGROUND:Recent publications contend that the use of short-acting CCBs...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(98)00008-4
更新日期:1998-03-15 00:00:00
abstract::Data from 2,883 cardiac catheterizations performed during an 18 month period (from July 1986 through December 1987) were analyzed to assess the current complication profile of diagnostic and therapeutic procedures. Procedures performed during the study period included 1,609 diagnostic catheterizations, 933 percutaneou...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(88)80002-0
更新日期:1988-12-01 00:00:00
abstract:BACKGROUND:The optimal timing of intervention in patients with asymptomatic severe aortic stenosis (AS) remains controversial. OBJECTIVES:This multicenter study sought to test and validate the prognostic value of the staging of cardiac damage in patients with asymptomatic moderate to severe AS. METHODS:This study ret...
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.2019.04.065
更新日期:2019-07-30 00:00:00
abstract:OBJECTIVES:To evaluate whether use of beta-adrenergic blocking agents, alone or in combination with specific antiarrhythmic therapy, is associated with improved survival in persons with ventricular fibrillation (VF) or symptomatic ventricular tachycardia (VT). BACKGROUND:The ability of beta-blockers to alter the morta...
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/s0735-1097(99)00234-x
更新日期:1999-08-01 00:00:00
abstract:OBJECTIVES:This study examined the relations among the triggers of ischemia during the activities of daily life, mental stress-induced ischemia in the laboratory and functional severity of ischemia on exercise testing. BACKGROUND:Myocardial ischemia is readily induced with exercise testing, but most episodes of ischem...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(94)90169-4
更新日期:1994-12-01 00:00:00
abstract::To evaluate the feasibility of detecting denervated myocardium in the infarcted canine heart, the distribution of sympathetic nerve endings using I-123 metaiodobenzylguanidine (MIBG) was compared with the distribution of perfusion using thallium-201, with the aid of color-coded computer functional map in 16 dogs. Twel...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(10)80156-1
更新日期:1991-05-01 00:00:00
abstract::A case of paroxysmal bradycardia- and tachycardia-dependent atrioventricular (AV) block is described in a patient with right bundle branch block. The His bundle recordings demonstrated the site of the AV block to be distal to the His bundle recording site (probably in the left bundle branch). Whereas AV block distal t...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(87)80402-3
更新日期:1987-02-01 00:00:00
abstract:OBJECTIVES:This study sought to characterize the echocardiographic features of straddling mitral valve (SMV) and to determine its surgical implications and midterm outcome in a large clinical cohort. BACKGROUND:Despite a relatively large body of literature on the postmortem anatomy of SMV, there is a paucity of inform...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(01)01441-3
更新日期:2001-09-01 00:00:00
abstract:OBJECTIVES:Our aim was to measure the cardiac phosphocreatine to adenosine triphosphate ratio (PCr/ATP) noninvasively in patients and carriers of Xp21 muscular dystrophy and to correlate the results with left ventricular (LV) function as measured by echocardiography. BACKGROUND:Duchenne and Becker muscular dystrophy (...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(00)00960-8
更新日期:2000-11-15 00:00:00
abstract:OBJECTIVES:This study investigated the influences of ventricular morphology, hemodynamics and clinical findings on exercise capacity in patients after the Fontan operation. BACKGROUND:Determinants of exercise capacity after the Fontan operation remain unclear. METHODS:Peak oxygen uptake (PVo2) was determined in 105 p...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(01)01266-9
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to characterize long-term outcomes of percutaneous coronary intervention (PCI) in elderly diabetic patients in routine practice. BACKGROUND:Although drug-eluting stent (DES) implantation in diabetic patients is common practice, pivotal randomized trials enrolled <2,500 diabetic...
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.2012.08.993
更新日期:2012-12-04 00:00:00
abstract:OBJECTIVES:This study sought to characterize left atrial (LA) sinus rhythm electrogram (EGM) patterns and their relationship to parasympathetic responses during atrial fibrillation (AF) ablation. BACKGROUND:The mechanistic basis of fractionated LA EGMs in patients with paroxysmal AF is not well understood. METHODS:We...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2007.03.069
更新日期:2007-10-02 00:00:00
abstract:OBJECTIVES:The purpose of this study was to evaluate the prognostic value of community-based myocardial perfusion imaging (MPI) and to assess the incremental value of individual components of (99m)Tc-sestamibi single photon emission computed tomography (SPECT). BACKGROUND:Although the most rapid growth of MPI has been...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2003.07.041
更新日期:2004-01-21 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine if the atrial response upon cessation of ventricular pacing associated with 1:1 ventriculoatrial conduction during paroxysmal supraventricular tachycardia is a useful diagnostic maneuver in the electrophysiology laboratory. BACKGROUND:Despite various maneuvers, it c...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(98)00614-7
更新日期:1999-03-01 00:00:00
abstract::The feasibility and effectiveness of low energy synchronous transcatheter cardioversion of atrial flutter and fibrillation were examined in dogs with talc-induced pericarditis. A conventional electrode catheter was positioned transvenously in the right atrial appendage. Atrial flutter/fibrillation was induced by using...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(90)90610-2
更新日期:1990-08-01 00:00:00
abstract:BACKGROUND:Intraventricular fluid dynamics can be assessed clinically using imaging. The contribution of vortex structures to left ventricular (LV) diastolic function has never been quantified in vivo. OBJECTIVES:This study sought to understand the impact of intraventricular flow patterns on filling and to assess whet...
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.2014.06.1205
更新日期:2014-10-21 00:00:00
abstract::The American College of Cardiology Adult Congenital and Pediatric Cardiology (ACPC) Section had attempted to create quality metrics (QM) for ambulatory pediatric practice, but limited evidence made the process difficult. The ACPC sought to develop QMs for ambulatory pediatric cardiology practice. Five areas of interes...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2016.11.043
更新日期:2017-02-07 00:00:00
abstract:OBJECTIVES:We sought to assess the possible relations between clinical severity of chronic heart failure and catabolic factors, specifically tumor necrosis factor (TNF), soluble TNF receptors 1 and 2 (sTNFR-1 and sTNFR-2), cortisol, testosterone and dehydroepiandrosterone (DHEA). BACKGROUND:Chronic heart failure is as...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00262-3
更新日期:1997-10-01 00:00:00
abstract:OBJECTIVES:We sought to determine whether clopidogrel is at least as efficacious as ticlopidine. BACKGROUND:Several trials have supported the enhanced safety and tolerability of clopidogrel compared with ticlopidine after coronary stent deployment. However, none of these individual trials were powered to detect possib...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,meta分析
doi:10.1016/s0735-1097(01)01713-2
更新日期:2002-01-02 00:00:00
abstract::Members of the vascular endothelial growth factor (VEGF) family are among the most powerful modulators of vascular biology. They regulate vasculogenesis, angiogenesis, and vascular maintenance during embryogenesis and in adults. Because of their profound effects on blood vessels, VEGFs have received much attention reg...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2006.09.053
更新日期:2007-03-13 00:00:00
abstract:OBJECTIVES:This study sought to evaluate long-term in vivo functionality, host cell repopulation, and remodeling of "off-the-shelf" tissue engineered transcatheter homologous heart valves. BACKGROUND:Transcatheter valve implantation has emerged as a valid alternative to conventional surgery, in particular for elderly ...
journal_title:Journal of the American College of Cardiology
pub_type: 评论,杂志文章
doi:10.1016/j.jacc.2013.09.082
更新日期:2014-04-08 00:00:00
abstract::Hemodynamic stress testing was performed in four calves with a chronically implanted left ventricular assist device consisting of a double-valved pump interposed between the left ventricular apex and the descending thoracic aorta. The device was powered either pneumatically (n = 1) or with a transcutaneous energy tran...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(91)90521-a
更新日期:1991-12-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to identify the remodeling parameters cardiomyocyte (CM) damage or death, hypertrophy, and fibrosis that may be linked to outcomes in patients with advanced heart failure (HF) in an effort to understand the pathogenic mechanisms of HF that may support newer therapeutic modalities. ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2010.09.080
更新日期:2011-04-05 00:00:00
abstract:OBJECTIVES:This study examined the relation between left atrial spontaneous echo contrast, hematologic variables and thrombo-embolism in patients with nonvalvular atrial fibrillation. BACKGROUND:Left atrial spontaneous echo contrast is associated with left atrial stasis and thromboembolism in patients with nonvalvular...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(93)90688-w
更新日期:1993-02-01 00:00:00
abstract:OBJECTIVES:This registry collected the 30-day and 9-month clinical outcomes of patients whose coronary stent implantation was suboptimal, and compared them with the cohort of patients with "optimal" stenting in the randomized portion of the STent Anti-thrombotic Regimen Study (STARS) trial. BACKGROUND:Although "optima...
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(99)00271-5
更新日期:1999-09-01 00:00:00
abstract:OBJECTIVES:This study was designed to evaluate the efficacy of intracardiac cardioversion in patients with chronic atrial fibrillation after unsuccessful external cardioversion. BACKGROUND:Previous studies in patients with atrial fibrillation undergoing intracardiac cardioversion have suggested that intracardiac cardi...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(96)00274-4
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVES:We sought to evaluate the mechanisms that support the stability of platelet aggregates on a thrombogenic surface exposed to flowing blood. BACKGROUND:Activation of the membrane glycoprotein (GP) IIb/IIIa--mediated in part through the P2Y1 and P2Y12 adenosine 5'-diphosphate (ADP) receptors--is necessary for ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2005.08.055
更新日期:2006-01-03 00:00:00
abstract:OBJECTIVES:The main goal of this study was to determine whether induction of an angerlike state can result in significant levels of T-wave alternans, a marker of electrical instability, in the normal and ischemic heart. BACKGROUND:Outbursts of anger have been implicated in the occurrence of myocardial infarction and s...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(01)01196-2
更新日期:2001-05-01 00:00:00
abstract::The environment in which the field of cardiology finds itself has been rapidly changing. This supplement, an expansion of a report created for the Board of Trustees, is intended to provide a timely snapshot of the socio-economic, political, and scientific aspects of this environment as it applies to practice both in t...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2012.11.002
更新日期:2012-12-25 00:00:00
abstract:OBJECTIVES:Our purpose was to quantitate and confirm specific echogenic immunoliposome (ELIP) atheroma component enhancement in vivo. BACKGROUND:Targeted ELIPs for ultrasonic detection and staging of active molecular components of endothelium and atheroma have been developed. METHODS:In Yucatan miniswine, the endothe...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2003.07.048
更新日期:2004-02-04 00:00:00