Abstract:
OBJECTIVES:The aim of this study was to describe the electrocardiographic (ECG) evolutionary changes after an acute myocardial infarction (AMI) and to evaluate their correlation with left ventricular function and remodeling. BACKGROUND:The QRS complex changes after AMI have been correlated with infarct size and left ventricular function. By contrast, the significance of T wave changes is controversial. METHODS:We studied 536 patients enrolled in the GISSI-3-Echo substudy who underwent ECG and echocardiographic studies at 24 to 48 h (S1), at hospital discharge (S2), at six weeks (S3) and six months (S4) after AMI. RESULTS:The number of Qwaves (nQ) and QRS quantitative score (QRSs) did not change over time. From S2 to S4, the number of negative T waves (nT NEG) decreased (p < 0.0001), wall motion abnormalities (%WMA) improved (p < 0.001), ventricular volumes increased (p < 0.0001) while ejection fraction remained stable. According to the T wave changes after hospital discharge, patients were divided into four groups: stable positive T waves (group 1, n = 35), patients who showed a decrease > or =1 in nT NEG (group 2, n = 361), patients with no change in nT NEG (group 3, n = 64) and those with an increase > or =1 in nT NEG (group 4, n = 76). The QRSs and nQ remained stable in all groups. Groups 3 and 4 showed less recovery in %WMA, more pronounced ventricular enlargement and progressive decline in ejection fraction than groups 1 and 2 (interaction time x groups p < 0.0001). CONCLUSIONS:The analysis of serial ECG can predict postinfarct left ventricular remodeling. Normalization of negative T waves during the follow-up appears more strictly related to recovery of regional dysfunction than QRS changes. Lack of resolution and late appearance of new negative T predict unfavorable remodeling with progressive deterioration of ventricular function.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Bosimini E,Giannuzzi P,Temporelli PL,Gentile F,Lucci D,Maggioni AP,Tavazzi L,Badano L,Stoian I,Piazza R,Heyman I,Levantesi G,Cervesato E,Geraci E,Nicolosi GLdoi
10.1016/s0735-1097(99)00487-8subject
Has Abstractpub_date
2000-01-01 00:00:00pages
127-35issue
1eissn
0735-1097issn
1558-3597pii
S0735109799004878journal_volume
35pub_type
临床试验,杂志文章,随机对照试验abstract:OBJECTIVES:The purpose of this study was to determine the frequency and causes of intermittent and permanent loss of cardiac resynchronization therapy (CRT) in patients who have undergone the successful implantation of a transvenous defibrillator that delivers CRT (CRT-D). BACKGROUND:The causes of loss of CRT have not...
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.2004.03.054
更新日期:2004-07-07 00:00:00
abstract:OBJECTIVES:We sought to determine the physiologic actions and potential therapeutic applications of mutant atrial natriuretic peptide (mANP). BACKGROUND:The cardiac hormone atrial natriuretic peptide (ANP) is a 28-amino acid (AA) peptide that consists of a 17-AA ring structure together with a 6-AA N-terminus and a 5-A...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2009.04.080
更新日期:2009-09-08 00:00:00
abstract:OBJECTIVES:We sought to investigate the impact of six months of cardiac resynchronization therapy (CRT) on echocardiographic variables of left ventricular (LV) function. BACKGROUND:Cardiac resynchronization therapy has recently been introduced as a new therapeutic modality in patients with advanced heart failure (HF) ...
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(01)01637-0
更新日期:2001-12-01 00:00:00
abstract:OBJECTIVES:The study was done to define the incidence, determinants and prognostic implications of onset of atrial fibrillation (AF) during follow-up of mitral regurgitation (MR) initially in sinus rhythm. BACKGROUND:The rates and clinical implications of AF in MR are undefined. METHODS:We analyzed the occurrence of ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(02)01922-8
更新日期:2002-07-03 00:00:00
abstract::Serum levels of DHEA sulfate are inversely associated with cardiovascular death in men, and urinary dehydroepiandrosterone (DHEA) levels are inversely associated with clinical manifestations of coronary artery disease. These observations may be related to the antiproliferative effects of DHEA, resulting in inhibition ...
journal_title:Journal of the American College of Cardiology
pub_type: 更正并重新发布的文章,杂志文章
doi:10.1016/s0735-1097(10)80334-1
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVES:We investigated whether the serum markers of collagen turnover differed in various forms of atrial fibrillation (AF) and in sinus rhythm (SR) in humans. BACKGROUND:Structural alterations and fibrosis have been implicated in the generation and perpetuation of AF. METHODS:Serum C-terminal propeptide of colla...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2008.03.045
更新日期:2008-07-15 00:00:00
abstract:OBJECTIVES:The aim of this study was to investigate the frequency of viral nucleic acid detection in the myocardium of human immunodeficiency virus (HIV)-infected children to determine whether an association exists with the development of heart disease. BACKGROUND:As improved medical interventions increase the life ex...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(99)00264-8
更新日期:1999-09-01 00:00:00
abstract::In an attempt to determine whether mural thrombus in a dilated left ventricle is associated with specific flow patterns, a study was undertaken to assess qualitatively and quantitatively the flow characteristics by conventional pulsed and two-dimensional Doppler color flow examination. Forty patients with cardiomyopat...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(89)90230-1
更新日期:1989-03-15 00:00:00
abstract::Acute and chronic hemodynamic and clinical responses to milrinone, a new oral inotrope-vasodilator agent, were evaluated prospectively in 37 patients with severe congestive heart failure. The majority of patients (n = 31) had not responded to prior vasodilator therapy, with a substantial number (n = 8) requiring intra...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(85)80185-6
更新日期:1985-08-01 00:00:00
abstract::This is a report of successful dilation of stenosis of the common trunk in a case of total anomalous pulmonary vein return into the left superior vena cava in a 3 month old infant. Percutaneous angioplasty was performed with a 6 mm diameter balloon catheter. Right ventricular systolic pressure decreased from 96 to 60 ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(85)80501-5
更新日期:1985-10-01 00:00:00
abstract:OBJECTIVES:We sought to evaluate the impact of dobutamine stress echocardiography (DSE) in patients with known rheumatic mitral stenosis (MS) in order to assess its safety, feasibility, and prognostic correlation to well-known clinical outcomes. BACKGROUND:Noninvasive prognostic assessment of MS still represents an un...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2003.09.037
更新日期:2004-02-04 00:00:00
abstract:OBJECTIVES:The purpose of this study was to evaluate the effect of IR on thrombus formation and dissection repair following overstretch balloon injury in porcine coronary arteries. BACKGROUND:Exposure of blood to the injured arterial wall after percutaneous transluminal coronary angioplasty (PTCA) induces thrombus for...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(00)00851-2
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVES:We sought to test whether one month of daily oral conjugated equine estrogen (CEE) or transdermal estradiol alters hemostatic factors in postmenopausal subjects. BACKGROUND:Estrogen replacement therapy and hormonal replacement therapy (HRT) effect an early increase in cardiovascular events in postmenopausal...
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(02)02565-2
更新日期:2002-12-04 00:00:00
abstract:OBJECTIVES:The aim of the study was to examine outcomes subsequent to implantation of drug-eluting stents (DES) and bare-metal stents (BMS). BACKGROUND:Use of DES might be associated with increased risk of stent thrombosis (ST), myocardial infarction (MI), and death. METHODS:From January 2002 through June 2005, data ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2007.06.002
更新日期:2007-07-31 00:00:00
abstract:OBJECTIVES:This study was undertaken to test the hypothesis that lipoprotein(a) [Lp(a)] impairs endothelial function. BACKGROUND:Elevated Lp(a) plasma levels have been demonstrated to be associated with an increased risk of coronary heart disease. In atherosclerosis, endothelial dysfunction is known to be an early ind...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00497-x
更新日期:1998-02-01 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::The Coronary Artery Surgery Study (CASS) includes 780 patients with mild or moderate stable angina pectoris or asymptomatic survivors of a myocardial infarction who were randomized to either medical or surgical therapy and 1,319 patients who were eligible for randomization but were not randomized (randomizable patient...
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:10.1016/0735-1097(90)90534-v
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVES:This study was designed to test the hypothesis that long-term oral supplementation of dietary L-arginine (to provide a sustained elevation of nitric oxide activity) would inhibit atherogenesis in hypercholesterolemic rabbits, as assessed by histomorphometric measurements. BACKGROUND:Endothelium-derived nitr...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(94)90433-2
更新日期:1994-02-01 00:00:00
abstract::Disorders of potassium homeostasis can potentiate the already elevated risk of arrhythmia in heart failure. Heart failure patients have a high prevalence of chronic kidney disease, which further heightens the risk of hyperkalemia, especially when renin-angiotensin-aldosterone system inhibitors are used. Acute treatmen...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2016.06.060
更新日期:2016-10-04 00:00:00
abstract:OBJECTIVES:This study was performed to describe the initial experience and follow-up of ultrasound-guided compression of pseudoaneurysms in patients receiving systemic anticoagulant or antiplatelet therapy, or both, after recent cardiac catheterization or percutaneous transluminal coronary angioplasty. BACKGROUND:Femo...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90015-f
更新日期:1992-09-01 00:00:00
abstract:BACKGROUND:A combination of circulating biomarkers associated with excessive myocardial collagen type-I cross-linking or CCL+ (i.e., decreased carboxy-terminal telopeptide of collagen type-I to matrix metalloproteinase-1 ratio) and with excessive myocardial collagen type-I deposition or CD+ (i.e., increased carboxy-ter...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2018.12.074
更新日期:2019-04-02 00:00:00
abstract:OBJECTIVES:This study sought to determine the relationship between coronary calcification and plaque progression in response to established medical therapies. BACKGROUND:Coronary calcification correlates with the extent of atherosclerosis and predicts clinical outcome. METHODS:Atheroma volume was determined in serial...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2006.10.038
更新日期:2007-01-16 00:00:00
abstract::Antiarrhythmic drugs prolong the effective refractory period and depress conduction. To determine the exact role played by these two electrophysiologic effects in the termination of reentry, the effects of disopyramide, flecainide, propafenone and E-4031, a new class III drug, were examined in a canine model of atrial...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(91)90773-3
更新日期:1991-10-01 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:The purpose of this study was to evaluate the effects of mibefradil (Ro 40-5967) on the frequency and duration of episodes of asymptomatic ischemia in patients with stable angina pectoris and to determine the most efficient single therapeutic dose of this drug. BACKGROUND:Mibefradil is a novel calcium chann...
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:10.1016/0735-1097(95)00472-6
更新日期:1996-02-01 00:00:00
abstract::Advances in percutaneous coronary intervention (PCI) during the past decade have led to more widespread use of these procedures in older and sicker patients. Refinement of periprocedural antithrombotic therapy has played a particularly important role in reducing ischemic complications to very low levels in routine pra...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2008.12.073
更新日期:2009-06-02 00:00:00
abstract:BACKGROUND:P2Y12 inhibitor monotherapy with ticagrelor after a brief period of dual antiplatelet therapy can reduce bleeding without increasing ischemic harm after percutaneous coronary intervention (PCI). The impact of this approach among patients with diabetes mellitus (DM) remains unknown. OBJECTIVES:The purpose of...
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.2020.03.008
更新日期:2020-05-19 00:00:00
abstract::The incidence of left atrial spontaneous echo contrast was evaluated in 52 patients with isolated or predominant mitral valve stenosis (Group 1) and 70 other patients who had undergone mitral valve replacement (Group 2). All patients were studied by conventional transthoracic and transesophageal two-dimensional echoca...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(88)90283-5
更新日期:1988-06-01 00:00:00
abstract::Frequency analysis with fast Fourier transform and time domain analysis after signal averaging of the electrocardiogram (ECG) have given contradictory results in patients with sustained ventricular tachycardia after myocardial infarction. Therefore, the same orthogonal ECGs were analyzed in the frequency domain (Black...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(88)90368-3
更新日期:1988-07-01 00:00:00
abstract::Thirty adult patients with aortic stenosis had Doppler echocardiography within 1 day of cardiac catheterization. Noninvasive measurement of the mean transaortic pressure gradient was calculated by applying the simplified Bernoulli equation to the continuous wave Doppler transaortic velocity recording. Stroke volume wa...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(86)80382-5
更新日期:1986-11-01 00:00:00