Abstract:
:Some studies provide a link between the width of QRS complexes and late potentials occurring at the end of the QRS complex in signal-averaged recordings. The purpose of this study was to compare three methods of QRS duration measurement: the conventional 12 lead ECG, the Frank vectorcardiogram (VCG) and the signal-averaged electrocardiogram. The recordings were made at a similar time in 121 consecutive patients with the Cardionics PC-based system (ECG and VCG) and the Cardionics high resolution ECG, based on methods described by Simson. Patients with bundle branch block were excluded. All patients had presented a myocardial infarction and were studied either for spontaneous ventricular arrhythmias or systematically 3 to 6 weeks after an acute myocardial infarction. The signal-averaged ECG and VCG QRS durations were similar in 41 patients without inducible ventricular arrhythmias and with normal signal-averaged ECG but were longer (P < 0.001) than the conventional ECG QRS duration. In 36 patients with spontaneous and inducible ventricular tachyarrhythmias, the QRS duration was significantly longer on signal-averaged ECG than on VCG (P < 0.05) and longer on VCG than on conventional ECG (P < 0.05). The QRS duration was also significantly (P < 0.001) longer with the three techniques in patients with spontaneous ventricular tachycardia (VT) than in patients without spontaneous and inducible VT. A QRS duration on VCG > or = 110 ms and on conventional ECG > or = 100 ms had a sensitivity of 93% and 77% and a specificity of 83% and 85% respectively for predicting an abnormal signal-averaged ECG. In conclusion, the measurement of QRS duration with the conventional ECG, VCG or the signal-averaged ECG could be a simple method to detect the patients with myocardial infarction prone to VT.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Brembilla-Perrot Bdoi
10.1093/oxfordjournals.eurheartj.a060375subject
Has Abstractpub_date
1994-01-01 00:00:00pages
26-31issue
1eissn
0195-668Xissn
1522-9645journal_volume
15pub_type
杂志文章abstract:AIM:To determine the frequency of pre-existing valvular disease (VD) among patients with acute coronary syndromes (ACS) and to compare the clinical characteristics, clinical course, treatment, and outcomes of ACS patients with and without pre-existing VD. METHODS AND RESULTS:The Euro Heart Survey ACS prospectively enr...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/s0195-668x(02)00742-x
更新日期:2003-04-01 00:00:00
abstract::Five, ten and fifteen min after sublingual administration of 10mg isosorbide dinitrate (ISDN) in chewing capsules, in 10 patients with coronary artery disease, ISDN plasma levels were correlated with the dilation of epicardial coronary arteries as well as with changes in aortic blood pressure and heart rate. Due to th...
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1989-11-01 00:00:00
abstract:AIMS:Anecdotal observations suggest that sub-clinical electrophysiological manifestations of arrhythmogenic right ventricular cardiomyopathy (ARVC) develop before detectable structural changes ensue on cardiac imaging. To test this hypothesis, we investigated a murine model with conditional cardiac genetic deletion of ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehr472
更新日期:2012-08-01 00:00:00
abstract::Stephan Achenbach reviews the history of coronary computer tomography angiography and discusses its further evolution. ...
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:2016-02-21 00:00:00
abstract::We now have conclusive data that ACE inhibitors reduce mortality, morbidity, and symptoms in patients with low ejection fraction and/or heart failure. Therefore, ACE inhibitors should be routinely used in all such patients, as long as there are no clear contraindications. Routine use of ACE inhibitors will lead to pro...
journal_title:European heart journal
pub_type: 杂志文章,meta分析
doi:10.1093/eurheartj/15.suppl_b.9
更新日期:1994-05-01 00:00:00
abstract:AIMS:There is little evidence to inform routine practice in the use of coronary angiography and revascularization procedures after acute myocardial infarction. Large differences in the uptake of these procedures have been reported but representative data are scarce. Outcome studies have produced opposing conclusions co...
journal_title:European heart journal
pub_type: 杂志文章,meta分析
doi:10.1053/euhj.1998.1027
更新日期:1998-09-01 00:00:00
abstract:AIMS:This study investigates whether increased right ventricular (RV) pressure in pulmonary hypertension (PH) impairs right coronary artery (RCA) flow and RV perfusion. METHODS:In 25 subjects, five patients with idiopathic pulmonary arterial hypertension, nine patients with chronic thromboembolic pulmonary arterial hy...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehm567
更新日期:2008-01-01 00:00:00
abstract::The fundamental abnormality in syndrome X (angina pectoris, ischaemia-like stress ECG despite angiographically normal coronary arteries) might be patchily distributed increased tone in pre-arteriolar coronary vessels with compensatory release of adenosine. The aim of this study was to confirm this hypothesis and to ex...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060780
更新日期:1995-11-01 00:00:00
abstract:AIMS:The Pacing to Avoid Cardiac Enlargement (PACE) trial is a prospective, double-blinded, randomized, multicentre study that reported the superiority of biventricular (BiV) pacing to right ventricular apical (RVA) pacing in the prevention of left ventricular (LV) adverse remodelling and deterioration of systolic func...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurheartj/ehr336
更新日期:2011-10-01 00:00:00
abstract::The slope and pressure half-time of the aortic regurgitant velocity spectrum have been used as non-invasive markers of regurgitant severity. Recent in vitro and theoretical work, however, has suggested a confounding effect of systemic vascular resistance and left ventricular compliance on these parameters. To study th...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060567
更新日期:1994-05-01 00:00:00
abstract::To examine whether increases in heart rate might be a common trigger of angina at rest, changes in heart rate, blood pressure and rate-pressure product during pain were compared with the ischaemic threshold (heart rate with ST segment shift > = 1 mm), determined by atrial pacing, in 272 patients with unstable angina. ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.9.1170
更新日期:1993-09-01 00:00:00
abstract:AIMS:The aim of this study was to assess the risk of intra-aortic balloon counterpulsation and to identify clinical and procedural variables that would predict complications. METHODS AND RESULTS:We analysed 381 consecutive patients who were treated between 1977 and 1995 at our catheterization laboratory and/or medical...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1997.0802
更新日期:1998-03-01 00:00:00
abstract::Forty-nine patients admitted for assessment of chest pain underwent coronary angiography, planar Thallium 201 myocardial scintigraphy after submaximal exercise (TE) and transoesophageal atrial pacing (TAP). Early hypofixation with redistribution after 4 h indicated ischaemia. The criterion for a myocardial infarction ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060259
更新日期:1992-06-01 00:00:00
abstract::An elevation of the cardiopulmonary baroreflex control of the forearm vascular resistances due to an impairment of the arterial baroreflex has been postulated in borderline hypertension. The purpose of the study is to verify this hypothesis. The arterial baroreflex sensitivity, measured by the phenylephrine method is ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/4.suppl_g.41
更新日期:1983-11-01 00:00:00
abstract::A 35-year-old man developed giant cell myocarditis resulting in severe congestive cardiac failure. He needed urgent orthotopic cardiac transplantation despite maximal doses of inotropes and augmentation with an intra-aortic balloon pump. The patient presented with rhythm disturbances and echocardiographically diminish...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a059938
更新日期:1991-04-01 00:00:00
abstract::The prevalence of left ventricular (LV) thrombosis and incidence of arterial embolism after acute anterior myocardial infarction (AAMI) treated with streptokinase 1.5 x 10(6) IU intravenously was studied in 136 patients enrolled consecutively in five cardiological centres. Adjunctive antithrombotic therapy was adminis...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1093/eurheartj/14.11.1489
更新日期:1993-11-01 00:00:00
abstract::Modern-day stenting procedures leverage advances in pharmacotherapy and device innovation. Patients treated with contemporary antiplatelet agents, peri-procedural antithrombin therapy and new-generation drug-eluting stents (DES) have excellent outcomes over the short to medium term. Indeed, coupled with the reducing c...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehv511
更新日期:2015-12-14 00:00:00
abstract:BACKGROUND:The syndrome with an electrocardiographic pattern of right bundle branch block, ST segment elevation in leads V(1)to V(3)and sudden death is genetically determined and caused by mutations in the cardiac sodium channel. The inheritance of the disease is autosomal dominant. Sudden death may, however, occur fro...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1999.1751
更新日期:2000-02-01 00:00:00
abstract::Antiarrhythmic agents may depress cardiac contractility and worsen heart failure. Flecainide is an effective antiarrhythmic drug, but when administered orally in patients with left ventricular (LV) dysfunction, its effect on LV function is unknown. To assess the effects of flecainide on cardiac function, LV ejection f...
journal_title:European heart journal
pub_type: 临床试验,杂志文章
doi:10.1093/eurheartj/8.7.754
更新日期:1987-07-01 00:00:00
abstract:AIMS:To present the design of ACTION (A Coronary disease Trial Investigating Outcome with Nifedipine GITS), an ongoing multicentre clinical outcome trial with nifedipine GITS (Gastro-Intestinal Therapeutic System) in patients with stable angina pectoris. METHODS:At least 6000 patients with optimally treated stable ang...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:Electrocardiographic abnormalities and premature ventricular contractions are common in athletes and are generally benign. However, the specific outcome of high-level endurance athletes with frequent and complex ventricular arrhythmias is unclear. Also, information on the predictive accuracy of different inv...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/s0195-668x(03)00282-3
更新日期:2003-08-01 00:00:00
abstract:AIMS:Recent data from national registries suggest that acute heart failure (AHF) outcomes might vary in men and women, however, it is not known whether this observation is universal. The aim of this study was to evaluate the association of biological sex and 1-year all-cause mortality in patients with AHF in various re...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehaa071
更新日期:2020-04-01 00:00:00
abstract::Treatment of 8 hypertensive elderly subjects with atenolol or with labetalol did not affect exercise performance, except after the development of circulatory congestion in 1 patient. Treatment with beta blockers did not alter the response to an exercise training programme in 15 elderly patients with ischaemic heart di...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/5.suppl_e.117
更新日期:1984-11-01 00:00:00
abstract::The aim of this study was to determine whether sudden cardiac death from pulmonary embolism exhibits any chronobiological rhythm. Five hundred and seven consecutive subjects dying suddenly outside of hospital and brought into our Emergency Department from January 1983 to December 1989 were studied. The time and date o...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.eurheartj.a060232
更新日期:1992-05-01 00:00:00
abstract::There is mounting evidence to support the influence of inflammation in the pathogenesis of atrial fibrillation (AF). Indeed, AF is associated with increased levels of known inflammatory markers, even after adjustment for confounding factors. The renin-angiotensin-aldosterone system (RAAS) appears to play a key role in...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehi645
更新日期:2006-01-01 00:00:00
abstract::All citizens (N = 22066) aged 16 to 65 of a medium-sized Belgian town were personally invited to CPR training sessions held in their neighbourhood. 1152 responded by attending a training session. Those who did not so respond were surveyed (random sample N = 600) for reasons of their not coming. The sample fitted well ...
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1987-03-01 00:00:00
abstract::The direct cardioprotective properties of nitroglycerin and nicorandil were compared in regionally ischaemic (45 min), reperfused (24 h) porcine hearts. Intracoronary treatments, which were started 15 min prior to occlusion of the distal left anterior descending coronary artery (LAD), were continuously administered fo...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060962
更新日期:1995-05-01 00:00:00
abstract:AIMS:This ancillary analysis of the GISSI-HF database aims at assessing the effect of rosuvastatin on the occurrence of atrial fibrillation (AF) in patients with chronic heart failure (HF) who were not in AF at study entry. METHODS AND RESULTS:GISSI-HF was a double-blind, placebo-controlled trial testing n-3 PUFA and ...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurheartj/ehp357
更新日期:2009-10-01 00:00:00
abstract::To analyse quantitatively a coronary arterial segment from a cineangiogram, an end-diastolic or neighbouring frame is usually selected. However, different cardiologists may select other (although usually neighbouring) frames, even when the same selection criteria are followed. It is also possible that the frames are s...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/10.suppl_f.54
更新日期:1989-11-01 00:00:00
abstract:UNLABELLED:OBJECTIVE, DESIGN AND PATIENTS: Between August 1981 and July 1983, 5839 consecutive myocardial infarction patients were hospitalized in 13 coronary care units in Israel. The present study examines 10 year survival among 4037 consecutive patients with a first myocardial infarction with either Q or non-Q waves...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a014717
更新日期:1996-10-01 00:00:00