Abstract:
:Atrioventricular node reentry tachycardia is an incompletely understood substrate for supraventricular tachycardia. Although there is agreement that the mechanism involves functionally separate fast and slow AV node pathways, which are somewhat anatomically discrete, the anatomical basis for the reentrant circuit is not well defined. Furthermore, the nature of the long fast pathway effective refractory period is not known but most likely involves electrotonic interactions between fast and slow AV nodal pathways. The proposition that the mechanism is related to features of cell coupling has been studied in a finite element computer model. Because the calculations rely on assumptions about nodal size and space constants, clinical studies in smaller and younger patients are naturally of interest.
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
Van Hare GFdoi
10.1016/j.jelectrocard.2008.06.016subject
Has Abstractpub_date
2008-11-01 00:00:00pages
480-2issue
6eissn
0022-0736issn
1532-8430pii
S0022-0736(08)00285-9journal_volume
41pub_type
杂志文章,评审abstract:BACKGROUND:In STEMI, grade-3 ischemia (G3) on admission ECG predicts larger infarct size (IS) than grade-2 (G2). We evaluated whether pre-hospital G3 and its temporal behavior are associated with IS and salvage after pPCI. METHODS:In 401 STEMI patients, pre-hospital and pre-PCI ECGs were classified as G3 or G2. IS was...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jelectrocard.2014.04.012
更新日期:2014-07-01 00:00:00
abstract::In a 66-year-old male with subacute extensive anterior wall myocardial infarction, we report a change in ST vector orientation from a basal anterior to a mid anterior after coronary artery recanalization of the proximal left anterior descending coronary artery with rotational atherectomy. The ST vector shift on the fr...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2009.05.001
更新日期:2009-09-01 00:00:00
abstract::We report a case of 54-year-old man who presented to hospital with severe prolonged retrosternal chest pain of anginal nature. Electrocardiogram taken by his general practitioner showed minimal ST elevation in chest leads V1 and V2; there was also marked right axis deviation of P wave (negative in lead I and aVL) and ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2005.06.036
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:No direct comparison of current electrocardiogram (ECG) interpretation programs exists. OBJECTIVE:Assess the accuracy of ECG interpretation programs in detecting abnormal rhythms and flagging for priority review records with alterations secondary to acute coronary syndrome (ACS). METHODS:More than 2,000 di...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2019.11.043
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Hibernating myocardium develops inhomogeneity in myocardial sympathetic innervation with spontaneous sudden cardiac death (SCD) because of ventricular fibrillation (VF). The triggers and prodromal arrhythmias initiating SCD in this substrate are unknown. METHODS:Swine chronically instrumented with a proxima...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2006.05.026
更新日期:2006-10-01 00:00:00
abstract::Two cases of transient hemiblock occurring during the course of acute myocardial infarction are reported. The transient manifestation permits the accurate evaluation of the diagnostic features of the hemiblocks as modified by acute infarction. One case reflects the development of left bundle branch block due to bilate...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(78)80109-5
更新日期:1978-04-01 00:00:00
abstract::A rigorous mathematical analysis of Electrocardiogram (ECG) data is presented in this paper, as a decision support system for ECG interpretation. The mathematical analysis: provides a new insight to the ECG data, provides flexibility for future understanding of the heart system or the ECG, and avoids the need of measu...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:
更新日期:1987-10-01 00:00:00
abstract:UNLABELLED:By definition, the electrocardiographic (ECG) patterns of left bundle-branch block (LBBB) represent distinctive changes in duration and shape of the QRS complex caused by intraventricular conduction delay in the left ventricle (LV) due to structural abnormalities in the His-Purkinje conduction system and/or ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2011.03.007
更新日期:2011-11-01 00:00:00
abstract::A 52-year-old woman exhibited Mobitz type II atrioventricular block with right bundle branch block and 1:1 atrioventricular conduction at or slower than 80 beats/min. Electrophysiologic study revealed transient HV interval block followed by recovery from the block at shorter coupling intervals without prolongation of ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(98)90009-7
更新日期:1998-01-01 00:00:00
abstract:AIM:The aim of this study was to investigate whether interventricular asynchrony (IVA) can be measured by electrocardiography. METHODS:Sixty-two patients (New York Heart Association heart failure functional class III: age, mean +/- SD: 64 +/- 9 years; ejection fraction, mean +/- SD: 24% +/- 8%; dilative cardiomyopathy...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2009.12.006
更新日期:2010-05-01 00:00:00
abstract::This study assesses the occurrence of and identifies clinical characteristics associated with the development of aberrant conduction during infusion of the I(kr)-blocker almokalant. Class III drugs may induce aberrant conduction by prolongation of cardiac repolarization, especially during atrial fibrillation (AF). Nin...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1054/jelc.2002.33766
更新日期:2002-07-01 00:00:00
abstract::In the last 10 years the molecular substrate of a diversity of primary electrical diseases has been unraveled. Disease-causing mutations in ion-channel genes have been identified and have challenged clinical and basic electrophysiologists to mechanistically link the observed genetic aberrancies to the phenotype. Indee...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jelectrocard.2005.06.103
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:QRS-duration predicts mortality in patients with heart failure and, to a lesser extent, the general population. However, in patients with diabetes, its prognostic significance is unknown. To better understand how QRS-duration relates to mortality among those with diabetes, we explored survival as a function ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2019.11.053
更新日期:2020-01-01 00:00:00
abstract:AIMS:To study the effect of electrical neurostimulation on the ST segment shift in patients with ST elevation myocardial infarction (STEMI) with residual ST elevation after primary percutaneous coronary intervention (PCI). METHODS:After primary PCI, 38 patients with STEMI were divided into 2 groups. Group 1 received 1...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2007.05.014
更新日期:2007-11-01 00:00:00
abstract::Hidden Markov modelling (HMM) is a powerful stochastic modelling technique that has been successfully applied to automatic speech recognition problems. We are currently investigating the application of HMM to electrocardiographic signal analysis with the goal of improving ambulatory ECG analysis. The HMM approach spec...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/0022-0736(90)90099-n
更新日期:1990-01-01 00:00:00
abstract:AIM:LBBB in heart failure patients has prognostic significance. Subtypes of LBBB (concordant and discordant) have not been considered when considering management. The aim of this study is to explore the clinical difference between the two subtypes. METHODS:216 patients with LBBB were included and categorized into conc...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2015.08.031
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:We have previously used a 12-lead, signal-processed ECG to calculate blood potassium levels. We now assess the feasibility of doing so with a smartphone-enabled single lead, to permit remote monitoring. PATIENTS AND METHODS:Twenty-one hemodialysis patients held a smartphone equipped with inexpensive FDA-appr...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2017.06.008
更新日期:2017-01-01 00:00:00
abstract:UNLABELLED:The verapamil-sensitive Belhassen tachycardia is a ventricular reentrant tachycardia, involving left-sided Purkinje fibers and abnormal Purkinje or myocardial tissue. Ablation is feasible, targeting a diastolic fascicular potential in the apical left ventricle. CASE REPORT:We report on a 13-year-old girl wi...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2011.02.003
更新日期:2011-11-01 00:00:00
abstract::Brugada syndrome is a clinical-electrocardiographic entity predisposing to malignant ventricular arrhythmias. The typical arrhythmia is polymorphic ventricular tachycardia, which can potentially degenerate to ventricular fibrillation. Monomorphic ventricular tachycardia is uncommon. Our group is reporting the case of ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2011.12.009
更新日期:2012-05-01 00:00:00
abstract::Cardiac hemangioma is a rare primary cardiac tumor. We reported the case of patient with left ventricular hemangioma who was referred to our hospital complaining of palpitation for one week. 24 h Holter revealed high episode of ventricular arrhythmia. Echocardiography showed a mass at left ventricle, which was also co...
journal_title:Journal of electrocardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jelectrocard.2017.04.014
更新日期:2017-01-01 00:00:00
abstract::An academic 12-lead electrocardiogram (ECG) core laboratory aims to provide the highest possible quality ECG recording, measurement, and storage to aid clinicians in research into important cardiovascular outcomes and to maximize the credibility of scientific results based solely, or in part, on ECG data. This positio...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1054/jelc.2001.22028
更新日期:2001-01-01 00:00:00
abstract::A patient who had chronic coarse atrial fibrillation developed severe hyperkalemia accompanied by total loss of fibrillatory waves while an irregularly irregular ventricular rhythm persisted. Correction of hyperkalemia resulted in prompt return of coarse atrial fibrillation. This sequence of events renders strong supp...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(75)80040-9
更新日期:1975-01-01 00:00:00
abstract::This article concerns a currently reported hypothesis explaining the alternations of conduction time during intra atrioventricular (AV) nodal reentrant tachycardia (AVNRT). This hypothesis supposes simple mutual influence of sequences of intranodal conduction during reentry tachycardia that use the same circuit in dif...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/0022-0736(89)90024-1
更新日期:1989-01-01 00:00:00
abstract::Many electrocardiographic criteria have been proposed for the differentiation of ventricular extrasystole and supraventricular conduction with aberrancy in atrial fibrillation but the validity of these have not been confirmed by intracardiac studies. We recorded His bundle electrograms in nineteen patients (eleven men...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(85)80033-9
更新日期:1985-01-01 00:00:00
abstract::To elucidate the electrocardiographic (ECG) characteristics of dilated cardiomyopathy (DCM), the authors analyzed the 12-lead ECGs and echocardiograms in 45 patients with DCM, 54 patients with left ventricular (LV) dilatation secondary to valvular heart disease (VHD), 101 hypertensive patients with LV hypertrophy, and...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(05)80270-5
更新日期:1994-10-01 00:00:00
abstract::The utility of vectorcardiographic relative QRS loop area criteria in identifying significant hemodynamic abnormality (a mean pulmonary artery pressure greater than 25 mmHg and/or a pulmonary to systemic flow ratio greater than 1.5) in patients with cardiac lesions associated with selective right ventricular overload ...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(83)80159-9
更新日期:1983-01-01 00:00:00
abstract::The ECG phenomena in 20 outpatients (121 episodes) suffering from variant angina with transient ST segment elevation greater than 1.5 mm. (Prinzmetal angina) were studied by Holter monitoring. The most important changes in the ECG morphology were: a) increased height of the R wave in all cases, b) the S wave decreased...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(85)80051-0
更新日期:1985-07-01 00:00:00
abstract::We present a case of an anterior ST-segment elevation acute coronary syndrome secondary to occlusion of a non-dominant right coronary artery. Usually, an anterior ST-segment elevation corresponds to a left anterior descending artery occlusion; however, in rare cases it can be secondary to a non-dominant right coronary...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/j.jelectrocard.2018.07.017
更新日期:2018-01-01 00:00:00
abstract::To show that cycle-length (CL) prolongation occurring at the onset of reentrant tachycardias may be associated with an increase in conduction time (CT), and to investigate the involvement of Na+ and Ca2+ channel activity, reentrant activity was induced by programmed stimulation in thin ventricular muscle slices with a...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1054/jelc.2000.18107
更新日期:2000-10-01 00:00:00
abstract::The present study was performed to evaluate the specificity of twin peaked P wave (TWPP) for left atrial overload (LOA) in orthogonal ECGs. A total of 2093 ECGs recorded with Frank's corrected orthogonal leads were used for analysis. It can be concluded from the present study that (1) TWPP is diagnostically non-specif...
journal_title:Journal of electrocardiology
pub_type: 杂志文章
doi:10.1016/s0022-0736(80)80051-3
更新日期:1980-04-01 00:00:00