Abstract：
:Precordial electrocardiographic leads V1, V2, V5, V6, and limb leads I and II were recorded simultaneously utilizing radio transparent electrodes and wire leads during coronary angiography in 35 patients with obstructive coronary disease and in 17 subjects with normal coronary angiograms. The pattern of electrocardiographic changes produced by injection of contrast material into either the right or left coronary artery was similar in both groups of patients. During injections into the left coronary artery a leftward shift of the QRS occurred. Injections into the right coronary artery also produced a leftward shift of depolarization forces but, in addition, the QRS became inferiorly directed more consistently than during left coronary injections. The changes produced by angiography in the pattern of repolarization consisted of a marked increase in T wave amplitude and the transient appearance of large U waves. The changes in T waves were consistently opposite in direction to those of the QRS. The polarity of the U wave coincided with that of the T wave in the majority of cases. No consistent differences in the pattern of electrocardiographic changes were observed in subjects with a dominant right coronary artery from those with a dominant left system nor in subjects with normal coronaries from those with occlusive coronary disease.
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
McCans JL,Castillo HT,Swanick EJ,Marriott HJdoi
10.1016/s0022-0736(76)80047-7subject
Has Abstractpub_date
1976-01-01 00:00:00pages
211-4issue
3eissn
0022-0736issn
1532-8430journal_volume
9pub_type
杂志文章abstract：:The Brugada syndrome is characterized by ST-segment elevation in the right precordial leads (V1 through V3) and an episode of ventricular fibrillation in the absence of structural heart disease. SCN5A, the gene encoding the alpha subunit of the sodium channel, is the only gene thus far linked to the Brugada syndrome b...
journal_title：Journal of electrocardiology
pub_type： 杂志文章,评审
doi：10.1016/j.jelectrocard.2005.06.005
更新日期：2005-10-01 00:00:00
abstract：:Sinus rhythm tracings, including sinus tachycardia and bradycardia, are characterized quantitatively by means of an ECG measurement program which has been subjected to rigorous evaluation. The analysis is performed on tracings of short duration (10 sec). The features of regularity and stability are considered for the ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(76)80063-5
更新日期：1976-04-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate the nature and onset of changes in the QRS complex in the offspring of patients with diabetes mellitus (DM) and metabolic syndrome (MetS). METHODS AND METHODS:A total of 529 subjects, divided into 5 groups, were included in the study: (i) group DM (n = 92), patients with...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2012.02.004
更新日期：2012-05-01 00:00:00
abstract：:The authors comment on the present status of computerized electro-cardiogram (ECG) works in Japan and demonstrate the preliminary tentative results of CSE (common standards for quantitative electrocardiography) data analysis using the Nagoya program. The more detailed results of the performance of several programs in ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(88)90087-8
更新日期：1988-01-01 00:00:00
abstract：:We studied the influence of exercise level, severity of coronary artery disease (CAD), presence of previous myocardial infarction (MI), anterior or diaphragmatic, on the clinical value of exertional Q wave changes (Delta-Q). We retrospectively evaluated the exercise electrocardiograms of 62 patients without angiograph...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(88)80023-2
更新日期：1988-01-01 00:00:00
abstract：:In 19 pentobarbital anesthetized dogs subjected to right thoracotomy, plunge wire and catheter electrodes were positioned to record and pace from the high right atrium, coronary sinus os, aortic root (for His bundle electrograms), and the right ventricular outflow tract and apex. A deflectable-tip catheter electrode w...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:In eighteen patients with atrioventricular conduction disturbance, His bundle electrograms were studied via the arm vein. A 6F Berkovits-Castellanos USCI hexapolar electrode catheter was introduced into the right atrium and looped across the tricuspid valve in a "golf club" shape. The main aim was to leave the two dis...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(81)80046-5
更新日期：1981-01-01 00:00:00
abstract：:New developments in instrumentation, in clinical application, as well as in data analysis and visualization have provided new momentum to magnetocardiography (MCG). On one hand robust, easy to use and budget-priced MCG-systems entered the market and are applied to a multi-centred clinical study. On the other hand high...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2004.08.035
更新日期：2004-01-01 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：: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：PURPOSE:We conducted a systematic review and meta-analysis of randomized and observational studies to evaluate the associations between QRS duration (QRSd) at baseline or in follow-up and outcomes with cardiac resynchronization therapy (CRT). METHODS:We searched online databases to December 2010 and included 6 randomi...
journal_title：Journal of electrocardiology
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jelectrocard.2012.12.003
更新日期：2013-03-01 00:00:00
abstract：BACKGROUND:As technology infiltrates more of our personal and professional lives, user expectations for intuitive design have driven many consumer products, while medical equipment continues to have high training requirements. Not much is known about the usability and user experience associated with hospital monitoring...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2015.08.032
更新日期：2015-11-01 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：:The present study describes the successful radiofrequency ablation of an uncommon type of A-V nodal tachycardia. Electroanatomical mapping of the right atria was used to locate the region of the earliest atrial activation and allowed for positioning of the ablation catheter and a successful 25-watt radiofrequency burn...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1054/jelc.2002.29943
更新日期：2002-01-01 00:00:00
abstract：BACKGROUND:With increased interest in screening of young people for potential causes of sudden death, accurate automated detection of ventricular pre-excitation (VPE) or Wolff-Parkinson-White syndrome (WPW) in the pediatric resting ECG is important. Several recent studies have shown interobserver variability when readi...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2015.08.006
更新日期：2016-01-01 00:00:00
abstract：:To assess the effect of pacing drive cycle length on induction of sustained monomorphic ventricular tachycardia, 40 patients were prospectively studied in the drug-free state. Ventricular extrastimuli were sequentially delivered at the same coupling interval at each of three drive cycle lengths (600, 500, and 400 ms) ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(92)90127-l
更新日期：1992-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study is to investigate the effect of cardiac resynchronization therapy (CRT) on P wave maximum duration (PWM) and P wave dispersion (PWD) in patients with advanced heart failure. METHODS:Forty-six patients (33 men; mean age, 60 +/- 11 years) with CRT were enrolled in the present study. P...
journal_title：Journal of electrocardiology
pub_type： 临床试验,杂志文章
doi：10.1016/j.jelectrocard.2009.02.005
更新日期：2009-07-01 00:00:00
abstract：:Time course evolution of R, Q, T and ST components of the electrocardiogram during the first 12 hours of an acute myocardial infarction was studied. A comparison between anterior-extensive and anteroseptal wall infarctions (anterior group), and inferior-extensive and inferior wall infarction (inferior group) showed ap...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(87)80098-5
更新日期：1987-04-01 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：:We measured action potential duration (APD) from the endocardium (Endo) and epicardium (Epi) of the left ventricular free wall in Japanese monkey hearts and found that the APD of Endo is significantly longer than that of Epi at a stimulus cycle length of 1500 msec in normal Tyrode solution (control condition). We then...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(87)80015-8
更新日期：1987-07-01 00:00:00
abstract：BACKGROUND:ECG cable interchange can generate erroneous diagnoses. For algorithms detecting ECG cable interchange, high specificity is required to maintain a low total false positive rate because the prevalence of interchange is low. In this study, we propose and evaluate an improved algorithm for automatic detection a...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2014.08.006
更新日期：2014-11-01 00:00:00
abstract：:Extensive experience has been obtained with Medtronic pacemakers, in Glasgow where over 400 patients have received their primary implant. In this review, which covers a period of seven and a half years ending December 31, 1973, the technical reliability of electrode-leads is considered in terms of failed implant lifet...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(75)80030-6
更新日期：1975-01-01 00:00:00
abstract：:Unexplained sudden deaths following use of pentavalent antimonial drugs have been described, presumably owing to ventricular arrhythmias. A patient is reported with QT interval prolongation and syncopal episodes related to torsade de pointes following treatment of visceral leishmaniasis with meglumine antimoniate. Thi...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(97)80023-4
更新日期：1997-04-01 00:00:00
abstract：:Clinically based studies have indicated that patients who have suffered myocardial infarction (MI) exhibit lower heart rate variability (HRV). Such associations have not been reported at the population level. To investigate whether MI is related to lower HRV in the general population, the authors examined a stratified...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(96)80082-3
更新日期：1996-07-01 00:00:00
abstract：BACKGROUND:An association between paroxysmal supraventricular tachycardias (PSVT) and elevated cardiac troponin I (cTnI) has been reported in small studies, even in the absence of significant coronary artery or structural heart disease. We sought to explore the prognostic significance of elevated cTnI among patients pr...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.09.001
更新日期：2020-01-01 00:00:00
abstract：:Early recognition of ST-segment elevation myocardial infarction equivalent electrocardiogram patterns is of paramount importance. Successful identification of these ischemic patterns helps ensure proper triage of patients needing urgent restoration of coronary perfusion. The so-called de Winter sign has become increas...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.06.002
更新日期：2020-01-01 00:00:00
abstract：:In a patient with Wolff-Parkinson-White syndrome and an inferior-posterior bypass tract, transient restoration of normal conduction occurred during an attack of angina. The ECG pattern of inferior posterior ischemia was present when the conduction was normal. Thallium scintigraphy showed a reversible posterolateral pe...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(90)90165-x
更新日期：1990-07-01 00:00:00
abstract：BACKGROUND:Analysis of ST-segment elevation for assessment of patients with suspected acute coronary occlusion is in widespread use for diagnostic and prognostic purposes. In this study, changes in the QRS complex also were analyzed to determine if these changes that are seldom used clinically can provide additional pr...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2006.09.001
更新日期：2007-01-01 00:00:00
abstract：:Information from 24-hour monitoring with on-line vectorcardiography, starting immediately after admission, was compared with results from a predischarge exercise test 3-13 days after admission. A total of 169 patients with acute myocardial infarction and 73 patients with unstable angina pectoris were investigated. Pat...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(05)80045-7
更新日期：1995-10-01 00:00:00
abstract：:The numerous criteria proposed for the electrocardiographic (ECG) diagnosis of biventricular hypertrophy (BVH) suffer from inadequate correlative data. We used two-dimensional (2D) echocardiography to identify BVH and analyzed the ECG patterns in these patients. The study group had 69 such patients with BVH and the co...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
