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abstract：:Acute coronary syndromes due to involvement of the left main trunk usually present with subtotal occlusion and electrocardiographic pattern with predominant ST depression (non-ST-elevation myocardial infarction). The cases with complete occlusion frequently present an ST-elevation myocardial infarction pattern, but th...

journal_title：Journal of electrocardiology

authors： Fiol M,Carrillo A,Rodríguez A,Pascual M,Bethencourt A,Bayés de Luna A

更新日期：2012-09-01 00:00:00

abstract：:This report presents an unusual type of conduction disturbance of the left bundle branch which appeared in a patient with acute bacterial endocarditis of the aortic valve in which the septum was also invaded. This is the first case found in which the partial left bundle branch block (LBBB) was of acute inflammatory or...

journal_title：Journal of electrocardiology

authors： Fenichel NM,Jimenez FA,Polachek AA

更新日期：1977-07-01 00:00:00

abstract：:Sintered Ag-AgCl needle electrodes were used to record unipolar directly coupled (DC) electrograms transmurally from right and left ventricular myocardium. Direct coupling yields unfiltered low-frequency signal content, preserving repolarization waveform morphology. These electrograms were analyzed using completely au...

journal_title：Journal of electrocardiology

authors： Witkowski FX,Penkoske PA

更新日期：1988-08-01 00:00:00

abstract：BACKGROUND:We aimed to evaluate possible association between QRS duration (QRSD), R wave peak time (RWPT), and coronary artery disease severity identified using the SYNTAX score (SS) in patients with unstable angina pectoris (USAP) or non-ST segment elevation myocardial infarction (NSTEMI). METHOD:A total of 176 USAP/...

journal_title：Journal of electrocardiology

authors： Rencüzoğulları İ,Çağdaş M,Karakoyun S,Karabağ Y,Yesin M,Artaç İ,İliş D,Selçuk M,Öterkuş M,Tanboğa Hİ

更新日期：2018-01-01 00:00:00

abstract：AIM:To evaluate the diagnostic accuracy of electrocardiographic inferior Q waves persistence during inspiration and echocardiographic segmental wall motion abnormalities for the detection of previously unsuspected silent myocardial infarction, by using cardiac magnetic resonance as the gold standard. METHODS:We prospe...

journal_title：Journal of electrocardiology

authors： Nanni S,Lovato L,Vagnarelli F,Ghetti G,Ferlito M,Pasquale F,Russo V,Zompatori M,Bacchi Reggiani L,Semprini F,Taglieri N,Melandri G,Rapezzi C

更新日期：2016-01-01 00:00:00

abstract：:Drugs with diverse structures and from several therapeutic classes are reported to increase the risk that a patient will experience ventricular tachyarrhythmias (e.g., torsades de pointes [TdP]) during drug therapy. This review discusses the use of preclinical assays to assess the risk that a QT-prolonging drug will c...

journal_title：Journal of electrocardiology

authors： Shryock JC,Song Y,Wu L,Fraser H,Belardinelli L

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND:Electrocardiogram (ECG) screening in athletes enhances the detection of conditions associated with sudden cardiac death (SCD), but concerns remain for false positive results when conducted outside of specialized centers. This study compared ECG interpretation in college athletes between local physicians and ...

journal_title：Journal of electrocardiology

authors： Petek BJ,Drezner JA,Prutkin JM,Owens DS,Tran T,Harmon KG

更新日期：2020-01-01 00:00:00

abstract：:Body surface potential mapping is superior to 12-lead electrocardiogram in detection of acute and old myocardial infarctions. We examined the capability of the ST-T integral and T wave to detect exercise-induced ischemia in body surface potential mapping. Body surface potential mapping with 123 channels was recorded i...

journal_title：Journal of electrocardiology

authors： Hänninen H,Takala P,Rantonen J,Mäkijärvi M,Virtanen K,Nenonen J,Katila T,Toivonen L

更新日期：2003-04-01 00:00:00

abstract：INTRODUCTION:"Cardiac memory" (CM) refers to a change in repolarization induced by an altered pathway of activation, manifested after resumption of spontaneous ventricular activation (SVA). AIMS:To investigate for the first time in humans the effects of left ventricular (LV) pacing on CM development through vectorcard...

journal_title：Journal of electrocardiology

authors： Perrotta L,Ricciardi G,Pieragnoli P,Nesti M,Pontecorboli G,Fantini F,Padeletti L

更新日期：2015-07-01 00:00:00

abstract：:From 81,000 ECGs we collected 83 cases that fulfilled the criteria of Interatrial Conduction Disturbances with Left Atrial Retrograde Activation (IACD-LARA) (P +/- in II, III and VF with P width greater than or equal to 120 msec.). We present the detailed study of 35 cases with surface ECG and VCG and 29 cases with or...

journal_title：Journal of electrocardiology

authors： Bayes de Luna A,Fort de Ribot R,Trilla E,Julia J,Garcia J,Sadurni J,Riba J,Sagues F

更新日期：1985-01-01 00:00:00

abstract：AIMS:This investigation addresses procedural characteristics of catheter ablation in patients with atrial fibrillation (AF) and sinus bradycardia. METHODS:From the prospective, multi-center German Ablation Registry 1073 patients with sinus rhythm at the time of AF ablation were divided into two groups according to hea...

journal_title：Journal of electrocardiology

authors： Zylla MM,Brachmann J,Lewalter T,Hoffmann E,Kuck KH,Andresen D,Willems S,Hochadel M,Senges J,Katus HA,Thomas D

更新日期：2016-03-01 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

authors： LeBlanc AR,Nadeau RA,Roberge FA

更新日期：1976-04-01 00:00:00

abstract：:Previous studies indicate that the predictive value of atrial fibrillatory rate in patients undergoing cardioversion of atrial fibrillation (AF) of long duration is limited. The present study investigates signal entropy in this setting. Standard 12-lead electrocardiograms (ECGs) were recorded from 66 consecutive patie...

journal_title：Journal of electrocardiology

authors： Petersson R,Sandberg F,Platonov PG,Holmqvist F

更新日期：2011-03-01 00:00:00

abstract：:The electrocardiogram (ECG) remains the most immediately accessible and widely used diagnostic tool for guiding emergency treatment strategies. The ECG recorded during acute myocardial ischemia is of diagnostic, therapeutic, and prognostic significance. In patients with myocardial ischemia as a result of decreased blo...

journal_title：Journal of electrocardiology

authors： Nikus K,Pahlm O,Wagner G,Birnbaum Y,Cinca J,Clemmensen P,Eskola M,Fiol M,Goldwasser D,Gorgels A,Sclarovsky S,Stern S,Wellens H,Zareba W,de Luna AB

更新日期：2010-03-01 00:00:00

abstract：AIMS:Patients with atrioventricular (AV) block can develop left ventricular (LV) dysfunction with long-term right ventricular pacing (RVP). We investigated the role of RVP-induced LV dyssynchrony in this adverse remodeling. METHODS AND RESULTS:Nineteen patients with normal LV function undergoing pacemaker implantation...

journal_title：Journal of electrocardiology

authors： Pap R,Gallardo R,Rónaszéki D,Ágoston G,Traykov VB,Sághy L,Varga A,Forster T

更新日期：2012-07-01 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

authors： Cecconi A,Gonzalez Bartol E,Bastante T,Jimenez-Borreguero LJ,Alfonso F

更新日期：2018-01-01 00:00:00

abstract：BACKGROUND:We studied whether social media applications can serve as effective educational tools for teaching electrocardiogram (ECG) interpretation to medical residents. METHODS:39 emergency, family, and internal medicine residents participated in the 33-week "ECG of the Week" curriculum via Facebook and Twitter. ECG...

journal_title：Journal of electrocardiology

authors： Liu SS,Zakaria S,Vaidya D,Srivastava MC

更新日期：2017-01-01 00:00:00

abstract：:We report a case of an outpatient cardiac arrest due to ventricular fibrillation and resuscitated with external automated defibrillator shocks in which acute amiodarone infusion unmasked a Brugada phenotype electrocardiographic pattern. Possible interferences by this drug and suitable therapeutic actions are discussed...

journal_title：Journal of electrocardiology

authors： D'Aloia A,Vizzardi E,Bugatti S,Zanini G,Bontempi L,Curnis A

更新日期：2012-07-01 00:00:00

abstract：:No prior studies have evaluated the relationship between the site of right ventricular stimulation, the site of prior infarction, and the inducibility of ventricular tachycardia (VT). This study was performed to determine if the location of pathologic Q waves influences the inducibility of VT at various right ventricu...

journal_title：Journal of electrocardiology

authors： Harvey M,Goyal R,Knight BP,Man KC,Strickberger SA,Morady F

更新日期：1998-10-01 00:00:00

abstract：:This study employs a bifurcation analysis approach to elucidate the effect of the key ion channels on cardiac arrhythmias and thereby explain the efficacy of antiarrhythmic drugs in controlling arrhythmias. The model used for the analysis contains the key ion channels involved in the ventricular action potential--fast...

journal_title：Journal of electrocardiology

authors： Chay TR

更新日期：1995-01-01 00:00:00

abstract：:Severe bradyarrythmias remain as an important cause for hospital urgent admission and these patients can suffer potentially lethal complications (such as ventricular fibrillation [VF] and torsades de pointes [TdP]) between hospital admission and final therapy. Incidence and predictors of these tachyarrhythmias have no...

journal_title：Journal of electrocardiology

authors： Díaz-Castro O,Puchol A,Almendral J,Torrecilla EG,Arenal A,Martínez-Selles M

更新日期：2004-01-01 00:00:00

abstract：:As part of an ongoing research protocol, a patient with Wolff-Parkinson-White syndrome underwent body surface potential mapping and electrophysiologic studies before radiofrequency ablation therapy. Careful analysis of the body surface potential mapping data made it possible to distinguish four different map sequences...

journal_title：Journal of electrocardiology

authors： Lamothe MJ,Stroink G,Gardner MJ

更新日期：1996-04-01 00:00:00

abstract：OBJECTIVE:Assess effect of right ventricular pacing (RVP) on left ventricular (LV) activation in heart failure patients with left bundle branch block (LBBB). BACKGROUND:LV activation during RVP is regarded as similar to LBBB; hence novel CRT algorithms may avoid RVP by adopting "fusion" pacing with intrinsic RBB-media...

journal_title：Journal of electrocardiology

authors： Varma N

更新日期：2015-01-01 00:00:00

abstract：:Percutaneous radiofrequency catheter ablation (RFCA) has a very high success rate for certain arrhythmias, such as Wolff-Parkinson-White syndrome and idiopathic ventricular tachycardias in the right ventricular outflow tract. These arrhythmias are typically characterized by a single site of arrhythmogenic tissue that ...

journal_title：Journal of electrocardiology

authors： Moorman JW,Melen RE,Skillicorn B,Solomon EG

更新日期：1994-01-01 00:00:00

abstract：:Brugada syndrome is characterized by J wave and ST-segment elevation of right precordial leads and causes idiopathic ventricular fibrillation. We experienced a patient of Brugada syndrome with prominent J wave and ST-segment elevation not only in V(1) to V(3) but also in many leads. He suffered spontaneous ventricular...

journal_title：Journal of electrocardiology

authors： Tsunoda Y,Takeishi Y,Nozaki N,Kitahara T,Kubota I

更新日期：2004-10-01 00:00:00

abstract：:Atrial arrhythmias are diagnosed on the basis of the analysis of P wave morphology, timing and rate, the surface electrocardiogram, and intracardiac recordings. Recent intracardiac studies have demonstrated dissimilar atrial rhythms with direct intra-atrial recordings, the former otherwise not evident on the surface E...

journal_title：Journal of electrocardiology

authors： Martinez EE,Pontes S,dePaola AA,Gomes JA

更新日期：1991-04-01 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

authors： Ding L,Hua W,Zhang S,Chu J,Chen K,Wang F,Chen X

更新日期：2009-07-01 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

authors： Houltz B,Darpö B,Crijns HJ,Swedberg K,Blomström P,Jensen SM,Svernhage E,Edvardsson N

更新日期：2002-07-01 00:00:00

abstract：:This study describes a method for improving the day-to-day and minute-to-minute repeatability of the deterministic computer-assisted diagnosis of left ventricular hypertrophy. Conventional upper limits of normal for many age-dependent electrocardiographic parameters have been replaced by continuous equations, thereby,...

journal_title：Journal of electrocardiology

authors： McLaughlin SC,Aitchison TC,Macfarlane PW

更新日期：1993-01-01 00:00:00

abstract：:The vectorcardiographic basis of indeterminate QRS axis has not been elucidated. Accordingly, Frank lead VCGs were obtained on ten consecutive subjects with biphasic QRS complexes in the six extremity leads. The frontal plane vector in each case showed a very narrow loop inscribed in a symmetrical fashion around the E...

journal_title：Journal of electrocardiology

authors： Goldberger AL

更新日期：1982-01-01 00:00:00