Prognostic value of heart rate variability in patients with hypertrophic cardiomyopathy.

abstract：:Placement of the precordial electrodes for recording a 12-lead electrocardiogram (ECG) is subject to variation. Previous research has shown that displacement, especially in the longitudinal direction, can lead to changes in diagnosis. In practice, both the displacement and the effects of displacement on an individual ...

journal_title：Journal of electrocardiology

authors： Schijvenaars RJ,Kors JA,van Herpen G,van Bemmel JH

更新日期：1996-01-01 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

authors： Gulamhusein S,Yee R,Ko PT,Klein GJ

更新日期：1985-01-01 00:00:00

abstract：:Vectorcardiograms were recorded by the canine modification of the axial lead system of McFee and Parungao from 38 necropsy-verified normal dogs placed in the recommended position of right lateral recumbency. A digital computer program was used to identify and analyze the spatial characteristics of the QRSsE loop. In o...

journal_title：Journal of electrocardiology

authors： Musselman EE

更新日期：1983-07-01 00:00:00

abstract：:The electrocardiogram (ECG) is a relatively insensitive tool for the detection of right ventricular hypertrophy (RVH), but some criteria have high specificity. The recommended ECG screening criteria for RVH are not sufficiently sensitive or specific for screening for mild RVH in adults without clinical cardiovascular ...

journal_title：Journal of electrocardiology

authors： Nikus K,Pérez-Riera AR,Konttila K,Barbosa-Barros R

更新日期：2018-01-01 00:00:00

abstract：:A case of concealed ventricular bigeminy is reported in which the number of sinus QRS complexes intervening between two successive noninterpolated extrasystoles was always uneven. Coupling intervals of manifest extrasystoles to the preceding sinus QRS complexes were almost fixed and much longer than sinus QT intervals...

journal_title：Journal of electrocardiology

authors： Kinoshita S,Tanabe Y,Satoh T

更新日期：1996-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Descriptions of the significance of ST segment or QRS abnormalities in myocarditis are limited because documentation of the diagnosis has previously required myocardial biopsy. Late gadolinium enhancement (LGE) and T2 weighted imaging in the midventricular wall on cardiac magnetic resonance imagi...

journal_title：Journal of electrocardiology

authors： Jhamnani S,Fuisz A,Lindsay J

更新日期：2014-11-01 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

authors： Momiyama Y,Mitamura H,Kimura M

更新日期：1994-10-01 00:00:00

abstract：:The de Winter electrocardiogram (ECG) pattern may signify proximal left anterior descending artery (LAD) occlusion and was suggested to be managed as ST-segment elevation myocardial infarction (STEMI) equivalent for urgent angiography and reperfusion therapy. However, cardiac catheter laboratory is not readily or time...

journal_title：Journal of electrocardiology

authors： Xu W,Xu L,Peng J,Huang S

更新日期：2019-01-01 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

authors： Ghersin I,Zahran M,Azzam ZS,Suleiman M,Bahouth F

更新日期：2020-01-01 00:00:00

abstract：:Standard 12-lead electrocardiograms with a Q wave in lead V1 were obtained from 32 subjects without organic cardiac disease and analyzed for features that might characterize an abnormal atrioventricular conduction through the fasciculoventricular Mahaim fiber. Following an infusion of ajmaline, the Q wave in V1 vanish...

journal_title：Journal of electrocardiology

authors： Miyaguchi K,Tsuzuki J,Yokota M,Hayashi H

更新日期：1992-10-01 00:00:00

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：:A method has been developed for establishing a "University Without Walls" for the purpose of studying the relationship between electrocardiographic estimation and magnetic resonance imaging measurements of myocardial infarct size. The research team includes faculty and students from 4 medical centers, with expertise e...

journal_title：Journal of electrocardiology

authors： Wagner GS,Engblom H,Billgren T,Carlsson M,Hedstrom E,Ugander M,Selvester RH,Arheden H,Eisenstein E,Kasper J,White R

更新日期：2001-01-01 00:00:00

abstract：:The relative contributions of left ventricular structural changes, dysfunction, and subendocardial ischemia in determining electrocardiographic repolarization abnormalities were assessed in 53 patients with chronic, pure aortic regurgitation and no evidence of coronary artery disease. Thirty-six patients with an abnor...

journal_title：Journal of electrocardiology

authors： Badano L,Rubartelli P,Giunta L,Della Rovere F,Miccoli F,Lucatti A

更新日期：1994-07-01 00:00:00

abstract：BACKGROUND:Elevated levels of N-terminal pro brain natriuretic peptide (NT-proBNP) are associated with adverse cardiovascular outcome after ST elevation myocardial infarction (STEMI). We hypothesized that decreasing acuteness-score (based on the electrocardiographic score by Anderson-Wilkins acuteness score of myocardi...

journal_title：Journal of electrocardiology

authors： Fakhri Y,Schoos MM,Sejersten M,Ersbøll M,Valeur N,Køber L,Hassager C,Wagner GS,Kastrup J,Clemmensen P

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:Recent research has established that a tall R-wave in V1 indicates lateral wall involvement in non-anterior wall myocardial infarction (MI). The objective of this study was to assess the value of the admission electrocardiogram (ECG) to predict R-waves and consequently lateral wall damage in the late phase of n...

journal_title：Journal of electrocardiology

authors： Norda S,van der Weg K,Vos R,Gorgels AP

更新日期：2015-07-01 00:00:00

abstract：:A successive RR interval plot was developed to analyze arrhythmia. The plot consisted of a set of points with the x-value of (N)th RR interval and the y-value of (N + 1)th RR interval. This method was applied in the arrhythmia analysis of Holter electrocardiograms obtained from 35 patients. In the analysis of ventricu...

journal_title：Journal of electrocardiology

authors： Anan T,Sunagawa K,Araki H,Nakamura M

更新日期：1990-07-01 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：:Normal pacemaker and defibrillator function can occasionally mimic device malfunction. A thorough understanding of timing cycles and familiarity with company-specific pacing algorithms can often avoid unnecessary confusion. ...

journal_title：Journal of electrocardiology

authors： Ortman M

更新日期：2012-11-01 00:00:00

abstract：:Left ventricular (LV) dysfunction after myocardial infarction is associated with higher risk of serious ventricular arrhythmias and sudden death. We suspected that heterogeneity in ventricular repolarization contributes to these arrhythmias. To quantify this heterogeneity, we measured the recovery time (the interval b...

journal_title：Journal of electrocardiology

authors： Mine T,Shimizu H,Inazumi T,Iwasaki T

更新日期：2003-01-01 00:00:00

abstract：UNLABELLED:PROBLEM PRESENTED: A novel study of catheter ablation of the right pulmonary artery ganglionated plexi (RPA GP) to reduce atrial fibrillation (AF) originating in the pulmonary veins (PVs) is presented. STUDIES UNDERTAKEN:In 20 dogs, atrial effective refractory periods (AERPs), PVERP, and the dispersion of A...

journal_title：Journal of electrocardiology

authors： Wang H,Li J,Hong C,Liu X,Shang F,He Y,Wang Z,Zheng Q

更新日期：2010-07-01 00:00:00

abstract：:The contributions of reduced conduction velocity (CV) and prolonged action potential duration (APD) to QT interval prolongation and T wave and T vector loop morphology in left ventricular hypertrophy (LVH) were studied using an analytical computer model. Three types of anatomic LVH were simulated: concentric and eccen...

journal_title：Journal of electrocardiology

authors： Bacharova L,Szathmary V,Mateasik A

更新日期：2010-11-01 00:00:00

abstract：:Dilated cardiomyopathy is associated with an increase in transverse plane QRS voltage but a decrease in frontal plane QRS voltage. To study this paradoxical relationship further, electrocardiograms (ECGs) were retrospectively analyzed from five groups of men. Frontal plane QRS voltage was computed as the sum of peak-t...

journal_title：Journal of electrocardiology

authors： Goldberger AL,Dresselhaus T,Bhargava V

更新日期：1985-01-01 00:00:00

abstract：:Isomagnetic maps were recorded in normal subjects and in patients with systolic overloading of the right ventricle. The isomagnetic maps examined in this study indicated the instantaneous current source of the heart by applying the "corkscrew rule." The magnetic field recorded by a second derivative gradiometer detect...

journal_title：Journal of electrocardiology

authors： Nakaya Y,Takeuchi A,Nii H,Katayama M,Nomura M,Fujino K,Saito K,Mori H

更新日期：1988-04-01 00:00:00

abstract：:The classic electrocardiographic (ECG) manifestation of stage I of acute pericarditis is diffuse ST elevation and PR depression with ST depression in lead aVR. One of the most common conditions, that is often confused with acute pericarditis, is the benign diffuse ST elevation, termed "early repolarization with ST ele...

journal_title：Journal of electrocardiology

authors： Birnbaum Y,Perez Riera AR,Nikus K

更新日期：2019-01-01 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：:Forty-three patients with their first acute inferior wall myocardial infarction (IWMI) were divided into three groups according to the R/Q ratio in standard lead II. This was done to correlate these groups with the characteristic course of electrocardiographic stages. The R/Q ratio was measured on the ninth day of fol...

journal_title：Journal of electrocardiology

authors： Klainman E,Sclarovsky S,Mager A,Topaz O,Agmon J

更新日期：1988-11-01 00:00:00

abstract：:We are reporting a series of 13 out of a total of 16 patients in whom sinus nodal activity was recorded with the use of intra-atrial electrodes, during diagnostic His-bundle electrocardiography investigations. The protocol consisted of the simultaneous monitoring of the following intra-atrial points: high right atrium...

journal_title：Journal of electrocardiology

authors： Hombach V,Gil-Sanchez D,Zanker R,Behrenbeck DW,Tauchert M,Hilger HH

更新日期：1979-10-01 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

authors： Mann DE,Florek RC,Reiter MJ

更新日期：1992-01-01 00:00:00

abstract：:This contribution demonstrates some applications of the most recent release of ECGSIM, an interactive simulation program that enables the user to study the relationship between the electric current sources of the heart and the resulting electrocardiographic signals on the body surface as well as those on the surface o...

journal_title：Journal of electrocardiology

authors： van Oosterom A,Oostendorp TF,van Dam PM

更新日期：2011-09-01 00:00:00

abstract：:Ventricular tachycardia arising from a healed myocardial infarction scar continues to be a significant cause of morbidity and mortality. Drug therapy has been inadequate to meet this challenge, and implantable devices are limited by expense and technical problems. We have proposed the use of gene therapy for cardiac a...

journal_title：Journal of electrocardiology

authors： Donahue JK,Sasano T,Kelemen K

更新日期：2007-11-01 00:00:00