2:1 left bundle branch block in acute bacterial endocarditis with septal abscess.

abstract：:Strength-interval curves and conduction times were determined in anesthetized dogs during and following myocardial ischemia using a computerized system capable of determining a 5 point strength-interval curve with conduction times within 20 seconds. At the peak incidence of ligation arrhythmias (5 minutes of ischemia)...

journal_title：Journal of electrocardiology

authors： Avitall B,Naimi S,Levine HJ,Mieszala J

更新日期：1979-07-01 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

authors： Okamoto N,Ohsawa N

更新日期：1988-01-01 00:00:00

abstract：BACKGROUND:Most patients presenting with suspected acute coronary syndrome (ACS) are admitted to telemetry units. While telemetry is an appropriate level of care, acute complications requiring a higher level of care in the intensive care unit (ICU) occur. PURPOSE:Among patients admitted to telemetry for suspected ACS,...

journal_title：Journal of electrocardiology

authors： Pelter MM,Loranger D,Kozik TM,Fidler R,Hu X,Carey MG

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:ECG screening of young athletes for risk of sudden cardiac death has grown in popularity throughout the world. The purpose of this study is to assess the technical error rate of ECGs acquired by appropriately trained community volunteers compared to that reported in the literature utilizing train...

journal_title：Journal of electrocardiology

authors： Marek JC,Marek SA,Marek KA,Zimmerman F

更新日期：2015-05-01 00:00:00

abstract：:A comparison was performed between the points measured using the Selvester QRS scoring system in 60 electrocardiograms (ECGs) displayed in both a standard format as well as a 4-fold magnified (quad-plot) format. Fifty criteria (a maximum possibility of 31 points) were evaluated in each ECG. The data indicate that in 5...

journal_title：Journal of electrocardiology

authors： Wagner GS,Greenfield JC Jr,Rembert JC,Warren JW,Albano A,Palmeri MA,Horácek BM

更新日期：2007-07-01 00:00:00

abstract：:Considerable efforts have been invested recently to improve electrocardiographic (ECG) classification accuracy for left ventricular hypertrophy (LVH). This study examines how LVH classification accuracy is influenced by (1) the selection of an echocardiographic standard for LVH, (2) LVH severity level in the test grou...

journal_title：Journal of electrocardiology

authors： Rautaharju PM,Zhou SH,Park LP

更新日期：1996-01-01 00:00:00

abstract：:Exercise testing was evaluated in 51 patients with critical left coronary artery disease (LCA) documented by coronary arteriography within two weeks of their bicycle ergometer (26 patients) or treadmill (25 patients) electrocardiographic study. Adequate tests, as defined by the patient having reached 85% of predicted ...

journal_title：Journal of electrocardiology

authors： Timmis GC,Westveer DC,Gordon S,Ramos RG,Gangadharan V

更新日期：1979-07-01 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

authors： De Bie J,Martignani C,Massaro G,Diemberger I

更新日期：2020-01-01 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：:One of the most important components of mechanoelectric coupling is stretch-activated channels, sarcolemmal channels that open upon mechanical stimuli. Uncovering the mechanisms by which stretch-activated channels contribute to ventricular arrhythmogenesis under a variety of pathologic conditions is hampered by the la...

journal_title：Journal of electrocardiology

authors： Trayanova NA,Constantino J,Gurev V

更新日期：2010-11-01 00:00:00

abstract：:Continuously updated ST-segment recovery analysis has been shown to accurately predict infarct-related artery patency. Salient principles were converted into algorithms and incorporated into a portable ST monitor for optimal application. This study tested the automated program's ability to detect occlusion and reperfu...

journal_title：Journal of electrocardiology

authors： Veldkamp RF,Sawchak S,Pope JE,Califf RM,Krucoff MW

更新日期：1996-10-01 00:00:00

abstract：BACKGROUND:Conflicting results have been reported on the predictive value of the electrocardiographic left ventricular hypertrophy (LVH) in the general population. This meta-analysis sought to compare the predictive value of different electrocardiographic criteria of LVH in the general population. METHODS:We comprehen...

journal_title：Journal of electrocardiology

authors： You Z,He T,Ding Y,Yang L,Jiang X,Huang L

更新日期：2020-01-01 00:00:00

abstract：:Although solid angle analysis has been considered to be reasonable for explaining the distribution of ST segment deviation following ischemia, it has not been tested fully, especially for ST segment changes in various sites at different lead surfaces. Thus, we investigated the applicability of solid angle theory to th...

journal_title：Journal of electrocardiology

authors： Maehara K,Kyono H,Kitaoka S,Shimizu Y,Maruyama Y,Ashikawa K,Ino-Oka E,Takishima T

更新日期：1986-07-01 00:00:00

abstract：:This article shows the use of the equivalent surface source model in its application to the genesis of the surface ECG in which the sources are of the double layer type. This model has previously been shown to yield an accurate description of body surface potentials during the QRS interval. Its application to the gene...

journal_title：Journal of electrocardiology

authors： van Oosterom A

更新日期：2001-01-01 00:00:00

abstract：:A retrospective study was conducted to define the incidence of ventricular ectopic beats with exit block (concealed extrasystoles). Of 904 Holter recordings, 92 were admitted for study on the basis of sufficient ventricular ectopic beats on rhythm strips. Concealed bigeminy conforming to the equation of S = 2n - 1 (wh...

journal_title：Journal of electrocardiology

authors： Anderson GJ,Greenspan M

更新日期：1983-04-01 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：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

authors： Pizzuto MF,Valverde AM,Heavey BM,Banas MD,Michelakis N,Suzuki G,Fallavollita JA,Canty JM Jr

更新日期：2006-10-01 00:00:00

abstract：:His bundle electrograms of 40 patients developing Wenckebach block during atrial pacing and four with spontaneous Wenckebach block above the His were reviewed to determine the frequency of classical Wenckebach periodicity. Thirty patients had 143 Wenckebach cycles that were suitable for analysis. Cycles were evaluated...

journal_title：Journal of electrocardiology

authors： Friedman HS,Gomes JA,Haft JI

更新日期：1975-01-01 00:00:00

abstract：:The paper electrocardiogram (ECG) has been widely used for cardiac assessment for well over a century. ECGs can be obtained quickly and cheaply. For this reason, an ever-growing amount of paper ECG records continue to accumulate, some of which are stored into a paper-only format. Converting paper ECGs into digital for...

journal_title：Journal of electrocardiology

authors： Waits GS,Soliman EZ

更新日期：2017-01-01 00:00:00

abstract：BACKGROUND:It has been reported in the literature that the increase in body temperature shortens QT interval on electrocardiogram through heart rate modulation. However, the effects of fever on ventricular repolarization are not clearly known. This study elaborates on QT interval of isolated fever, corrected QT (cQT), ...

journal_title：Journal of electrocardiology

authors： Gökçen E,Savrun A

更新日期：2020-12-03 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：: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:The prevalence and determinants of QRS transition zones are not well established. METHODS:We examined the distributions of Normal, clockwise (CW) and counterclockwise (CCW)) QRS transition zones and their relations to disease, body size and demographics in 4624 black and white men and women free of cardiova...

journal_title：Journal of electrocardiology

authors： Prineas RJ,Zhang ZM,Stevens CE,Soliman EZ

更新日期：2018-01-01 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：:In a patient with the sick sinus syndrome and near syncope a prolonged sinus pause was documented and reproduced thereafter during sustained deep inspiration. Administration of intravenous atropine abolished this phenomenon, most probably indicating a hyperresponsiveness of the sinus node and AV junction to a vagotoni...

journal_title：Journal of electrocardiology

authors： Strasberg B,Sclarovsky S,Arditti A,Lewin RF,Agmon J

更新日期：1986-01-01 00:00:00

abstract：:A 65-year old male originally presented with repetitive ventricular bigeminal sequences demonstrating progressive prolongation of successive coupling intervals suggesting Wenckeback-type exit block. An even number distribution of conducted beats always intervened between bigeminal sequences. Subsequent analysis proved...

journal_title：Journal of electrocardiology

authors： Lightfoot PR

更新日期：1978-10-01 00:00:00

abstract：:The importance of plasma electrolytes and pH levels in determining heart rate is not yet well grounded. Hemodynamic and biochemical data were collected during 8 purely diffusive hemodialysis, which allowed changes in extracellular fluid to be achieved without eliciting notable changes in the autonomic control of heart...

journal_title：Journal of electrocardiology

authors： Severi S,Cavalcanti S,Mancini E,Santoro A

更新日期：2002-04-01 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：: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