Abstract：
:The efficacy and safety of autodecremental pacing (ADP) to interrupt ventricular tachycardia (VT) and atrial flutter was examined. Once tachycardia was recognized, ADP was initiated using a short train of stimuli with gradual shortening (3%) of the interstimulus interval. ADP was applied to 13 consecutive patients during 75 episodes of VT (mostly following induction by ventricular stimulation). Successful interruption of VT occurred in 88% of the episodes. In 6 episodes (8%), ADP resulted in ventricular fibrillation and in 3 episodes VT was unaffected by ADP. The only significant discriminator between the failure or success of ADP was the rate of VT. ADP was also applied to 17 consecutive patients with an atrial flutter that was resistant to conventional antiarrhythmic agents. Successful conversion of atrial flutter to sinus was seen in only 8 patients (47%). A temporary acceleration to atrial fibrillation appeared in 3 patients (18%), and in 6 patients atrial flutter was unaffected by ADP. ADP was successful in 70% (7/10) of patients with type 1 (< 300 beats/min) atrial flutter. The authors conclude that ADP is beneficial in the interruption of VT and atrial flutter in a selected group of patients, especially with a slower rate of tachyarrhythmia (atrial rate during atrial flutter < 300 beats/min and ventricular tachycardia < 180 beats/min).
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
Waksman R,Pollack A,Berkovits BV,Nassar H,Gotsman MS,Hasin Ydoi
10.1016/0022-0736(92)90040-7keywords:
subject
Has Abstractpub_date
1992-10-01 00:00:00pages
339-44issue
4eissn
0022-0736issn
1532-8430journal_volume
25pub_type
杂志文章abstract：AIMS:Hypertension is a major risk factor for atrial fibrillation (AF); however, reliable non-invasive tools to assess AF risk in hypertensive patients are lacking. We sought to evaluate the efficacy of P wave wavelet analysis in predicting AF risk recurrence in a hypertensive cohort. METHODS:We studied 37 hypertensive...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2015.07.012
更新日期：2015-09-01 00:00:00
abstract：:Benign Early Repolarization is seen most commonly in young males and is thought to arise from left ventricular hypertrophy, vagal tone and hereditary predilection. This case describes an elderly man with Early Repolarization mimicking acute myocardial infarction after a carotid stent procedure. ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.05.002
更新日期：2020-01-01 00:00:00
abstract：:Eight sets of electrocardiographic (ECG) criteria for the localization of accessory conduction pathway (ACP) were evaluated on 182 patients with a single ACP. The Rosenbaum criteria identified 78.6% of the left-sided and 94.0% of the right-sided ACPs. Four of the other seven sets of criteria demonstrated a sensitivity...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(92)90005-k
更新日期：1992-07-01 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
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2004.07.002
更新日期：2004-10-01 00:00:00
abstract：BACKGROUND:While J-waves were observed in healthy populations, variations in their reported incidence may be partly explicable by the ECG filter setting. METHODS:We obtained resting 12-lead ECG recordings in 665 consecutive patients and enrolled 112 (56 men, 56 women, mean age 59.3±16.1years) who manifested J-waves on...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2013.10.001
更新日期：2014-01-01 00:00:00
abstract：BACKGROUND:There is a controversy regarding the association between QRS width and ventricular arrhythmias (VAs). We hypothesized that predictive value of the QRS width could be improved if QRS width were considered in the context of the sum magnitude of the absolute QRST integral in 3 orthogonal leads sum absolute QRST...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2010.07.013
更新日期：2010-11-01 00:00:00
abstract：:Electrocardiograms were taken from a 67-year-old man with 2:1 atrioventricular block in whom alternating reversed Wenckebach periodicity was found. Long PR intervals of alternately conducted P waves progressively shortened until an alternate P wave was blocked. After an alternate P wave was blocked, the next alternate...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1054/jelc.2003.50010
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Differentiation of wide complex tachycardias (WCTs) into ventricular tachycardia (VT) or supraventricular wide complex tachycardia (SWCT) using conventional manually-operated electrocardiogram (ECG) interpretation methods is difficult. Recent research has shown that accurate WCT differentiation may be accomp...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.05.004
更新日期：2020-01-01 00:00:00
abstract：:Body surface isopotential maps around early ventricular activation were investigated in 30 normal subjects by the use of the authors' signal-averaged body surface mapping system. The number of beats averaged was 96-154 (mean, 127). Two distinct patterns were recognized in the appearance of a maximum at the onset of ve...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(91)90025-h
更新日期：1991-07-01 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
pub_type： 杂志文章
doi：10.1016/s0022-0736(83)80004-1
更新日期：1983-07-01 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
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.11.016
更新日期：2020-12-03 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
pub_type： 杂志文章,评审
doi：10.1016/j.jelectrocard.2004.08.006
更新日期：2004-01-01 00:00:00
abstract：:Heart muscle diseases are traditionally classified according to their peculiar pathophysiologic features such as "dilated," "hypertrophic," "restrictive," and "arrhythmogenic right ventricular" cardiomyopathy. The extraordinary advances accomplished in the last two decades in molecular genetics have allowed the identi...
journal_title：Journal of electrocardiology
pub_type： 杂志文章,评审
doi：10.1016/j.jelectrocard.2005.06.101
更新日期：2005-10-01 00:00:00
abstract：BACKGROUND:Cardiac magnetic resonance (CMR) is currently considered the reference standard for in vivo assessment of myocardial infarction (MI). There is, however, no international consensus on how MI quantification from CMR should be performed. The aim of this study was to test how previously published manual quantifi...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2011.06.007
更新日期：2011-09-01 00:00:00
abstract：:Recent studies have shown that ventricular myocardium is composed of at least 3 electrophysiologically distinct cell types: epicardial, endocardial, and M cells. Action potentials recorded from epicardial and M cells, unlike those recorded from endocardium, display a spike-and-dome morphology, the result of a prominen...
journal_title：Journal of electrocardiology
pub_type： 杂志文章,评审
doi：10.1016/s0022-0736(99)90074-2
更新日期：1999-01-01 00:00:00
abstract：BACKGROUND:Measuring repolarization characteristics is challenging and has been reserved for experienced physicians. In electrocardiographic imaging (ECGI), activation-recovery interval (ARI) is used as a measure of local cardiac repolarization duration. We hypothesized that repolarization characteristics, such as loca...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.02.003
更新日期：2020-01-01 00:00:00
abstract：:This study investigates a technique to estimate dispersion based on the root mean square (RMS) signal of multiple electrocardiographic leads. Activation and recovery times were measured from 64 sites on the epicardium of canine hearts using acute in situ or Langendorff perfused isolated heart preparations. Repolarizat...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(00)80073-4
更新日期：2000-04-01 00:00:00
abstract：:Until recently, ECG accuracy in localizing acute myocardial infarction (AMI) could be assessed only by comparing the ECGs with autopsy findings. This approach, however, preselected patients, including only those who died. It is possible that this postmortem group of patients would be different from the whole populatio...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(82)80014-9
更新日期：1982-04-01 00:00:00
abstract：:Sudden cardiac death occurs as a result of a complex interplay of changes in myocardial substrate, imbalance of autonomic regulation of the heart, and myocardial vulnerability. Noninvasive electrocardiology serves as a comprehensive tool for investigating factors representing mechanistic pathways leading to cardiac ev...
journal_title：Journal of electrocardiology
pub_type： 杂志文章,评审
doi：10.1016/j.jelectrocard.2003.09.022
更新日期：2003-01-01 00:00:00
abstract：:The JTp interval gained interest as a marker differentiating effects of drugs on cardiac ion channels. For JTp interval, both the beginning - identification of J point and identification of T wave end remains the subject of substantial variability. We aimed to analyze diagnostic and prognostic performance of JTp inter...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2017.07.019
更新日期：2017-01-01 00:00:00
abstract：:A 58-year-old woman with a history of multi-origin atrial tachycardia and limb-girdle muscular dystrophy was treated for presyncope caused by pauses in atrial rhythm. A dual-chamber pacemaker was implanted. The low-voltage area extended broadly, but 10-V pacing could not capture the large right atrium, including the r...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2020.05.003
更新日期：2020-01-01 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：:Morphology of ventricular ectopic complexes was examined in 1,746 ECGs of 149 patients with permanent ventricular pacemakers. In 20 of 80 patients (25%) the morphology of ventricular ectopic complexes was similar to that of the paced complex. This resulted in a ventricular couplet where the spontaneous premature compl...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(80)80039-2
更新日期：1980-04-01 00:00:00
abstract：:Patients with paroxysmal atrial fibrillation (AF) have greater overall P wave magnitude than control subjects, but the temporal localization of the increased energy is unknown. P wave spectral turbulence has not been investigated in such patients, and the optimum methodology for studying P wave signals has not been de...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(97)80013-1
更新日期：1997-04-01 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 ability of ECG-VCG to predict the severity of postinfarction LV asynergy was evaluated in 152 patients with previous myocardial infarction who underwent left cineventriculography in the right anterior oblique view. Various ECG and VCG signs were examined in order to predict the existence of severe asynergy in gene...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(84)81092-4
更新日期：1984-04-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.jelectrocard.2016.09.007
更新日期：2017-01-01 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
pub_type： 杂志文章
doi：10.1016/s0022-0736(85)80029-7
更新日期：1985-01-01 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
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2010.07.005
更新日期：2010-11-01 00:00:00
abstract：:From a population of 304 patients who were operated on for atrial septal defects, 25 patients with primum defects and 78 patients with secundum defects were studied with regard to the ability of various quantitative axial lead vectorcardiographic (VCG) data to predict the anatomical type of defect. The patients includ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(75)80023-9
更新日期：1975-01-01 00:00:00
