Abstract：
INTRODUCTION:This study is to investigate ventricular repolarization on electrocardiogram (ECG) in a pediatric population receiving methylphenidate (MPH), risperidone (RIS) and combined therapy. METHODS:A total of 215 patients between 6 and 12years with ADHD/conduct disorder receiving methylphenidate, risperidone and combined therapy for minimum 3months and an untreated ADHD group (n=76) was consecutively included in the study. Twelve lead ECG parameters including mean QT, QTc, T-peak to T-end (TpTe) intervals, TpTe dispersion and TpTe/QT ratio were compared. RESULTS:QT interval, and QTc, TpTe interval, TpTe dispersion and TpTe/QTc ratio values for groups receiving RIS, MPH and combined therapy were found to be significantly higher than other groups. Moreover, in the combined therapy group TpTe and TpTe/QTc values were higher than the single drug administration groups (p<0.05). TpTe and TpTe/QT ratio was significantly higher in the RIS group compared to that of the MPH group. CONCLUSION:These results suggested that combined therapy of these drugs had a more prominent impact on the T wave and RIS could be strongly associated with it.
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
Karpuz D,Hallioglu O,Toros F,Tasdelen Bdoi
10.1016/j.jelectrocard.2017.02.012subject
Has Abstractpub_date
2017-01-01 00:00:00pages
410-415issue
4eissn
0022-0736issn
1532-8430pii
S0022-0736(17)30059-6journal_volume
50pub_type
杂志文章abstract：:An extremely rare case of intermittent ventricular parasystolic bigeminy is presented, in which coexisting reentrant ventricular extrasystoles of sinus origin, showing mainly trigeminy, and those of ventricular parasystolic origin, showing a close coupling to the ventricular parasystolic beat, are demonstrated. Such a...
journal_title：Journal of electrocardiology
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journal_title：Journal of electrocardiology
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更新日期：2012-11-01 00:00:00
abstract：:The utility of vectorcardiographic relative QRS loop area criteria in identifying significant hemodynamic abnormality (a mean pulmonary artery pressure greater than 25 mmHg and/or a pulmonary to systemic flow ratio greater than 1.5) in patients with cardiac lesions associated with selective right ventricular overload ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
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更新日期：1983-01-01 00:00:00
abstract：:The electrophysiologic actions of epinephrine (10(-9) M, 10(-8) M, and 10(-7) M) were evaluated in canine Purkinje fibers pretreated with the class III antiarrhythmic drugs clofilium (10(-7) M) or d,l-sotalol (10(-6) M). Clofilium and d,l-sotalol prolonged action potential duration at 50% and 90% of repolarization wit...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(97)80007-6
更新日期：1997-07-01 00:00:00
abstract：:Congenital long QT syndrome (LQTS) is known to be a critical syndrome associated with a bizarre T wave, prolonged QT interval, and ventricular arrhythmias and is followed by syncope and/or sudden death. Body surface mapping, especially QRST isointegral departure mapping, was used after exercise to assess exercise-indu...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2005.02.005
更新日期：2005-07-01 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
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：: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
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2019.06.010
更新日期：2019-01-01 00:00:00
abstract：AIMS:To study the effect of electrical neurostimulation on the ST segment shift in patients with ST elevation myocardial infarction (STEMI) with residual ST elevation after primary percutaneous coronary intervention (PCI). METHODS:After primary PCI, 38 patients with STEMI were divided into 2 groups. Group 1 received 1...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2007.05.014
更新日期：2007-11-01 00:00:00
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journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(86)80006-1
更新日期：1986-01-01 00:00:00
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journal_title：Journal of electrocardiology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0022-0736(96)80106-3
更新日期：1996-01-01 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
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2012.06.006
更新日期：2012-11-01 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：OBJECTIVE:We have previously used a 12-lead, signal-processed ECG to calculate blood potassium levels. We now assess the feasibility of doing so with a smartphone-enabled single lead, to permit remote monitoring. PATIENTS AND METHODS:Twenty-one hemodialysis patients held a smartphone equipped with inexpensive FDA-appr...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2017.06.008
更新日期：2017-01-01 00:00:00
abstract：:An interpolated premature ventricular contraction (PVC) may produce either complete block of the next sinus impulse or depression of A-V nodal conduction with a prolonged A-H interval. When a PVC results in partial depression of a A-V nodal conduction, the effect on subsequent premature atrial stimuli is unknown. The ...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(77)80025-3
更新日期：1977-01-01 00:00:00
abstract：:Inferior paraseptal accessory pathways (APs) have a wide distribution and prediction of AP location before radiofrequency ablation is very important in such pathways. We aimed to estimate successful ablation site based on electrocardiogram in 137 patients (mean age: 25.8±9.0; 126 males) with single manifest inferior p...
journal_title：Journal of electrocardiology
pub_type： 临床试验,杂志文章
doi：10.1016/j.jelectrocard.2015.12.017
更新日期：2016-03-01 00:00:00
abstract：:This contribution discusses the dominant T wave, a concept providing an overall view on the repolarization currents of the ventricular myocardium. The dominant T wave is a weighted mean of the T waves on the body surface. It can be estimated from the matrix of sampled observed potentials. The timing of its peak reveal...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2004.08.056
更新日期：2004-01-01 00:00:00
abstract：:A 66-year-old woman with a long history of hypertension had an electrocardiogram with giant negative U waves in left precordial leads despite hypokalemia. This seems to be the first report of giant negative U waves induced by uncontrolled hypertension with hypokalemia. The occurrence of negative U waves in the presenc...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(92)90121-f
更新日期：1992-04-01 00:00:00
abstract：:The purpose of this study was to describe the effects of gender and age on heart rate variability (HRV) in healthy volunteers (n = 111; 40 men and 71 women) and in persons after sudden cardiac arrest (SCA) (n = 95; 79 men and 16 women). Frequency-domain measurements and six time-domain measurements of HRV (SDANN, 24-h...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(94)80037-5
更新日期：1994-01-01 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
pub_type： 杂志文章
doi：10.1016/s0022-0736(88)80013-x
更新日期：1988-04-01 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：: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：BACKGROUND:In STEMI, grade-3 ischemia (G3) on admission ECG predicts larger infarct size (IS) than grade-2 (G2). We evaluated whether pre-hospital G3 and its temporal behavior are associated with IS and salvage after pPCI. METHODS:In 401 STEMI patients, pre-hospital and pre-PCI ECGs were classified as G3 or G2. IS was...
journal_title：Journal of electrocardiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jelectrocard.2014.04.012
更新日期：2014-07-01 00:00:00
abstract：:Signal-averaged electrocardiogram (ECG) variables were analyzed in 81 patients with ventricular tachyarrhythmia and nonischemic heart disease using the ART LVP 101 EPX system (Austin, TX): 15 ventricular tachycardia patients with arrhythmogenic right ventricular dysplasia (ARVD), 7 ventricular tachycardia patients wit...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/s0022-0736(94)80091-x
更新日期：1994-01-01 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
pub_type： 杂志文章
doi：10.1016/0022-0736(92)90030-4
更新日期：1992-10-01 00:00:00
abstract：:An asymptomatic 19-year-old top-level athlete had electrocardiographic evidence of intermittent cardiac preexcitation and intermittent left bundle branch block. The electrophysiologic study demonstrated the presence of a direct accessory pathway and enhanced atrioventricular node conduction that resulted in infrahisia...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/0022-0736(91)90083-x
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:The aim of our study was to investigate the value of the transtelephonic electrocardiogram (TTECG) monitoring system during a "blanking period" of 3 months after ablation by analyzing the frequency of atrial arrhythmias episodes and the relationship between the frequency of atrial fibrillation (AF) attacks an...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2010.06.007
更新日期：2010-11-01 00:00:00
abstract：BACKGROUND:We assessed the specificity of wide QRS complex tachycardia (WCT) differentiating algorithms in patients with preexistent left bundle branch block (LBBB) and heart failure. METHODS:Three hundred fourteen patients with resynchronization devices were retrospectively screened. electrocardiograms with supravent...
journal_title：Journal of electrocardiology
pub_type： 临床试验,杂志文章
doi：10.1016/j.jelectrocard.2011.08.012
更新日期：2012-05-01 00:00:00
abstract：AIM:The aim of this study was to investigate whether interventricular asynchrony (IVA) can be measured by electrocardiography. METHODS:Sixty-two patients (New York Heart Association heart failure functional class III: age, mean +/- SD: 64 +/- 9 years; ejection fraction, mean +/- SD: 24% +/- 8%; dilative cardiomyopathy...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2009.12.006
更新日期：2010-05-01 00:00:00
abstract：:Precise recording of the standard 12-lead electrocardiogram (ECG) is technically time consuming. Placing limb leads on the torso has the major advantages of ease of use, increased speed of application, and decreased artifact. This modified ECG frequently substitutes for the standard 12-lead ECG in intensive care units...
journal_title：Journal of electrocardiology
pub_type： 杂志文章
doi：10.1016/j.jelectrocard.2007.11.004
更新日期：2008-05-01 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
