Gene therapy approaches to ventricular tachyarrhythmias.

abstract：:We present an example of sudden modification in QRS morphology during ventricular pacing inside a scar-related isthmus. This is explained by a "concealed" sudden block in both the orthodromic and antidromic wavefront directions, allowing then the activation to proceed through a now overt antidromic conduction. ...

journal_title：Journal of electrocardiology

authors： Maury P,Rollin A,Sellal JM,Duparc A,Mondoly P,Cardin C,De Chillou C

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND:Ventricular arrhythmias and sudden cardiac deaths are the most common cause of mortality in patients with end-stage renal disease (ESRD). Index of cardiac-electrophysiological balance (iCEB) (QT/QRS) may predict malignant ventricular arrhythmias. In this study, we investigated whether iCEB value is increased...

journal_title：Journal of electrocardiology

authors： Sivri S,Çelik M

更新日期：2019-01-01 00:00:00

abstract：:Vagally mediated paroxysmal atrial fibrillation is typically described to occur in otherwise healthy young-to-middle aged males during periods of high vagal tone. We report a case of cardioinhibitory type neurocardiogenic syncope associated with atrial fibrillation in an elderly female during episodes of nausea. This ...

journal_title：Journal of electrocardiology

authors： Sriram CS,Naccarelli GV,Luck JC

更新日期：2014-09-01 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：: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：:Under hypoxic (95% N2 + 5% CO2) perfusion, electrophysiological effects of L-carnitine on canine papillary muscles were studied using standard microelectrode techniques. During hypoxic perfusion for 60 min, resting membrane potential (RMP), action potential amplitude (APA) and maximum upstroke velocity of phase 0 were...

journal_title：Journal of electrocardiology

authors： Hayashi H,Suzuki Y,Abe M,Nishihara K,Masumura Y,Kamikawa T,Kobayashi A,Yamazaki N

更新日期：1984-01-01 00:00:00

abstract：:A patient with acute extensive anterior and old inferior wall myocardial infarction developed left anterior hemiblock, resulting in loss of the electrocardiographic evidence of infarction. While the vectorcardiogram has generally been found useful in diagnosing coexistent hemiblock and inferior myocardial infarction, ...

journal_title：Journal of electrocardiology

authors： Khair GZ,Tristani FE,Brooks HL

更新日期：1980-01-01 00:00:00

abstract：:Information from 24-hour monitoring with on-line vectorcardiography, starting immediately after admission, was compared with results from a predischarge exercise test 3-13 days after admission. A total of 169 patients with acute myocardial infarction and 73 patients with unstable angina pectoris were investigated. Pat...

journal_title：Journal of electrocardiology

authors： Lundin P,Jensen J,Rehnqvist N,Eriksson SV

更新日期：1995-10-01 00:00:00

abstract：:We measured action potential duration (APD) from the endocardium (Endo) and epicardium (Epi) of the left ventricular free wall in Japanese monkey hearts and found that the APD of Endo is significantly longer than that of Epi at a stimulus cycle length of 1500 msec in normal Tyrode solution (control condition). We then...

journal_title：Journal of electrocardiology

authors： Imanishi S,Arita M

更新日期：1987-07-01 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

authors： Aihara N,Ohe T,Shimomura K

更新日期：1994-01-01 00:00:00

abstract：:We reported a case of Wolff-Parkinson-White syndrome with atrial double potential in coronary sinus (CS) electrograms during paroxysmal supraventricular tachycardia and ventricular pacing. The first component was low in frequency, and its timing was the same as atrial potential recorded by ablation catheter above the ...

journal_title：Journal of electrocardiology

authors： Zheng LR,Chen Y,Lian MJ,Wang LH,Zhu JH,Chen JZ,Tiao QM

更新日期：2007-09-01 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：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

authors： Liu J,Fang PH,Hou Y,Li XF,Liu Y,Wang YS,Zhang S

更新日期：2010-11-01 00:00:00

abstract：:Time course evolution of R, Q, T and ST components of the electrocardiogram during the first 12 hours of an acute myocardial infarction was studied. A comparison between anterior-extensive and anteroseptal wall infarctions (anterior group), and inferior-extensive and inferior wall infarction (inferior group) showed ap...

journal_title：Journal of electrocardiology

authors： Klainman E,Sclarovsky S,Lewin RF,Topaz O,Farbstein H,Pinchas A,Fohoriles L,Agmon J

更新日期：1987-04-01 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：:We have developed a computer program which simulates a paced cardiac rhythm strip, graphically generating the electrocardiogram (ECG) on a color monitor. Any pacemaker, programmed as desired, dynamically interacts with a preselected intrinsic rhythm. Utilizing symbols prevalent in the pacing industry, this graphics-or...

journal_title：Journal of electrocardiology

authors： Byrd CB,Byrd CL

更新日期：1987-10-01 00:00:00

abstract：:Brugada phenocopies are clinical entities characterized by electrocardiographic patterns that are identical to true Brugada syndrome, but are elicited by a number of clinical circumstances. ECG normalizes upon resolution of underlying condition, family history of arrhythmic syncope or ventricular arrhythmias is strict...

journal_title：Journal of electrocardiology

authors： Lippolis A,Buzzi MP,Romano IJ,Facchini C,Gentile F

更新日期：2019-01-01 00:00:00

abstract：:A 52-year-old woman exhibited Mobitz type II atrioventricular block with right bundle branch block and 1:1 atrioventricular conduction at or slower than 80 beats/min. Electrophysiologic study revealed transient HV interval block followed by recovery from the block at shorter coupling intervals without prolongation of ...

journal_title：Journal of electrocardiology

authors： Ayusawa M,Sakurada H,Hiyoshi Y,Sumitomo N,Okazaki H,Motomiya T,Sugiura M,Hiraoka M

更新日期：1998-01-01 00:00:00

abstract：:In 37 consecutive patients with acute myocardial infarction undergoing Streptokinase infusion and acute coronary angiography, the electrocardiographic findings were compared with the findings during angiography. All 15 patients with an occluded right coronary artery demonstrated an electrocardiographic pattern of an a...

journal_title：Journal of electrocardiology

authors： Niggemann B,Gann D

更新日期：1984-07-01 00:00:00

abstract：:Central venous catheters extending into intracardiac chambers can provoke premature atrial and ventricular complexes, which have been reported to initiate supraventricular tachyarrhythmias. These catheters are traditionally placed via the femoral, subclavian, or internal jugular veins. A new alternative to the convent...

journal_title：Journal of electrocardiology

authors： Verdino RJ,Pacifico DS,Tracy CM

更新日期：1996-01-01 00:00:00

abstract：:Using standard biopolar, temporary pacing catheters, thresholds were measured in four configurations: (1) bipolar (distal electrode negative, proximal electrode positive); (2) distal unipolar (distal electrode negative, right arm electrode positive); (3) proximal unipolar (proximal electrode negative, right arm electr...

journal_title：Journal of electrocardiology

authors： Preston TA

更新日期：1976-04-01 00:00:00

abstract：UNLABELLED:The increased QRS voltage is considered to be a specific electrocardiogram (ECG) sign of left ventricular hypertrophy (LVH), and it is expected that the QRS voltage reflects the increase in left ventricular mass (LVM). However, the increased QRS voltage is only one of QRS patterns observed in patients with L...

journal_title：Journal of electrocardiology

authors： Bacharova L,Szathmary V,Kovalcik M,Mateasik A

更新日期：2010-05-01 00:00:00

abstract：:A superficial accessory pathway was demonstrated by electrophysiologic techniques and surgical histopathology in 30-year-old male with Wolff-Parkinson-White syndrome, severe mitral valve disease and medically uncontrollable arrhythmias. In this patient, electrode catheter studies in the cardiac catheterization laborat...

journal_title：Journal of electrocardiology

authors： Untereker WJ,Litwak RS,Mindich BP,Wiemann G,Goldberg S,Gorlin R,Kupersmith J

更新日期：1980-10-01 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：:Initial electrical forces emanating from interventricular septal depolarization, being directed to the right and anteriorly, normally produce an initial negative deflection or Q wave in leads I, aVL and V6 and an initial positive deflection or R wave in leads V1 and V2. The observations of hypertrophied interventricul...

journal_title：Journal of electrocardiology

authors： Das G,Collins J,Weissler AM

更新日期：1981-01-01 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：:Effects of pirmenol hydrochloride and lidocaine hydrochloride on intraventricular conduction were examined in the infarcted heart of anesthetized dogs. The effects of the drugs on the excitation induced by ventricular stimulations were determined with coupling intervals between 150 and 1,000 ms. Effects of the drugs o...

journal_title：Journal of electrocardiology

authors： Hashimoto H,Ozaki T,Nagashima S,Nakashima M

更新日期：1991-10-01 00:00:00

abstract：:A 57-year-old man without prior history of organic heart disease was admitted with a diagnosis of unstable angina because of chest pain and new electrocardiographic (ECG) changes of global T wave inversion and QT interval prolongation. Left and right heart catheterization with coronary angiography, pulmonary angiograp...

journal_title：Journal of electrocardiology

authors： Lui CY

更新日期：1993-01-01 00:00:00

abstract：:The authors have proposed a new four-step screening algorithm to detect asymptomatic coronary artery disease (CAD) in flight school candidates, cadets, and rated flyers of the Unites States Air Force (USAF). In step 1, the USAF Armstrong Laboratory (USAF/AL) risk profile and improved 16-lead high-resolution electrocar...

journal_title：Journal of electrocardiology

authors： Selvester RH,Ahmed J,Tolan GD

更新日期：1996-01-01 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

authors： Zareba W,McNitt S,Polonsky S,Couderc JP

更新日期：2017-01-01 00:00:00