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Indian Pacing and Electrophysiology Journal

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https://www.readbyqxmd.com/read/29225010/initiation-and-outcomes-with-class-ic-antiarrhythmic-drug-therapy
#1
Xu Gao, Avirup Guha, Benjamin Buck, Dilesh Patel, Melissa J Snider, Michael Boyd, Muhammad Afzal, Auroa Badin, Hemant Godara, Zhenguo Liu, Jaret Tyler, Raul Weiss, Steven Kalbfleisch, John Hummel, Ralph Augostini, Mahmoud Houmsse, Emile G Daoud
BACKGROUND: Expert opinion recommends performing exercise testing with initiation of Class Ic antiarrhythmic medication. OBJECTIVE: To evaluate the rate and reason for discontinuation of Ic agent within the first year of follow up, with particular attention to rate of proarrhythmia and the value of routine treadmill testing. METHODS: This is a single center retrospective cohort study including consecutive patients with atrial arrhythmias who were initiated on a Class Ic agent from 2011 to 2016...
December 7, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29183714/interesting-response-of-narrow-qrs-tachycardia-to-premature-atrial-complex-what-is-the-mechanism
#2
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Hiren Kevadiya, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
No abstract text is available yet for this article.
November 25, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29183713/right-bundle-branch-block-pattern-after-uncomplicated-right-ventricular-outflow-tract-pacing-in-a-patient-with-a-left-sided-superior-vena-cava-and-corrected-tetralogy-of-fallot
#3
Anunay Gupta, Neeraj Parakh, Rajnish Juneja
Usually an electrocardiogram after right ventricular (RV) pacing should yield left bundle branch block (LBBB) pattern. However, the presence of right bundle branch block (RBBB) pattern after pacemaker implantation should alert the physician to a malposition of lead. We report a case of 18-year-old female who underwent dual chamber pacemaker implantation and had RBBB pattern post implantation. Detailed evaluation revealed an uncomplicated right ventricular outflow tract pacing. The possible causes of this abnormal pattern after an uncomplicated RV pacing are also reviewed...
November 25, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29183712/correlation-between-the-sudden-jump-like-increases-of-the-atrio-hisian-interval-induced-during-burst-atrial-pacing-and-during-programmed-atrial-stimulation-in-patients-with-atrioventricular-nodal-reentrant-tachycardia
#4
Iskra H Bayraktarova, Milko K Stoyanov, Boyan T Kunev, Tchavdar N Shalganov
PURPOSE: To study the correlation between the sudden prolongations of the atrio-Hisian (AH) interval with ≥50 ms during burst and programmed atrial stimulation, and to define whether the AH jump during burst atrial pacing is a reliable diagnostic criterion for dual AV nodal physiology. METHODS: Retrospective data on 304 patients with preliminary ECG diagnosis of AV nodal reentrant tachycardia (AVNRT), confirmed during electrophysiological study, was analyzed for the presence of AH jump during burst and programmed atrial stimulation, and for correlation between the pacing modes for inducing the jump...
November 25, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29155027/serum-level-of-transforming-growth-factor-beta-1-is-associated-with-left-atrial-voltage-in-patients-with-chronic-atrial-fibrillation
#5
Shilu Zhao, Mingfang Li, Weizhu Ju, Lingyun Gu, Fengxiang Zhang, Hongwu Chen, Kai Gu, Bing Yang, Minglong Chen
BACKGROUND: Atrial tissue fibrosis can cause electrical or structural remodeling in patients with atrial fibrillation. Transforming growth factor beta 1(TGF-β1) signaling acts as a central role in fibroblast activation. In this report, we aimed to investigate the relationship between serum level of TGF-β1 and mean left atrial voltage in patients with chronic atrial fibrillation (CAF). METHODS: A total of 16 consecutive adult patients with CAF who underwent catheter ablation were enrolled...
November 15, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29113751/cardiomyopathy-induced-by-incessant-ventricular-tachycardia-originating-in-the-vicinity-of-the-his-bundle
#6
Sana Ouali, Manel Ben Halima, Selim Boudiche, Anissa Gharbi, Khedher Nadim, Kaouthar Hakim, Fatma Ouarda, Mohamed Sami Mourali
A 04-year-old boy was referred to our institution with severe, progressive heart failure of 4-months duration associated with a persistent wide QRS tachycardia with left bundle branch block and severe left ventricular dysfunction. Because of incessant wide QRS tachycardia refractory to antiarrhythmic drugs, he was referred for electrophysiological study. The ECG was suggestive of VT arising from the right ventricle near the His area. Electrophysiological study revealed that origin of tachycardia was septum of the right ventricle, near His bundle, however the procedure was not successful and an inadvertent complete atrioventricular conduction block occurred...
November 4, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29113701/electrocardiographic-patterns-in-biventricular-pacing-delivered-by-second-generation-cardiac-resynchronization-devices
#7
Amirfarjam Fazelifar, Fatemeh Jorfi, Majid Haghjoo
BACKGROUND: With increasing use of cardiac resynchronization therapy (CRT), treating physicians should be familiar with different electrocardiographic (ECG) patterns of left ventricular (LV) lead and biventricular (BiV) pacing. However, there are a few publications on ECG patterns during BiV pacing. PURPOSE: This study was sought to determine different ECG patterns in patients with BiV pacing. METHODS: Twelve-lead ECGs during BiV pacing (right ventricular leads at apex and LV leads in one of the lateral coronary veins) were analyzed in 181 consecutive patients (121 male; mean age, 62...
November 4, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29102650/safety-and-feasibility-of-atrial-fibrillation-ablation-using-amigo-%C3%A2-system-versus-manual-approach-a-pilot-study
#8
Antonio Scarà, Luigi Sciarra, Ermenegildo De Ruvo, Alessio Borrelli, Domenico Grieco, Zefferino Palamà, Paolo Golia, Lucia De Luca, Marco Rebecchi, Leonardo Calò
BACKGROUND: The Amigo(®) Remote Catheter System is a relatively new robotic system for catheter navigation. This study compared feasibility and safety using Amigo (RCM) versus manual catheter manipulation (MCM) to treat paroxysmal atrial fibrillation (PAF). Contact force (CF) and force-time integral (FTI) values obtained during pulmonary vein isolation (PVI) ablation were compared. METHODS: Forty patients were randomly selected for either RCM (20) or MCM (20). All were studied with the Thermocool(®) SmartTouch(®) force-sensing catheter (STc)...
November 1, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29101013/the-congenital-long-qt-syndrome-type-3-an-update
#9
REVIEW
Andrés Ricardo Pérez-Riera, Raimundo Barbosa-Barros, Rodrigo Daminello Raimundo, Marianne Penachini da Costa de Rezende Barbosa, Isabel Cristina Esposito Sorpreso, Luiz Carlos de Abreu
Congenital long QT syndrome type 3 (LQT3) is the third in frequency compared to the 15 forms known currently of congenital long QT syndrome (LQTS). Cardiac events are less frequent in LQT3 when compared with LQT1 and LQT2, but more likely to be lethal; the likelihood of dying during a cardiac event is 20% in families with an LQT3 mutation and 4% with either an LQT1 or an LQT2 mutation. LQT3 is consequence of mutation of gene SCN5A which codes for the Nav1.5 Na(+) channel α-subunit and electrocardiographically characterized by a tendency to bradycardia related to age, prolonged QT/QTc interval (mean QTc value 478 ± 52 ms), accentuated QT dispersion consequence of prolonged ST segment, late onset of T wave and frequent prominent U wave because of longer repolarization of the M cell across left ventricular wall...
October 31, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29097314/image-integration-guided-ablation-of-left-outflow-tract-ventricular-tachycardia-is-coronary-angiography-still-necessary
#10
Francesco De Sensi, Gennaro Miracapillo, Alberto Cresti, Francesco Paneni, Ugo Limbruno
No abstract text is available yet for this article.
October 30, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29110935/successful-percutaneous-retrieval-of-a-leadless-pacemaker-due-to-an-acute-rise-in-pacing-threshold
#11
Ngai-Yin Chan, Ho-Chuen Yuen, Ngai-Shing Mok
Leadless cardiac pacemakers (LCP) have become available recently. Both its acute and long-term performance in a large population of patients remain to be tested. Subacute rise in pacing threshold has been reported as an uncommon complication. On the other hand, the retrieval technique for LCP with passive fixation mechanism has not been previously described in details. Herein we report a newly recognized complication of an acute rise in pacing threshold very soon after implantation of an LCP without radiographic dislodgement...
October 28, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29107755/interaction-between-shock-coils-increased-the-incidence-of-inappropriate-therapies-and-lead-failure-in-implantable-cardioverter-defibrillator
#12
Mohammad El Garhy, Marc-Alexander Ohlow, Bernward Lauer
AIMS: Shock coil interaction in patients with multiple implantable cardioverter defibrillator (ICD) leads is occasionally observed. We aimed to evaluate the incidence of shock coil interaction and its clinical relevance. METHODS AND RESULTS: All ICD patients (646 patients) who came to follow up control in our ICD ambulance between January 1, 2011, and December 31, 2011 in the department of cardiology in Bad Berka hospital were retrospectively evaluated in this study...
October 28, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29107175/entrapment-of-focal-atrial-tachycardia-using-cryoballoon-ablation-sinus-rhythm-in-the-left-atrium-and-ongoing-atrial-tachycardia-in-the-left-atrial-appendage
#13
Hikmet Yorgun, Uğur Canpolat, Banu Evranos, Kudret Aytemir
Left atrial appendage (LAA) is a well-known source of focal atrial tachycardias (AT). Although radio-frequency (RF) energy is the most commonly used technique in such cases, there was an option other than epicardial approach when RF technique fails. Cryoballoon technology is primarily developed to be used for pulmonary vein isolation (PVI). Also, there was no report regarding the isolation of LAA by using cryo-balloon in patients with focal AT. In this case, for the first time in the literature, we successfully isolated the LAA because of failed attempts of RF ablation for focal AT in whom the surface electrogram showed a sinus rhythm while arrhythmia continues inside the LAA...
October 28, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29111169/non-arrhythmic-pre-excitation-induced-cardiomyopathy
#14
Mehrdad Golian, Paul Angaran, Iqwal Mangat
No abstract text is available yet for this article.
October 27, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29111168/standardized-programming-to-reduce-the-burden-of-inappropriate-therapies-in-implantable-cardioverter-defibrillators-single-centre-follow-up-results
#15
U Boles, E Gul, L Fitzgerald, F Sadiq Ali, Christine Nolan, K Aldworth-Gaumond, D R Redfearn, A Baranchuk, B Glover, C Simpson, H Abdollah, K A Michael
BACKGROUND: Current algorithms and device morphology templates have been proposed in current Implantable Cardioverter-Defibrillators (ICDs) to minimize inappropriate therapies (ITS), but this has not been completely successful. AIM: Assess the impact of a deliberate strategy of using an atrial lead implant with standardized parameters; based on all current ICD discriminators and technologies, on the burden of ITS. METHOD: A retrospective single-centre analysis of 250 patients with either dual chamber (DR) ICDs or biventricular ICDs (CRTDs) over a (41...
October 27, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29110936/right-versus-left-apical-transvenous-pacing-for-bradycardia-results-of-the-rivela-randomized-study
#16
Haran Burri, Hajo Müller, Richard Kobza, Christian Sticherling, Peter Ammann, Heiko Zerlik, Carine Stettler, Catherine Klersy, Frits Prinzen, Angelo Auricchio
AIMS: To compare cardiac function when pacing from the right or left ventricular apex in patients with preserved left ventricular systolic function, at 1-year follow-up. METHODS: Prospective, multicentre centre randomizing conventional right ventricular apical (RVA) versus left ventricular apical (LVA) pacing using a coronary sinus lead in patients requiring ventricular pacing for bradycardia. Follow-up was performed using 3D-echocardiography at 6 and 12 months...
October 27, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29231823/a-deadly-mix-rheumatic-mitral-stenosis-preexcited-atrial-fibrillation-left-atrial-appendage-thrombus-and-left-atrial-appendage-accessory-pathway
#17
Kabilan S Jagadheesan, Sasinthar Rangasamy, Raja J Selvaraj
No abstract text is available yet for this article.
November 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29231822/zero-fluoroscopy-radiofrequency-ablation-for-typical-atrioventricular-nodal-reentrant-tachycardia-avnrt
#18
Anandaroop Lahiri, Sirish Chandra Srinath, David Chase, John Roshan
No abstract text is available yet for this article.
November 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29231821/familial-atrioventricular-nodal-re-entrant-tachycardia-a-case-seriers-and-a-systematic-review
#19
Muthiah Subramanian, M S Harikrishnan, Mukund A Prabhu, Praveen G Pai, Saritha S Shekhar, Kumaraswamy Natarajan
Multiple reports of familial clustering suggest that genetic factors may contribute in the pathogenesis of atrioventricular nodal re-entrant tachycardia (AVNRT). We report three cases of AVNRT in a father and his two sons along with a review of literature of other similar cases. Electrophysiological studies induced typical AVNRT, which was successfully eliminated by radiofrequency ablation in all of them. Of the 22 reported cases, 96% had typical (slow-fast) variant of AVNRT. The predominant pattern of inheritance appears to be autosomal dominant, though other patterns may exist...
November 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29231820/higher-defibrillation-threshold-in-methamphetamine-cardiomyopathy-patients-with-implantable-cardioverter-defibrillator
#20
Rakesh Malhotra, Shyam Patel, Tekchand Ramchand, Omar Al Nimri
INTRODUCTION: Identification of patients with an increased risk of high defibrillation thresholds (DFTs) is important in planning implantable cardioverter-defibrillator (ICD) procedures. Clinical observations have suggested that patients with methamphetamine cardiomyopathy (MACMP) have significantly elevated defibrillation thresholds. We hypothesized that MACMP patients would have higher DFT thresholds than controls and would require procedural changes during ICD implantation to accommodate higher thresholds...
November 2017: Indian Pacing and Electrophysiology Journal
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