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Indian Pacing and Electrophysiology Journal

Jem D Lane, Sarah Whittaker-Axon, Richard J Schilling, Martin D Lowe
BACKGROUND: Implantable cardioverter-defibrillator (ICD) lead parameters may deteriorate due to right ventricular (RV) disease such as arrhythmogenic right ventricular cardiomyopathy (ARVC), with implications for safe delivery of therapies. We compared ICD and CRT-D (cardiac resynchronisation therapy-defibrillator) lead parameters in patients with ARVC and dilated cardiomyopathy (DCM). METHODS: RV lead sensing (R wave amplitude) and pacing (threshold and amplitude-pulse width product (APWP)), left ventricular (LV) pacing (APWP), and imaging parameter trends were assessed in 18 patients with ARVC and 18 with DCM...
August 23, 2018: Indian Pacing and Electrophysiology Journal
Anunay Gupta, Neeraj Parakh, Raghav Bansal, Sunil K Verma, Ambuj Roy, Gautam Sharma, Rakesh Yadav, Nitish Naik, Rajnish Juenja, Vinay K Bahl
BACKGROUND: Pacing from RV mid septum and outflow tract septum has been proposed as a more physiological site of pacing and narrower paced QRS complex duration. The paced QRS morphology and duration in different RV pacing sites is under continued discussion. Hence, this study was designed to address the correlation of pacing sites in right ventricle with paced QRS complex duration. METHODS: Two hundred fifty-two consecutive patients who underwent pacemaker implantation were enrolled...
August 17, 2018: Indian Pacing and Electrophysiology Journal
Kenichi Sasaki, Sakura Tateishi, Chiharu Sawada
We report the case of an 84-year-old female with symptomatic bradycardia due to a complete atrioventricular block, who carried absent right and persistent left superior vena cava (SVC). Implantation of a pacing lead, particularly within the right ventricle (RV) in a patient with this venous anomaly is accompanied by technical difficulties. However, the apparatus consisting of a fixed-curve sheath (Model C315-S10, Medtronic, Inc., Minneapolis, MN, USA) and a lumenless fixed-screw pacing lead (Model 3830, Medtronic), allowed a rapid delivery into the RV without any complications...
August 16, 2018: Indian Pacing and Electrophysiology Journal
Yanting Wang, Michael S Sharbaugh, Andrew D Althouse, Suresh Mulukutla, Samir Saba
INTRODUCTION: With the recent publication of the negative DANISH trial, the mortality benefit of the implantable cardioverter-defibrillator (ICD) has been put in question in patients with non-ischemic cardiomyopathy (NICM). Because a majority of patients in DANISH receive cardiac resynchronization therapy (CRT) devices, we investigated in the present study the survival of recipients of CRT pacemakers (CRT-P) versus CRT ICDs (CRT-D) in a cohort of older (≥75 years) NICM patients at our institution...
August 16, 2018: Indian Pacing and Electrophysiology Journal
Jonathan M Behar, Emily Keating, Martin Lowe
No abstract text is available yet for this article.
July 25, 2018: Indian Pacing and Electrophysiology Journal
Jason Tri, Roshini Asirvatham, Christopher V DeSimone, Ammar M Killu, Alan M Sugrue, Scott H Suddendorf, Dorothy J Ladewig, Suraj Kapa, Paul A Friedman, Christopher J McLeod, Samuel J Asirvatham
INTRODUCTION: The His-Purkinje system has been shown to harbor triggers for ventricular fibrillation (VF) initiation. However, the substrate responsible for VF maintenance remains elusive. We hypothesized that standard, electrode-based, point-to-point mapping would yield meaningful insight into site-specific patterns and organization which may shed light on the critical substrate for maintenance of VF. METHODS: VF was induced under general anesthesia by direct current (DC) application to the right ventricle in 7 acute canines...
July 20, 2018: Indian Pacing and Electrophysiology Journal
Ankavipar Saprungruang, Apichai Khongphatthanayothin, John Mauleekoonphairoj, Pharawee Wandee, Supaluck Kanjanauthai, Zahurul A Bhuiyan, Arthur A M Wilde, Yong Poovorawan
BACKGROUND: Congenital long QT syndrome (LQTS) is an inheritable arrhythmic disorder which is linked to at least 17 genes. The clinical characteristics and genetic mutations may be variable among different population groups and they have not yet been studied in Thai population. METHODS: Clinical characteristics were retrospectively reviewed from children and young adults with congenital long QT syndrome whose blood samples were sent for genotyping during 1998-2017...
July 20, 2018: Indian Pacing and Electrophysiology Journal
Pramod N Pawar, Raja J Selvaraj
No abstract text is available yet for this article.
July 20, 2018: Indian Pacing and Electrophysiology Journal
Daniel Apel, Michele Brunelli, Mohammed El-Gahry, J Christoph Geller, Bernward Lauer, Marc-Alexander Ohlow
AIMS: The aim of this study was to analyze whether local application of 3% hydrogen peroxide (H2O2) additionally to standard antibiotic prophylaxis following implantation of cardiac implantable electronic devices (CIED) reduces the incidence of pocket infections (PI). METHODS: In this observational case-control study every patient from the group additionally treated with H2O2 was matched with two patients out of the control group for age, male-gender, body-mass-index and operation time...
July 20, 2018: Indian Pacing and Electrophysiology Journal
Deep Chandh Raja, Sabari Saravanan, Anitha G Sathishkumar, Ulhas M Pandurangi
We present a rare case of tachycardiomyopathy in a 4-year-old girl. The child had incessant atrial tachycardia (AT) and refractory heart failure. Right atrial appendage (RAA) was localised as the source of the ectopic tachycardia. The child underwent successful radiofrequency ablation (RFA) using 3-D electroanatomical mapping. Fluroscopy was used sparingly only to rule out underlying anomalies. The left ventricular functions returned to normal by one month after the procedure. RAA AT is rare in very young children and usually necessitates surgical appendectomies...
July 4, 2018: Indian Pacing and Electrophysiology Journal
Sen Matsumoto, Yasuharu Matsunaga-Lee, Nobutaka Masunaga, Yuzuru Takano
A 69-year-old woman with palpitations was referred to our hospital for a second session of atrial fibrillation (AF) catheter ablation. She had a history of AF ablation including pulmonary vein (PV) isolation and persistent left superior vena cava (PLSVC) isolation. Electrophysiologic studies showed the veno-atrial connections that had recovered. After PV isolation was performed, AF was induced by atrial premature contraction (APC) from the PLSVC, and AF storm occurred. During PLSVC isolation, AF was not induced by APC from the PLSVC...
July 2018: Indian Pacing and Electrophysiology Journal
Takatsugu Kajiyama, Marehiko Ueda, Masayuki Ishimura, Naotaka Hashiguchi, Masahiro Nakano, Yusuke Kondo, Yoshio Kobayashi
The cutdown technique for the cephalic vein is a common access route for transvenous cardiac device leads (TVLs), and sometimes one cephalic vein can accomodate two TVLs. We examined a novel ligation technique to balance the hemostasis and lead maneuverability for this two-in-one insertion. A total of 22 patients scheduled for cardiac device implantations with two or more leads were enrolled. The ipsilateral cephalic vein was identified for inserting the TVLs with a cutdown. If two TVLs could be introduced into one cephalic vein, hemostasis was established by ligating the venous wall between the TVLs...
July 2018: Indian Pacing and Electrophysiology Journal
Belén Alvarez-Alvarez, Javier García-Seara, Moisés Rodríguez-Mañero, Diego Iglesias-Alvarez, Jose L Martínez-Sande, Rosa M Agra-Bermejo, Xesús A Fernández López, Laila González-Melchor, Francisco Gude Sampedro, Carla Díaz-Louzao, José R González-Juanatey
BACKGROUND: Cardiac resynchronization therapy (CRT) is indicated in symptomatic heart failure (HF) patients after achieving optimal medical therapy. However, there are still a large percentage of patients who do not respond to CRT. Malnutrition is a frequent comorbidity in patients with HF, and it is associated with a poorer prognosis. Here, we evaluate the nutritional status of patients assessed by Controlling Nutritional Status (CONUT) score and its association with structural remodeling and cardiovascular events...
July 2018: Indian Pacing and Electrophysiology Journal
Christian Sticherling, Dirk Müller, Beat A Schaer, Silke Krüger, Christof Kolb
Many patients receiving cardiac resynchronization therapy (CRT) suffer from permanent atrial fibrillation (AF). Knowledge of the atrial rhythm is important to direct pharmacological or interventional treatment as well as maintaining AV-synchronous biventricular pacing if sinus rhythm can be restored. A single pass single-coil defibrillator lead with a floating atrial bipole has been shown to obtain reliable information about the atrial rhythm but has never been employed in a CRT-system. The purpose of this study was to assess the feasibility of implanting a single coil right ventricular ICD lead with a floating atrial bipole and the signal quality of atrial electrograms (AEGM) in CRT-defibrillator recipients with permanent AF...
July 2018: Indian Pacing and Electrophysiology Journal
Kyoichiro Yazaki, Masahiro Watarai, Mitsuru Kahata, Asako Kumagai, Koji Inoue, Hiroshi Koganei, Kenji Enta, Masato Otsuka, Yasuhiro Ishii
A 67-year old male with a dual-chamber pacemaker visited for a regular check-up. An unfamiliar message emerged on the display just after placing the programmer wand. We could recognize that the pacemaker had already been in the safe back-up mode of DDI, and the programmer prompted a re-initialization request. We are so surprised because there was no indication of device malfunction the day before in daily monitoring and a 12-lead electrocardiogram revealed normally working in the DDD mode just before checking the device...
July 2018: Indian Pacing and Electrophysiology Journal
Jaywant M Nawale, Sandip N Patil, Digvijay D Nalawade, Nikhil A Borikar, Bhushan S Sonawane, Ajay S Chaurasia
Implantation of temporary pacemaker lead is commonly performed procedure and is usually safe, but can sometimes develop rare and serious complication like intracardiac lead knotting which may require challenging retrieval techniques. We report a case of successful percutaneous retrieval of unusually knotted right internal jugular venous temporary pacing lead via left femoral transvenous approach using snare over a long sheath after cutting the electrode proximally and thus avoiding any surgical intervention...
July 2018: Indian Pacing and Electrophysiology Journal
Luigi Sciarra, Saverio Iacopino, Zefferino Palamà, Ermenegildo De Ruvo, Pasquale Filannino, Alessio Borrelli, Paolo Artale, Alberto Caragliano, Antonio Scarà, Paolo Golia, Lucia De Luca, Domenico Grieco, Marco Rebecchi, Stefano Favale, Leonardo Calò
BACKGROUND: Third-generation cryoballoon (CB3) is characterized by a 40% shorter distal tip designed to increase the rate of pulmonary veins real-time signal recording in order to measure time necessary to isolate veins, the "Time to effect" (TTE). Few data are currently available on clinical follow up of CB3 treated patients. METHODS: Sixtyeight consecutive patients (mean age 57.8 ± 9.6 years, 48 male) with paroxysmal or persistent atrial fibrillation (AF) were enrolled...
July 2018: Indian Pacing and Electrophysiology Journal
Taihei Itoh, Takumi Yamada
A 44-year-old man with a history of ventricular preexcitation and supraventricular tachycardia was evaluated. The baseline electrocardiogram exhibited ventricular preexcitation with a normal PR interval and a minimally negative delta wave in lead V1 and positive delta waves in the inferior leads. The administration of adenosine resulted in a progressive prolongation of the PR interval with a fixed preexcitation degree, suggesting the presence of antegrade conduction over the fasciculo-ventricular pathway. When complete right bundle branch block occurred, the degree of preexcitation never changed...
July 2018: Indian Pacing and Electrophysiology Journal
Swee Leng Kui, Chee Yang Chin, Chi Keong Ching
No abstract text is available yet for this article.
May 26, 2018: Indian Pacing and Electrophysiology Journal
Junji Morita, Masato Fukunaga, Kenichi Hiroshima, Michio Nagashima, Mizuki Miura, Kenji Ando
We report the case of a 74-year-old man with a previously implanted pacemaker lead. He had undergone Medtronic™ Micra Transcatheter Pacing System (TPS, Medtronic plc, MN, USA) implantation because of lead fracture. We implanted a new TPS and retrieved the dislodged one. We used a multiple-loop snare (EN snare® ) and an 8.5F steerable sheath (Agilis NXT; St. Jude Medical, St Paul, MN, USA). The TPS was obstructed by the chordae tendineae of the tricuspid valve and the pacemaker lead. We pushed the TPS to the apex site; this enabled us to move the TPS away from the chordae tendineae and pacemaker lead...
May 25, 2018: Indian Pacing and Electrophysiology Journal
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