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Indian Pacing and Electrophysiology Journal

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https://www.readbyqxmd.com/read/27789001/trade-off-between-elimination-of-premature-ventricular-complexes-and-loss-of-synchronized-left-ventricular-pacing-improved-cardiac-function-in-a-patient-with-heart-failure
#1
Hideyuki Hasebe, Masataka Iida, Naoki Hatano, Toshiro Muramatsu
Synchronized left ventricular pacing (sLVP) via adaptive cardiac resynchronization therapy (aCRT) algorithm might enhance the efficacy of CRT. A 71-year-old female was admitted with the diagnosis of heart failure. Electrocardiograms revealed left bundle branch block with QRS width of 144 ms, and frequent premature ventricular complexes (PVCs). A CRT device was implanted, and sLVP via a CRT algorithm was provided. Frequent PVCs arising from the His-bundle suppressed effective sLVP percentage. Radiofrequency application at the His-bundle successfully eliminated the PVCs, but induced complete atrioventricular (AV) block, leading to loss of sLVP...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27789000/sinus-node-injury-during-adjunctive-superior-vena-cava-isolation-in-a-patient-with-triggered-atrial-fibrillation
#2
Andrés F Miranda-Arboleda, Jeffrey Munro, Komandoor Srivathsan
INTRODUCTION: Atrial fibrillation is the most common sustained heart arrhythmia. Premature beats arising from foci other than pulmonary veins have been related to its pathogenesis. METHODS AND RESULTS: A 64-year-old female underwent superior vena cava (SVC) isolation after triggers were identified originating from the SVC following pulmonary vein isolation; immediately after SVC isolation, she developed junctional rhythm with symptomatic hypotension requiring emergent management...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788999/ecg-monitoring-leads-and-special-leads
#3
REVIEW
Johnson Francis
ECG monitoring is common place in the hospital and even pre-hospital setting. The need for different types of lead systems in different settings has been emphasised. Simple three electrode bipolar recording is ubiquitous for monitoring. This can be used to record modified bipolar chest leads as well. Using five leads gives the option of getting a chest lead in addition to bipolar limb leads, enhancing detection of ischemia during procedures. Lead stability is important when the movement of the subject is maximum as in exercise testing...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788998/10-year-follow-up-after-radiofrequency-ablation-of-idiopathic-ventricular-arrhythmias-from-right-ventricular-outflow-tract
#4
Synne Dragesund Rørvik, Jian Chen, Per Ivar Hoff, Eivind Solheim, Peter Schuster
BACKGROUND: The aim of this study was to examine the effect of radiofrequency ablation (RFA) of ventricular arrhythmias from right ventricular outflow tract (RVOT) during long-term follow-up. METHODS: A follow-up analysis was conducted using an in-house questionnaire, as well as a qualitative assessment of the patients' medical records. The study population of 34 patients had a previous diagnosis of idiopathic VT or frequent PVCs from the RVOT, and received RFA treatment between 2002 and 2005...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788997/use-of-the-new-contact-force-sensing-ablation-catheter-dramatically-reduces-fluoroscopy-time-during-atrial-fibrillation-ablation-procedures
#5
Aditi Naniwadekar, Kamal Joshi, Allan Greenspan, Sumeet Mainigi
OBJECTIVES: To study the impact of contact force (CF) sensing on fluoroscopy, procedure, left atrial (LA) and ablation times and number of ablations during atrial fibrillation (AF) ablation. BACKGROUND: Catheter ablation is an effective treatment for symptomatic AF. Recently a new ablation catheter providing real-time CF has been approved for use. METHODS: A nested case-control study was performed comparing radiofrequency ablation of AF using the irrigated CF-sensing ThermoCool SmartTouch catheter versus open-irrigated ThermoCool SF catheter (Biosense Webster, Inc...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788996/unexpectedly-short-postpacing-interval-in-a-left-free-wall-accessory-pathway-mediated-tachycardia-a-pitfall-of-the-corrected-postpacing-interval-algorithm
#6
Jefferson Salas, Jesús Almendral, Eduardo Castellanos, Rafael Peinado, Mercedes Ortiz
No abstract text is available yet for this article.
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788995/persistent-fever-after-pacemaker-lead-extraction
#7
Maria Carmo Pereira Nunes, Túlio Pinho Navarro, Mariana de Braga Lima Carvalho, Nicole de Paula Aarão Faleiro Maia, Ricardo Jayme Procópio, Teresa Cristina Abreu Ferrari
The implant indication of cardiac electronic devices continues to expand; therefore, we have observed increasing complications related to their removal. We describe the case of a patient who presented with prolonged bloodstream infection after having undergone removal of a pacemaker. After extensive workup for fever of unknown origin and antibiotic therapy without any improvement, it was possible to demonstrate a foreign body in the right subclavian vein and superior vena cava corresponding to the distal part of the right ventricular lead...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788994/incessant-left-ventricular-tachycardia-of-unusual-etiology
#8
Praloy Chakraborty, H S Isser, Sudheer Arava, Kausik Mandal
Apart from Coronary artery disease, left ventricular tachycardia may result from cardiac sarcoidosis, left ventricular tumor, chagas disease and idiopathic left ventricular tachycardia. We report a rare case of incessant left ventricular tachycardia resulting from left dominant arrhythmogenic cardiomyopathy.
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27788993/av-nodal-ablation-in-tricuspid-atresia-anatomical-challenges
#9
Jeffrey Munro, Krishnaswamy Chandrasekaran, Komandoor Srivathsan
Patients with congenital heart disease often present unique challenges, especially in the electrophysiology laboratory. Here we present a case of a patient with medically refractory symptomatic atrial tachycardia, tricuspid atresia and a history of a modified Fontan procedure. The approach of an AV node ablation for palliation in our patient was met with challenges in identification of a His-bundle recording and successful ablation after identification of the His-bundle recording from a left sided approach...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676167/leadless-cardiac-pacing
#10
Arun Gopi
No abstract text is available yet for this article.
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676166/atrial-flutter-with-atypical-presentation
#11
Vikas Kataria, Amitabh Yaduvanshi, Mohan Nair
No abstract text is available yet for this article.
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676165/transhepatic-permanent-pacing-in-a-child-with-complex-cyanotic-heart-disease-after-total-cavo-pulmonary-shunt-kawashima-repair
#12
Anilkumar Singhi, Ejaz Ahmed Sheriff, Kothandam Sivakumar
Complex cyanotic congenital heart diseases with left isomerism are sometimes associated with atrioventricular nodal conduction disturbances that may need permanent pacing. Surgical palliation in such anatomy connecting the superior vena cava to the pulmonary artery precludes a transvenous access for an endocardial pacing lead to the ventricles. Epicardial leads in these patients fail if the pacing thresholds are very high. We report transhepatic permanent ventricular lead implantation for a young boy with heterotaxy complicated by complete heart block...
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676164/implantation-of-single-lead-cardioverter-defibrillator-with-floating-atrial-sensing-dipole-in-a-pregnant-patient-without-using-fluoroscopy
#13
Fabio Quartieri, Daniele Giacopelli, Matteo Iori, Nicola Bottoni
In this case report, we look into the implant procedure of a single-lead ICD with floating atrial sensing dipole in a pregnant woman, without using fluoroscopy. This system benefits the proper positioning of the lead. This is possible thanks to the simultaneous display of both the atrial and ventricular dipoles on the electro-anatomical mapping system. This technique may be taken into consideration for the few rare cases where fluoroscopy is absolutely contraindicated.
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676163/sudden-cardiac-arrest-due-to-a-single-sodium-channel-mutation-producing-a-mixed-phenotype-of-brugada-and-long-qt3-syndromes
#14
U Lakshmanadoss, A Mertens, M Gallagher, I Kutinsky, B Williamson
Inherited arrhythmia syndromes are a known, albeit rare, cause of sudden cardiac arrest which may present with characteristic electrocardiogram changes in patients with structurally normal heart. There are a variety of distinct arrhythmogenic syndromes that arise from mutations in voltage gated sodium channels, resulting in either gain or loss of function. We describe a patient with a primary inherited arrhythmia syndrome which presented as sudden cardiac arrest. Further workup revealed that her arrest was due to a combination of Brugada syndrome and Long QT3 syndrome secondary to a deleterious mutation of voltage-gated, sodium channel, type V alpha subunit (SCN5A Thr1709Met)...
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676162/comparison-between-iegm-based-approach-and-echocardiography-in-av-pv-and-vv-delay-optimization-in-crt-d-recipients-quicksept-study
#15
REVIEW
Massimo Giammaria, Gianluca Quirino, Enrico Cecchi, Gaetano Senatore, Paolo Pistelli, Mario Bocchiardo, Roberto Mureddu, Paolo Diotallevi, Eraldo Occhetta, Andrea Magnani, Mauro Bensoni, Catia Checchinato, Valentina Conti, Sandra Badolati, Antonio Mazza
BACKGROUND: AtrioVentricular (AV) and InterVentricular (VV) delay optimization can improve ventricular function in Cardiac Resynchronization Therapy (CRT) and is usually performed by means of echocardiography. St Jude Medical has developed an automated algorhythm which calculates the optimal AV and VV delays (QuickOpt™) based on Intracardiac ElectroGrams, (IEGM), within 2 min. So far, the efficacy of the algorhythm has been tested acutely with standard lead position at right ventricular (RV) apex...
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676161/flecainide-challenge-test-predictors-of-unmasking-of-type-1-brugada-ecg-pattern-among-those-with-non-type-1-brugada-ecg-pattern
#16
Srinivasa Prasad, Narayanan Namboodiri, Anees Thajudheen, Gurbhej Singh, Mukund A Prabhu, S P Abhilash, Krishnakumar Mohanan Nair, Aamir Rashid, V K Ajit Kumar, Jaganmohan A Tharakan
BACKGROUND: Many subjects in community have non-type 1 Brugada pattern ECG with atypical symptoms, relevance of which is not clear. Provocative tests to unmask type 1 Brugada pattern in these patients would help in diagnosing Brugada Syndrome. However sensitivity and specificity of provocating drugs are variable. METHODS: We studied 29 patients referred to our institute with clinical presentation suggestive but not diagnostic of Brugada or with non-Type 1 Brugada pattern ECG...
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27676160/incidence-of-ineffective-safety-margin-testing-10%C3%A2-j-and-efficacy-of-routine-subcutaneous-array-insertion-during-implantable-cardioverter-defibrillator-implantation
#17
Marc-Alexander Ohlow, Marcus Roos, Bernward Lauer, J Christoph Geller
The purpose of this study was to assess (1) the incidence of safety margin testing <10 J (SMT) and (2) the efficacy/safety of routinely adding a subcutaneous array (SQA) (Medtronic 6996SQ) for these patients. Patients with SMT smaller than a 10-J safety margin from maximum output were considered to have very high readings and underwent SQA insertion. These patients were compared with the rest of the patients who had acceptable SMT (≥10 J). A total of 616 patients underwent ICD implantation during the analysis period...
March 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27485565/use-of-a-novel-pacing-mode-to-achieve-biventricular-pacing-in-a-patient-with-recurrent-atrial-lead-dislodgement-after-crt-d-implantation
#18
Soumen Devidutta, Chennapragada Sridevi, Calambur Narasimhan
Cardiac resynchronization therapy device (CRT-P and CRT-D) implantation has increased tremendously with increasing operator experience, eligible patients and expansion of indications. Refinements in devices and algorithms now aid physicians to improve biventricular pacing and optimize CRT. We report a case in which an interesting device program was used to achieve biventricular pacing after repeated dislodgement of the atrial lead in a patient implanted with CRT-D.
January 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27485564/incessant-tachycardia-in-a-patient-with-advanced-heart-failure-and-left-ventricular-assist-device-what-is-the-mechanism
#19
Amit Noheria, Siva K Mulpuru, Peter A Noseworthy, Samuel J Asirvatham
We present a case of incessant wide-complex tachycardia in a patient with left-ventricular assist device, and discuss the differential diagnosis with an in-depth analysis of the intracardiac tracings during the invasive electrophysiologic study, including interpretation of the relative timing of the fascicular signals during tachycardia and in sinus rhythm, and interpretation of pacing and entrainment maneuvers.
January 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27485563/deceptive-intracardiac-electrograms-during-an-icd-interrogation-a-clinical-challenge
#20
Manish Undavia, Hejmadi Prabhu, Todd Cohen
We present a case of a patient with significant structural heart disease from previous cardiac surgeries who presented for an electrophysiology study and radiofrequency ablation. The case highlights the significance of intra-atrial conduction delays in such patients and potential pitfalls it can present while interpreting intra-cardiac electrograms especially during implantable cardioverter defibrillator (ICD) interrogations.
January 2016: Indian Pacing and Electrophysiology Journal
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