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catheter ablation Arrhythmia

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https://www.readbyqxmd.com/read/28928979/ablation-of-a-left-sided-accessory-pathway-with-near-zero-fluoroscopy-in-a-9-year-old-boy
#1
Gabriel Cismaru, Lucian Muresan, Mihai Puiu, Radu Rosu, Gabriel Gusetu, Dana Pop, Dumitru Zdrenghea
Catheter ablation of cardiac arrhythmias in pediatric population is associated with the risk of ionizing radiation on the child. Due to a greater radiation sensitivity in children and a longer life expectancy newer techniques try to reduce the radiation exposure. A new technique for zero-fluoroscopy catheter ablation is described in a 9-year-old boy who had a left-sided concealed accessory pathway. The NAVX Ensite 3D mapping system permits catheter placement inside the venous system and movement inside the heart chambers without the use of X-rays...
September 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28921386/midterm-outcomes-of-two-staged-hybrid-ablation-of-persistent-and-long-standing-persistent-atrial-fibrillation-using-the-versapolar-epicardial-surgical-device-and-subsequent-catheter-ablation
#2
Petr Budera, Pavel Osmancik, Dalibor Herman, Jana Zdarska, David Talavera, Anna Mala, Radka Prochazkova, Zbynek Straka
PURPOSE: Hybrid ablation of atrial fibrillation (AF) is a promising treatment strategy for patients with non-paroxysmal AF, although, data regarding mid-term outcomes are limited. METHODS: Patients with persistent or long-standing persistent AF were enrolled. Initially, a thoracoscopic, right-sided, epicardial ablation was performed, with a goal of creating a box lesion on the posterior wall of the left atrium; a novel versapolar radiofrequency (RF) catheter was used...
September 18, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28919593/electrocardiographic-algorithms-to-guide-a-management-strategy-of-idiopathic-outflow-tract-ventricular-arrhythmias
#3
Bartosz Ludwik, Karol Deutsch, Mariusz Mazij, Janusz Śledź, Aleksandra Morka, Michał Labus, Michał Chrabąszcz, Bartosz Szafran, Jerzy Śpikowski, Lesław Szydłowski, Sebastian M Stec
INTRODUCTION    The current guidelines of the European Society of Cardiology outlined electrocardiographic (ECG) differentiation of site of origin (SOO) in patients with idiopathic ventricular arrhythmias (IVA).  OBJECTIVES    The aim of this study was to compare three ECG algorithms for differentiating SOO and to determine their diagnostic value for the management of outflow tract IVA. PATIENTS AND METHODS    Patients with IVA with inferior axis who underwent successful radiofrequency catheter ablation (RFCA) using the 3D-electroanatomical system were analyzed...
September 6, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28917558/cardiac-sympathectomy-for-the-management-of-ventricular-arrhythmias-refractory-to-catheter-ablation
#4
Travis Richardson, Ricardo Lugo, Pablo Saavedra, George Crossley, Walter Clair, Sharon Shen, Juan Carlos Estrada, Jay Montgomery, M Benjamin Shoemaker, Christopher Ellis, Gregory F Michaud, Eric Lambright, Arvindh Kanagasundram
BACKGROUND: Catheter ablation is now a mainstay of therapy for ventricular arrhythmias (VA). However, there are scenarios where either physiologic or anatomical factors make ablation less likely to be successful. OBJECTIVES: To demonstrate that cardiac sympathetic denervation (CSD) may be an alternate therapy for patients with difficult to ablate VA. METHODS: We identified all patients referred for CSD at a single center for indications other than LQTS and CPVT who had failed catheter ablation...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28917557/idiopathic-ventricular-arrhythmias-originating-from-the-right-coronary-sinus-prevalence-electrocardiographic-and-electrophysiologic-characteristics-and-catheter-ablation
#5
Yunlong Wang, Zhuo Liang, Shaoqin Wu, Zhihong Han, Xuejun Ren
BACKGROUND: Ventricular arrhythmias (VAs) of right coronary cusp (RCC) are not fully characterized. OBJECTIVES: To investigate the electrocardiographic and electrophysiologic characteristics, mapping and ablation of RCC-VAs. METHODS: Among 256 consecutive patients undergoing electrophysiologic evaluation and ablation of VAs of ventricular outflow tract origin, data were compared among 27 RCC-VAs, 50 VAs of the septal aspect of right ventricular outflow tract (RVOT, including from pulmonary artery) and 9 VAs of left coronary cusp (LCC)...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28916640/clinical-profile-and-consequences-of-atrial-fibrillation-in-hypertrophic-cardiomyopathy
#6
Ethan J Rowin, Anais Hausvater, Mark S Link, Patrick Abt, William Gionfriddo, Wendy Wang, Hassan Rastegar, N A Mark Estes, Martin S Maron, Barry J Maron
Background -Atrial fibrillation (AF), the most common sustained arrhythmia in hypertrophic cardiomyopathy (HCM), is capable of producing symptoms that impact quality of life and is associated with risk for embolic stroke. However, the influence of AF on clinical course and outcome in HCM remains incompletely resolved. Methods -Records were accessed of 1558 consecutive patients followed at the Tufts Medical Center Hypertrophic Cardiomyopathy Institute for 4.8 ± 3.4 years, from 2004 to 2014. Results -Of the 1558 HCM patients, 304 (20%) had episodes of AF, of which 226 (74%) were confined to symptomatic paroxysmal AF (PAF; average 5 ± 5; range 1 to > 20), while 78 (26%) developed permanent AF, preceded by 7 ± 6 PAF episodes...
September 15, 2017: Circulation
https://www.readbyqxmd.com/read/28903470/a-decade-of-information-on-the-use-of-cardiac-implantable-electronic-devices-and-interventional-electrophysiological-procedures-in-the-european-society-of-cardiology-countries-2017-report-from-the-european-heart-rhythm-association
#7
M J Pekka Raatikainen, David O Arnar, Bela Merkely, Jens Cosedis Nielsen, Gerhard Hindricks, Hein Heidbuchel, John Camm
Aims: The aim of this analysis was to provide comprehensive information on invasive cardiac arrhythmia therapies in the European Society of Cardiology (ESC) area over the past 10 years. Methods and results: The European Heart Rhythm Association (EHRA) has collected data on invasive arrhythmia therapies since 2008. This year 53 of the 56 ESC member countries provided data for the EHRA White Book. Here we present updated data on procedure rates together with information on demographics, economy, vital statistics, local healthcare systems and training activities...
August 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28881765/mitral-isthmus-ablation-using-a-circular-mapping-catheter-positioned-in-the-left-atrial-appendage-as-a-reference-for-conduction-block
#8
Takahiko Nishiyama, Takehiro Kimura, Taishi Fujisawa, Kazuaki Nakajima, Akira Kunitomi, Shin Kashimura, Yoshinori Katsumata, Nobuhiro Nishiyama, Yoshiyasu Aizawa, Keiichi Fukuda, Seiji Takatsuki
BACKGROUND: For perimitral atrial flutter (PMFL) developing after catheter ablation of atrial fibrillation (AF), to create a complete conduction block at the mitral isthmus (MI) is mandatory to terminate it, however, it is still challenging. METHODS: This study consisted of 80 patients (74 male, 61 ± 8.1 years) undergoing MI ablation. After a circular mapping catheter was positioned at the neck of the left atrial appendage (LAA), the MI ablation was performed on the MI line just below the LAA neck targeting the earliest activation recording site of the LAA catheter during pacing from the coronary sinus (CS)...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28865890/natriuretic-propeptides-as-markers-of-atrial-fibrillation-burden-and-recurrence-from-the-amio-cat-trial
#9
Stine Darkner, Jens Peter Goetze, Xu Chen, Kristoffer Henningsen, Steen Pehrson, Jesper Hastrup Svendsen
Natriuretic peptides are established plasma markers of systolic heart failure, but their usefulness for the evaluation of atrial fibrillation (AF) is unknown. We examined mid-regional pro-atrial natriuretic peptide (MR-proANP) and N-terminal pro-brain natriuretic peptide (NT-proBNP) in patients undergoing ablation for AF. A subpopulation of 102 patients (median age 60 [52;65], 82% male) from the AMIO-CAT trial (Recurrence of arrhythmia following short-term oral AMIOdarone after CATheter ablation for atrial fibrillation: a double-blind, randomized, placebo-controlled study) undergoing ablation for paroxysmal (n = 55) or persistent (n = 47) AF was studied...
July 24, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28861756/management-of-supraventricular-tachycardia-in-infants
#10
Chalese Richardson, Eric S Silver
Supraventricular tachycardia is the most common tachyarrhythmia encountered in infants. In older children and adults, definitive treatment of the supraventricular tachycardia substrate with catheter ablation is a common approach to management. However, in infants, the risks of catheter ablation are significantly higher, and the patients often outgrow the potential to experience episodes. Therefore, antiarrhythmic medications are often utilized to minimize the likelihood of experiencing episodes. This article reviews the common arrhythmia mechanisms encountered in infants and the medications used to treat these patients...
August 31, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28856145/ablation-of-long-standing-persistent-atrial-fibrillation
#11
REVIEW
Behram P Mody, Anoshia Raza, Jason Jacobson, Sei Iwai, Daniel Frenkel, Rhadames Rojas, Wilbert S Aronow
Atrial fibrillation (AF) is the most commonly encountered arrhythmia in the clinical setting affecting nearly 6 million people in United States and the numbers are only expected to rise as the population continues to age. Broadly it is classified into paroxysmal, persistent and longstanding persistent AF. Electrical, structural and autonomic remodeling are some of the diverse pathophysiological mechanisms that contribute to the persistence of AF. Our review article emphasizes particularly on long standing persistent atrial fibrillation (LSPAF) aspect of the disease which poses a great challenge for electrophysiologists...
August 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28841251/procedural-findings-and-ablation-outcome-in-patients-with-atrial-fibrillation-referred-after-two-or-more-failed-catheter-ablations
#12
Sanghamitra Mohanty, Chintan Trivedi, Carola Gianni, Domenico Giovanni Della Rocca, Eli Hamilton Morris, J David Burkhardt, Javier E Sanchez, Rodney Horton, G Joseph Gallinghouse, Richard Hongo, Salwa Beheiry, Amin Al-Ahmad, Luigi Di Biase, Andrea Natale
INTRODUCTION: This study reports the procedural findings and ablation outcome in AF patients referred after ≥2 failed PV isolation (PVI). METHODS: Three hundred and five consecutive AF patients referred after ≥2 PVI were included in the analysis. High-dose isoproterenol challenge was used to identify PV reconnection and non-PV triggers; the latter were ablated based on the operator's discretion during the index procedure. At the repeat procedure, non-PV triggers were ablated in all...
August 25, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28835834/supraventricular-arrhythmias-in-patients-with-adult-congenital-heart-disease
#13
Carina Blomström Lundqvist, Tatjana S Potpara, Helena Malmborg
An increasing number of patients with congenital heart disease survive to adulthood; such prolonged survival is related to a rapid evolution of successful surgical repairs and modern diagnostic techniques. Despite these improvements, corrective atrial incisions performed at surgery still lead to subsequent myocardial scarring harbouring a potential substrate for macro-reentrant atrial tachycardia. Macroreentrant atrial tachycardias are the most common (75 %) type of supraventricular tachycardia (SVT) in patients with adult congenital heart disease (ACHD)...
June 2017: Arrhythmia & Electrophysiology Review
https://www.readbyqxmd.com/read/28833720/near-field-impedance-accurately-distinguishes-among-pericardial-intracavitary-and-anterior-mediastinal-position
#14
David A Burkland, Anand V Ganapathy, Mathews John, Brian D Greet, Mohammad Saeed, Abdi Rasekh, Mehdi Razavi
INTRODUCTION: Epicardial catheter ablation is increasingly used to treat arrhythmias with an epicardial component. Nevertheless, percutaneous epicardial access remains associated with a significant risk of major complications. Developing a technology capable of confirming proper placement within the pericardial space could decrease complication rates. The purpose of this study was to examine differences in bioimpedance among the pericardial space, anterior mediastinum, and right ventricle...
August 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28832094/initial-experience-of-catheter-ablation-for-cardiac-arrhythmias-in-children-and-adolescents-at-a-newly-built-ablation-centre
#15
Radosław Pietrzak, Piotr Lodziński, Tomasz Książczyk, Paweł Balsam, Monika Gawałko, Grzegorz Opolski, Bożena Werner
BACKGROUND: Catheter ablation (CA) therapy is the first choice treatment in adults with heart rhythm disturbances. The arrhythmias in adults are mainly conditioned by coronary disease. Etiology of arrhythmias in children is mostly associated with inherited heart disorders. According to the current guidelines the CA is widely used in children, indicating the need to make it more achievable in pediatric population. AIM: To assess efficacy and safety of CA in children with different types of arrhythmias on the initial learning curve at newly built Ablation Center in The Independent Pediatric Hospital of Medical University of Warsaw...
August 23, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28827273/comparison-of-health-related-quality-of-life-in-patients-with-atrial-fibrillation-treated-with-catheter-ablation-or-antiarrhythmic-drug-therapy-a-systematic-review-and-meta-analysis-protocol
#16
Katherine S Allan, Shaunattonie Henry, Theresa Aves, Laura Banfield, J Charles Victor, Paul Dorian, Jeff S Healey, Jason Andrade, Sandra Carroll, Michael McGillion
INTRODUCTION: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia and causes patients considerable burden; symptoms such as palpitations and dyspnoea are common, leading to frequent emergency room visits. Patients with AF report reduced health-related quality of life (HQOL) compared with the general population; thus, treatments focus on the restoration of sinus rhythm to improve symptoms. Catheter ablation (CA) is a primary treatment strategy to treat AF-related burden in select patient populations; however, repeat procedures are often needed, there is a risk of major complications and the procedure is quite costly in comparison to medical therapy...
August 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28822529/atrial-fibrillation-and-hyperthyroidism-a-literature-review
#17
REVIEW
Vivek Reddy, Wael Taha, Shanker Kundumadam, Mazhar Khan
Atrial fibrillation is the most common arrhythmia worldwide with increasing frequency noted with age. Hyperthyroidism is a well-known cause of atrial fibrillation with a 16%-60% prevalence of atrial fibrillation in patients with known hyperthyroidism Ross et al. (2016). While hyperthyroidism as a causative factor of atrial fibrillation is well established, this literature review aims to answer several questions on this topic including: 1. The relationship of atrial fibrillation to hyperthyroidism 2. Atrial fibrillation as a predictor of hyperthyroidism 3...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28800176/catheter-ablation-of-left-atrial-arrhythmias-on-uninterrupted-oral-anticoagulation-with-vitamin-k-antagonists-how-is-the-relationship-between-international-normalized-ratio-activated-clotting-time-and-procedure-related-complications
#18
Marc Kottmaier, Felix Bourier, Verena Semmler, Martha Telishevska, Katharina Koch-Büttner, Carsten Lennerz, Sarah Lengauer, Marielouise Kornmayer, Elena Rousseva, Stephanie Brooks, Amir Brkic, Christian Grebmer, Christoph Kolb, Gabriele Hessling, Isabel Deisenhofer, Tilko Reents
BACKGROUND: Ablation of atrial fibrillation (AF) on uninterrupted phenprocoumon reduces periprocedural thromboembolic and bleeding complications. Heparin is administered intraprocedurally to achieve activated clotting times (ACT) of 300-400 seconds. We investigated the effect of international normalized ratio (INR) on ACT and intraprocedural heparin requirements. Moreover, safety of a target ACT of 250-300 seconds was investigated. METHODS AND RESULTS: We studied 949 patients referred for AF or left atrial tachycardia ablation...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28797677/emergence-of-atrioventricular-nodal-reentry-tachycardia-after-surgical-or-catheter-ablation-for-atrial-fibrillation-are-we-creating-the-arrhythmia-substrate
#19
Jorge Romero, Saurabh Kumar, Fujii Akira, David F Briceño, Usha B Tedrow, Laurence Epstein, Roy John, William G Stevenson, Gregory F Michaud
BACKGROUND: Atrioventricular nodal reentry tachycardia (AVNRT) is common in adults and often involves reentry through ≥2 atrioventricular nodal-atrial connections. Although AVNRT can be a trigger for atrial fibrillation (AF), we have observed new-onset AVNRT after AF ablation procedures. OBJECTIVE: The purpose of this study was to determine whether ablation involving the septum or proximal coronary sinus (CS) during AF ablation may create a substrate favorable for AVNRT...
August 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28794085/idiopathic-ventricular-arrhythmias-originating-from-the-parietal-band-electrocardiographic-and-electrophysiological-characteristics-and-outcome-of-catheter-ablation
#20
Takumi Yamada, Naoki Yoshida, Taihei Itoh, Silvio H Litovsky, Harish Doppalapudi, H Thomas McElderry, G Neal Kay
BACKGROUNDS: The parietal band is one of the muscle bands in the right ventricle. This study investigated the electrocardiographic and electrophysiological characteristics and ablation outcome of idiopathic ventricular arrhythmias (VAs) originating from the parietal band. METHODS AND RESULTS: We studied 14 patients with idiopathic VA origins in the parietal band among 294 consecutive patients with VA origins in the right ventricle. The QRS morphologies of the parietal band VAs were characterized by a left bundle branch block and left inferior (n=12) or superior (n=2) axis pattern with the presence of a notch in the middle of the QRS in all cases, precordial transition at ≤lead V3 in 7 patients, and a slow QRS onset in 4 patients...
August 2017: Circulation. Arrhythmia and Electrophysiology
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