keyword
MENU ▼
Read by QxMD icon Read
search

Electroanatomic mapping

keyword
https://www.readbyqxmd.com/read/27932238/gender-differences-in-patients-with-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-clinical-manifestations-electrophysiological-properties-substrate-characteristics-and-prognosis-of-radiofrequency-catheter-ablation
#1
Chin-Yu Lin, Fa-Po Chung, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Tze-Fan Chao, Jo-Nan Liao, Yao-Ting Chang, Yun-Yu Chen, Rohit Walia, Abigail Louise D Te, Shinya Yamada, Shih-Ann Chen
BACKGROUND: Gender differences in the penetrance and clinical expression of genetic mutations have been reported in patients with arrhythmogenic right ventricular (RV) dysplasia/cardiomyopathy (ARVD/C). Our study aimed at clarifying the impact of gender on ventricular substrates and clinical outcomes after radiofrequency catheter ablation (RFCA). METHODS: Patients with ARVD/C underwent RFCA for drug-refractory ventricular arrhythmias (VAs) were consecutively enrolled...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27922815/successful-cryoablation-of-an-anteroseptal-accessory-pathway-guided-by-electroanatomical-activation-mapping
#2
Emre Yalcinkaya, Stephan Winnik, Laurent Haegeli, Corinna Brunckhorst, Firat Duru
The use of electroanatomical mapping can facilitate the identification of the ideal cryoablation site by providing a three-dimensional map of the earliest activation site. Combined use of the cryoablation technology with electroanatomical mapping can further increase the precision and safety of the procedure by applying test applications at a lower energy level.
December 2016: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/27909489/advanced-mapping-systems-to-guide-atrial-fibrillation-ablation-electrical-information-that-matters
#3
REVIEW
Sotirios Nedios Md, Philipp Sommer Md, Andreas Bollmann Md PhD, Gerhard Hindricks Md
Catheter ablation is an established and widespread treatment for atrial fibrillation (AF). Contemporary electroanatomical mapping systems (EAMs) have been developed to facilitate mapping processes but remain limited by spatiotemporal and processing restrictions. Advanced mapping systems emerged from the need to better understand and ablate complex AF substrate, by improving the acquisition and illustration of electrophysiological information. In this review, we present you the recently advanced mapping systems for AF ablation in comparison to the established contemporary EAMs...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27890738/ventricular-arrhythmias-associated-with-left-ventricular-non-compaction-electrophysiological-characteristics-mapping-and-ablation
#4
Daniele Muser, Jackson J Liang, Walter R T Witschey, Rajeev K Pathak, Simon Castro, Silvia Magnani, Erica S Zado, Fermin C Garcia, Benoit Desjardins, David J Callans, David S Frankel, Francis E Marchlinski, Pasquale Santangeli
BACKGROUND: Left ventricular non-compaction (LVNC) is a primary cardiomyopathy that can present with recurrent ventricular arrhythmias (VAs). Data on the benefit of catheter ablation (CA) of VAs in LVNC are lacking. OBJECTIVES: To describe the electrophysiologic features and outcomes of CA of VAs in LVNC. METHODS: The cohort consisted of 9 patients (age 42±15 years) with diagnosis of LVNC based upon established criteria and VA (VT in 3 and frequent PVCs in 6) despite treatment with a mean of 2±1 antiarrhythmic drugs (AADs)...
November 23, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27885742/catheter-ablation-in-the-right-ventricular-outflow-tract-associated-with-occlusion-of-left-anterior-descending-coronary-artery
#5
Daniel Benhayon, Eyal Nof, William W Chik, Francis Marchlinski
Major vessel injury during right ventricular outflow tract ablation is not something widely recognized, and routine evaluation of the left anterior descending artery (LAD) location in relation to the septal right ventricle is not routinely performed. In the present article we report a case of acute LAD occlusion after RVOT ablation and then illustrate the intimately close relationship of the left anterior descending artery to the anterior septal site of the RVOT (∼ 2-3 cm under the pulmonic valve), using a combination of intracardiac echocardiography and 3D electroanatomical mapping (EAM) recorded during a second case, in order to specifically point to the area at risk...
November 25, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27870969/preliminary-experience-with-high-density-electroanatomical-mapping-for-ablation-of-atrial-fibrillation-comparison-of-mini-basket-and-novel-open-irrigated-magnetic-ablation-catheter-in-consecutive-patients
#6
Jedrzej Kosiuk, Sebastian Hilbert, Silke John, Livio Bertagnolli, Gerhard Hindricks, Andreas Bollmann
BACKGROUND: Recently, a novel electroanatomic mapping system enabling rapid and automatic acquisition of high-resolution maps has been introduced. Previous reports focused on system use in combination with a mini-basket catheter. However, a novel system-specific, magnet-enabled ablation catheter eliminates the need for the mini-basket catheter and can potentially reduce procedure complexity and cost. Here we present our first experience from two consecutive case series using both procedural settings...
November 13, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27867071/evaluation-of-a-novel-high-resolution-mapping-system-for-catheter-ablation-of-ventricular-arrhythmias
#7
Karthik Viswanathan, Lilian Mantziari, Charles Butcher, Emily Hodkinson, Eric Lim, Habib Khan, Sandeep Panikker, Shouvik Haldar, Julian W E Jarman, David G Jones, Wajid Hussain, John P Foran, Vias Markides, Tom Wong
BACKGROUND: The mapping of ventricular arrhythmias in humans using a mini-basket 64-electrode catheter paired with a novel automatIc mapping system (Rhythmia(TM)) has not been evaluated. OBJECTIVE: To evaluate the safety and efficacy of mapping ventricular arrhythmias and clinical outcomes after ablation using this system. METHODS: Electroanatomic (EA) maps for ventricular arrhythmias were obtained during 20 consecutive procedures in 19 patients (ventricular tachycardia [VT] 12; ventricular ectopy [VE] 7)...
November 17, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27862594/three-dimensional-electroanatomic-mapping-system-enhanced-cardiac-resynchronization-therapy-device-implantation-results-from-a-multicenter-registry
#8
M Del Greco, M Maines, M Marini, A Colella, M Zecchin, L Vitali-Serdoz, A Blandino, L Barbonaglia, G Allocca, R Mureddu, B Marenna, P Rossi, D Vaccari, R Chianca, S Indiani, I DI Matteo, C Angheben, A Zorzi
INTRODUCTION: Cardiac resynchronization therapy (CRT) device implantation guided by an electroanatomic mapping system (EAMS) is an emerging technique that may reduce fluoroscopy and angiography use and provide information on coronary sinus (CS) electrical activation. We evaluated the outcome of the EAMS-guided CRT implantation technique in a multicenter registry. METHODS: During the period 2011-2014 we enrolled 125 patients (80% males, age 74 [71-77] years) who underwent CRT implantation by using the EnSite NavX system to create geometric models of the patient's cardiac chambers, build activation mapping of the CS and guide leads positioning...
November 9, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27862561/long-term-outcome-of-left-atrial-voltage-guided-substrate-ablation-during-atrial-fibrillation-a-novel-adjunctive-ablation-strategy
#9
Atsuhiko Yagishita, J Rod Gimbel, Samer DE Oliveira, Harish Manyam, Dina Sparano, Ivan Cakulev, Judith Mackall, Mauricio Arruda
INTRODUCTION: Left atrium (LA) low voltage area (LVA) on 3-D electroanatomic bipolar voltage mapping (EAVM), as a surrogate for scar, is associated with poor AF ablation outcome. We evaluated the long-term outcome of a LVA-guided atrial fibrillation (AF) substrate modification strategy as an adjunct to pulmonary vein isolation (PVI). METHODS AND RESULTS: Two hundred and one consecutive patients with AF (82% persistent / Non-PAF, age 65 years), who underwent EAVM during AF prior to PVI, were divided into two groups according to the presence or absence of LVA outside the PV antra, defined as bipolar voltage of < 0...
November 12, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27788854/scar-homogenization-versus-limited-substrate-ablation-in-patients-with%C3%A2-nonischemic-cardiomyopathy-and%C3%A2-ventricular-tachycardia
#10
Yalçın Gökoğlan, Sanghamitra Mohanty, Carola Gianni, Pasquale Santangeli, Chintan Trivedi, Mahmut F Güneş, Rong Bai, Amin Al-Ahmad, G Joseph Gallinghouse, Rodney Horton, Patrick M Hranitzky, Javier E Sanchez, Salwa Beheiry, Richard Hongo, Dhanunjaya Lakkireddy, Madhu Reddy, Robert A Schweikert, Antonio Dello Russo, Michela Casella, Claudio Tondo, J David Burkhardt, Sakis Themistoclakis, Luigi Di Biase, Andrea Natale
BACKGROUND: Scar homogenization improves long-term ventricular arrhythmia-free survival compared with standard limited-substrate ablation in patients with post-infarction ventricular tachycardia (VT). Whether such benefit extends to patients with nonischemic cardiomyopathy and scar-related VT is unclear. OBJECTIVES: The aim of this study was to assess the long-term efficacy of an endoepicardial scar homogenization approach compared with standard ablation in this population...
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27782003/electromechanical-wave-imaging-ewi-validation-in-all-four-cardiac-chambers-with-3d-electroanatomic-mapping-in-canines-in-vivo
#11
Alexandre Costet, Elaine Wan, Ethan Bunting, Julien Grondin, Hasan Garan, Elisa Konofagou
Characterization and mapping of arrhythmias is currently performed through invasive insertion and manipulation of cardiac catheters. Electromechanical wave imaging (EWI) is a non-invasive ultrasound-based imaging technique, which tracks the electromechanical activation that immediately follows electrical activation. Electrical and electromechanical activations were previously found to be linearly correlated in the left ventricle, but the relationship has not yet been investigated in the three other chambers of the heart...
November 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27773399/a-novel-approach-in-the-use-of-radiofrequency-catheter-ablation-of-septal-hypertrophy-in-hypertrophic-obstructive-cardiomyopathy
#12
Abhijeet B Shelke, Rajeev Menon, Anuj Kapadiya, Sachin Yalagudri, Daljeet Saggu, Sandeep Nair, C Narasimhan
OBJECTIVE: Alcohol septal ablation (ASA) is a therapeutic alternative to surgical myectomy in patients with hypertrophic obstructive cardiomyopathy (HOCM). However, the anatomical variability of the septal branch, risk of complete heart block, and late onset ventricular arrhythmias are limitations to its therapeutic usage. There is recent interest in the use of radiofrequency catheter ablation (RFCA) as a therapeutic option in HOCM. We aimed to assess the safety and efficacy of RFCA in the treatment of symptomatic HOCM...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27738071/angiotensin-converting-enzyme-2-activity-and-human-atrial-fibrillation-increased-plasma-angiotensin-converting-enzyme-2-activity-is-associated-with-atrial-fibrillation-and-more-advanced-left-atrial-structural-remodelling
#13
Tomos E Walters, Jonathan M Kalman, Sheila K Patel, Megan Mearns, Elena Velkoska, Louise M Burrell
AIM: Angiotensin converting enzyme 2 (ACE2) is an integral membrane protein whose main action is to degrade angiotensin II. Plasma ACE2 activity is increased in various cardiovascular diseases. We aimed to determine the relationship between plasma ACE2 activity and human atrial fibrillation (AF), and in particular its relationship to left atrial (LA) structural remodelling. METHODS AND RESULTS: One hundred and three participants from a tertiary arrhythmia centre, including 58 with paroxysmal AF (PAF), 20 with persistent AF (PersAF), and 25 controls, underwent clinical evaluation, echocardiographic analysis, and measurement of plasma ACE2 activity...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27738070/mapping-guided-characterization-of-mechanical-and-electrical-activation-patterns-in-patients-with-normal-systolic-function-using-a-sensor-based-tracking-technology
#14
Christopher Piorkowski, Ole-A Breithardt, Hedi Razavi, Yelena Nabutovsky, Stuart P Rosenberg, Craig D Markovitz, Arash Arya, Sascha Rolf, Silke John, Jedrzej Kosiuk, Eric Olson, Charlotte Eitel, Yan Huo, Michael Döring, Sergio Richter, Kyungmoo Ryu, Thomas Gaspar, Frits W Prinzen, Gerhard Hindricks, Philipp Sommer
AIMS: In times of evolving cardiac resynchronization therapy, intra-procedural characterization of left ventricular (LV) mechanical activation patterns is desired but technically challenging with currently available technologies. In patients with normal systolic function, we evaluated the feasibility of characterizing LV wall motion using a novel sensor-based, real-time tracking technology. METHODS AND RESULTS: Ten patients underwent simultaneous motion and electrical mapping of the LV endocardium during sinus rhythm using electroanatomical mapping and navigational systems (EnSite™ NavX™ and MediGuide™, SJM)...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27738066/does-the-extent-of-left-atrial-arrhythmogenic-substrate-depend-on-the-electroanatomical-mapping-technique-impact-of-pulmonary-vein-mapping-catheter-vs-ablation-catheter
#15
Martin Huemer, Daniel Qaiyumi, Philipp Attanasio, Abdul Parwani, Burkert Pieske, Florian Blaschke, Leif-Hendrik Boldt, Wilhelm Haverkamp, Alexander Wutzler
AIMS: In persistent atrial fibrillation (AF), left atrial low-voltage areas and complex fractionated atrial electrograms (CFAEs) have been thoroughly discussed as critical substrate points for AF perpetuation. Thus, in patients undergoing pulmonary vein isolation, these sites are often considered additional ablation targets. Currently, mapping techniques for these substrate indicators are still under discussion. The aim of this study was to evaluate the impact of different mapping catheters on the detection of low-voltage areas and CFAE...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27714605/effect-of-left-atrial-volume-and-pulmonary-vein-anatomy-on-outcome-of-nmarq%C3%A2-catheter-ablation-of-paroxysmal-atrial-fibrillation
#16
Giuseppe Stabile, Matteo Anselmino, Ezio Soldati, Ermengildo De Ruvo, Francesco Solimene, Assunta Iuliano, Luigi Sciarra, Maria Grazia Bongiorni, Leonardo Calò, Fiorenzo Gaita
PURPOSE: Left atrial volume (LA) and pulmonary vein (PV) anatomy may potentially relate to technical challenges in achieving stable and effective catheter position in case of atrial fibrillation (AF) ablation by means of "one-shot" catheters. The aim of this study was to investigate whether LA volume and PV anatomy, evaluated by computed tomography (CT) or magnetic resonance (MR) prior to ablation, predict acute and midterm outcome of AF ablation by nMARQ™. METHODS: We included 75 patients (mean age 58 ± 11 years, 67 % male) with symptomatic paroxysmal AF...
October 6, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27702855/simultaneous-display-of-multiple-three-dimensional-electrophysiological-datasets-dot-mapping
#17
Steven E Williams, Nick W F Linton, Steven Niederer, Mark D O'Neill
AIMS: Complex ablation procedures are supported by accurate representation of an increasing variety of electrophysiological and imaging data within electroanatomic mapping systems (EMS). This study aims to develop a novel method for representing multiple complementary datasets on a single cardiac chamber model. Validation of the system and its application to both atrial and ventricular arrhythmias is examined. METHODS AND RESULTS: Dot mapping was conceived to display multiple datasets by utilizing quantitative surface shading to represent one dataset and finely spaced dots to represent others...
October 4, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27702853/left-atrial-model-reconstruction-in-atrial-fibrillation-ablation-reliability-of-new-mapping-and-complex-impedance-systems
#18
Aldo Bonso, Mauro Fantinel, Giovanna Scalchi, Sabrina Ferrara, Stefano Indiani, Federico Calore, Claudia Licciardello
AIMS: The effectiveness of atrial fibrillation (AF) ablation relies on detailed knowledge of the anatomy of the left atrium (LA) and pulmonary veins (PVs). It is common to combine computed tomography/magnetic resonance (CT/MR) with imaging by electroanatomical (EA) mapping systems. The aim of this study was to evaluate the accuracy of LA anatomical reconstruction by 'One Model' and 'VeriSense' tools (Ensite Velocity 3.0, St Jude Medical), compared with CT/MR imaging. METHODS AND RESULTS: Seventy-two patients with AF underwent pre-procedural imaging (97% CT-scan, 3% MR imaging) and transcatheter ablation of PVs...
October 4, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27658928/investigation-of-the-atrial-conduction-time-measured-by-tissue-doppler-imaging-at-the-left-atrial-appendage-and-the-actual-electrical-conduction-time-consideration-of-left-atrial-remodeling-in-atrial-fibrillation-patients
#19
Yuichi Hori, Shiro Nakahara, Naofumi Anjo, Ayako Nakagawa, Naoki Nishiyama, Kouta Yamada, Akiko Hayashi, Takaaki Komatsu, Sayuki Kobayashi, Yoshihiko Sakai, Isao Taguchi
PURPOSE: The atrial conduction time measured by echocardiography using tissue Doppler imaging (TDI) has been reported as a predictive factor of left atrial (LA) remodeling. We investigated the P wave to LA appendage (LAA) conduction time defined by transthoracic echocardiography using TDI (P-LAA TDI), and directly compared the actual LA electrical conduction time determined by the electrophysiological data. Additionally, we confirmed the clinical utility of the P-LAA TDI by examining the relationship to the electroanatomical LA remodeling data...
September 22, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27634972/radiofrequency-ablation-of-ventricular-fibrillation-correlation-between-electroanatomical-mapping-and-gross-pathology
#20
Nicholas McKeag, Jonathan Dalzell, Benjamin Szwejkowski, Allan McPhaden, Derek Connelly, Gary Wright, Roy Gardner
No abstract text is available yet for this article.
September 1, 2016: QJM: Monthly Journal of the Association of Physicians
keyword
keyword
25063
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"