Read by QxMD icon Read


Ayelet Shauer, Lennart J De Vries, Ferdi Akca, Jorge Palazzolo, Mohammed Shurrab, Ilan Lashevsky, Irving Tiong, Sheldon M Singh, David Newman, Tamas Szili-Torok, Eugene Crystal
Aims: Remote magnetic navigation (RMN) is an alternative to manual catheter control (MCC) radiofrequency ablation of right ventricular outflow tract (RVOT) arrhythmias. The data to support RMN approach is limited. We aimed to investigate the clinical and procedural outcomes in a cohort of patients undergoing RVOT premature ventricular complex/ventricular tachycardia (PVCs/VT) ablation procedures using RMN vs. MCC. Methods and results: Data was collected from two centres...
May 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Baptiste Maille, Moloy Das, Ahmed Hussein, Matthew Shaw, Vivek Chaturvedi, Maureen Morgan, Christina Ronayne, Richard L Snowdon, Dhiraj Gupta
INTRODUCTION: The ConfiDENSE™ module (Carto3 v4) allows rapid annotation of endocardial electrograms acquired by multielectrode (ME) mapping. However, its accuracy in assessing atrial voltages is unknown. METHODS AND RESULTS: Two ConfiDENSE™ left atrial voltage maps were created during continuous pacing in 20 patients undergoing catheter ablation for persistent AF using a ME lasso catheter and a contact force (CF) sensing ablation catheter. The automated tissue proximity indicator (TPI) filter was then applied to the ME map to yield a TPI map...
March 5, 2018: Journal of Cardiovascular Electrophysiology
Mihail G Chelu, Alan K Morris, Eugene G Kholmovski, Jordan B King, Gagandeep Kaur, Michelle A Silver, Joshua E Cates, Frederick T Han, Nassir F Marrouche
INTRODUCTION: Adequate catheter/atrial tissue contact is critical for lesion formation during radiofrequency (RF) ablation of atrial fibrillation (AF). Late gadolinium enhancement magnetic resonance imaging (LGE-MRI) is a unique tool for the evaluation of lesion formation and detection of acute esophageal injury. METHODS: LGE-MRIs were obtained prior, within 24 hours of, and at 115 ± 62 days after first AF ablation in 36 patients. The Visitag module of CARTO3 was used to collect contact force (CF) and duration from a CF sensing ablation catheter for each registered ablation point...
March 2018: Journal of Cardiovascular Electrophysiology
W Ji, J J Wu, Y J Qian, Y W Chen, L J Fu, J Shen, F Li
Objective: To evaluate the clinical effect and summarize the experience of radiofrequency catheter ablation (RFCA) for children suffered from premature ventricular contractions (PVCs). Methods: This retrospective study was conducted by descriptive analysis. A total of 108 cases with frequent PVCs from Shanghai Children's Medical Center were treated with RFCA under the guidance of CARTO3 system from January 2011 to December 2016. The immediate success rate of the procedure, the recurrence rate and the perioperative complications were summarized...
January 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Yuan Yuan, Deyong Long, Caihua Sang, Ling Tao, Jianzeng Dong, Changsheng Ma
OBJECTIVE: To investigate whether switching the ablation catheter between the right and left atria through transseptal puncture site can be accurately performed without fluoroscopy. METHODS: Forty patients with persistent atrial fibrillation (mean age, 60.2±7.4 years; 65% males) got "2C3L" approach were randomized in a 1:1 ratio to undergo either crossing interatrial septum guided by fluoroscopy (trackless group) or crossing septum guided by track image that was mapped by Carto3 system (track group)...
June 2017: Anatolian Journal of Cardiology
Ting-Yan Zhu, Shen-Rong Liu, Yan-Yu Chen, Liang-Zhen Xie, Li-Wei He, Su-Rong Meng, Jian Peng
OBJECTIVE: To compare the safety, feasibility, and efficacy of a completely nonfluoroscopic approach to radiofrequency catheter ablation (RFCA) using CARTO3 and ablation with conventional fluoroscopic guidance for treatment of idiopathic premature ventricular contractions from the aortic sinus cusp (ASC-PVCs). METHODS: From April 2013 to October 2015, we prospectively enrolled 52 consecutive patients with ASC-PVCs scheduled for either CARTO3 mapping-guided zero-fluoroscopy ablation (group A, n=23) or conventional fluoroscopic ablation (group B, n=29)...
August 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Atsuhiko Yagishita, Samer DE Oliveira, Ivan Cakulev, J Rod Gimbel, Dina Sparano, Harish Manyam, Alvaro Manrique-Garcia, Michael Arredondo, Judith Mackall, Mauricio Arruda
INTRODUCTION: Left atrial (LA) electroanatomical voltage mapping (EAVM) correlates with scar on LGE-MRI and has been used to guide ablation of low voltage area (LVA) in sinus rhythm (SR). We compared EAVM in SR and AF in a cohort of AF patients, and in SR between patients with AF and without AF or structural heart disease (control). METHODS AND RESULTS: Twenty-seven AF patients, 9 with paroxysmal AF (PAF), underwent point-by-point EAVM during SR and AF using same Carto3 geometry...
August 2016: Journal of Cardiovascular Electrophysiology
Felix Bourier, Tilko Reents, Sonia Ammar-Busch, Verena Semmler, Marta Telishevska, Marc Kottmaier, Carsten Lennerz, Christian Grebmer, Christof Kolb, Isabel Deisenhofer, Gabriele Hessling
BACKGROUND: Transseptal puncture for left atrial (LA) access is still mainly performed using fluoroscopy and transesophageal or intracardiac echocardiography. We present an easily applicable approach for the guidance of transseptal puncture that uses the combination of a 3D-mapping system and CT-derived 3D-overlayed anatomy. METHODS AND RESULTS: A computer tomographic (CT) LA-angiography was performed in n = 65 patients prior to a scheduled atrial fibrillation ablation procedure...
March 2016: Journal of Cardiovascular Electrophysiology
Scott R Ceresnak, Lynn Nappo, Christopher M Janson, Robert H Pass
BACKGROUND: CARTO3 is frequently used during ablation but is not designed to allow visualization of non-CARTO3 ablation catheters. We describe how cryoablation catheters can be visualized and recorded using CARTO3 with minimal fluoroscopy (FLUORO) usage. METHODS: Retrospective review of patients ≤21 years undergoing cryoablation with CARTO3 from 2010 to 2013 for ablation of supraventricular tachycardia. After mapping with a Navistar catheter, the Navistar was removed and a cryocatheter was utilized...
January 2016: Pacing and Clinical Electrophysiology: PACE
Fuminori Namino, Yasuhisa Iriki, Ryuichi Maenosono, Hitoshi Ichiki, Hideki Okui, Akino Yoshimura, Naoya Oketani, Masakaze Matsushita, Mitsuru Ohishi, Teruto Hashiguchi
BACKGROUND: Complex fractionated atrial electrogram (CFAE)-targeted catheter ablation (CFAE ablation) requires a high rate of atrial fibrillation (AF) termination to provide good outcomes. We determined the optimal settings of CFAE software. METHODS: In our 430 consecutive patients, AF was terminated in 97 (234/242) and 79% (149/188) of patients with paroxysmal and persistent AF, respectively, by CFAE ablation combined with (31%) or without (69%) pulmonary vein isolation, occasionally with nifekalant infusion...
February 2015: Journal of Arrhythmia
Sven Knecht, Christian Sticherling, Tobias Reichlin, Nikola Pavlovic, Aline Mühl, Beat Schaer, Stefan Osswald, Michael Kühne
AIMS: It is recommended to keep exposure to ionizing radiation as low as reasonably achievable. The aim of this study was to determine whether fluoroscopy-free mapping and ablation using a standardized procedural protocol is feasible in patients undergoing pulmonary vein isolation (PVI). METHODS AND RESULTS: Sixty consecutive patients were analysed: Thirty consecutive patients undergoing PVI using Carto3 were treated using a standardized procedural fluoroscopy protocol with X-ray being disabled after transseptal puncture (Group 1) and compared with a set of previous 30 consecutive patients undergoing PVI without a specific recommendation regarding the use of fluoroscopy (Group 2)...
November 2015: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Antonio Di Monaco, Federico Quadrini, Grigorios Katsouras, Vincenzo Caccavo, Federica Troisi, Francesco Quatraro, Giacomo Cecere, Tommaso Langialonga, Massimo Grimaldi
BACKGROUND: The circular nMARQ ablation catheter is a useful tool for pulmonary vein isolation (PVI). Some studies reported a high incidence of esophageal lesions by using this catheter. OBJECTIVE: The primary aim of this study was to compare the effects on the esophageal wall of bipolar and unipolar energy applied by the nMARQ ablation catheter during AF ablation. METHODS: Forty patients (mean age 53 ± 8 years; 26 [65%] men) were enrolled to perform PVI for symptomatic atrial fibrillation...
June 2015: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Marco Scaglione, Elisa Ebrille, Domenico Caponi, Alessandra Siboldi, Giovanni Bertero, Paolo Di Donna, Fulvio Gabbarini, Cristina Raimondo, Francesca Di Clemente, Paolo Ferrato, Maurizio Marasini, Fiorenzo Gaita
BACKGROUND: Fluoroscopic catheter ablation of cardiac arrhythmias in pediatric patients exposes the patients to the potential risk of radiation considering the sensitivity of this population and its longer life expectancy. We evaluated the feasibility, safety, and efficacy of accessory pathway (AP) ablation guided by CARTO3 electroanatomic mapping (EAM) system with both cryoenergy and radiofrequency (RF) energy in order to avoid x-ray exposure in pediatric patients. METHODS: We included 44 patients (mean age: 13...
June 2015: Pacing and Clinical Electrophysiology: PACE
Alex J A McLellan, Markus P Schlaich, Andrew J Taylor, Sandeep Prabhu, Dagmara Hering, Louise Hammond, Petra Marusic, Jacqueline Duval, Yusuke Sata, Andris Ellims, Murray Esler, Karlheinz Peter, James Shaw, Antony Walton, Jonathan M Kalman, Peter M Kistler
BACKGROUND: Hypertension is the most common modifiable risk factor associated with atrial fibrillation. OBJECTIVE: The purpose of this study was to determine the effects of blood pressure (BP) lowering after renal denervation on atrial electrophysiologic and structural remodeling in humans. METHODS: Fourteen patients (mean age 64 ± 9 years, duration of hypertension 16 ± 11 years, on 5 ± 2 antihypertensive medications) with treatment-resistant hypertension underwent baseline 24-hour ambulatory BP monitoring, echocardiography, cardiac magnetic resonance imaging, and electrophysiologic study...
May 2015: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Emin Evren Özcan, Gabor Szeplaki, Tamas Tahin, Istvan Osztheimer, Szabolcs Szilagyi, Astrid Apor, Pal Maurovich Horvath, Hajnalka Vago, Béla Merkely, Laszlo Geller
BACKGROUND: Radiofrequency (RF) catheter ablation guided by electroanatomic mapping systems is an effective therapy for atrial fibrillation. However, it may be affected by respiration movements. The aim of this study was to determine the impact of respiratory gating on procedural parameters in patients undergoing catheter ablation of atrial fibrillation (AF). METHODS AND RESULTS: One-hundred forty consecutive patients undergoing pulmonary vein isolation were admitted to study...
September 2014: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
Vaibhav R Vaidya, Christopher V Desimone, Malini Madhavan, Amit Noheria, Mohammed Shahid, Jacob Walters, Dorothy J Ladewig, Susan B Mikell, Susan B Johnson, Scott H Suddendorf, Samuel J Asirvatham
BACKGROUND: Hemodynamic instability hinders activation and entrainment mapping during ventricular tachycardia ablation. The Impella 2.5 microaxial flow device (MFD; Abiomed Inc., Danvers, MA, USA) is used to prevent hemodynamic instability during electrophysiologic study. However, electromagnetic interference (EMI) generated by this device can preclude accurate electroanatomic mapping. METHODS: Impella was placed in the left ventricle of 7 canines for circulatory support...
July 2014: Journal of Cardiovascular Electrophysiology
Felix Bourier, Rebecca Fahrig, Paul Wang, Pasquale Santangeli, Klaus Kurzidim, Norbert Strobel, Teri Moore, Cameron Hinkel, Amin Al-Ahmad
BACKGROUND: With increasing complexity in electrophysiology (EP) procedures, the use of electroanatomic mapping systems (EAMS) as a supplement to fluoroscopy has become common practice. This is the first study that evaluates spatial and point localization accuracy for 2 current EAMS, CARTO3(®) (Biosense Webster, Diamond Bar, CA, USA) and EnSite Velocity(®) (St. Jude Medical Inc., St. Paul, MN, USA), and for a novel overlay guidance (OG) software (Siemens AG, Forchheim, Germany) in a phantom experiment...
January 2014: Journal of Cardiovascular Electrophysiology
Ermenegildo de Ruvo, Serena Dottori, Luigi Sciarra, Marco Rebecchi, Borrelli Alessio, Scarà Antonio, Lucia De Luca, Anna Maria Martino, Fabrizio Guarracini, Alessandro Fagagnini, Ernesto Lioy, Leonardo Calò
PURPOSE: Cavotricuspid isthmus (CTI) ablation for typical atrial flutter (AFL) has become the preferred treatment for this arrhythmia. The aims of this study were to assess the impact of respiratory gating (RG) on electroanatomical mapping of CTI and to assess the efficiency of CTI ablation guided by the Carto3® system equipped with the new respiration gating software. METHODS: Forty-four consecutive patients (mean age, 60 ± 13 years; 25 male) undergoing cavotricuspid ablation for symptomatic common AFL were randomly assigned to CARTO™ mapping with or without enabling RG module (Group A, RG OFF, Group B, RG ON)...
January 2013: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Eszter Mária Végh, Gábor Széplaki, Szabolcs Szilágyi, István Osztheimer, Tamás Tahin, Béla Merkely, László Gellér
A 29-year-old male was admitted to our outpatient clinic because of palpitation and documented narrow QRS arrhythmia. Based on the ECG, supraventricular tachycardia was diagnosed, electrophysiological examination was indicated and ablation therapy was recommended. During positioning of the catheter the patient developed arrhythmia. On the coronary sinus catheter the activation spread from distal to proximal electrodes, suggesting left atrial origin. During atrial entrainment pacing long return cycle was observed and distal coronary sinus pacing resulted in a 15 ms longer cycle length than the arrhythmia...
August 21, 2011: Orvosi Hetilap
C Jilek, G Hessling, S Ammar, S Fichtner, T Reents, H L Estner, J Wu, C Kolb, I Deisenhofer
BACKGROUND: Visualization of intracardiac catheters placed in predefined anatomic locations is a cornerstone for successful atrial fibrillation (AF) ablation. The 3D mapping system Carto3™ (Biosense Webster, Diamond Bar, CA, USA) released in 2009 provides the possibility to visualize more than one intracardiac catheter at a time. The aim of the study was to evaluate the feasibility and safety of the system, to show the learning curve, and to compare it to the established Ensite NavX™ system regarding procedural handling parameters...
March 2011: Herzschrittmachertherapie & Elektrophysiologie
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"