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Tachycardia ablation

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https://www.readbyqxmd.com/read/28449130/response-to-the-letter-to-the-editor-from-maddafari-et-al-about-reappraisal-and-new-observations-on-atrial-tachycardia-ablated-from-the-non-coronary-aortic-sinus-of-valsalva
#1
Shomu Bohora, Yash Lokhandwala, Eduardo Back Sternick, Robert H Anderson, Hein J J Wellens
No abstract text is available yet for this article.
April 24, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28444174/catheter-ablation-for-ventricular-tachycardia-in-patients-with-cardiac-sarcoidosis-a-systematic-review
#2
Nikolaos Papageorgiou, Rui Providência, Konstantinos Bronis, Dirk G Dechering, Neil Srinivasan, Lars Eckardt, Pier D Lambiase
Aims: Cardiac sarcoidosis (CS) is associated with a poor prognosis. Important features of CS include heart failure, conduction abnormalities, and ventricular arrhythmias. Ventricular tachycardia (VT) is often refractory to antiarrhythmic drugs (AAD) and immunosuppression. Catheter ablation has emerged as a treatment option for recurrent VT. However, data on the efficacy and outcomes of VT ablation in this context are sparse. Methods and results: A systematic search was performed on PubMed, EMBASE, and Cochrane database (from inception to September 2016) with included studies providing a minimum of information on CS patients undergoing VT ablation: age, gender, VT cycle length, CS diagnosis criteria, and baseline medications...
April 21, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28441823/-evaluation-of-a-low-dose-imaging-protocol-on-radiation-exposure-reduction-in-pediatric-supraventricular-tachycardia-ablation-procedure
#3
F Wang, Y Lu, C Yuan, J R Bai, H S Yang, L Wu
Objective: To evaluate the feasibility and efficiency of a low dose imaging protocol on reducing X-ray dose level in pediatric supraventricular tachycardia (SVT) ablation procedure. Method: Data were collected from 103 patients who underwent catheter ablation for SVT in Children's Hospital of Fudan University from January 2014 to October 2016 in terms of body weight, body surface area (BSA), SVT types, accessory pathway location, fluoroscopy time and the radiation dose (including AIR KERMA and dose area product) in a case observational study...
April 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28436586/transesophageal-and-invasive-electrophysiologic-evaluation-in-children-with-wolff-parkinson-white-pattern
#4
Serhat Koca, Feyza Aysenur Pac, Ahmet Vedat Kavurt, Serkan Cay, Ajda Mihcioglu, Dursun Aras, Serkan Topaloglu
BACKGROUND: Risk stratification for Wolff-Parkinson-White (WPW) pattern either by non-invasive or invasive tests is important to determine whether an ablation is necessary or not. The aim was to compare non-invasive tests and invasive studies in a pediatric WPW population. METHODS: A total of 71 WPW patients [median age 14 years (IQR 11 - 16 years); 43 male] underwent Holter monitoring, exercise stress test (EST), and transesophageal electrophysiological study (TEEPS)...
April 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28433554/catheter-ablation-to-prevent-sudden-cardiac-death
#5
Josef Kautzner, Petr Peichl
Since ventricular arrhythmias are a common cause of sudden cardiac death (SCD), treatment for ventricular arrhythmias is the target area of interest in research field. Among different means to prevent ventricular arrhythmias, catheter ablation (CA) has emerged as an effective therapeutic method. CA can decrease the likelihood of SCD in the following arrhythmia categories: 1) idiopathic ventricular fibrillation (VF) that is usually triggered by premature ventricular beats originating in the Purkinje fibres; 2) VF in subjects with structural heart disease, especially after myocardial infarction, that is triggered by premature ventricular beats from surviving Purkinje fibres; 3) Brugada syndrome in which modification of an epicardial substrate in the right ventricular outflow tract might be the most promising strategy; 4) recurrent monomorphic ventricular tachycardias in the setting of structural heart disease; 5) ventricular preexcitation in which CA appears to be a method of choice in high risk patients, regardless of the presence or absence of symptoms...
April 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28431884/percutaneous-ventricular-assist-device-for-circulatory-support-during-ablation-of-atrial-tachycardias-in-patients-with-fontan-circulation
#6
Astrid Hendriks, Lennart De Vries, Maarten Witsenburg, Sing-Chien Yap, Nicolas Van Mieghem, Tamas Szili-Torok
No abstract text is available yet for this article.
April 18, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28431725/intraoperative-three-dimensional-mapping%C3%A2-of-supraventricular-tachycardia-in-a-young-fontan%C3%A2-patient
#7
James C Perry, Matthew R Williams, Suzanne Shepard, Andras Bratincsak, Cynthia Murphy, Raghav Murthy, Mohammad Ebrahim, John J Lamberti
Preoperative tachycardia is uncommon before an initial Fontan procedure. Catheter intervention can risk complications in small patients. A patient with fetal tachycardia and double inlet left ventricle underwent Norwood and bidirectional Glenn procedures. She had persistent tachycardia. A three-dimensional electroanatomic mapping system was modified for the operative procedure; it was used to identify the arrhythmia substrate and cryoablate an atrioventricular nodal tachycardia. Mapping added 20 minutes to the operation...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28431063/left-ventricular-dysfunction-is-associated-with-frequent-premature-ventricular-complexes-and-asymptomatic-ventricular-tachycardia-in-children
#8
R A Bertels, L M Harteveld, L H Filippini, S A Clur, N A Blom
Aims: To assess the risk factors for left ventricular (LV) dysfunction in a paediatric population with idiopathic frequent premature ventricular contractions (PVCs) and asymptomatic ventricular tachycardias (VTs). Methods and Results: Paediatric patients with the diagnosis of idiopathic frequent PVCs and asymptomatic VTs were retrospectively evaluated. Frequent PVCs were defined as ≥5% on 24 h Holter recording. Left ventricular dysfunction was defined as a shortening fraction of ≤28%...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431060/catheter-ablation-vs-antiarrhythmic-drug-therapy-in-patients-with-symptomatic-atrioventricular-nodal-re-entrant-tachycardia-a-randomized-controlled-trial
#9
Demosthenes G Katritsis, Theodoros Zografos, George D Katritsis, Eleftherios Giazitzoglou, Vasilios Vachliotis, George Paxinos, A John Camm, Mark E Josephson
Aims: To conduct a randomized trial in order to guide the optimum therapy of symptomatic atrioventricular nodal re-entrant tachycardia (AVNRT). Methods and Results: Patients with at least one symptomatic episode of tachycardia per month and an electrophysiologic diagnosis of AVNRT were randomly assigned to catheter ablation or chronic antiarrhythmic drug (AAD) therapy with bisoprolol (5 mg od) and/or diltiazem (120-300 mg od). All patients were properly educated to treat subsequent tachycardia episodes with autonomic manoeuvres or a 'pill in the pocket' approach...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431051/safety-long-term-outcomes-and-predictors-of-recurrence-after-first-line-combined-endoepicardial-ventricular-tachycardia-substrate-ablation-in-arrhythmogenic-cardiomyopathy-impact-of-arrhythmic-substrate-distribution-pattern-a-prospective-multicentre-study
#10
Antonio Berruezo, Juan Acosta, Juan Fernández-Armenta, Alonso Pedrote, Alberto Barrera, Eduardo Arana-Rueda, Andrés Ignacio Bodegas, Ignasi Anguera, Luis Tercedor, Diego Penela, David Andreu, Rosario Jesus Perea, Susana Prat-González, Lluis Mont
Background: First-line endoepicardial ventricular tachycardia (VT) ablation has been proposed for patients with arrhythmogenic cardiomyopathy (AC). This study reports procedural safety, outcomes, and predictors of recurrence. Methods and Results: Forty-one consecutive patients [12 with left ventricle (LV) involvement, 7 left-dominant] underwent first-line endoepicardial VT substrate ablation. Standard bipolar and unipolar thresholds were used to define low-voltage areas (LVA)...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28429512/tailored-approach-for-management-of-ventricular-tachycardia-in-cardiac-sarcoidosis
#11
Sachin Yalagudri, Ngwe Zin Thu, Soumen Devidutta, Daljeet Saggu, Ajit Thachil, Sridevi Chennapragada, Calambur Narasimhan
INTRODUCTION: Treating ventricular tachycardia (VT) in patients with cardiac sarcoidosis (CS) is challenging as patients present in different phase of the disease (inflammatory, scar or sometimes both). A customized approach to treatment is required for better outcomes. We describe our experience in the management of VT in CS based on the phase of the disease. METHODS AND RESULTS: Patients were considered to have myocardial inflammation if there was an increased myocardial (18) Fluoro Deoxy Glucose (FDG) uptake in PET-CT scan of the chest (n=14)...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429499/atrial-fibrillation-patients-with-isolated-pulmonary-veins-is-sinus-rhythm-achievable
#12
Judit Szilágyi, Gregory M Marcus, Nitish Badhwar, Byron K Lee, Randall J Lee, Vasanth Vedantham, Zian H Tseng, Tomos Walters, Melvin Scheinman, Jeffrey Olgin, Edward P Gerstenfeld
BACKGROUND: The cornerstone of atrial fibrillation (AF) ablation is isolation of the pulmonary veins (PVs). Patients with recurrent AF undergoing repeat ablation usually have PV reconnection (PVr). The ablation strategy and outcome of patients undergoing repeat ablation who have persistent isolation of all PVs (PVi) at the time of repeat ablation is unknown. METHODS AND RESULTS: We studied consecutive patients with recurrent AF undergoing repeat ablation and compared patients with PVi to those with PVr...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28423126/chronic-atrial-fibrillation-ablation-with-harmonic-scalpel-during-mitral-valve-surgery
#13
Alexandre Visconti Brick, Domingo M Braile
Objective: To evaluate surgical treatment of chronic atrial fibrillation with ultrasound in patients with mitral valve disease, considering preoperative clinical characteristics of patients undergoing surgical procedure and follow-up in the immediate postoperative period, in hospital and up to 60 months after discharge. Methods: We studied 100 patients with chronic atrial fibrillation and mitral valve disease who underwent surgical treatment using ultrasound ablation...
January 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28419233/epicardial-ablation-may-not-be-necessary-in-all-patients-with-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-and-frequent-ventricular-tachycardia-author-s-reply
#14
Antonio Berruezo, Juan Acosta, Juan Fernández-Armenta
No abstract text is available yet for this article.
April 16, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28416984/the-inferior-displacement-of-the-his-bundle-and-fast-pathway-in-a-patient-with-common-type-atrioventricular-nodal-tachycardia-three-dimensional-computed-tomography-analysis
#15
Kunihiko Kiuchi, Koji Fukuzawa, Mori Shumpei, Tatsuya Nishii
A 66-year-old woman with palpitations was referred to our center for catheter ablation due to drug-refractory, common type atrioventricular nodal tachycardia (AVNRT). A selective slow pathway ablation was attempted. A fast junctional rhythm with transient ventriculoatrial block followed by transient prolongation of the A-H interval occurred immediately after the radiofrequency (RF) application at the coronary sinus ostium (CSOS) level. To assess the location of the fast pathway and His bundle, we sought to visualize the anatomy of the triangle of Koch (TOK) by three-dimensional computed tomography (CT)...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28407062/voltage-gradient-mapping-and-electrophysiologically-guided-cryoablation-in-children-with-avnrt
#16
Fabrizio Drago, Irma Battipaglia, Mario Salvatore Russo, Romolo Remoli, Vincenzo Pazzano, Gino Grifoni, Greta Allegretti, Massimo Stefano Silvetti
Aims: Recently, voltage gradient mapping of Koch's triangle to find low-voltage connections, or 'voltage bridges', corresponding to the anatomic position of the slow pathway, has been introduced as a method to ablate atrioventricular nodal reentry tachycardia (AVNRT) in children. Thus, we aimed to assess the effectiveness of voltage mapping of Koch's triangle, combined with the search for the slow potential signal in 'low-voltage bridges', to guide cryoablation of AVNRT in children. Methods and results: From June 2015 to May 2016, 35 consecutive paediatric patients (mean age 12...
April 12, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28402404/long-term-outcome-of-surgical-cryoablation-for-refractory-ventricular-tachycardia-in-patients-with-non-ischemic-cardiomyopathy
#17
Jackson J Liang, Brian P Betensky, Daniele Muser, Erica S Zado, Elad Anter, Nimesh D Desai, David J Callans, Rajat Deo, David S Frankel, Mathew D Hutchinson, David Lin, Michael P Riley, Robert D Schaller, Gregory E Supple, Pasquale Santangeli, Michael A Acker, Joseph E Bavaria, Wilson Y Szeto, Prashanth Vallabhajosyula, Francis E Marchlinski, Sanjay Dixit
Aims: Limited data exist on the long-term outcome of patients (pts) with non-ischemic cardiomyopathy (NICM) and ventricular tachycardia (VT) refractory to conventional therapies undergoing surgical ablation (SA). We aimed to investigate the long-term survival and VT recurrence in NICM pts with VT refractory to radiofrequency catheter ablation (RFCA) who underwent SA. Methods and results: Consecutive pts with NICM and VT refractory to RFCA who underwent SA were included...
April 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28402399/reappraisal-and-new-observations-on-atrial-tachycardia-ablated-from-the-non-coronary-aortic-sinus-of-valsalva
#18
Antonio Madaffari, Anett Große, Markus Frommhold, Santi Raffa, J Christoph Geller
No abstract text is available yet for this article.
April 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28401870/response-of-narrow-qrs-tachycardia-to-premature-atrial-extra-what-is-the-mechanism
#19
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Bharatraj Banavalikar, Sreevilasam Pushpangadhan Abhilash, Anees Thajudeen, Ajitkumar Valaparambil
A 60-year-old woman was referred for radiofrequency catheter ablation of narrow QRS tachycardia that was terminated with intravenous adenosine. Twelve-lead ECG showed no baseline preexcitation. Echocardiogram was essentially normal. The electrophysiological study showed a normal AH interval of 114 ms and HV interval of 48 ms during sinus rhythm. Anterograde study demonstrated no dual AV nodal physiology. Atrial pacing protocols easily and reproducibly induced narrow QRS tachycardia (Fig. 1A & 1B). Premature atrial extra (PAE) stimuli were delivered during the tachycardia (Fig...
November 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/28401455/what-is-the-appropriate-lesion-set-for-ablation-in-patients-with-persistent-atrial-fibrillation
#20
REVIEW
Jorge Romero, Carola Gianni, Andrea Natale, Luigi Di Biase
Special attention must be paid to detect, diagnose, and optimize management of reversible or treatable causes of long-standing persistent atrial fibrillation (LSPAF) such as obesity, obstructive sleep apnea (OSA), hypertension, hypo or hyperthyroidism, inflammatory and infectious diseases, and stress. Though, we strongly believe that the role of the pulmonary veins (PVs) is more pronounced in paroxysmal atrial fibrillation (AF) than in persistent AF, performing an adequate pulmonary vein isolation is still key in LSPAF...
May 2017: Current Treatment Options in Cardiovascular Medicine
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