Read by QxMD icon Read

VT ablation

L M Wu, J R Bao, L H Zheng, G Chen, L G Ding, Y Yao
Objective: To evaluate the results of catheter ablation of ventricular tachycardia (VT) via direct ventricle puncture access in patients without traditional approach. Methods: Two idiopathic left fasicular VT patients with mechanical aortic and mitrial valve repalcement and 1 patient with right ventricular originated VT post mechanical tricuspid valve repalcement from March 2010 to July 2012 in Fuwai hospital were enrolled in this study. For left fasicular VT patients, catheter ablation was performed using transapical left ventricular access via minithoracotomy...
March 24, 2018: Zhonghua Xin Xue Guan Bing za Zhi
Teresa Oloriz, Francesca Baratto, Nicola Trevisi, Melania Barbaro, Caterina Bisceglia, Giuseppe D'Angelo, Miki Yamase, Gabriele Paglino, Andrea Radinovic, Paolo Della Bella
BACKGROUND: Catheter ablation of ventricular tachycardia (VT) is effective to prevent arrhythmia episode-related implantable cardioverter defibrillator shocks. However, recurrences in noninducible patients at programmed ventricular stimulation (PVS) are substantial. METHODS AND RESULTS: From May 2013 to September 2015, 218 PVSs were performed 6 days (5-7) after ablation (186 noninvasive programmed stimulations and 32 invasive PVS) in 210 consecutive patients (ischemic, 48%; median left ventricular ejection fraction, 37%; syncope, 35% with trauma associated 6%), while patients were awake and under β-blocker therapy...
March 2018: Circulation. Arrhythmia and Electrophysiology
Andrea Di Marco, Teresa Oloriz Sanjuan, Gabriele Paglino, Francesca Baratto, Pasquale Vergara, Caterina Bisceglia, Nicola Trevisi, Simone Sala, Alessandra Marzi, Simone Gulletta, Manuela Cireddu, Ignasi Anguera, Paolo Della Bella
INTRODUCTION: Late potentials (LP) abolition is recognized as an effective strategy for substrate ablation of ventricular tachycardia (VT). The presence of a chronic total occlusion in a coronary artery responsible for a previous myocardial infarction (infarct related artery CTO, IRA-CTO) is emerging as a predictor of ventricular arrhythmias and VT recurrence after ablation. We sought to analyze the effects of LP abolition, focusing on the high-risk sub-group of patients with IRA-CTO...
March 15, 2018: Journal of Cardiovascular Electrophysiology
Naoko Yamaguchi, Kentaro Yamakawa, Pradeep S Rajendran, Tatsuo Takamiya, Marmar Vaseghi
BACKGROUND: Neuraxial modulation with cardiac sympathetic denervation (CSD) can potentially reduce burden of ventricular tachy-arryhthmias (VT). Despite catheter ablation and CSD, however, VT can recur in patients with cardiomyopathy and the role of vagal nerve stimulation (VNS) in this setting is unclear. OBJECTIVE: The purpose of this study was to evaluate electrophysiological effects of VNS after CSD in normal and infarcted hearts. METHODS: In 10 normal and 6 infarcted pigs, electrophysiological and hemodynamic parameters were evaluated before and during intermittent VNS pre-CSD (bilateral stellectomy and T2-T4 thoracic ganglia removal) as well as post-CSD...
March 9, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Prabhpreet Singh, Amit Noheria
Invasive electrophysiology (EP) mapping and catheter ablation has increasingly become the standard of care for many cardiac arrhythmias like supraventricular tachycardias, atrial fibrillation, premature ventricular complexes (PVC), and monomorphic ventricular tachycardia. In this review, we discuss the recent progress made in the mapping and ablation of ventricular fibrillation (VF). Ventricular activation during VF is apparently disorganized, making mapping and interpretation difficult. Prolonged mapping during VF would require mechanical circulatory support as VF causes complete hemodynamic collapse...
March 6, 2018: Current Treatment Options in Cardiovascular Medicine
Shuanglun Xie, Benoit Desjardins, Maciej Kubala, Jackson Liang, Jiandu Yang, Rob J van der Geest, Robert Schaller, Michael Riley, David Callans, Erica Zado Pac, Francis Marchlinski, Saman Nazarian
BACKGROUND: Criteria for identification of anatomic ventricular tachycardia (VT) substrates in arrhythmogenic right ventricular cardiomyopathy (ARVC) on late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) are unclear. OBJECTIVE: We sought to define a) the association of regional RV epicardial voltage amplitude with the distribution of LGE, and b) appropriate image signal intensity (SI) thresholds for VT substrate identification, in ARVC. METHODS: Pre-procedural LGE-CMR and epicardial electrogram mapping were performed in 10 ARVC patients...
March 1, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Mathew D Hutchinson, Hyon-He K Garza
As we have witnessed in other arenas of catheter-based therapeutics, ventricular tachycardia (VT) ablation has become increasingly anatomical in its execution. Multi-modality imaging provides anatomical detail in substrate characterization, which is often complex in nonischemic cardiomyopathy patients. Patients with intramural, intraseptal, and epicardial substrates provide challenges in delivering effective ablation to the critical arrhythmia substrate due to the depth of origin or the presence of adjacent critical structures...
February 24, 2018: Current Treatment Options in Cardiovascular Medicine
Jason S Bradfield, Olujimi A Ajijola, Marmar Vaseghi, Kalyanam Shivkumar
Ventricular arrhythmias are responsible for hundreds of thousands of deaths every year. Catheter ablation of ventricular tachycardia (VT) is an essential component of the management of these life-threatening arrhythmias. However, in many patients, despite medical and interventional therapy, VT recurs. Further, some VT substrates (mid-myocardial, left ventricular summit, intra-septal) are not easily targeted, due to limitations of currently available technology. In certain clinical settings, ventricular fibrillation (VF) episodes that have premature ventricular contraction (PVC) triggers can also be targeted with catheter ablation...
February 14, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Arun Gopalakrishnan, Ajitkumar Valaparambil
Premature Ventricular Contraction (PVC)/ventricular tachycardia (VT) with left bundle branch block (LBBB) morphology and inferior axis has been described classically to originate from the right ventricular outflow tract (RVOT). Some uncommon sites of idiopathic ventricular arrhythmia (VA) origins have been revealed including tricuspid annulus (TA) and right ventricular (RV) inflow free wall region. We present a series of two cases who have undergone electrophysiological study and successful radiofrequency ablation of frequent monomorphic PVCs with LBBB pattern originating from relatively uncommon sites of RV - TA and RV inflow free wall region...
February 13, 2018: Indian Pacing and Electrophysiology Journal
Michael Wolf, Frédéric Sacher, Hubert Cochet, Takeshi Kitamura, Masateru Takigawa, Seigo Yamashita, Konstantinos Vlachos, Ghassen Cheniti, Antonio Frontera, Ruairidh Martin, Nathaniel Thompson, Grégoire Massoullié, Anna Lam, Claire Martin, Florent Collot, Josselin Duchateau, Thomas Pambrun, Arnaud Denis, Nicolas Derval, Mélèze Hocini, Michel Haïssaguerre, Pierre Jaïs
BACKGROUND: Long-term results of substrate modification for ablation of ventricular tachycardia (VT) have not been reported. We report long-term outcomes of substrate elimination targeting local abnormal ventricular activities (LAVA) for post-myocardial infarction VT. METHODS AND RESULTS: One hundred fifty-nine consecutive patients undergoing first ablation were included (65±11 years, 92% implantable cardioverter defibrillators, 54% storms, and 73% appropriate shocks)...
February 2018: Circulation. Arrhythmia and Electrophysiology
Fei Lü, Wei Huang, David G Benditt
BACKGROUND: Current transcatheter ablation of ventricular tachycardia (VT) techniques is limited in part by its invasive nature and superficial depth of ablation lesions. OBJECTIVES: This study was aimed at evaluating the feasibility of targeted ablation of cardiac tissues using high-intensity focused ultrasound (HIFU) as a potential means for non-invasive ablation of VT. METHODS: Ablation of ventricular myocardium was performed in anesthetized closed-chest dogs using a HIFU therapeutic system that is currently used clinically for ablation of human solid tumors...
February 12, 2018: Journal of Cardiovascular Electrophysiology
David Soto-Iglesias, Juan Acosta, Diego Penela, Juan Fernández-Armenta, Mario Cabrera, Mikel Martínez, Francesca Vassanelli, Alejandro Alcaine, Markus Linhart, Beatriz Jáuregui, Elena Efimova, Rosario J Perea, Susana Prat-González, José T Ortiz-Pérez, Xavier Bosch, Luis Mont, Oscar Camara, Antonio Berruezo
BACKGROUND: Patients with transmural myocardial infarction (MI) who undergo endocardial-only substrate ablation are at an increased risk of ventricular tachycardia (VT) recurrence. Late gadolinium-enhanced cardiac magnetic resonance (LGE-CMR) could be used to assess infarct transmurality (IT). However, the degree of IT associated to epicardial arrhythmogenic substrate (AS) has not been determined. OBJECTIVE: To determine the degree of IT observed in LGE-CMR and multi-detector computed tomography (MDCT) that predicts the presence of epicardial AS...
February 7, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Alexander Fürnkranz, Hisaki Makimoto
Idiopathic ventricular tachycardia: Frequent monomorphic premature ventricular contractions or non-sustained ventricular tachycardia without underlying structural heart disease is not a rare condition and may cause significant symptoms. A subgroup of patients develops IVT-associated cardiomyopathy. Current ESC guidelines recommend primary catheter ablation in symptomatic patients with right ventricular outflow tract IVT. Catheter ablation is also recommended in symptomatic patients with a left ventricular outflow tract (or other rare) origin, if antiarrhythmic drugs are ineffective or not desired...
February 2018: Deutsche Medizinische Wochenschrift
David F Briceño, Tanush Gupta, Jorge Romero, Dhaval Kolte, Sahil Khera, Pedro A Villablanca, An Tran, Sanghamitra Mohanty, Chintan Trivedi, Prasant Mohanty, Carola Gianni, Soo G Kim, Mario Garcia, Gregg C Fonarow, Deepak L Bhatt, Andrea Natale, Luigi Di Biase
INTRODUCTION: Monomorphic ventricular tachycardia (VT) is an important cause of morbidity and mortality. Use and outcome data of catheter ablation for VT in non-ischemic cardiomyopathy (NICM) are limited. METHODS AND RESULTS: We obtained data from the 2003-2014 National Inpatient Sample databases. We used propensity score matching to compare patients undergoing catheter ablation versus medical therapy of VT related to NICM, and described the temporal trends in utilization and in-hospital outcomes of catheter ablation of VT in patients with NICM in the United States...
February 5, 2018: Journal of Cardiovascular Electrophysiology
Dirk Prochnau, Matthias Hoyme
Electrical storm (ES) represents a critical state of electrical instability. We describe a patient with coronary artery disease, mechanical aortic valve replacement, and reduced left ventricular function with recurrent ICD shocks. Despite medical treatment with beta-blocker and amiodarone, and after successful ablation of different VT morphologies in combination with substrate modification, ES could not be controlled. We performed renal denervation (RDN) to reduce arrhythmic burden. Thereafter, patient remained free from sustained and non-sustained VTs at 6-month follow-up...
January 30, 2018: Journal of Electrocardiology
Kaveh Hosseini, Mansour Jahangiri, Ali Vasheghani Farahani
Background: Brugada syndrome (BrS) is an inherited channelopathy, which is associated with sudden cardiac death due to rapid polymorphic VT or VF. There is no definite consensus regarding the management of asymptomatic patients. Some experts advocate close follow-up; others propose the programmed stimulation for risk stratification. We aimed to evaluate the benefit of complete atrial and ventricular stimulation in patients with BrS and palpitation. Case Presentation: A 30-year-old man was admitted to our hospital because of a family history of sudden cardiac death (SCD) at age less than 45 years...
2018: Caspian Journal of Internal Medicine
A W G J Oomen, L R C Dekker, A Meijer
AIMS: This study was designed to gain insight into the patient characteristics, results and possible complications of ablation procedures for symptomatic idiopathic premature ventricular complexes (PVC) and idiopathic ventricular tachycardia (VT). METHODS: Data were collected from all patients who underwent radiofrequency catheter ablation for symptomatic PVCs and idiopathic VT in the Catharina Hospital between 1 January 2011 and 31 December 2015. The procedural endpoint was elimination or non-inducibility of the clinical arrhythmia...
January 30, 2018: Netherlands Heart Journal
Michael Ghannam, Hubert Cochet, Pierre Jais, Maxime Sermesant, Smita Patel, Konstantinos C Siontis, Fred Morady, Frank Bogun
BACKGROUND: Myocardial wall thickness (WT) in patients with a prior myocardial infarction has been used to indicate scarring. However, the correlation of WT with sites critical to ventricular tachycardia (VT) has not been previously investigated. The purpose of this study was to correlate electroanatomic mapping data obtained during VT ablation with WT determined by cardiac computed tomography (CT). METHODS AND RESULTS: Cardiac CTs were performed in 15 consecutive patients (mean age 63±10 years, 86% male, left ventricular ejection fraction 27±12%) with a prior infarct referred for VT ablation...
January 30, 2018: Journal of Cardiovascular Electrophysiology
Petra Maagh, Arnd Christoph, Markus Sebastian Müller, Henning Dopp, Gunnar Plehn, Axel Meissner
PURPOSE: This study was conducted with the purpose of determining whether or not the potential technical advantages of multi-electrode mapping catheters in catheter ablation (CA) of ventricular tachycardia (VT) result in any relevant clinical benefit for VT patients. METHODS: A single-center VT study, having taken place from 2012 to 2014 using a standard 3.5-mm catheter (Thermocool SF® group 1) and from 2014 to 2016 using a 1-mm multi-electrode-mapping catheter (PentaRay® group 2), was conducted...
January 22, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Marc W Deyell, Christian Steinberg, Steve Doucette, Ratika Parkash, Isabelle Nault, Chris Gray, Vidal Essebag, Martin Gardner, Laurence D Sterns, Jeff S Healey, Tomasz Hruczkowski, Lena Rivard, Peter Leong-Sit, Pablo B Nery, John L Sapp
INTRODUCTION: In patients with ischemic heart disease and ventricular tachycardia (VT) refractory to high dose amiodarone, the two most common therapeutic options are adjunctive mexiletine therapy or catheter ablation. There is little existing data on the efficacy of these strategies. We examined the relative efficacy of adjunctive mexiletine and catheter ablation among patients enrolled in the VANISH trial. METHODS: All subjects enrolled in the VANISH trial who had VT refractory to high dose (≥ 300 mg daily) amiodarone at baseline were included...
January 22, 2018: Journal of Cardiovascular Electrophysiology
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"