Full Text Journal Articles by
Author Wendy S Tzou

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Systemic Diseases and Heart Block.

Syed Rafay A Sabzwari, Wendy S Tzou,

Systemic diseases can cause heart block owing to the involvement of the myocardium and thereby the conduction system. Younger patients (<60) with heart block should be evaluated for an underlying systemic disease. These disorders are classified into infiltrative, rheumatologic, endocrine, and hereditary neuromuscular degenerative diseases. Cardiac amyloidosis owing to amyloid fibrils ... Read more >>

Card Electrophysiol Clin (Cardiac electrophysiology clinics)
[2021, 13(4):721-740]

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Procedural and short-term results of electroanatomic-mapping-guided ganglionated plexus ablation by first-time operators: A multicenter study.

Tolga Aksu, Tom De Potter, Leah John, Jose Osorio, David Singh, Daniel Alyesh, Erkan Baysal, Kapil Kumar, Javad Mikaeili, Alexander Dal Forno, Kivanc Yalin, Baris Akdemir, Christopher E Woods, Jonathan Salcedo, Mahmoud Eftekharzadeh, Taylan Akgun, Sri Sundaram, Dursun Aras, Wendy S Tzou, Rakesh Gopinathannair, Jeffrey Winterfield, Dhiraj Gupta, Andre Davila,

<h4>Introduction</h4>Single-center observational studies have shown promising results with fragmented electrogram (FE)-guided ganglionated plexus (GP) ablation in patients with vagally mediated bradyarrhythmia (VMB). We aimed to compare the acute procedural characteristics during FE-guided GP ablation in patients with VMB performed by first-time operators and those of a single high-volume operator.<h4>Methods and ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2021, :]

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Increased incidence of cavotricuspid isthmus atrial flutter following slow pathway ablation.

Daniel L Varela, Michael A Rosenberg, Ryan T Borne, Amneet Sandhu, Matthew M Zipse, Wendy S Tzou, William H Sauer, Melvin M Scheinman, Duy T Nguyen,

<h4>Purpose</h4>The incidence of atrial flutter following radiofrequency ablation of supraventricular tachycardias is poorly understood. Ablation of atrioventricular nodal reentry tachycardia may place patients at risk of flutter because ablation of the slow pathway is in close proximity to the cavotricuspid isthmus. This study aims to evaluate the risk of atrial ... Read more >>

J Interv Card Electrophysiol (Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing)
[2021, :]

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Utility of Intracardiac Echocardiography for Guiding Ablation of Ventricular Tachycardia in Nonischemic Cardiomyopathy.

Christopher Barrett, Wendy S Tzou,

Intracardiac echocardiography (ICE) is a valuable tool in cardiac ablation procedures, especially in ablation of ventricular arrhythmias. The article details how ICE can aid in ablation of ventricular arrhythmias in nonischemic cardiomyopathy. ... Read more >>

Card Electrophysiol Clin (Cardiac electrophysiology clinics)
[2021, 13(2):337-343]

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Open surgical ablation of ventricular tachycardia: Utility and feasibility of contemporary mapping and ablation tools.

Megan Kunkel, Peter Rothstein, Peter Sauer, Matthew M Zipse, Amneet Sandhu, Alexis Z Tumolo, Ryan T Borne, Ryan G Aleong, Joseph C Cleveland, David Fullerton, Jay D Pal, Austin S Davies, Curtis Lane, Duy T Nguyen, William H Sauer, Wendy S Tzou,

<h4>Background</h4>Ventricular tachycardia (VT) catheter ablation success may be limited when transcutaneous epicardial access is contraindicated. Surgical ablation (SurgAbl) is an option, but ablation guidance is limited without simultaneously acquired electrophysiological data.<h4>Objective</h4>We describe our SurgAbl experience utilizing contemporary electroanatomic mapping (EAM) among patients with refractory VT storm.<h4>Methods</h4>Consecutive patients with recurrent VT ... Read more >>

Heart Rhythm O2 (Heart rhythm O2)
[2021, 2(3):271-279]

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A Disruptive Technology: Determining Need for Permanent Pacing After TAVR.

Amneet Sandhu, Wendy S Tzou,

<h4>Purpose of review</h4>Transcatheter aortic valve replacement (TAVR) has changed the paradigm for management of severe aortic stenosis. Despite evolution of TAVR over the past 2 decades, conduction system disturbances remain a concern post-TAVR. In this review, we describe (1) permanent pacemaker (PP) implant rates associated with TAVR, (2) risk factors ... Read more >>

Curr Cardiol Rep (Current cardiology reports)
[2021, 23(5):53]

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Amiodarone during ventricular tachycardia ablation: A total eclipse of the heart?

José M Sanchez, Wendy S Tzou,

Heart Rhythm (Heart rhythm)
[2021, 18(6):894-895]

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Fasciculoventricular and atrioventricular accessory pathways in patients with Danon disease and preexcitation: A multicenter experience.

Douglas Darden, Jonathan C Hsu, Wendy S Tzou, Johannes C von Alvensleben, Mary Brooks, Kurt S Hoffmayer, Michela Brambatti, William H Sauer, Gregory K Feld, Eric Adler,

<h4>Background</h4>Studies have suggested that a fasciculoventricular pathway (FVP) may be the cause of preexcitation in patients with Danon disease, a rare X-linked dominant genetic disorder of hypertrophic cardiomyopathy.<h4>Objective</h4>The purpose of this study was to describe the prevalence of ventricular preexcitation on resting 12-lead electrocardiogram (ECG) in patients with Danon disease ... Read more >>

Heart Rhythm (Heart rhythm)
[2021, 18(7):1194-1202]

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Open-irrigation for radiofrequency ablation for atrial fibrillation: Worth its salt?

Lukasz Cerbin, Wendy S Tzou,

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2021, 32(4):982-983]

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Catheter ablation of ventricular tachycardia in patients with prior cardiac surgery: An analysis from the International VT Ablation Center Collaborative Group.

Martin Aguilar, Usha B Tedrow, Wendy S Tzou, Roderick Tung, David S Frankel, Pasquale Santangeli, Marmar Vaseghi, T Jared Bunch, Luigi Di Biase, Venkatakrishna N Tholakanahalli, Dhanunjaya Lakkireddy, Timm Dickfeld, J Peter Weiss, Nilesh Mathuria, Pasquale Vergara, Shiro Nakahara, Jason S Bradfield, J David Burkhardt, William G Stevenson, David J Callans, Paolo Della Bella, Andrea Natale, Kalyanam Shivkumar, Francis E Marchlinski, William H Sauer,

<h4>Introduction</h4>Patients with prior cardiac surgery may represent a subgroup of patients with ventricular tachycardia (VT) that may be more difficult to control with catheter ablation.<h4>Methods</h4>We evaluated 1901 patients with ischemic and nonischemic cardiomyopathy who underwent VT ablation at 12 centers. Clinical characteristics and VT radiofrequency ablation procedural outcomes were assessed ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2021, 32(2):409-416]

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The Evolution of Ventricular Scar Substrate Assessment by Using High-Resolution Mapping Platforms: Ongoing Quest for "Ground Truth".

Cory M Tschabrunn, Wendy S Tzou,

JACC Clin Electrophysiol (JACC. Clinical electrophysiology)
[2021, 7(2):206-209]

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A novel approach to electrocardiography in the prone patient.

José M Sanchez, Morteza Farasat, Andrew E Levy, Ivor S Douglas, Brian L Stauffer, Wendy S Tzou, J Jason West,

Heart Rhythm O2 (Heart rhythm O2)
[2021, 2(1):107-109]

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2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias: Executive summary.

Edmond M Cronin, Frank M Bogun, Philippe Maury, Petr Peichl, Minglong Chen, Narayanan Namboodiri, Luis Aguinaga, Luiz Roberto Leite, Sana M Al-Khatib, Elad Anter, Antonio Berruezo, David J Callans, Mina K Chung, Phillip Cuculich, Andre d'Avila, Barbara J Deal, Paolo Della Bella, Thomas Deneke, Timm-Michael Dickfeld, Claudio Hadid, Haris M Haqqani, G Neal Kay, Rakesh Latchamsetty, Francis Marchlinski, John M Miller, Akihiko Nogami, Akash R Patel, Rajeev Kumar Pathak, Luis C Saenz Morales, Pasquale Santangeli, John L Sapp, Andrea Sarkozy, Kyoko Soejima, William G Stevenson, Usha B Tedrow, Wendy S Tzou, Niraj Varma, Katja Zeppenfeld,

Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and ... Read more >>

J Interv Card Electrophysiol (Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing)
[2020, 59(1):81-133]

Cited: 1 time

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Epicardial Ablation Biophysics and Novel Radiofrequency Energy Delivery Techniques.

Rachel Debenham, Wendy S Tzou,

Important physiologic and anatomic differences exist between the epicardium and endocardium, particularly of the ventricles, and these differences affect ablation biophysics. Absence of passive convective effects conferred by circulating blood as well as the presence of epicardial fat and vessels and absence of intracavitary ridges and structures affect ablation lesion ... Read more >>

Card Electrophysiol Clin (Cardiac electrophysiology clinics)
[2020, 12(3):401-408]

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Uncovering a unique path: Antidromic AVRT utilizing a left anteroseptal Mahaim-like accessory pathway.

Amneet Sandhu, Wendy S Tzou, Ryan T Borne, Matthew M Zipse, Duy T Nguyen, William H Sauer,

A 40-year-old man presented to our emergency department 2 hours after onset of shortness of breath, palpitations, and presyncope secondary to an adenosine-responsive wide complex tachycardia. Electrophysiology study was diagnostic for antidromic atrioventricular (AV) reentrant tachycardia utilizing a muscular connection from the anterior interventricular vein to the left ventricle with Mahaim-like ... Read more >>

Pacing Clin Electrophysiol (Pacing and clinical electrophysiology : PACE)
[2021, 44(1):185-188]

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European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) expert consensus on risk assessment in cardiac arrhythmias: use the right tool for the right outcome, in the right population.

Jens Cosedis Nielsen, Yenn-Jiang Lin, Marcio Jansen de Oliveira Figueiredo, Alireza Sepehri Shamloo, Alberto Alfie, Serge Boveda, Nikolaos Dagres, Dario Di Toro, Lee L Eckhardt, Kenneth Ellenbogen, Carina Hardy, Takanori Ikeda, Aparna Jaswal, Elizabeth Kaufman, Andrew Krahn, Kengo Kusano, Valentina Kutyifa, Han S Lim, Gregory Y H Lip, Santiago Nava-Townsend, Hui-Nam Pak, Gerardo Rodríguez Diez, William Sauer, Anil Saxena, Jesper Hastrup Svendsen, Diego Vanegas, Marmar Vaseghi, Arthur Wilde, T Jared Bunch, , Alfred E Buxton, Gonzalo Calvimontes, Tze-Fan Chao, Lars Eckardt, Heidi Estner, Anne M Gillis, Rodrigo Isa, Josef Kautzner, Philippe Maury, Joshua D Moss, Gi-Byung Nam, Brian Olshansky, Luis Fernando Pava Molano, Mauricio Pimentel, Mukund Prabhu, Wendy S Tzou, Philipp Sommer, Janice Swampillai, Alejandro Vidal, Thomas Deneke, Gerhard Hindricks, Christophe Leclercq,

Heart Rhythm (Heart rhythm)
[2020, 17(9):e269-e316]

Cited: 2 times

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European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) expert consensus on risk assessment in cardiac arrhythmias: use the right tool for the right outcome, in the right population.

Jens Cosedis Nielsen, Yenn-Jiang Lin, Marcio Jansen de Oliveira Figueiredo, Alireza Sepehri Shamloo, Alberto Alfie, Serge Boveda, Nikolaos Dagres, Dario Di Toro, Lee L Eckhardt, Kenneth Ellenbogen, Carina Hardy, Takanori Ikeda, Aparna Jaswal, Elizabeth Kaufman, Andrew Krahn, Kengo Kusano, Valentina Kutyifa, Han S Lim, Gregory Y H Lip, Santiago Nava-Townsend, Hui-Nam Pak, Gerardo Rodríguez Diez, William Sauer, Anil Saxena, Jesper Hastrup Svendsen, Diego Vanegas, Marmar Vaseghi, Arthur Wilde, T Jared Bunch, , Alfred E Buxton, Gonzalo Calvimontes, Tze-Fan Chao, Lars Eckardt, Heidi Estner, Anne M Gillis, Rodrigo Isa, Josef Kautzner, Philippe Maury, Joshua D Moss, Gi-Byung Nam, Brian Olshansky, Luis Fernando Pava Molano, Mauricio Pimentel, Mukund Prabhu, Wendy S Tzou, Philipp Sommer, Janice Swampillai, Alejandro Vidal, Thomas Deneke, Gerhard Hindricks, Christophe Leclercq,

Europace (Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology)
[2020, 22(8):1147-1148]

Cited: 13 times

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European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) expert consensus on risk assessment in cardiac arrhythmias: use the right tool for the right outcome, in the right population.

Jens Cosedis Nielsen, Yenn-Jiang Lin, Marcio Jansen de Oliveira Figueiredo, Alireza Sepehri Shamloo, Alberto Alfie, Serge Boveda, Nikolaos Dagres, Dario Di Toro, Lee L Eckhardt, Kenneth Ellenbogen, Carina Hardy, Takanori Ikeda, Aparna Jaswal, Elizabeth Kaufman, Andrew Krahn, Kengo Kusano, Valentina Kutyifa, Han S Lim, Gregory Y H Lip, Santiago Nava-Townsend, Hui-Nam Pak, Gerardo Rodríguez Diez, William Sauer, Anil Saxena, Jesper Hastrup Svendsen, Diego Vanegas, Marmar Vaseghi, Arthur Wilde, T Jared Bunch, Alfred E Buxton, Gonzalo Calvimontes, Tze-Fan Chao, Lars Eckardt, Heidi Estner, Anne M Gillis, Rodrigo Isa, Josef Kautzner, Philippe Maury, Joshua D Moss, Gi-Byung Nam, Brian Olshansky, Luis Fernando Pava Molano, Mauricio Pimentel, Mukund Prabhu, Wendy S Tzou, Philipp Sommer, Janice Swampillai, Alejandro Vidal, Thomas Deneke, Gerhard Hindricks, Christophe Leclercq,

J Arrhythm (Journal of arrhythmia)
[2020, 36(4):553-607]

Cited: 7 times

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A multicenter trial of a shared DECision Support Intervention for Patients offered implantable Cardioverter-DEfibrillators: DECIDE-ICD rationale, design, Medicare changes, and pilot data.

Bryan C Wallace, Larry A Allen, Christopher E Knoepke, Russell E Glasgow, Carmen L Lewis, Diane L Fairclough, Laura J Helmkamp, Monica D Fitzgerald, Wendy S Tzou, Daniel B Kramer, Paul D Varosy, Sanjaya K Gupta, John M Mandrola, Scott C Brancato, Pamela N Peterson, Daniel D Matlock,

Shared decision making (SDM) facilitates delivery of medical therapies that are in alignment with patients' goals and values. Medicare national coverage decision for several interventions now includes SDM mandates, but few have been evaluated in nationwide studies. Based upon a detailed needs assessment with diverse stakeholders, we developed pamphlet and ... Read more >>

Am Heart J (American heart journal)
[2020, 226:161-173]

Cited: 0 times

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Radiofrequency Catheter Ablation of Atrial Fibrillation: May the Force (and Stability) Be With You, Always.

Wendy S Tzou, William H Sauer,

JACC Clin Electrophysiol (JACC. Clinical electrophysiology)
[2020, 6(2):153-156]

Cited: 0 times

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2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias: executive summary.

Edmond M Cronin, Frank M Bogun, Philippe Maury, Petr Peichl, Minglong Chen, Narayanan Namboodiri, Luis Aguinaga, Luiz Roberto Leite, Sana M Al-Khatib, Elad Anter, Antonio Berruezo, David J Callans, Mina K Chung, Phillip Cuculich, Andre d'Avila, Barbara J Deal, Paolo Della Bella, Thomas Deneke, Timm-Michael Dickfeld, Claudio Hadid, Haris M Haqqani, G Neal Kay, Rakesh Latchamsetty, Francis Marchlinski, John M Miller, Akihiko Nogami, Akash R Patel, Rajeev Kumar Pathak, Luis C Saenz Morales, Pasquale Santangeli, John L Sapp, Andrea Sarkozy, Kyoko Soejima, William G Stevenson, Usha B Tedrow, Wendy S Tzou, Niraj Varma, Katja Zeppenfeld,

Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and ... Read more >>

Europace (Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology)
[2020, 22(3):450-495]

Cited: 2 times

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Impact of epicardial adipose tissue and catheter ablation strategy on biophysical parameters and ablation lesion characteristics.

Matthew M Zipse, Justin A Edward, Lijun Zheng, Wendy S Tzou, Ryan T Borne, William H Sauer, Duy T Nguyen,

<h4>Background</h4>Epicardial adipose (EA) tissue may limit effective radiofrequency ablation (RFA).<h4>Objectives</h4>We sought to evaluate the lesion formation of different ablation strategies on ventricular myocardium with overlying EA.<h4>Methods</h4>Bovine myocardium with EA was placed in a circulating saline bath in an ex vivo model. Open-irrigated (OI) RFA was performed, parallel to the myocardium, ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2020, 31(5):1114-1124]

Cited: 0 times

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2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias: Executive summary.

Edmond M Cronin, Frank M Bogun, Philippe Maury, Petr Peichl, Minglong Chen, Narayanan Namboodiri, Luis Aguinaga, Luiz Roberto Leite, Sana M Al-Khatib, Elad Anter, Antonio Berruezo, David J Callans, Mina K Chung, Phillip Cuculich, Andre d'Avila, Barbara J Deal, Paolo Della Bella, Thomas Deneke, Timm-Michael Dickfeld, Claudio Hadid, Haris M Haqqani, G Neal Kay, Rakesh Latchamsetty, Francis Marchlinski, John M Miller, Akihiko Nogami, Akash R Patel, Rajeev Kumar Pathak, Luis C Saenz Morales, Pasquale Santangeli, John L Sapp, Andrea Sarkozy, Kyoko Soejima, William G Stevenson, Usha B Tedrow, Wendy S Tzou, Niraj Varma, Katja Zeppenfeld,

Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and ... Read more >>

J Arrhythm (Journal of arrhythmia)
[2020, 36(1):1-58]

Cited: 3 times

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Looking Near and Far: Utility of Multielectrode Mapping in Redefining Voltage Standards.

Wendy S Tzou, Cory M Tschabrunn,

JACC Clin Electrophysiol (JACC. Clinical electrophysiology)
[2019, 5(10):1141-1143]

Cited: 0 times

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Bipolar radiofrequency ablation creates different lesion characteristics compared to simultaneous unipolar ablation.

Duy T Nguyen, Lijun Zheng, Matthew M Zipse, Ryan T Borne, Wendy S Tzou, Blake Fleeman, William H Sauer,

<h4>Introduction</h4>Both bipolar and simultaneous radiofrequency ablation (bRFA, simRFA) have been used to treat thick midmyocardial substrate as well as during circular, multipolar ablation between shorter distances.<h4>Objectives</h4>We sought to evaluate the biophysical parameters of simRFA, sequential unipolar RFA (seqRFA), and bRFA.<h4>Methods</h4>Bovine myocardium was placed in a circulating saline bath. To simulate ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2019, 30(12):2960-2967]

Cited: 1 time

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