J. Bradfield

发表

Electrocardiographic Right Ventricular Strain Precedes Hypoxic Pulseless Electrical Activity Cardiac Arrests: Looking Beyond Pulmonary Embolism.

Xiao Hu, N. Boyle, K. Shivkumar, 2020, Resuscitation.

Interventions to decrease the morbidity and mortality associated with implantable cardioverter-defibrillator shocks

K. Shivkumar, J. Bradfield, E. Buch, 2012, Current opinion in critical care.

Arrhythmogenic Inflammatory Cardiomyopathy: A Review.

J. Bradfield, Anthony Li, Brenton S. Bauer, 2018, Arrhythmia & electrophysiology review.

Managing patients with ICD shocks and programming tachycardia therapies during acute heart failure syndromes

N. Boyle, K. Shivkumar, J. Bradfield, 2011, Heart Failure Reviews.

Prevalence of Chagas Disease in a U.S. Population of Latin American Immigrants with Conduction Abnormalities on Electrocardiogram

J. Bradfield, M. Traina, S. Meymandi, 2017, PLoS neglected tropical diseases.

Pattern Breaks on the Surface ECG: Can We Anticipate a Long Day Ahead?

K. Shivkumar, J. Bradfield, 2017, Journal of cardiovascular electrophysiology.

Directional Influences of Ventricular Activation on Myocardial Scar Characterization: Voltage Mapping With Multiple Wavefronts During Ventricular Tachycardia Ablation

Kalyanam Shivkumar, Roderick Tung, Mark E Josephson, 2016, Circulation. Arrhythmia and electrophysiology.

The “Art” of Ventricular Tachycardia Ablation

J. Bradfield, Justin Hayase, 2018, The Journal of innovations in cardiac rhythm management.

Tissue voltage discordance during tachycardia versus sinus rhythm: implications for catheter ablation.

K. Ellenbogen, J. Gornbein, J. Okhovat, 2013, Heart rhythm.

Value of cardiac MRI for evaluation of chronic Chagas disease cardiomyopathy.

J. Bradfield, S. Lee-Felker, E. Felker, 2016, Clinical radiology.

Safety and efficacy of renal denervation as a novel treatment of ventricular tachycardia storm in patients with cardiomyopathy.

T. Dickfeld, N. Boyle, S. Mittal, 2014, Heart rhythm.

Renal denervation for refractory ventricular arrhythmias.

K. Shivkumar, J. Bradfield, M. Vaseghi, 2014, Trends in cardiovascular medicine.

Anatomy for Ventricular Tachycardia Ablation in Structural Heart Disease.

K. Shivkumar, J. Bradfield, 2017, Cardiac electrophysiology clinics.

Value of a Joint Cardiac Surgery—Cardiac Electrophysiology Approach to Lead Extraction

N. Boyle, F. Esmailian, J. Bradfield, 2015, Journal of cardiac surgery.

Anatomy of the Pericardial Space.

S. Mori, K. Shivkumar, J. Bradfield, 2020, Cardiac electrophysiology clinics.

Cardiac Resynchronization Therapy–Induced Proarrhythmia: Understanding Preferential Conduction Within Myocardial Scars

K. Shivkumar, J. Bradfield, 2014, Circulation. Arrhythmia and electrophysiology.

Low Referral Rate for Prophylactic Implantation of Cardioverter‐Defibrillators in a Tertiary Care Medical Center

J. Bradfield, A. Warner, M. Bersohn, 2009, Pacing and clinical electrophysiology : PACE.

Catheter Ablation of Atrial Fibrillation Without Radiation Exposure Using A 3D Mapping System.

F. Gaita, M. Scaglione, J. Bradfield, 2015, Journal of atrial fibrillation.

Effect of Exposure to Cigarette Smoke on Carotid Artery Intimal Thickening: The Role of Inducible NO Synthase

S. Kaul, P. Shah, J. Bradfield, 2004, Arteriosclerosis, thrombosis, and vascular biology.

Acupuncture Needle in the Heart.

J. Bradfield, M. Traina, R. Wachsner, 2017, Texas Heart Institute journal.

Ventricular Tachycardia Ablation in the Presence of Left Ventricular Thrombus: Safety and Efficacy

N. Boyle, K. Shivkumar, Duc H. Do, 2016, Journal of cardiovascular electrophysiology.

Ventricular Arrhythmia in the Left Ventricular Assist Device Patient

J. Bradfield, Peter Hanna, 2021, JACC. Case reports.

Clinical Reviews: Clinical Arrhythmias

J. Bradfield, Brenton S. Bauer, Anthony C Li, 2018 .

The paradox of ICD shocks: sudden cardiac death prevention--heart failure death acceleration.

N. Boyle, J. Bradfield, 2010, Heart rhythm.

Impact of Local Ablation on Interconnected Channels Within Ventricular Scar: Mechanistic Implications for Substrate Modification

R. Mandapati, N. Boyle, K. Shivkumar, 2013, Circulation. Arrhythmia and electrophysiology.

Unipolar and Bipolar Electrogram Characteristics Predict Exit Block during Pulmonary Vein Antral Isolation

N. Boyle, K. Shivkumar, J. Bradfield, 2012, Pacing and clinical electrophysiology : PACE.

Monomorphic Ventricular Arrhythmias in Athletes

K. Shannon, N. Boyle, T. Horwich, 2019, Arrhythmia & electrophysiology review.

ANADOLU KARD ‹ YOLOJ ‹ DERG ‹ S ‹ The Anatolian Journal of Cardiology ®

D. Erdoğan, J. Bradfield, R. Altekin, 2011 .

Avoiding the 'cart before the horse': the importance of continued basic and translational studies of renal denervation.

K. Shivkumar, J. Bradfield, 2020, 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.

Prognostic Impact of Atrial Rhythm and Dimension in Patients with Structural Heart Disease Undergoing Cardiac Sympathetic Denervation for Ventricular Arrhythmias.

J. Gornbein, K. Shivkumar, J. Bradfield, 2019, Heart rhythm.

Mechanisms and management of refractory ventricular arrhythmias in the age of autonomic modulation.

K. Shivkumar, J. Bradfield, O. Ajijola, 2018, Heart rhythm.

Thoracic Epidural Anesthesia Can Be Effective for the Short‐Term Management of Ventricular Tachycardia Storm

A. Mahajan, A. Nogami, N. Boyle, 2017, Journal of the American Heart Association.

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

W. Stevenson, F. Marchlinski, A. Natale, 2020, Journal of cardiovascular electrophysiology.

How to Place a Lead in the Azygos Vein

D. Cooper, N. Boyle, K. Shivkumar, 2017 .

Cardiac sympathetic denervation for intractable ventricular arrhythmias in Chagas disease.

K. Shivkumar, J. Bradfield, M. Vaseghi, 2016, Heart rhythm.

Serial FDG-PET scans help to identify steroid resistance in cardiac sarcoidosis.

J. Bradfield, C. Narasimhan, Hrushikesh U. Aurangabadkar, 2017, International journal of cardiology.

Incidence of abnormal positron emission tomography in patients with unexplained cardiomyopathy and ventricular arrhythmias: The potential role of occult inflammation in arrhythmogenesis.

Pawan K Gupta, H. Schelbert, C. Schiepers, 2015, Heart rhythm.

Right ventricular lead proarrhythmia: A novel intervention for an under-recognized phenomenon

K. Shivkumar, J. Bradfield, Justin Hayase, 2017, HeartRhythm case reports.

Recurrent ventricular tachycardia after cardiac sympathetic denervation: Prolonged cycle length with improved hemodynamic tolerance and ablation outcomes

N. Boyle, K. Shivkumar, Duc H. Do, 2020, Journal of cardiovascular electrophysiology.

RENAL DENERVATION AS AN ADJUNCTIVE THERAPY TO CARDIAC SYMPATHETIC DENERVATION FOR ABLATION REFRACTORY VENTRICULAR TACHYCARDIA.

J. Moriarty, S. Kee, N. Boyle, 2020, Heart rhythm.

Review: Early treatment of a cardiovascular event with nitrates or ACE inhibitors reduces short-term mortality

K. Shivkumar, J. Bradfield, 2010, Annals of Internal Medicine.

Premature ventricular contraction diurnal profiles predict distinct clinical characteristics and beta‐blocker responses

Pradeep S Rajendran, N. Boyle, K. Shivkumar, 2019, Journal of cardiovascular electrophysiology.

Anatomy of the Outflow Tract Region

K. Shivkumar, J. Bradfield, Fermin C. García, 2019, Cardiac Mapping.

Detection of inflammation using cardiac positron emission tomography (PET) for evaluation of ventricular arrhythmias: an institutional experience.

N. Boyle, K. Shivkumar, Duc H. Do, 2022, Heart rhythm.

A Case of Ventricular Tachycardia Caused by a Rare Cardiac Mesenchymal Hamartoma

H. Middlekauff, Jamar P. Uzzell, J. Bradfield, 2020, JACC. Case reports.

Living Anatomy of the Pericardial Space

Robert H. Anderson, S. Mori, K. Shivkumar, 2021, JACC: Clinical Electrophysiology.

Catheter ablation of scar-based ventricular tachycardia: Relationship of procedure duration to outcomes and hospital mortality.

J. Gornbein, R. Mandapati, N. Boyle, 2015, Heart rhythm.

Epicardial ablation of ventricular tachycardia: an institutional experience of safety and efficacy.

R. Mandapati, K. Shivkumar, J. Bradfield, 2013, Heart rhythm.

Adjunctive Therapies for Ventricular Arrhythmia Management: Autonomic Neuromodulation-Established and Emerging Therapies.

J. Bradfield, Justin Hayase, 2022, Cardiac electrophysiology clinics.

Catheter Ablation at the Forefront : The Tribulations of Clinical Trials

J. Bradfield, R. Tung, 2016 .

Intraoperative ventricular tachycardia substrate mapping: What is old is new again

J. Bradfield, 2019, Journal of cardiovascular electrophysiology.

Coupling interval variability differentiates ventricular ectopic complexes arising in the aortic sinus of valsalva and great cardiac vein from other sources: mechanistic and arrhythmic risk implications.

K. Shivkumar, J. Bradfield, John M. Miller, 2014, Journal of the American College of Cardiology.

Intramyocardial radiofrequency ablation of ventricular arrhythmias using intracoronary wire mapping and a coronary reentry system: Description of a novel technique

K. Shivkumar, J. Bradfield, J. Romero, 2018, HeartRhythm case reports.

Editorial commentary: Cardiac arrest and the young: Will we ever be able to predict the unpredictable?

J. Bradfield, 2020, Trends in cardiovascular medicine.

Brugada syndrome—Malignant phenotype associated with acute cardiac inflammation?

K. Shivkumar, J. Bradfield, R. Tung, 2017, HeartRhythm case reports.

Endocardial ablation of ventricular ectopic beats arising from the basal inferoseptal process of the left ventricle.

Robert H. Anderson, K. Shivkumar, M. Saba, 2018, Heart rhythm.

The Prevalence of Chagas Disease Among Latin American Immigrants with Pacemakers in Los Angeles, California.

J. Bradfield, Patrick F. Bergin, M. Traina, 2017, The American journal of tropical medicine and hygiene.

Cardiac inflammation and ventricular tachycardia in Chagas disease

K. Shivkumar, J. Bradfield, S. Meymandi, 2017, HeartRhythm case reports.

Repolarization Parameters Are Associated With Mortality In Chagas Disease Patients In The United States

K. Shivkumar, J. Bradfield, R. Wachsner, 2014, Indian pacing and electrophysiology journal.

Letter to the Editor Response To Letter To The Editor Regarding Article "Repolarization Parameters Are Associated With Mortality In Chagas Disease Patients In The United States"

K. Shivkumar, J. Bradfield, R. Wachsner, 2014 .

The Derivative Tissue Activation as a Unique Marker of Arrhythmogenic Myocardium.

R. Lux, K. Shivkumar, J. Bradfield, 2022, Heart rhythm.

Utilization of Isochronal Late Activation Mapping to Minimize Ablation Lesion Set in a Patient with Diffuse Epicardial Scar from Non-Ischemic Cardiomyopathy

K. Shivkumar, J. Bradfield, Justin Hayase, 2020 .

Catheter Ablation of Typical Atrial Flutter in Severe Pulmonary Hypertension

R. Mandapati, N. Boyle, K. Shivkumar, 2012, Journal of cardiovascular electrophysiology.

Surgical ablation after stereotactic body radiation therapy for ventricular arrhythmias

N. Boyle, K. Shivkumar, J. Bradfield, 2021, HeartRhythm case reports.

A New Combined Parameter to Predict Premature Ventricular Complexes Induced Cardiomyopathy: Impact and Recognition of Epicardial Origin

C. Elayi, N. Boyle, K. Shivkumar, 2016, Journal of cardiovascular electrophysiology.

Premature Ventricular Contraction Coupling Interval Variability Destabilizes Cardiac Neuronal and Electrophysiological Control: Insights From Simultaneous Cardioneural Mapping

Marmar Vaseghi, Kalyanam Shivkumar, Siamak Salavatian, 2017, Circulation. Arrhythmia and electrophysiology.

Arrhythmic Risk Profile and Outcomes of Patients Undergoing Cardiac Sympathetic Denervation for Recurrent Monomorphic Ventricular Tachycardia After Ablation

J. Gornbein, N. Boyle, K. Shivkumar, 2021, Journal of the American Heart Association.

Catheter Ablation Utilizing Remote Magnetic Navigation: A Review of Applications and Outcomes

Kalyanam Shivkumar, Noel G Boyle, Roderick Tung, 2012, Pacing and clinical electrophysiology : PACE.

Coronary sinus fistula: a reason not to implant a transvenous left ventricular lead.

K. Shivkumar, J. Bradfield, R. Tung, 2011, Heart rhythm.

Heart Failure Secondary to Chagas Disease: an Emerging Problem in Non-endemic Areas

J. Bradfield, M. Traina, S. Meymandi, 2016, Current Heart Failure Reports.

A Case Of Difficult Epicardial Access For Ablation Of Ventricular Tachcyardia.

K. Shivkumar, J. Bradfield, R. Tung, 2014, Journal of atrial fibrillation.

Ventricular Parasystole in Cardiomyopathy Patients: A Link Between His-Purkinje System Damage and Ventricular Fibrillation.

M. Fishbein, N. Boyle, K. Shivkumar, 2023, JACC. Clinical electrophysiology.

Cardiac Involvement in Sarcoidosis: Evolving Concepts in Diagnosis and Treatment

J. Moriarty, J. Belperio, J. Lynch, 2017, Seminars in Respiratory and Critical Care Medicine.

Cardiac Involvement in Sarcoidosis: Evolving Concepts in Diagnosis and Treatment

M. Fishbein, J. Lynch, K. Shivkumar, 2014, Seminars in Respiratory and Critical Care Medicine.

Prevalence and Impact of Chagas Disease Among Latin American Immigrants With Nonischemic Cardiomyopathy in Los Angeles, California

S. Montgomery, F. Steurer, J. Bradfield, 2015, Circulation. Heart failure.

A new system of field shaping for external-beam radiation therapy.

J. Bradfield, A. Feldman, A. Demidecki, 1973, Radiology.

Circadian variability patterns predict and guide premature ventricular contraction ablation procedural inducibility and outcomes.

Minglong Chen, N. Boyle, K. Shivkumar, 2018, Heart rhythm.

CIRCARDIAN VARIABILITY PATTERNS PREDICT AND GUIDE PREMATURE 1 VENTRICULAR CONTRACTION ABLATION PROCEDURAL INDUCIBILITY AND 2 OUTCOMES

Minglong Chen, N. Boyle, K. Shivkumar, 2017 .

Clinical predictors and implications of cardiac inflammation detected on positron emission tomography (PET) in patients referred for premature ventricular complex (PVC) ablation

N. Boyle, K. Shivkumar, Duc H. Do, 2022, Journal of Interventional Cardiac Electrophysiology.

Editorial commentary: Catheter ablation of ventricular arrhythmias: A changing landscape.

J. Bradfield, 2019, Trends in cardiovascular medicine.

Cardiac magnetic resonance imaging using wideband sequences in patients with nonconditional cardiac implanted electronic devices.

J. Finn, P. Hu, N. Boyle, 2017, Heart rhythm.

Relationship Between Sinus Rhythm Late Activation Zones and Critical Sites for Scar-Related Ventricular Tachycardia: Systematic Analysis of Isochronal Late Activation Mapping

Marmar Vaseghi, Kalyanam Shivkumar, Noel G Boyle, 2015, Circulation. Arrhythmia and electrophysiology.

Renal Denervation

M. Kuo, J. Moriarty, J. McWilliams, 2016, Journal of laboratory automation.

Effect of Bioimpedance Body Composition Analysis on Function of Implanted Cardiac Devices

J. Bradfield, E. Buch, T. Horwich, 2012, Pacing and clinical electrophysiology : PACE.

Functional Pace-Mapping Responses for Identification of Targets for Catheter Ablation of Scar-Mediated Ventricular Tachycardia

Kalyanam Shivkumar, Noel Boyle, Roderick Tung, 2012, Circulation. Arrhythmia and electrophysiology.

Masked premature ventricular contractions and intradevice interaction causing ventricular fibrillation

N. Boyle, K. Shivkumar, Duc H. Do, 2020, HeartRhythm case reports.

Importance Of Delayed Enhanced Cardiac MRI In Idiopathic RVOT-VT: Differentiating Mimics Including Early Stage ARVC And Cardiac Sarcoidosis.

N. Boyle, J. Bradfield, R. Tung, 2014, Journal of atrial fibrillation.

Redefining Optimal Targets for Intramural Ventricular Arrhythmias: Planning for Combat!

J. Bradfield, 2020, JACC. Clinical electrophysiology.

Revisiting the Anatomy of the Left Ventricular Summit.

K. Fukuzawa, K. Shivkumar, J. Bradfield, 2022, Cardiac electrophysiology clinics.

How to Use Intracardiac Echocardiography to Recognize Normal Cardiac Anatomy.

K. Shivkumar, J. Bradfield, Houman Khakpour, 2021, Cardiac Electrophysiology Clinics.

Atrioesophageal Fistula After Atrial Fibrillation Ablation: A single center series.

R. Shemin, N. Boyle, K. Shivkumar, 2017, Journal of atrial fibrillation.

Atrial tachycardia arising from the distal left atrial appendage requiring high-power endocardial and epicardial ablation

K. Shivkumar, J. Bradfield, Justin Hayase, 2020, HeartRhythm case reports.

Outcomes in orthotopic heart transplantation following pacemaker implantation

N. Boyle, K. Shivkumar, Duc H. Do, 2023, Pacing and clinical electrophysiology : PACE.

Value of a Posterior Electrocardiographic Lead for Localization of Ventricular Outflow Tract Arrhythmias: The V4/V8 Ratio.

Kalyanam Shivkumar, Roderick Tung, Bing Yang, 2017, JACC. Clinical electrophysiology.

Autonomic nervous system and arrhythmias in structural heart disease

K. Shivkumar, J. Bradfield, O. Ajijola, 2022, Autonomic Neuroscience.

Scar voltage threshold determination using ex vivo magnetic resonance imaging integration in a porcine infarct model: Influence of interelectrode distances and three-dimensional spatial effects of scar.

D. Ennis, Steven J. Kim, P. Finn, 2016, Heart rhythm.

Non-invasive stereotactic body radiation therapy for refractory ventricular arrhythmias: an institutional experience

P. Hu, M. Steinberg, Jie Deng, 2020, Journal of Interventional Cardiac Electrophysiology.

Hybrid surgical vs percutaneous access epicardial ventricular tachycardia ablation.

N. Boyle, K. Shivkumar, Duc H. Do, 2017, Heart rhythm.

Our Approach to Minimize Risk of Epicardial Access: Standard Techniques with the Addition of Electroanatomic Mapping Guidance

Kalyanam Shivkumar, Noel G Boyle, Roderick Tung, 2013, Journal of cardiovascular electrophysiology.

Incidence and significance of adhesions encountered during epicardial mapping and ablation of ventricular tachycardia in patients with no history of prior cardiac surgery or pericarditis.

N. Boyle, K. Shivkumar, J. Bradfield, 2018, Heart rhythm.

T1 Mapping: A Complementary Tool for Substrate Visualization.

J. Bradfield, Justin Hayase, 2023, JACC. Clinical electrophysiology.

Three Dissociated Rhythms After Ablation of an Atypical Right Atrial Flutter

K. Shivkumar, J. Bradfield, E. Buch, 2011, Journal of cardiovascular electrophysiology.

Incessant intraseptal ventricular tachycardia ablated utilizing extracorporeal membrane oxygenation and bipolar ablation

D. Cruz, N. Boyle, K. Shivkumar, 2018, HeartRhythm case reports.

Transmural "Scar-to-Scar" Reentrant Ventricular Tachycardia

K. Shivkumar, J. Bradfield, R. Tung, 2013, Indian pacing and electrophysiology journal.

Case Report Transmural "Scar-to-Scar" Reentrant Ventricular Tachycardia

K. Shivkumar, J. Bradfield, R. Tung, 2013 .

Epicardial Access and Indications

K. Shivkumar, J. Bradfield, 2020 .

Reply to the Editor— Bipolar ablation of refractory VT circuits: Current opportunities and limitations

D. Cruz, N. Boyle, K. Shivkumar, 2019, HeartRhythm case reports.

Sudden cardiac arrest in athletes and strategies to optimize preparedness

B. Dolezal, N. Boyle, J. Bradfield, 2023, Clinical cardiology.

Linear epicardial cryoablation effects in a porcine model: Lesion characteristics and vascular risk

K. Shivkumar, J. Bradfield, O. Ajijola, 2023, Journal of cardiovascular electrophysiology.

Catheter ablation in the vicinity of the proximal conduction system: Your eyes cannot see what your mind does not know.

N. Boyle, K. Shivkumar, J. Bradfield, 2019, Heart rhythm.

Surgical Ventricular Tachycardia Ablation in Arrhythmogenic Right Ventricular Cardiomyopathy after Previous Hemopericardium

K. Shivkumar, J. Bradfield, Justin Hayase, 2020 .

Repolarization Parameters Are Associated With Mortality In Chagas Disease Patients In The United States

K. Shivkumar, J. Bradfield, R. Wachsner, 2014, Indian pacing and electrophysiology journal.

Prevalence and Impact of Chagas Disease Among Latin American Immigrants With Nonischemic Cardiomyopathy in Los Angeles, California

S. Montgomery, F. Steurer, J. Bradfield, 2015, Circulation. Heart failure.

Massive Air Embolism During Atrial Fibrillation Ablation

N. Boyle, K. Shivkumar, Duc H. Do, 2021, JACC. Case reports.

Cardiac perforation complicating cardiac electrophysiology procedures: value of angiography and use of a closure device to avoid cardiac surgery

T. Delhaas, K. Shivkumar, J. Bradfield, 2019, Journal of Interventional Cardiac Electrophysiology.