Circulation

JANUARY 6, 2025

BACKGROUND:Current outcomes from catheter ablation for scar-dependent ventricular tachycardia (VT) are limited by high recurrence rates and long procedure durations. Predicted optimum ablation sites to terminate all VTs in the models were identified. Rapid-pacing protocols were used to induce VTs and to define the VT circuits.

Tachycardia 85

Tachycardia Ablation Technology Electrophysiology 85

Frontiers in Cardiovascular Medicine

OCTOBER 9, 2024

Electroanatomic mapping guides complex atrial tachycardia ablations; however, challenges may emerge after pulmonary vein isolation. 3D mapping systems can reveal the mechanism of tachycardia and critical areas that need to be ablated.

Ablation 52

Ablation Tachycardia Pulmonary 52

Medical Xpress - Cardiology

APRIL 10, 2024

The first randomized trial to investigate preventive ablation of a potential arrhythmogenic substrate associated with coronary chronic total occlusion (CTO) in patients at high risk of ventricular arrhythmias (VAs) reduces the risk of appropriate implantable cardioverter-defibrillator (ICD) therapy and unplanned hospitalization in patients with no (..)

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Ablation Hospital Tachycardia Defibrillator 74

Dr. Smith's ECG Blog

JUNE 11, 2023

The ECGs show a wide complex, irregularly irregular tachycardia. An accessory pathway was identified and was ablated. The patient has not had any recurrent episodes of atrial fibrillation and has a narrow QRS complex without delta wave on his ECG post ablation. So he was simply discharged without EP study.

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Tachycardia Atrial Fibrillation Chest Pain Blood Pressure 98

DAIC

DECEMBER 29, 2023

Outcomes of ablation with the FARAPULSE PFA System – a nonthermal treatment in which electric fields selectively ablate heart tissue – will be compared to outcomes following use of anti-arrhythmic drug (AAD) therapy, which is commonly prescribed for patients living with persistent AF. The company now anticipates U.S. Circulation.

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Atrial Fibrillation Ablation Atrial Flutter Blood Clot 115

Dr. Smith's ECG Blog

JANUARY 9, 2024

She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. Answer : The ECG above shows a regular wide complex tachycardia. Said differently, the ECG shows a rather slow ventricular tachycardia with a 2:1 VA conduction. Cardiac output (CO) was being maintained by the tachycardia.

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Tachycardia Electrophysiology Atrial Flutter Ischemia 120

Journal of Cardiovascular Electrophysiology

NOVEMBER 18, 2024

Five criteria predict whether patients are likely or unlikely to have supraventricular tachycardia induced or ablated at an electrophysiologic study (EPS). Methods We performed a retrospective chart review of 1089 patients referred for EPS and ablation of SVT at 2 high volume centers. 001; Ablation, 88% versus 26%, RR = 3.32 (2.48–4.46),

Tachycardia 45

Tachycardia Ablation Electrophysiology Article 45

Frontiers in Cardiovascular Medicine

FEBRUARY 26, 2025

Typically, patients with HCM experience sinus tachycardia and sinus arrest relatively infrequently. Meanwhile, a dual-chamber pacemaker can treat HCM by changing the sequence of myocardial contraction.

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Pacemaker Cardiomyopathy Ablation Bradycardia 52

Dr. Smith's ECG Blog

JUNE 21, 2024

A patient in the ICU with significant underlying cardiac disease [HFrEF 30%, non-ischemic cardiomyopathy, LBBB s/p CRT-D (biventricular pacer), AVNRT s/p ablation a few yrs ago, hx sinus tachycardia while on max tolerated BB therapy] went into a regular wide-complex tachycardia after intubation for severe COPD exacerbation.

Tachycardia 71

Tachycardia Atrial Fibrillation Pacemaker Blog 71

American College of Cardiology

NOVEMBER 26, 2024

What are the outcomes of patients referred for ventricular tachycardia (VT) ablation according to left ventricular ejection fraction (LVEF), tolerance of VT, and acute ablation outcome?

Ablation 66

Ablation Tachycardia Outcomes Article 66

Journal of Cardiovascular Electrophysiology

SEPTEMBER 16, 2024

Abstract Introduction Understanding the spatiotemporal location of the spontaneous termination of ventricular tachycardia (VT) may provide new insights for ablation. These findings may help guide future studies into improving the success of VT ablation.

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Tachycardia Ablation Electrophysiology Article 75

Dr. Smith's ECG Blog

FEBRUARY 16, 2024

But it is not disorganized enough to be polymorphic ventricular tachycardia. The patient did well and was referred for ablation. Learning Points: Wide complex irregularly irregular tachycardias include PMVT, AF with WPW, and AF with aberrancy. See our other cases of AF with WPW: A young man with another episode of tachycardia.

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Tachycardia Atrial Fibrillation Chest Pain Blood Pressure 136

All About Cardiovascular System and Disorders

APRIL 17, 2024

Ventricular tachycardia is a potentially life threatening cardiac arrhythmia. On the ECG, ventricular tachycardia can be defined as three or more ventricular ectopic beats occurring in a sequence at a rate more than 100 per minute. Another rare form of ventricular tachycardia is bidirectional ventricular tachycardia.

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Tachycardia Defibrillator Congenital Ischemia 52

HeartRhythm

DECEMBER 31, 2024

Using ECG recording and deductive reasoning, our teachers and predecessors classified the bradycardias and tachycardias and proposed many mechanisms, subsequently proven to be correct. Notwithstanding many insightful observations, the electrocardiogram (ECG) arguably ignited the big bang in our understanding of cardiac arrhythmias.

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Arrhythmia Bradycardia Electrocardiogram Electrophysiology 45

HeartRhythm

NOVEMBER 27, 2024

The goals of the current scientific research on ventricular tachycardia (VT) ablation included studies to prove the benefit of early ablation on heart failure progression and mortality and the need to better characterize and treat heterogeneous deep VT substrates.

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Tachycardia Ablation Heart Failure Research 40

Frontiers in Cardiovascular Medicine

JANUARY 29, 2025

BackgroundCryoablation for pediatric atrioventricular nodal reentry tachycardia (AVNRT) is favored for reducing conduction system injury compared to radiofrequency (RF) ablation. ResultsAmong 95 patients, 69 received RF ablation and 26 received cryoablation. Recurrence rates were 2.9% vs. 11.5%, p>0.99).

Pediatrics 52

Pediatrics Ablation Tachycardia Outcomes 52

HeartRhythm

MARCH 11, 2025

Catheter ablation is an effective therapy for ventricular tachycardia (VT) and is increasing in use. Assessment of contemporary real-world outcomes of VT ablation requires data inclusive of both inpatient and outpatient encounters.

Outpatient 40

Outpatient Inpatient Tachycardia Ablation 40

The New England Journal of Medicine

FEBRUARY 19, 2025

Catheter ablation as a treatment for ventricular tachycardia has lagged behind ablation procedures for atrial arrhythmias in becoming an established first-line therapy.

Tachycardia 40

Tachycardia Ablation Arrhythmia 40

Frontiers in Cardiovascular Medicine

OCTOBER 13, 2024

IntroductionAtrial tachycardia (AT) frequently occurs after cardiac surgery or surgical ablation procedures. The novel charge density-based mapping system (CDM) provides global chamber mapping and can detect crucial pathways of conduction; therefore, it has potential added value in catheter ablation (CA) of post-surgical ATs.

Tachycardia 52

Tachycardia Ablation Outcomes 52

American College of Cardiology

JANUARY 21, 2025

Personalized heart digital twin models accurately detect substrate and functional abnormalities during ablation for scar-dependent ventricular tachycardia (VT).

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Ablation Tachycardia Article 58

HeartRhythm

MAY 7, 2024

Catheter ablation has been shown to effectively reduce ventricular tachycardia (VT) recurrence, yet its efficacy in patients without an ICD implantation remains uncertain. Implantable cardioverter defibrillator (ICD) prevents sudden cardiac death (SCD) in patients with ischemic cardiomyopathy (ICM).

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Sudden Cardiac Death Tachycardia Cardiomyopathy Ablation 45

HeartRhythm

FEBRUARY 1, 2025

The best approach for ablating ventricular tachycardia (VT) targeting right ventricular free wall (RVFW) aneurysms in arrhythmogenic right ventricular cardiomyopathy (ARVC) remains undefined.

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Aneurysm Tachycardia Cardiomyopathy Ablation 45

Journal of Cardiovascular Electrophysiology

JANUARY 28, 2024

Abstract Introduction Some previous studies have reported that a first-step ethanol infusion into the vein of Marshall (EIVOM) with touch-up radiofrequency (RF) ablation can facilitate mitral isthmus (MI) block and improves the ablation outcomes in persistent atrial fibrillation (PeAF) patients. 0.78, p  = .006).

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Atrial Fibrillation Ablation Bicuspid/Mitral Tachycardia 75

Frontiers in Cardiovascular Medicine

DECEMBER 14, 2023

This study investigated the association between concurrent typical atrial flutter and cavotricuspid isthmus (CTI) ablation and the recurrence of atrial arrhythmia. The data were obtained from a multicenter registry of cryoballoon ablation for AF ( n  = 2,689). All the patients with typical atrial flutter underwent CTI ablation.

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Atrial Flutter Atrial Fibrillation Ablation Arrhythmia 64

HeartRhythm

APRIL 30, 2024

Pericarditis is the most common complication following hybrid sinus node sparing ablation for Inappropriate Sinus Tachycardia (IST)/Postural Orthostatic Tachycardia Syndrome (POTS).

Pericarditis 40

Pericarditis Tachycardia POTS Ablation 40

HeartRhythm

APRIL 30, 2024

A novel sinus node (SN) sparing hybrid ablation for inappropriate sinus node tachycardia (IST)/Postural Orthostatic Tachycardia Syndrome (POTS) has been demonstrated to be an effective and safe therapeutic option in patients with symptomatic drug-resistant IST/POTS.

Tachycardia 40

Tachycardia POTS Ablation 40

HCPLive

NOVEMBER 16, 2024

Initial catheter ablation achieved a lower risk of a composite primary endpoint event than anti-arrhythmic drug therapy in patients who survived a heart attack.

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Ablation Heart Attack Heart attacks Tachycardia 52

American College of Cardiology

NOVEMBER 16, 2024

Among patients with ischemic cardiomyopathy and ventricular tachycardia (VT), catheter ablation as a first-line strategy over antiarrhythmic drugs (AAD) was associated with a lower risk of the primary outcome, according to results of the VANISH2 trial.

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Ablation Tachycardia Cardiomyopathy Outcomes 58

HeartRhythm

APRIL 30, 2024

Biatrial atrial tachycardia (BiAT) is a rare form of atypical macro-reentrant AT (MRAT) that can be difficult to characterize and ablate. Ablation of regions demonstrating spatiotemporal dispersion (SD) has shown a high rate of atrial fibrillation (AF) termination to either sinus or MRAT during ablation.

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Atrial Fibrillation Ablation Tachycardia 40

HeartRhythm

APRIL 30, 2024

Ablation of regions demonstrating spatiotemporal dispersion (SD) has been demonstrated as an alternative strategy beyond pulmonary vein isolation in patients with persistent atrial fibrillation. Occurrence of atrial tachycardia (AT) following ablation remains a limitation of this approach.

Atrial Fibrillation 40

Atrial Fibrillation Ablation Tachycardia Pulmonary 40

Frontiers in Cardiovascular Medicine

JANUARY 10, 2024

However, widely split P' waves in focal atrial tachycardia (AT) on a surface electrocardiogram (ECG) have rarely been reported. Case summary A 67-year-old patient, who had undergone two radiofrequency ablations for atrial fibrillation, presented with recurrent palpitation.

Tachycardia 59

Tachycardia Electrophysiology Atrial Fibrillation Electrocardiogram 59

American College of Cardiology

AUGUST 9, 2024

What is the feasibility and safety of ventricular tachycardia (VT) ablation in patients with structural heart disease using a zero-fluoroscopy approach?

Heart Disease 53

Heart Disease Ablation Tachycardia Article 53

HeartRhythm

APRIL 23, 2024

She had previously undergone three prior endocardial radiofrequency ablations for scar-related ventricular tachycardia (VT) with the most recent procedure at our center 4 months prior to the current hospital presentation.

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Tachycardia Ablation Cardiomyopathy Hospital 40

HeartRhythm

JUNE 4, 2024

Recurrent ventricular tachycardia (VT) can be treated by substrate modification of the myocardial scar by catheter ablation during sinus rhythm without VT induction. Better defining this arrhythmic substrate could help improve outcome and reduce ablation burden.

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Ablation Tachycardia Outcomes 40

HeartRhythm

MARCH 11, 2025

Atrial resetting can be used for discerning the anterograde pathway in slow/fast atrioventricular nodal reentrant tachycardia (AVNRT).

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Tachycardia Ablation 45

Frontiers in Cardiovascular Medicine

JANUARY 8, 2025

IntroductionFocal atrial tachycardia (FAT) is predominant in the pediatric population. A 12-lead electrocardiogram revealed a narrow QRS complex tachycardia with a rate of 157 beats per minute and a prolonged RP relationship. Echocardiography indicated a severely reduced ejection fraction of 22%.

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Tachycardia Ablation Cardiomyopathy Electrocardiogram 40

Journal of the American Heart Association

DECEMBER 8, 2023

Twenty‐six PVT/ventricular fibrillation–triggering PVCs were identified for ablation. After a mean follow‐up of 49 months after ablation, 8 (57%) patients were free from syncope recurrence. Ablation of trigger beat significantly reduced the syncope frequency (mean±SD, 4.3±1.6

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Ablation Tachycardia Electrophysiology Outcomes 45