HeartRhythm

MARCH 31, 2025

Wide complex tachycardia was seen on ILR tracings, and he was presumptively diagnosed with non-ischemic cardiomyopathy (NICM) and ventricular tachycardia (VT). Implantable cardioverter-defibrillator (ICD) was implanted by his local hospital given syncope.

Defibrillator 40

Defibrillator Tachycardia Ischemia Exercise 40

HeartRhythm

AUGUST 27, 2024

Normally-functioning implantable cardioverter-defibrillators (ICDs) with intact lead systems occasionally fail to deliver therapy for ventricular tachycardia/ fibrillation (VT/VF) or deliver it only after clinically-significant delays (“failure-to-treat”).

Defibrillator 40

Defibrillator Tachycardia 40

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.

Tachycardia 52

Tachycardia Defibrillator Congenital Ischemia 52

ECG Guru

DECEMBER 21, 2023

If ventricular tachycardia occurs in an Implantable Cardioverter Defibrillator (ICD) wearer, the ICD can combat this with 2 different forms of therapy, provided these are activated (which can be done using a programming device). First, the ICD attempts to override the tachycardia. The fastest pacemaker gets control of the heart.

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Tachycardia Defibrillator Pacemaker 51

Dr. Smith's ECG Blog

JULY 25, 2024

He was defibrillated into VT. He then underwent dual sequential defibrillation into asystole. See these related cases: Cardiac arrest, defibrillated, diffuse ST depression and ST Elevation in aVR. Description of today's ECG findings ( Sinus tachycardia with diffuse ST depression and ST elevation in aVR ) — is diagnostic of DSI.

Cardiac Arrest 124

Cardiac Arrest Ischemia Tachycardia Defibrillator 124

ECG Guru

DECEMBER 18, 2023

If ventricular tachycardia occurs in an Implantable Cardioverter Defibrillator (ICD) wearer, the ICD can combat this with 2 different forms of therapy, provided these are activated (which can be done using a programming device). First, the ICD attempts to override the tachycardia. The fastest pacemaker gets control of the heart.

Tachycardia 52

Tachycardia Defibrillator Pacemaker 52

HeartRhythm

APRIL 30, 2024

Inappropriate shocks of implantable cardioverter-defibrillator (ICDs) are rare, with an incidence of 1.6% The common causes of inappropriate shocks include oversensing of noise or supraventricular tachycardia. over a 2-year follow-up period, but they are linked to poor prognosis.

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Defibrillator Tachycardia 40

Dr. Smith's ECG Blog

JANUARY 2, 2025

Because she has cardiomyopathy and ventricular dysrhythmias, the pacer included an Implanted Cardioverter-Defibrillator (ICD) Echo 6 days later after CRT: Normal estimated left ventricular ejection fraction. Even with tachycardia and a paced QRS duration of ~0.16 No wall motion abnormality. J Am Coll Cardiol.

Tachycardia 116

Tachycardia Cardiomyopathy Blog Bradycardia 116

Medical Xpress - Cardiology

APRIL 10, 2024

The late-breaking science was presented at EHRA 2024, a scientific congress of the European Society of Cardiology (ESC).

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Hospital Ablation Tachycardia Defibrillator 74

HeartRhythm

MARCH 31, 2025

A 52-year-old male with history of repaired Tetralogy of Fallot, left persistent SVC, surgical and transcatheter pulmonary valve replacements, permanent atrial fibrillation, complete heart block, and ventricular tachycardia with a right-sided dual chamber implantable cardioverter defibrillator (ICD) and one abandoned ICD lead (Fig A) was evaluated (..)

Defibrillator 40

Defibrillator Tricuspid Atrial Fibrillation Electrophysiology 40

HeartRhythm

MARCH 31, 2025

Electrical storm (ES) is associated with mortality, however, risk factors and characteristics of anti-tachycardia pacing (ATP) for ES in patients with transvenous implantable cardioverter-defibrillators (ICD) remains unclear.

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Defibrillator Risk Factors Tachycardia 40

HeartRhythm

MARCH 31, 2025

The extravascular implantable cardioverterdefibrillator (EV-ICD) has a single lead implanted substernally to enable defibrillation, anti-tachycardia pacing and pause-prevention pacing. The safety and efficacy of EV-ICDs is unknown in a young population.

Defibrillator 40

Defibrillator Tachycardia 40

Heart BMJ

MAY 23, 2024

He had previously undergone the placement of a dual-chamber implantable cardioverter-defibrillator for atrioventricular block and ventricular tachycardia (VT). He had a background of arrhythmic right ventricular cardiomyopathy.

Tachycardia 52

Tachycardia Defibrillator Cardiomyopathy 52

Journal of Cardiovascular Electrophysiology

FEBRUARY 29, 2024

Intrinsic antitachycardia pacing (iATP) may be beneficial both as first-line and secondary therapies to terminate ventricular tachycardia (VT) effectively in comparison with conventional antitachycardia pacing (ATP). However, the clinical efficacy of iATP in comparison with conventional ATP is unknown.

Defibrillator 40

Defibrillator Tachycardia Article 40

HeartRhythm

MARCH 31, 2025

Ventricular tachycardia (VT) increases morbidity and mortality in patients with cardiomyopathy. Catheter ablation (CA) lowers VT recurrence and implantable cardioverter defibrillator (ICD) interventions, however, its effect on all-cause mortality remains unclear.

Tachycardia 40

Tachycardia Defibrillator Cardiomyopathy Ablation 40

HeartRhythm

MARCH 31, 2025

In patients with implantable cardiac defibrillator (ICD), they may also lead to rapid stable ventricular rhythms that result in inappropriate therapies. Atrial tachyarrhythmias (ATs) such as atrial flutter and fibrillation increase the risk of stroke, heart failure and mortality.

Defibrillator 40

Defibrillator Atrial Flutter Heart Failure Tachycardia 40

HeartRhythm

MARCH 31, 2025

Brugada syndrome may result in ventricular tachycardia (VT) or ventricular fibrillation requiring multiple implantable cardioverter defibrillator (ICD) shocks, hospitalizations, and post-traumatic stress disorder despite antiarrhythmic therapy. There is still controversy regarding the role of VT ablation in these patients.

Tachycardia 40

Tachycardia Ablation Defibrillator Hospital 40

HeartRhythm

APRIL 30, 2024

Patients with the most common channelopathies: long QT syndrome (LQTS) and catecholaminergic polymorphic ventricular tachycardia (CPVT) exhibit marked heterogeneity, necessitating both evidenced-based and individualized therapeutic approaches.

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Defibrillator Pharmacology Tachycardia 40

HeartRhythm

MAY 15, 2024

Subcutaneous implantable cardioverter defibrillators (S-ICD) are a safe and effective alternative to transvenous ICDs for patients at risk for ventricular tachyarrhythmias.1 1 A major limitation of an S-ICD is its inability to deliver anti-tachycardia pacing (ATP) for monomorphic ventricular tachycardia (MMVT).

Defibrillator 40

Defibrillator Tachycardia Pacemaker 40

HeartRhythm

MARCH 31, 2025

Left ventricular assist device (LVAD) patients are at high risk for ventricular tachycardia (VT) due to arrhythmogenic substrate from underlying cardiomyopathy as well as the LVAD inflow cannula. VT is often well tolerated hemodynamically in the presence a LVAD; therefore, antiarrhythmic drugs are first-line for therapy.

Tachycardia 40

Tachycardia Ablation Inpatient Defibrillator 40

HeartRhythm

APRIL 30, 2024

In patients with implantable cardioverter defibrillator (ICD) inappropriate device therapy (IDT) is associated with worse outcomes and reduced quality of life (QoL). IDT is not rarely induced by misinterpretation of supraventricular tachycardia, detected by the ICD as atrial high rate episodes (AHRE).

Defibrillator 40

Defibrillator Quality of Life Tachycardia Stroke 40

Ken Grauer, MD

MARCH 23, 2023

She underwent cardiopulmonary resuscitation for VT/VFib — with ROSC ( R eturn O f S pontaneous C irculation ) following defibrillation and treatment with Epinephrine and Amiodarone. C ASE C onclusion : I lack detailed follow-up from today's case — other than knowing that the Atrial Tachycardia was controlled.

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Blog Tachycardia Arrhythmia Atrial Flutter 78

HeartRhythm

JULY 11, 2024

An 18-year-old male with arrhythmogenic cardiomyopathy was referred for catheter ablation of ventricular tachycardia after experiencing appropriate implantable cardioverter-defibrillator (ICD) shock. Six months prior, he had undergone uncomplicated implantation of an extravascular ICD (EV-ICD) [1].

Defibrillator 40

Defibrillator Ablation Tachycardia Cardiomyopathy 40

HeartRhythm

MARCH 31, 2025

Ventricular tachycardia (VT) is a significant source of morbidity and mortality in patients with ischemic and non-ischemic cardiomyopathy.

Tachycardia 40

Tachycardia Hospital Ablation Outcomes 40

HeartRhythm

APRIL 30, 2024

Patients suffering recurrent Ventricular Tachycardia (VT) despite antiarrhythmic drugs (AAD), defibrillator (ICD) and catheter ablation (CA) remain at significant risk of morbidity and mortality.

Tachycardia 40

Tachycardia Defibrillator Ablation 40

HeartRhythm

APRIL 30, 2024

Patients suffering recurrent Ventricular Tachycardia (VT) despite antiarrhythmic drugs, defibrillator and ablation remain at significant risk of morbidity and mortality. Although cardiac radioablation (RA) has demonstrated promise, results are heterogenous.

Tachycardia 40

Tachycardia Ablation Defibrillator 40

HeartRhythm

MARCH 31, 2025

Ventricular tachycardia (VT) is a significant source of morbidity and mortality in patients with ischemic and non-ischemic cardiomyopathy.

Tachycardia 40

Tachycardia Arrhythmia Ablation Defibrillator 40

HeartRhythm

APRIL 30, 2024

Non-sustained ventricular tachycardia (NSVT) is a predictor of sustained ventricular arrhythmias (VA) among implantable cardioverter defibrillator (ICD) recipients. We hypothesized that that a history of NSVT in primary prevention ICD recipients may parallel the risk profile observed in secondary prevention ICD recipients.

Tachycardia 40

Tachycardia Defibrillator Arrhythmia Outcomes 40

Journal of Cardiovascular Electrophysiology

FEBRUARY 10, 2025

We sought to determine predictors of RV pacing in patients who did not have a pacing indication at the time of initial ICD implant. The outcome was defined as the development of >20% RV pacing averaged over any continuous 90-day period within 24 months after the ICD implant.

Defibrillator 40

Defibrillator Cardiac Arrest Tachycardia Hypertension 40

Journal of Cardiovascular Electrophysiology

DECEMBER 18, 2024

ABSTRACT The extravascular implantable cardioverter-defibrillator (EV-ICD) was developed to overcome complications associated with transvenous leads while being able to deliver anti-tachycardia pacing (ATP). The lead is implanted in the substernal space, which makes extraction a cautious procedure.

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Defibrillator Tachycardia 40

Dr. Smith's ECG Blog

JUNE 9, 2024

We also gave insulin and furosemide (which take much longer to have their effect) After episodes of asystole and VF with defibrillation, she obtained ROSC and this 12-lead was recorded: The monitor around this time was NOT showing a very wide complex What do you think? Large calcium doses for hyperkalemia, and VT in hyperkalemia.

Cardiac Arrest 101

Cardiac Arrest Defibrillator Cardiac Function Tachycardia 101

HeartRhythm

APRIL 30, 2024

Short-long-short (S-L-S) electrocardiographic cycle length patterns are associated with incidence of ventricular tachycardia (VT) and ventricular fibrillation (VF). It is also recognised that pacemakers can facilitate these cycle length sequences, and that the observation of these sequences can predict future VT/VF events.

Coronary Artery Bypass Graft 40

Coronary Artery Bypass Graft Tachycardia Defibrillator Pacemaker 40

Frontiers in Cardiovascular Medicine

APRIL 3, 2025

Primary endpoint was the incidence of patients with new onset supraventricular arrhythmia (AF, atrial flutter or any supraventricular tachycardia) lasting >30s, post PFO closure.ResultsA total of 59 patients met the inclusion criteria.

Arrhythmia 40

Arrhythmia Atrial Flutter Atrial Fibrillation Defibrillator 40

HeartRhythm

MARCH 31, 2025

Chagasic cardiomyopathy has been associated with high defibrillator shock rates and poor clinical outcomes. Chagas disease is an endemic condition in Latin America. The benefits of VT ablation in patients with Chagasic cardiomyopathy have been evaluated in only a few studies.

Cardiomyopathy 40

Cardiomyopathy Ablation Outcomes Tachycardia 40

HeartRhythm

APRIL 30, 2024

Implantable cardioverter defibrillators (ICDs) may terminate ventricular tachycardia (VT) with antitachycardia pacing (ATP) delivered to a lead in the right ventricle (RV). Fast VTs are difficult to terminate with ATP at a single RV site.

Tachycardia 40

Tachycardia Defibrillator 40

American College of Cardiology

OCTOBER 11, 2024

The goal of the APPRAISE ATP trial was to determine the efficacy of antitachycardia pacing (ATP) in terminating ventricular tachycardia (VT) compared with a shock-only strategy in patients with a primary prevention implantable cardioverter-defibrillator (ICD).

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Defibrillator Tachycardia Article 49

Dr. Smith's ECG Blog

OCTOBER 18, 2023

The above ECGs show the initiation and continuation of a polymorphic ventricular tachycardia. Polymorphic ventricular tachycardia can be ischemic, catecholaminergic or related to QT prolongation. She spontaneously converted (Defibrillation was not performed). Below are two ECGs from the telemetry monitoring.

Cardiac Arrest 122

Cardiac Arrest Tachycardia Cardiomyopathy Bradycardia 122