HeartRhythm

NOVEMBER 16, 2024

Patients with repaired tetralogy of Fallot are at risk of ventricular tachycardia (VT) and sudden cardiac death. Most VTs arise from 5 slowly conducting anatomic isthmuses (SCAIs; conduction velocity ≤0.5 m/s) bound by the right ventriculotomy, ventricular septal defect patch, and tricuspid and pulmonic valves.

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Sudden Cardiac Death Tachycardia Ablation Tricuspid 40

HeartRhythm

APRIL 30, 2024

Subcutaneous implantable cardioverter-defibrillators (S-ICDs) alleviate many issues associated with a transvenous system, while having similar efficacy to transvenous ICDs at preventing sudden cardiac death. However, S-ICDs have higher rates of shocks due to a lack of anti-tachycardia pacing (ATP).

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Defibrillator Sudden Cardiac Death Tachycardia 40

HeartRhythm

APRIL 30, 2024

Patients with adult congenital heart disease are at risk for ventricular arrhythmias (VAs) or sudden cardiac death.

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Sudden Cardiac Death Congenital Heart Disease Tachycardia Congenital 40

HeartRhythm

MARCH 14, 2024

Ventricular tachycardia (VT) is a common consequence of both ischemic and non-ischemic heart diseases, often leading to sudden cardiac death. Enhanced sympathetic nerve activity has been implicated in the initiation of VT.

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Tachycardia Sudden Cardiac Death Ablation Heart Disease 40

Dr. Smith's ECG Blog

JANUARY 23, 2024

Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. The granulomatous inflammation affects the heart, causing an infiltrative cardiomyopathy The most common manifestations of cardiac sarcoidosis are atrioventricular (AV) block and ventricular tachyarrhythmias (VT).

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Tachycardia Arrhythmia Heart Disease Sudden Cardiac Death 92

HeartRhythm

JUNE 3, 2024

Recent advancements in catheter ablation for structural ventricular tachycardia (VT), such as high-density mapping and cardiac imaging-based detection of target areas, have significantly improved the efficacy of ablation procedures.

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Sudden Cardiac Death Tachycardia Ablation Defibrillator 40

Frontiers in Cardiovascular Medicine

MARCH 14, 2024

Background Brugada syndrome (BrS) is a channelopathy that can lead to sudden cardiac death in the absence of structural heart disease. Patients with BrS can be asymptomatic or present with symptoms secondary to polymorphic ventricular tachycardia or ventricular fibrillation. The patient did not have underlying diseases.

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Sudden Cardiac Death Coronary Angiogram Laboratory Echocardiogram 59

HeartRhythm

APRIL 22, 2024

Implantable cardiac defibrillator (ICD) implantation can protect against sudden cardiac death (SCD) after a myocardial infarction. However, improved risk stratification for device requirement is still needed.

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Sudden Cardiac Death Myocardial Infarction Defibrillator Tachycardia 40

HeartRhythm

DECEMBER 4, 2023

Catecholaminergic polymorphic ventricular tachycardia (CPVT) has been identified as a notable cause of sudden cardiac death in children and young adults.1 1 Mutation of ryanodine receptor 2 (RYR2) is observed in the majority of CPVT patients and is inherited through an autosomal dominant pattern.2

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Sudden Cardiac Death Tachycardia Arrhythmia 40

HeartRhythm

APRIL 30, 2024

The SCVT is a polymorphic ventricular tachycardia that commonly affects younger patients without structural heart disease that is associated with sudden cardiac death (SCD).

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Sudden Cardiac Death Tachycardia Heart Disease 40

HeartRhythm

APRIL 30, 2024

In patients with DM sudden cardiac death (SCD) typically from ventricular tachycardia (VT) accounts for as much as 40% of mortality. Mechanisms underlying the genesis of VT in the DM heart remain poorly understood

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Sudden Cardiac Death Tachycardia Diabetes 40

HeartRhythm

APRIL 30, 2024

Sudden cardiac death often results from monomorphic VT (MVT), polymorphic VT or VF (PVT/VF). Insertable cardiac monitors (ICMs) record single vector ECGs for tachycardias (TACHY). Even with expert clinician review, discriminating VT/VF from SVTs or false detections from oversensing (OS) is challenging.

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Sudden Cardiac Death Tachycardia 40

Circulation

NOVEMBER 11, 2024

Since its identification in 1981 its diagnosis has increased due to the advancements in cardiac imaging. It’s association with ventricular arrythmia (VA) and sudden cardiac death (SCD) underscores the importance of its identification. Electrocardiogram (ECG) showed sustained monomorphic VT at a rate of 160 bpm.

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Bicuspid/Mitral Aneurysm Sudden Cardiac Death Tachycardia 40

HeartRhythm

APRIL 30, 2024

For the past four decades, implantable cardioverter defibrillator (ICD) therapy has become the standard of care for preventing sudden cardiac death in high-risk individuals. The rate of ICD implantation has risen due to the increasing population age and the growing prevalence of cardiac arrhythmias.

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Atrial Fibrillation Defibrillator Sudden Cardiac Death Tachycardia 40

HeartRhythm

OCTOBER 15, 2023

Sudden cardiac death remains the main killer of adults in industrialized countries and reentrant ventricular arrhythmia (VA) is its main underlying mechanism1.

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Sudden Cardiac Death Tachycardia Defibrillator Ablation 40

HeartRhythm

NOVEMBER 20, 2024

Tetralogy of Fallot (TOF) represents the poster child for monomorphic ventricular tachycardia (MVT) in congenital heart disease. Sustained MVT affects approximately 10% of such patients at 30 years after cardiac repair and is inextricably related to the burden of sudden cardiac death (SCD).(1)

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Congenital Heart Disease Electrophysiology Congenital Heart Disease 40

ECG Weekly Workout

JANUARY 14, 2024

He is afebrile on arrival, with mild sinus tachycardia. He is afebrile on arrival, with mild sinus tachycardia. HPI: A 55-year-old man with no significant PMHx (on no medications) presents to the emergency department with right lower quadrant pain. He is found to have perforated appendicitis and is admitted for operative intervention.

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Tachycardia Sudden Cardiac Death 81

Circulation

OCTOBER 27, 2023

BACKGROUND:In severely affected patients with catecholaminergic polymorphic ventricular tachycardia, beta-blockers are often insufficiently protective. The primary end point was AEs, defined as sudden cardiac death, sudden cardiac arrest, appropriate implantable cardioverter defibrillator shock, and arrhythmic syncope.

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Tachycardia Sudden Cardiac Death Defibrillator Cardiac Arrest 40

European Journal of Heart Failure

FEBRUARY 26, 2024

AR, arrhythmogenic; CI, confidence interval; CIF, cumulative incidence function; ECG, electrocardiogram; FLNC, filamin C; LMNA, lamin; MVA, major ventricular arrhythmia; NSVT, non-sustained ventricular tachycardia; RBM20, RNA binding motif 20; RMTL, restricted mean time lost; SCD, sudden cardiac death.

Cardiomyopathy 40

Cardiomyopathy Sudden Cardiac Death Arrhythmia Tachycardia 40

HeartRhythm

SEPTEMBER 10, 2023

A few decades ago all sudden cardiac arrests with documented ventricular fibrillation (VF) and structurally normal hearts were diagnosed as idiopathic ventricular fibrillation (IVF).

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Electrocardiogram Sudden Cardiac Death Cardiac Arrest Document 40

DAIC

SEPTEMBER 5, 2024

The EV ICD Pivotal Trial is a prospective, multicenter, single-arm, non-randomized, pre-market clinical study that assessed the safety and effectiveness of the Medtronic EV-ICD system for patients at risk of sudden cardiac death. It works by briefly delivering pacing pulses to the heart at a rate faster than the tachycardia.

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Defibrillator Sudden Cardiac Death Quality of Life Tachycardia 52

Heart BMJ

JANUARY 10, 2024

The prediction of sudden cardiac death remains the ‘holy grail’ of cardiology to enable optimal targeting of preventative therapies in at-risk groups. 1 Although ICDs have proven to be highly efficacious, less than 1 in 10 of the implanted devices are actually needed.

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Sudden Cardiac Death Defibrillator Tachycardia 40

Open Heart

APRIL 20, 2022

Significant right ventricular involvement was an exclusion criterion. Results Fifty-two patients (63% males, age 45 years (31–53)) composed the study cohort.

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Cardiomyopathy Chest Pain Sudden Cardiac Death Heart Failure 52

Open Heart

AUGUST 25, 2023

Background Consensus guidelines support the use of implanted cardioverter-defibrillators (ICD) for primary prevention of sudden cardiac death in patients with either non-ischaemic or ischaemic cardiomyopathy with left ventricular ejection fraction (LVEF) ≤35%. vs 65.4%, p<0.0001), more often white (87.5%

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Defibrillator Sudden Cardiac Death Myocardial Infarction Echocardiogram 52

Heart BMJ

JANUARY 10, 2024

Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a disease characterised by fibrofatty replacement of the ventricular myocardium due to specific mutations, leading to ventricular arrhythmias and sudden cardiac death. Emerging evidence suggests that combining flecainide and bisoprolol may be efficacious.

Cardiomyopathy 40

Cardiomyopathy Sudden Cardiac Death Ablation Arrhythmia 40

Journal of Cardiovascular Electrophysiology

FEBRUARY 8, 2024

Patients with Brugada syndrome who are asymptomatic and have no ventricular tachycardia/ventricular fibrillation inducibility by programmed electrical stimulation are at extremely low risk of experiencing late life-threatening arrhythmias. and 100%, respectively.

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Arrhythmia Sudden Cardiac Death Tachycardia Risk Factors 40

Journal of Cardiovascular Electrophysiology

FEBRUARY 7, 2024

Chagas disease (ChD) was associated with increased rates of ventricular tachycardia and ventricular fibrillation in ICD patients only in the initial two periods, but there was no statistical difference in the last period. Methods This retrospective observational study included patients who received ICDs between October 2007 and December 2018.

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Defibrillator Sudden Cardiac Death Tachycardia Public Health 40

Dr. Smith's ECG Blog

SEPTEMBER 2, 2024

There is a run of polymorphic ventricular tachycardia — which given the QT prolongation, qualifies as Torsades de Points ( TdP ). This patient was having recurrent episodes of polymorphic ventricular tachycardia with an underlying long QT interval ( = Torsades des Pointes ). ECG #2 Interpretation of ECG #2: Underlying sinus rhythm.

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Tachycardia Blog Sudden Cardiac Death Arrhythmia 111

All About Cardiovascular System and Disorders

MARCH 17, 2024

Then, why is it mentioned that, implanting a defibrillator soon after an acute myocardial infarction, in those with left ventricular dysfunction and prone for ventricular arrhythmias and sudden cardiac death, is not useful? Mostly for protection against sudden cardiac death. So, this is how an ICD works.

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Myocardial Infarction Defibrillator Sudden Cardiac Death Arrhythmia 52

All About Cardiovascular System and Disorders

OCTOBER 26, 2023

Brugada syndrome is thought to account for about one fourth of sudden cardiac deaths in individuals with structurally normal heart. Even though mutations in other channels have been described in Brugada syndrome, only those in SCN5A gene are considered to be definitely disease causing. mV or R/q ≥ 0.75.

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Sudden Cardiac Death Atrial Fibrillation Electrophysiology Arrhythmia 52

Circulation

NOVEMBER 11, 2024

An external monitor revealed one episode of non-sustained supraventricular tachycardia, otherwise was unremarkable. He experienced worsening symptoms for which emergency department evaluation revealed anterior lead T-wave inversions on EKG.

Cardiomyopathy 40

Cardiomyopathy Sudden Cardiac Death Echocardiogram Bicuspid/Mitral 40

EMS 12-Lead

APRIL 28, 2022

Initial vital signs include: NIBP 99/58 HR 150-160 (trend) RR 10 (spontaneous, but shallow) SpO2 86 (RA) BBS CTA The initial rhythm strip is attached: Figure 1 There is a wide complex tachycardia of varying morphology, amplitude, and R-R cycle length. Chapter 10: Recurrent Ventricular Tachycardia (pg. 2] Viskin, S., 3] Murphy, M.

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Tachycardia AFIB Coronary Artery Bypass Graft Arrhythmia 52

Dr. Smith's ECG Blog

JANUARY 30, 2019

Otherwise vitals after intubation were only notable for tachycardia. An initial EKG was obtained: Computer read: sinus tachycardia, early acute anterior infarct. 2017 AHA/ACC/HRS guideline for management of patients with ventricular arrhythmias and the prevention of sudden cardiac death.

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Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52

Dr. Smith's ECG Blog

OCTOBER 28, 2023

See this even more interesting and more dramatic and fascinating case: History of Hypertrophic Cardiomyopathy (HOCM), with Tachycardia and High Lactate = My Comment by K EN G RAUER, MD ( 10/28 /2023 ): = QUESTION: For clarity in Figure-1 — I've reproduced today's ECG without the long lead rhythm strip. If so — WHO to screen?

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Preserved Ejection Fraction Sudden Cardiac Death Heart Failure Chest Pain 61

Dr. Smith's ECG Blog

OCTOBER 7, 2019

Although the shock is no doubt partly a result of poor pump function, with low stroke volume, especially of the RV, it should be compensated for by tachycardia. Cardiac output is stroke volume x rate, so this patient needs a higher heart rate. He has a history of sudden cardiac death in his family.

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Bradycardia Cardiogenic Shock STEMI Ischemia 40

European Journal of Heart Failure

NOVEMBER 14, 2023

Sudden cardiac death in cardiomyoptahies: incidence, risk factors and prevention. ABSTRACT Cardiomyopathies are a significant contributor to cardiovascular morbidity and mortality, mainly due to the development of heart failure and increased risk of sudden cardiac death (SCD).

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Sudden Cardiac Death Cardiomyopathy Risk Factors Heart Failure 40

Frontiers in Cardiovascular Medicine

DECEMBER 15, 2024

BackgroundArrhythmogenic cardiomyopathy (ACM) is an inherited cardiomyopathy characterized by high risks of sustained ventricular tachycardia (sVT) and sudden cardiac death.

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Cardiomyopathy Tachycardia Sudden Cardiac Death Heart Failure 52