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. A series of cardiac arrhythmias were seen during the course of her resuscitation — including the interesting arrhythmia shown in the long lead II of Figure-1.

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Blog Tachycardia Arrhythmia Atrial Flutter 78

Dr. Smith's ECG Blog

JANUARY 23, 2024

Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. She was given CRT-D (Cardiac Resynchronization Therapy-Defibrillator). VT is the second most common presenting arrhythmia. Vaso or inotropic medications are not harmless, and can precipitate life threatening arrhythmias.

Tachycardia 86

Tachycardia Arrhythmia Heart Disease Sudden Cardiac Death 86

DAIC

SEPTEMBER 5, 2024

2, 2024 – Medtronic recently shared long-term results from the global Extravascular Implantable Cardioverter Defibrillator (EV ICD) Pivotal Trial, reinforcing the performance and safety of the EV-ICD system. 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

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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Ablation Hospital Tachycardia Defibrillator 54

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

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.

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Tachycardia Defibrillator Arrhythmia Outcomes 40

Dr. Smith's ECG Blog

JULY 21, 2024

However, he suddenly developed a series of malignant ventricular arrhythmias. This progressed to electrical storm , with incessant PolyMorphic Ventricular Tachycardia ( PMVT ) and recurrent episodes of Ventricular Fibrillation ( VFib ). He required multiple defibrillations within a period of a few hours. What do you think?

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Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 113

Journal of the American Heart Association

FEBRUARY 13, 2024

BackgroundScreening for atrial fibrillation (AF) may reveal incidental arrhythmias of relevance. We furthermore report treatment decisions because of incidental arrhythmias. We furthermore report treatment decisions because of incidental arrhythmias. We found incidental arrhythmias in 94 patients (11.8%).

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Atrial Fibrillation Arrhythmia Hospital Tachycardia 40

HeartRhythm

APRIL 30, 2024

Patients with therapy-refractory ventricular tachycardia (VT) suffer from recurrent VT episodes despite optimal conventional therapy. Consequent implantable cardioverter-defibrillator (ICD) shocks can tremendously affect quality of life.

Arrhythmia 40

Arrhythmia Quality of Life Defibrillator Tachycardia 40

Journal of Cardiovascular Electrophysiology

FEBRUARY 7, 2024

Progressive decline across periods in mortality rates among patients with implantable cardioverter-defibrillator (ICD). 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.

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Defibrillator Sudden Cardiac Death Tachycardia Public Health 40

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. These developments are likely to broaden the treatment scope to include patients with recurrent VT episodes.

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Sudden Cardiac Death Tachycardia Ablation Defibrillator 40

HeartRhythm

MARCH 12, 2024

Many patients with mild to moderately reduced left ventricular ejection fraction (LVEF) that require permanent pacemaker (PPM) implantation do not have a concurrent indication for implantable cardioverter-defibrillator (ICD) therapy. However, the risk of ventricular tachycardia/fibrillation (VT/VF) in this population is unknown.

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Pacemaker Defibrillator Arrhythmia Tachycardia 40

HeartRhythm

APRIL 30, 2024

In the PARTITA trial antitachycardia pacing (ATP) predicted the occurrence of implantable cardioverter-defibrillator (ICD) shocks. Catheter ablation of ventricular tachycardia after the first shock reduced the risk of death or worsening heart failure (wHF).

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Defibrillator Ablation Heart Failure Tachycardia 40

Dr. Smith's ECG Blog

OCTOBER 23, 2023

She was successfully revived after several rounds of ACLS including defibrillation and amiodarone. An Initial ECG was performed: Initial ECG: Sinus tachycardia with prolonged QT interval (QTc of 534 ms by Bazett). T-wave alternans and the susceptibility to ventricular arrhythmias. No ischemic ST changes. Teaching Points: 1.

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Tachycardia Cardiac Arrest ICU Blog 120

Circulation

NOVEMBER 11, 2024

This can initiate ventricular arrhythmias like polymorphic ventricular tachycardia (PMVT). She was externally defibrillated with 200J and received magnesium and an IV amiodarone bolus. She was successfully defibrillated with 360J. Telemetry showed Spike-on-T phenomenon which initiated PMVT.

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Tachycardia Pacemaker Defibrillator Atrial Fibrillation 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

European Journal of Heart Failure

NOVEMBER 11, 2024

The main secondary study endpoints are all-cause mortality, cardiovascular mortality, incidence of implantable cardioverter-defibrillator (ICD) therapy, hospitalizations, quality of life, time to first ICD therapy, number of device-detected ventricular tachycardia/ventricular fibrillation episodes, left ventricular function, and exercise tolerance.

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Heart Transplant Transplant Heart Failure Ablation 40

Dr. Smith's ECG Blog

SEPTEMBER 2, 2024

There are a number of things to look for in an ECG that can hint at arrhythmia as the cause of an apparent seizure. There is a run of polymorphic ventricular tachycardia — which given the QT prolongation, qualifies as Torsades de Points ( TdP ). This episode self terminated before defibrillation was possible.

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Tachycardia Blog Sudden Cardiac Death Arrhythmia 107

Open Heart

NOVEMBER 21, 2024

Background Ventricular arrhythmias (VAs) frequently occur in the acute phase of myocarditis. An increased risk of adverse outcomes during follow-up was observed in patients presenting with monomorphic ventricular tachycardia (OR 3.77, 95% CI 1.23 The pooled proportion of patients who experienced VA recurrence was 0.41 (95% CI 0.30

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Sudden Cardiac Death Defibrillator Risk Factors Tachycardia 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. channels, Connexin 43 and Wnt signalling, potentially modifying myocardial fibrosis.

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Cardiomyopathy Sudden Cardiac Death Ablation Arrhythmia 40

All About Cardiovascular System and Disorders

MAY 1, 2024

ICD is short form for implantable cardioverter defibrillator, used to automatically shock back the heart into action in case of life threatening ventricular arrhythmias. Moreover, the internal shocks given by CRT-D can be painful, though essential to save life in case of fast ventricular tachycardia or fibrillation.

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Heart Failure Arrhythmia Pacemaker Defibrillator 52

Dr. Smith's ECG Blog

SEPTEMBER 16, 2024

After resuscitation and defibrillation , there were no more episodes of TdP. Below is the patient’s 12 lead ECG following defibrillation. Learning points : Takotsubo can lead to cardiac arrest from ventricular arrhythmia. But there are 3 other wide beats in the tachycardia that begins with beat #6 ( = beats #7; 13,14 ).

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Cardiac Arrest Cardiomyopathy Arrhythmia Atrial Fibrillation 71

Dr. Smith's ECG Blog

JANUARY 15, 2024

We can see enough to make out that the rhythm is sinus tachycardia. Tachycardia is unusual for OMI, unless the patient is in cardiogenic shock (or getting close). A bedside ultrasound should be done to assess volume and other etiologies of tachycardia, but if no cause of type 2 MI is found, the cath lab should be activated NOW.

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Chest Pain Blog Critical Care Arrhythmia 67

Dr. Smith's ECG Blog

OCTOBER 20, 2024

The arrhythmia spontaneously converted before defibrillation was achieved. Just prior to arrival he fell out of consciousness with the below ECG on the monitor. ECG #3 The above ECG shows a polymorphic VT at a rate of about 180 BPM.

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Cardiogenic Shock Ischemia Chest Pain Cardiac Arrest 127

Cardiometabolic Health Congress

AUGUST 30, 2024

Arrhythmias : A leadless pacemaker-defibrillator system provides antitachycardia pacing for ventricular tachycardia in patients with subcutaneous ICDs. Coronary Heart Disease : Initiate beta-blockers in patients with acute MI and normal LVEF unless contraindicated or if they have heart failure.

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Cardiac Rehabilitation Heart Failure Quality of Life Aortic 52

Wellnest

JUNE 19, 2023

Similarly, you may use our , app to adjust the paper speed along with amplification to read the slightest changes, especially for conditions like tachycardia and bradycardia. Alternatively, it also helps enhance arrhythmia management with coronary artery disease. It improves the prediction model for myocardial scar mass.

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Technology Cardiac Arrest Innovation Coronary Artery Disease 52

Dr. Smith's ECG Blog

APRIL 29, 2020

She was never defibrillated. Therefore, she underwent temporary pacemaker placement and overdrive pacing at a rate of 90 bpm to keep the heart rate up in order to prevent these PVCs triggering ventricular arrhythmia. Hypokalemia was unlikely because she continued to have ventricular arrhythmia despite of correcting electrolytes.

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Cardiac Arrest Defibrillator Ischemia Tachycardia 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. Prior to Mizusawa's study, it was thought that the incidence of syncope, arrhythmia, or SCD in this cohort was low [7]. There was a 0.9% Circulation, 117, 1890–1893. [3]:

Heart Rhythm 52

Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52

Dr. Smith's ECG Blog

NOVEMBER 30, 2019

Is it ventricular tachycardia (VT) due to hyperK or is it a supraventricular rhythm with hyperK? Here are other posts on hyperK, large calcium doses for hyperK, and ventricular tachycardia in hyperK Weakness, prolonged PR interval, wide complex, ventricular tachycardia Very Wide and Very Fast, What is it? How would you treat?

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Cardiac Arrest Tachycardia Nursing Ultrasound 40

Frontiers in Cardiovascular Medicine

DECEMBER 12, 2024

BackgroundCatecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare inherited arrhythmia disorder characterized by ventricular arrhythmia triggered by adrenergic stimulation.Case presentationA 9-year-old boy presented with convulsions following physical exertion. 720G>A (p.ArG2401His). Nadolol was initially started.

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Tachycardia Exercise Arrhythmia Atrial Fibrillation 52

Journal of the American Heart Association

MARCH 8, 2024

BackgroundCurrent guidelines recommend placing an implantable cardiac defibrillator for patients with cardiac sarcoidosis and a severely impaired left ventricular ejection fraction (LVEF) of ≤35%. Methods and ResultsWe retrospectively analyzed 401 patients with cardiac sarcoidosis without sustained ventricular arrhythmia at diagnosis.

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Sudden Cardiac Death Document Arrhythmia Defibrillator 40

European Journal of Heart Failure

NOVEMBER 14, 2023

The review first focuses on SCD incidence in cardiomyopathies and then summarizes established and emerging risk factors for life-threatening arrhythmias/SCD. Syncope, LGE on CMR, inducible sustained VT at PES, pathogenic mutations in LMNA, PLN, FLNC, and RBM20.

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Sudden Cardiac Death Cardiomyopathy Risk Factors Heart Failure 40

Dr. Smith's ECG Blog

DECEMBER 5, 2019

There is sinus tachycardia and also a large R-wave in aVR. Drug toxicity , especially diphenhydramine , which has sodium channel blocking effects, and also anticholinergic effects which may result in sinus tachycardia, hyperthermia, delirium, and dry skin. Her temperature was 106 degrees. As part of the workup, she underwent an ECG.

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Sudden Cardiac Death Heart Rhythm Article Tachycardia 52

Dr. Smith's ECG Blog

DECEMBER 27, 2024

This is an arrhythmia until proven otherwise. This proves AV dissociation, and by extension ventricular tachycardia. The note lists a diagnosis of "tachycardia," which is described as "narrow complex." (The Repeat ECG obtained in ER: Fortunately for the patient, his ventricular tachycardia spontaneously resolved.

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Tachycardia Stent Stents Hospital 121

Dr. Smith's ECG Blog

DECEMBER 31, 2024

Soon after the witnessed occlusion, the patient suffered ventricular fibrillation arrest, from which he was immediately resuscitated with 1 defibrillation. The note documents that the first view of the LCX showed 99%, TIMI 2 flow, but then (before intervention) was seen to fully occlude in real time (100%, TIMI 0).

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Ischemia Tachycardia Chest Pain STEMI 80