ECG Cases

APRIL 6, 2021

In this ECG Cases we review 10 patients who presented with bradycardia, introduce an approach to reversible causes using the BRADI mnemonic and guide you through how to use the ECG to guide management. The post ECG Cases 20 – Approach to Bradycardia and the BRADI Mnemonic appeared first on Emergency Medicine Cases.

Bradycardia 52

Bradycardia 52

Frontiers in Cardiovascular Medicine

OCTOBER 31, 2024

BackgroundThere have been few instances of symptomatic bradycardia-arrhythmia in the context of area postrema syndrome (APS), and some of them have been implanted permanent pacemakers. A total of 21 cases were identified in the final analysis (including our case). The average age was 51 years old and female patients accounted for 38.1%.

Bradycardia 52

Bradycardia Pacemaker Arrhythmia 52

Frontiers in Cardiovascular Medicine

JANUARY 10, 2024

Here, a rare repeated sinus bradycardia event due to escitalopram is first reported. She began to take escitalopram and lorazepam due to depression, but sinus bradycardia (93.7% Escitalopram was deemed to be a highly possible cause of sinus bradycardia according to its Naranjo's Algorithm score.

Bradycardia 64

Bradycardia Heart Disease Heart Rhythm Electrocardiogram 64

Medical Xpress - Cardiology

SEPTEMBER 13, 2024

Men who perform well in the cross-country ski race Vasaloppet are at increased risk of having abnormally low heart rates and pacemakers later in life. However, the researchers behind the study did not uncover any link to increased mortality, rather the opposite—the skiers lived longer than the general population.

Pacemaker 81

Pacemaker Bradycardia Research 81

Dr. Smith's ECG Blog

MAY 5, 2023

The "good" news — Treatment with naloxone will probably resolve the bradycardia. Figure-4: Review of the 2 long lead rhythm strips from today's case.

Bradycardia 52

Bradycardia Cardiac Arrest Arrhythmia Pacemaker 52

Circulation

NOVEMBER 11, 2024

Electrocardiogram (ECG) and telemetry revealed junctional bradycardia with heart rate in 30s and sinus pauses (5-7 seconds). He was admitted for further workup of bradycardia. His home medications included metoprolol succinate 25mg daily which was held given bradycardia. Initial laboratory analysis was unremarkable.

Bradycardia 40

Bradycardia Coronary Artery Disease Kidney Disease Outpatient 40

Open Heart

JULY 17, 2023

Objective We conducted a systematic review evaluating AF burden and bradycardia requiring permanent pacemaker (PPM) implantation and report any predictive risk factors identified. Study outcomes included AF or bradycardia requiring therapy. Databases included Embase, Medline, PubMed, Web of Science, CINAHL and Cochrane.

Bradycardia 52

Bradycardia Atrial Fibrillation Pacemaker Risk Factors 52

Medical Xpress - Cardiology

MAY 18, 2024

Wireless implantable cardioverter-defibrillators (ICDs) eliminate the lead-related complications that come with a wired ICD, but they are unsuitable for patients with ventricular tachycardia, when the heart beats too quickly, or bradycardia, when the resting heart rate is seen as low.

Bradycardia 101

Bradycardia Defibrillator Tachycardia 101

HeartRhythm

APRIL 30, 2024

Bradycardia-dependent block is characterized by slowed or blocked conduction through His-Purkinje (HPS) fibers. We describe a case of bradycardia-dependent block after transcatheter aortic valve replacement (TAVR). A proposed mechanism is the diseased HPS develops spontaneous depolarization during phase 4 of the action potential.

Bradycardia 40

Bradycardia TAVR Aortic valve Aortic 40

Med Page Today

MAY 20, 2024

(MedPage Today) -- BOSTON -- A leadless pacemaker reliably communicated with a subcutaneous implantable cardioverter-defibrillator (S-ICD) to deliver anti-tachycardia (ATP) and bradycardia pacing, the MODULAR ATP study showed. In terms of safety.

Defibrillator 97

Defibrillator Bradycardia Pacemaker Tachycardia 97

HeartRhythm

FEBRUARY 20, 2025

It was never compared to other methods of dyssynchrony assessment in bradycardia patients. Ultra-high-frequency ECG (UHF-ECG) is a non-invasive tool visualizing the ventricular activation sequence.

Bradycardia 40

Bradycardia 40

ECG Guru

NOVEMBER 20, 2023

Let's analyze the ECG. It comes from a pacemaker patient whose pacemaker was briefly switched to VVI at 30 bpm due to a stimulation threshold test. The first 3 beats show a sinus rhythm with a frequency of approx. This is followed by a premature ventricular contraction (PVC).

Bradycardia 52

Bradycardia Pacemaker 52

Dr. Smith's ECG Blog

JANUARY 19, 2020

Resuscitation was initiated and this ECG was obtained: Likely AFib (irregularly irregular) with bradycardia. In addition to marked bradycardia — could there be high-grade AV block? On arrival in the ED, she was profoundly hypotensive, nearly obtunded, and bradycardic.

Bradycardia 52

Bradycardia STEMI AFIB Pacemaker 52

HeartRhythm

APRIL 29, 2025

I even resorted to 1 partial agonists to manage bradycardia.1 Working at the Hammersmith Hospital in London in the late 1980s, I recognized that patients with heart failure (HF) often deteriorated after pacemaker implantation.

Heart Failure 40

Heart Failure Bradycardia Bicuspid/Mitral Pacemaker 40

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.

Arrhythmia 45

Arrhythmia Bradycardia Electrocardiogram Electrophysiology 45

HeartRhythm

SEPTEMBER 27, 2023

As the most common cause of syncope, vasovagal syncope (VVS) is the result of cerebral hypoperfusion caused by sudden-onset bradycardia and mediated by parasympathetic overdrive.1 1 VVS is generally categorized into three types: cardioinhibitory, vasodepressive and mixed type.

Bradycardia 40

Bradycardia 40

HeartRhythm

MARCH 31, 2025

It has been adopted to use a population level cut off value of heart rate to diagnose bradycardia and frequently use a similar population level heart rate as the programmed pacemaker rate (e.g., the default nominal setting of 60 bpm).

Bradycardia 40

Bradycardia Pacemaker 40

Dr. Smith's ECG Blog

NOVEMBER 9, 2018

For instance, if there were inappropriate sinus bradycardia at less than 60 bpm, the atrial pacer would take over if it is programmed to wait 1 second before firing. The atrial lead would pace if, after a programmed period of time, it did not sense an atrial beat (usually 1 second, corresponding to a rate of 60).

Bradycardia 52

Bradycardia Pacemaker Ischemia 52

HeartRhythm

APRIL 30, 2024

We present a case series of two young patients with obesity-related comorbidities necessitating sleeve gastrectomy which provoked symptomatic sinus bradycardia. While weight loss following bariatric surgery often yields resolution of comorbidities related to obesity, it also presents unanticipated changes in underlying physiology.

Bradycardia 40

Bradycardia Obesity Physiology 40

Journal of Cardiovascular Electrophysiology

FEBRUARY 13, 2024

Methods Consecutive patients with bradycardia indicated for pacing from 2016 to 2022 were prospectively followed for the clinical endpoints of heart failure (HF)-hospitalizations and all-cause mortality at 2 years. CSP should be preferred over VSP or RVP during pacing for bradycardia.

Bradycardia 40

Bradycardia Physiology Pacemaker Heart Failure 40

HeartRhythm

MARCH 31, 2025

Conduction system pacing (CSP) aims to replace right ventricular pacing (RVP) in treating patients with bradycardia. However, there is a lack of data about the differences in outcomes between CSP and RVP.

Bradycardia 40

Bradycardia Outcomes 40

Frontiers in Cardiovascular Medicine

APRIL 3, 2025

The patient, who complained of dizziness, was initially diagnosed with bradycardia and aortic paravalvular leak. The history of repeated open-heart surgery and the application of central venous catheterization during anesthesia increased the risk of VA injuries and its complications of the VJAVF and VAPA.

Open-Heart Surgery 52

Open-Heart Surgery Bradycardia Aortic Pacemaker 52

HeartRhythm

APRIL 30, 2024

Among them, bradycardia and pause detection could be erroneous during sleep as the heart rate may slow down significantly leading to potential inappropriate diagnosis. Insertable cardiac monitors (ICMs) are used widely for long term monitoring and diagnosis of various cardiac arrhythmia.

Bradycardia 40

Bradycardia Arrhythmia 40

ECG Guru

JULY 30, 2024

The ECG shows an example of a patient with bradycardia/tachycardia syndrome. Patients with bradycardia/tachycardia syndrome usually require a heart pacemaker to prevent the heart rate from becoming too slow. Initially, a sinus rhythm with a heart rate of approx. 70 bpm is seen. 120 bpm here). 120 bpm here).

Bradycardia 69

Bradycardia Tachycardia Pacemaker 69

Frontiers in Cardiovascular Medicine

FEBRUARY 26, 2025

To manage the complex comorbidities, we opted for dual-chamber pacemaker implantation.

Pacemaker 52

Pacemaker Cardiomyopathy Bradycardia Ablation 52

Dr. Smith's ECG Blog

JANUARY 2, 2025

Discontinue all negative chronotropic agents, since the risk of torsade is much higher with bradycardia or pauses. As described above by Dr. Smith Pacing in today's case is an effective intervention as doing so prevents the bradycardia and pauses that are likely to precipitate additional episodes of Torsades de Pointes. (

Tachycardia 116

Tachycardia Cardiomyopathy Blog Bradycardia 116

Dr. Smith's ECG Blog

AUGUST 11, 2024

There’s competing sinus bradycardia and junctional rhythm, with otherwise normal conduction, borderline right axis, normal R wave progression and voltages. Significant bradycardia ( rate in the 40s/minute ) — is present throughout. What do you think? It’s unclear if the paramedic ECGs were seen or missed in the ED.

Chest Pain 98

Chest Pain STEMI Bradycardia Article 98

American College of Cardiology

OCTOBER 17, 2024

Does prolonged, high-intensity endurance training increase the risk of bradycardia requiring pacemaker implantation and ultimately the long-term mortality risk?

Pacemaker 60

Pacemaker Bradycardia Article 60

Frontiers in Cardiovascular Medicine

OCTOBER 9, 2024

The primary outcome was ventricular arrhythmias, the secondary outcomes were bradycardia and atrial fibrillation (AF).ResultsOur 0.66], but increased the risk of in-hospital bradycardia (OR 2.88, 95% CI 1.02–8.17) 0.66], but increased the risk of in-hospital bradycardia (OR 2.88, 95% CI 1.02–8.17) 8.17) compared with propofol.

Arrhythmia 52

Arrhythmia Bradycardia Atrial Fibrillation Hospital 52

Ken Grauer, MD

JUNE 2, 2023

to 1828 msec. ) — which corresponds to a variation in the rate of sinus bradycardia from 36-to-33/minute. This makes sense given that the underlying rhythm in today's case appears to be marked sinus bradycardia and arrhythmia , with a ventricular escape rhythm appearing when the SA node rate drops below 33/minute.

Blog 78

Blog Bradycardia Arrhythmia Chest Pain 78

HeartRhythm

MARCH 31, 2025

MODULAR ATP, a multicenter, international trial, assesses a subcutaneous ICD (S-ICD) in wireless communication to a leadless pacemaker (LP) capable of pace-terminating ventricular arrhythmias (VAs). The LP may also function as a standalone pacemaker. This analysis reports 12-month outcomes.

Bradycardia 40

Bradycardia Pacemaker Tachycardia Arrhythmia 40

ECG Guru

SEPTEMBER 10, 2023

A common cause of pauses and bradycardia are non-conducted PACs, which generally do not require treatment. Therefore, it is important to differentiate between pauses or bradycardia that require treatment.

Bradycardia 52

Bradycardia 52

HeartRhythm

MARCH 31, 2025

Many variables impact an individuals normal resting heart rate (HR) and one of them is allometric-related body height. The population-based studies found that personal height-based normal resting HR varies in a wide range with the average HR being significantly higher than the pacemakers default nominal lower pacing rate (LPR).

Quality of Life 40

Quality of Life Bradycardia Pacemaker 40

HeartRhythm

JANUARY 30, 2025

Left bundle branch block (LBBB) is a frequent complication of transcatheter aortic valve implantation (TAVI) and was shown to predict advanced atrio-ventricular block and pacemaker implantation (PI).1,2 1,2 Previous studies focused on persistent TAVI-induced LBBB. There are limited data on TAVI-related intermittent LBBB.

Aortic valve 40

Aortic valve Aortic Bradycardia Pacemaker 40

Ken Grauer, MD

OCTOBER 13, 2023

Even if we stopped here — We could conclude the following: There is marked bradycardia in today's rhythm ( ie, Heart rate in the low 30s ). Finally — If today's patient does not have significant underlying coronary disease — then her bradycardia with AV block may be the result of SSS ( S ick S inus S yndrome ).

Blog 159

Blog Arrhythmia Bradycardia Download 159

ECG Guru

DECEMBER 20, 2023

The first two beats are sinus node beats, there is a sinus bradycardia with approx. After this, the sinus bradycardia is re-established. We see the limb leads + V1/V2. Then there is a sinus arrest with a pause of 3000 ms, which is interrupted by a junctional escape beat.

Bradycardia 52

Bradycardia 52

American College of Cardiology

MAY 24, 2024

Is a novel modular pacing–defibrillator system, consisting of a leadless pacemaker in wireless communication with a subcutaneous implantable cardioverter–defibrillator (ICD), able to effectively and safely provide antitachycardia and bradycardia pacing?

Defibrillator 50

Defibrillator Bradycardia Pacemaker Article 50