HeartRhythm

APRIL 30, 2024

Intravascular cardiac pacemakers are an established therapy for bradycardia. Recently, a new class of leadless pacemakers have mitigated some of the complications related to pacemaker leads.

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Pacemaker Bradycardia 40

ECG Guru

NOVEMBER 20, 2023

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

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Bradycardia Pacemaker 52

HeartRhythm

APRIL 30, 2024

The 2nd human genetically-modified cardiac xenotransplant occurred 9/20/23 at the University of Maryland with patient requiring placement of a permanent pacemaker on post-op day three for low cardiac output with relative bradycardia. After multi-disciplinary discussion the decision was made to proceed with an epicardial approach.

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Pacemaker Bradycardia 40

HeartRhythm

APRIL 30, 2024

Leadless pacemaker has established itself as an important therapeutic modality in management of selected patients with symptomatic bradycardia.

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Pacemaker Bradycardia 40

DAIC

JANUARY 19, 2024

The BACKBEAT pivotal study will evaluate the efficacy and safety of atrioventricular interval modulation (“AVIM”) therapy (also known as BackBeat CNT), for the treatment of pacemaker-indicated patients with uncontrolled hypertension despite the use of antihypertensive medications. Orchestra BioMed and Medtronic, Inc. Kowal, M.D.,

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Pacemaker Hypertension Blood Pressure Kidney Disease 105

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).

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Bradycardia Tachycardia Pacemaker 75

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.

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Defibrillator Bradycardia Pacemaker Tachycardia 72

Dr. Smith's ECG Blog

MAY 5, 2023

My thoughts were the following: ECGs #1 and #2 showed a completely unreliable sinus pacemaker, with presumed high-grade 2nd-degree AV block — and frequent resultant pauses of over 2 seconds ( that would have been even longer had it not been for intermittent relief from the atrial escape focus ). What Does this All Mean?

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Bradycardia Cardiac Arrest Arrhythmia Pacemaker 52

American College of Cardiology

FEBRUARY 6, 2024

The following are key points to remember from a review article on cardiac implantable electronic devices (CIEDs), which include pacemakers for bradycardia, biventricular pacemakers for heart failure, and implantable cardioverter–defibrillators (ICDs) for the treatment of sudden cardiac death:

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Sudden Cardiac Death Pacemaker Bradycardia Defibrillator 56

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?

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Defibrillator Bradycardia Pacemaker Article 49

Dr. Smith's ECG Blog

NOVEMBER 9, 2018

I tell the residents: "The pacemaker is just common sense: if there is no beat, it provides one; if there is one, it keeps itself from pacing." This is similar to Ken Grauer's comment at the bottom: "What would I do if I were a pacemaker?" This made me realize that pacemaker function is not as well understood as I thought.

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Bradycardia Pacemaker Ischemia 52

HeartRhythm

FEBRUARY 27, 2024

Bradyarrhythmias including sinus bradycardia and atrioventricular (AV) block are frequently encountered in endurance athletes especially at night.

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Bradycardia Electrophysiology Pacemaker Arrhythmia 40

EMS 12-Lead

MAY 15, 2024

Crew notifies the received ED of an incoming post-arrest patient and notes a sinus bradycardia on their monitor, as seen in Figure 2. Figure 2 : This rhythm shows a sinus bradycardia at a rate between 30 and 40bpm. The crew immediately initiated TCP at a rate of 70bpm and slowly increased the current, as shown in Figure 3.

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Atrial Fibrillation Bradycardia Pacemaker Cardiac Arrest 132

HeartRhythm

MARCH 7, 2024

A newborn male was delivered via cesarean section at term due to acute fetal distress and fetal bradycardia, necessitating emergency pacemaker implantation. Physical examination revealed dysmorphic facial features and syndactyly in both upper and lower limbs.

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Bradycardia Electrocardiogram Pacemaker Hospital 40

Ken Grauer, MD

OCTOBER 4, 2024

To improve visualization — I've digitized the original ECG using PMcardio ) MY Thoughts on the ECG in Figure-1: This is a challenging tracing to interpret — because there is marked bradycardia with an irregular rhythm and a change in QRS morphology. Figure-1: The initial ECG in today's case. ( The QRS complex is wide ( ie, >0.10

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Blog Bradycardia Arrhythmia Pacemaker 103

Dr. Smith's ECG Blog

JANUARY 19, 2020

Resuscitation was initiated and this ECG was obtained: Likely AFib (irregularly irregular) with bradycardia. She was intubated and a transvenous pacemaker was inserted with good capture. In addition to marked bradycardia — could there be high-grade AV block? Atropine produced no response. She received PR aspirin.

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Bradycardia STEMI AFIB Pacemaker 52

ECG Guru

OCTOBER 11, 2023

If the patient is showing signs of poor perfusion, we would stop here and prepare to increase the rate with a temporary pacemaker (transvenous or transcutaneous). There is no P wave in front of each QRS, so this is not sinus bradycardia. Why is the rate so slow?

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Bradycardia Pacemaker 98

Journal of Cardiovascular Electrophysiology

MARCH 3, 2024

Complete left bundle branch block (CLBBB)-like QRS morphology of right ventricular pacing at pacemaker implantation satisfying the American Heart Association/American College of Cardiology Foundation/Heart Rhythm Society criteria of CLBBB was associated with development of pacing induced cardiomyopathy.

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Cardiomyopathy Pacemaker Heart Rhythm Atrial Fibrillation 40

Heart BMJ

DECEMBER 15, 2023

Reflex syncope is defined as a transient loss of consciousness due to a neurally mediated reflex causing sudden-onset vasodilation and bradycardia, leading to a steep decrease in blood pressure and cerebral hypoperfusion. Thus, once the aetiology is established, further diagnostic tests are seldom performed.

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Blood Pressure Bradycardia Pacemaker Arrhythmia 40

Dr. Smith's ECG Blog

JUNE 27, 2024

EMS reports intermittent sinus tachycardia and bradycardia secondary to some type of heart block during transport. They knew she would need a pacemaker unless some transient and reversible cause was discovered. Once this happens, of course, the patient will require temporary or permanent pacemaker as soon as possible.

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Blog Pacemaker Bradycardia Tachycardia 115

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.

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Blog Bradycardia Arrhythmia Tachycardia 78

Cardiomatics

APRIL 5, 2024

Interpreting the waves and detecting abnormalities: Typically, the heart conducts electricity in a pathway starting in the sinoatrial node (SA), our heart’s “natural pacemaker”, located in the wall of the right atrium. Sinus bradycardia – sinus rhythm below 60 bpm is a sinus bradycardia.

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Arrhythmia Tachycardia Bradycardia Electrocardiogram 92

ECG Cases

JUNE 15, 2020

He suggests when you might pull the trigger on giving empiric calcium treatment based on the ECG finding in this month's ECG Cases.

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Bradycardia Pacemaker 52

EMS 12-Lead

MARCH 30, 2024

This is demonstrated ( Figure 5 ) by the gap in arrows at the bottom of the strip, signifying that the demand pacemaker has recognized an underlying rhythm (in this case, artifact from a moving ambulance). The artifact fools the pacemaker into thinking the rhythm is native.

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Cardiac Arrest Pacemaker Pulmonary Bradycardia 124

Ken Grauer, MD

JANUARY 20, 2024

Looking first at the long-lead II rhythm strip — there is significant bradycardia , with a heart R ate just under 40/minute. The patient may need a pacemaker. But the point to emphasize — is that it should only take seconds to recognize that there is bradycardia from significant AV block. =

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Blog Bradycardia STEMI Download 95

Dr. Smith's ECG Blog

JUNE 19, 2024

Three months prior to this presentation, he received a pacemaker for severe bradycardia and syncope due to sinus node dysfunction. The atrial lead of the patient’s newly implanted pacemaker has taken over the rhythm, as his native sinus rate has dropped below 60 BPM. This EKG seems to lack it.

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Chest Pain Pericarditis Pacemaker STEMI 62

Dr. Smith's ECG Blog

MARCH 22, 2024

I will leave more detailed rhythm discussion to the illustrious Dr. Ken Grauer below, but this use of calipers shows that the rhythm interpretation is: Sinus bradycardia with a competing (most likely junctional) rhythm. preceding each of the fascicular beats — indicating a faster rate for the escape rhythm compared to the sinus bradycardia ).

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Chest Pain STEMI Bradycardia Ischemia 107

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.

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Bradycardia Atrial Fibrillation Pacemaker Risk Factors 52

All About Cardiovascular System and Disorders

MAY 2, 2024

Athlete’s bradycardia due to increased parasympathetic tone and decreased sympathetic tone is a well-known observation. Though sinus bradycardia is usual, other abnormalities like sinus arrhythmia, sinus arrest, wandering atrial pacemaker and coronary sinus rhythm have been described.

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Exercise Cardiomyopathy Blood Pressure Physiology 40

Dr. Smith's ECG Blog

JULY 21, 2024

There was no evidence bradycardia leading up to the runs of PMVT ( as tends to occur with Torsades ). If there had been — a temporary atrial pacemaker could have been considered as a way of increasing the heart rate to suppress a bradycardia-dependent arrhythmia ("overdrive pacing").

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Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 108

Dr. Smith's ECG Blog

NOVEMBER 11, 2023

For MORE on Some of the Concepts I Comment On: Re the ECG findings in HCM ( H ypertrophic C ardio M yopathy ) — See My Comment at the bottom of the page in the October 28, 2023 post in Dr.

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Stroke Strokes Chest Pain Cardiomyopathy 72

All About Cardiovascular System and Disorders

MAY 21, 2024

But subcutaneous ICD cannot provide bradycardia and antitachycardia pacing as a transvenous ICD. of patients were free from leadless pacemaker related major complications. Subcutaneous implantable cardioverter defibrillator was an innovation meant to reduce the lead related problems of conventional transvenous ICDs.

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Pacemaker Defibrillator Bradycardia Arrhythmia 52

Dr. Smith's ECG Blog

JANUARY 13, 2024

Written by Willy Frick A man in his 70s with a history of HFrEF and sick sinus syndrome s/p dual chamber pacemaker placement was admitted for overnight observation following outpatient placement of a mitral valve clip. This is unambiguous evidence of pacemaker malfunction. Imagine the pacemaker is set at a minimum rate of 60.

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Pacemaker Bicuspid/Mitral Blood Pressure Hospital 96

Dr. Smith's ECG Blog

FEBRUARY 27, 2023

In fact, sometimes the sinus node is working and acting as a pacemaker but no P waves are visible!! These T-waves are tall but have a narrow base and a corresponding flat ST segment (see lead V4). Also, there are no definite P-waves and this is another result of hyperkalemia. This is called sino-ventricular rhythm. The patient was treated.

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Tachycardia Document Blog Bradycardia 52

Dr. Smith's ECG Blog

AUGUST 9, 2024

Automatic activity refers to enhanced pacemaking function (typically from a non sinus node source), for example atrial tachycardia. Briefly, triggered activity refers to an additional depolarization after the initial depolarization and is mediated chiefly by calcium. The most common triggered arrhythmia is Torsades de Pointes.

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Chest Pain Arrhythmia Myocardial Infarction STEMI 82

Wellnest

DECEMBER 21, 2022

A fast heartbeat is called tachycardia, while a slow heartbeat is called bradycardia in medical terms. ECG testing is also carried out to see how medicines work during treatment and the pacemaker's functioning. Arrhythmia In simple words, arrhythmia refers to an irregular heartbeat.

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Cardiac Arrest Heart Attack Heart attacks Atrial Fibrillation 52

EMS 12-Lead

JUNE 1, 2022

He received a permanent pacemaker during the subsequent inpatient stay. plaque disruption), the T waves still manifest markings of a previous state of suboptimal coronary flow that resolved: Type II supply-demand mismatch in the setting of extreme bradycardia. Hospital transport was unremarkable.

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Heart Failure Myocardial Infarction Bradycardia Cardiomyopathy 52