Bradycardia, Pacemaker and Tachycardia

SSS

ECG Guru

JULY 30, 2024

The ECG shows an example of a patient with bradycardia/tachycardia syndrome. After a further pause of just under 2000 ms, 2 sinus node beats follow, which merge into a sinus tachycardia or atrial tachycardia (heart rate approx. Initially, a sinus rhythm with a heart rate of approx. 70 bpm is seen. 120 bpm here).

Bradycardia

Bradycardia Tachycardia Pacemaker

Leadless Pacing Wirelessly Linked to Subcutaneous Defibrillator Hits Targets for ATP

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

Defibrillator Bradycardia Pacemaker Tachycardia

Cardiomatics guide: Analyzing arrhythmias made easy

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 tachycardia – sinus rhythm above 100 bpm is a sinus tachycardia.

Arrhythmia

Arrhythmia Tachycardia Bradycardia Electrocardiogram

What kind of AV block is this? And why does she develop Ventricular Tachycardia?

Dr. Smith's ECG Blog

JANUARY 23, 2024

Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. Isoprenalin was discontinued, and a temporary transveous pacemaker was implanted. The patient stabilized following pacemaker placement. The following ECG was recorded during one of these episodes of VT.

Tachycardia

Tachycardia Arrhythmia Heart Disease Sudden Cardiac Death

A woman in her 50s with multiple episodes of syncope

Dr. Smith's ECG Blog

JUNE 27, 2024

EMS reports intermittent sinus tachycardia and bradycardia secondary to some type of heart block during transport. It is hard to make out P waves but you can see them best in V2, and notches in the T waves in other leads - this is a sinus tachycardia with a very long PR interval indicating first degree block.

Blog

Blog Pacemaker Bradycardia Tachycardia

Rationale and design of the NEO-NORMAL-AF study examination of the usefulness of implantable loop recorder for arrhythmia detection including atrial fibrillation in heart failure with non-reduced ejection fraction cases: a pilot study

Open Heart

JULY 28, 2023

Secondary endpoints are 30 s or more persistent supraventricular tachycardia and ventricular tachycardia, 3 s or more persistent pause, bradycardia with 40 beats per minutes or lower heart rate, AF burden, all-cause death, cardiovascular death, hospital readmission due to exacerbation of HF, acute coronary syndrome, ischaemic or haemorrhagic stroke, (..)

Atrial Fibrillation

Atrial Fibrillation Arrhythmia Heart Failure Tachycardia

Cardioneuroablation for pediatric patients with functional sinus node dysfunction and paroxysmal atrioventricular block

Journal of Cardiovascular Electrophysiology

DECEMBER 1, 2023

Abstract Introduction Severe transitory episodes of bradycardia with subsequent syncope in children are common, and generally portend a benign prognosis. with one documented SP after termination of atrial tachycardia at the 3-month follow-up. Post-CNA, the median longest pause was 1.3 s s (range 0.8–2.2) with 0 documented pauses.

Pediatrics

Pediatrics Document Bradycardia Pacemaker

ECG Blog #382 — What Does the Holter Show?

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

Blog Bradycardia Arrhythmia Tachycardia

What are treatment options for this rhythm, when all else fails?

Dr. Smith's ECG Blog

JULY 21, 2024

This progressed to electrical storm , with incessant PolyMorphic Ventricular Tachycardia ( PMVT ) and recurrent episodes of Ventricular Fibrillation ( VFib ). There was no evidence bradycardia leading up to the runs of PMVT ( as tends to occur with Torsades ). He required multiple defibrillations within a period of a few hours.

Arrhythmia

Arrhythmia Cardiogenic Shock Bradycardia Defibrillator

What are these hyperacute T waves, with STE and T-wave inversion in aVL, and STD in inferior leads?

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!! Descriptive analysis of the ECG in today's case reveals a regular, narrow tachycardia at ~130/minute , without clear sign of sinus P waves. But the rate is ~130/minute — which is a bit fast for sinus tachycardia.

Tachycardia

Tachycardia Document Blog Bradycardia

Why is ECG machine use? What diseases can EKG monitor detect?

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.

Cardiac Arrest

Cardiac Arrest Heart Attack Heart attacks Atrial Fibrillation

46 year old with chest pain develops a wide complex rhythm -- see many examples

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.

Chest Pain

Chest Pain Arrhythmia Myocardial Infarction STEMI

ECG Blog #439 — How Many Possibilities?

Ken Grauer, MD

JULY 18, 2024

It's important to appreciate that we can not rule out the possibility that this rhythm represents Mobitz II 2nd-degree AV block, in which case the patient will need a pacemaker ( See ECG Blog #236 — for review on the ECG diagnosis of the 2nd-degree AV Blocks ).

Blog

Blog Arrhythmia Bradycardia Pacemaker

Cardiac Arrest. What does the ECG show? Also see the bizarre Bigeminy.

Dr. Smith's ECG Blog

APRIL 29, 2020

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. The ultimate reason for the long QT was never definitively determined.

Cardiac Arrest

Cardiac Arrest Defibrillator Ischemia Tachycardia

Emergency Department Syncope Workup: After H and P, ECG is the Only Test Required for Every Patient.

Dr. Smith's ECG Blog

APRIL 8, 2015

If the patient has Abnormal Vital Signs (fever, hypotension, tachycardia, or tachypnea, or hypoxemia), then these are the primary issue to address, as there is ongoing pathology which must be identified. Thus, if there is documented sinus bradycardia, and no suspicion of high grade AV block, at the time of the syncope, this is very useful.

Arrhythmia

Arrhythmia Outcomes Risk Factors Chest Pain

Cardiovascular Update

SSS

Leadless Pacing Wirelessly Linked to Subcutaneous Defibrillator Hits Targets for ATP

Cardiomatics guide: Analyzing arrhythmias made easy

What kind of AV block is this? And why does she develop Ventricular Tachycardia?

A woman in her 50s with multiple episodes of syncope

Rationale and design of the NEO-NORMAL-AF study examination of the usefulness of implantable loop recorder for arrhythmia detection including atrial fibrillation in heart failure with non-reduced ejection fraction cases: a pilot study

Cardioneuroablation for pediatric patients with functional sinus node dysfunction and paroxysmal atrioventricular block

ECG Blog #382 — What Does the Holter Show?

What are treatment options for this rhythm, when all else fails?

What are these hyperacute T waves, with STE and T-wave inversion in aVL, and STD in inferior leads?

Why is ECG machine use? What diseases can EKG monitor detect?

46 year old with chest pain develops a wide complex rhythm -- see many examples

ECG Blog #439 — How Many Possibilities?

Cardiac Arrest. What does the ECG show? Also see the bizarre Bigeminy.

Emergency Department Syncope Workup: After H and P, ECG is the Only Test Required for Every Patient.

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