Dr. Smith's ECG Blog

JANUARY 5, 2020

Here is the computer interpretation: ATRIAL FIBRILLATION WITH RAPID VENTRICULAR RESPONSE WITH ABERRANT CONDUCTION OR VENTRICULAR PREMATURE COMPLEXES LEFT AXIS DEVIATION [QRS AXIS beyone -30] NONSPECIFIC ST and T-WAVE ABNORMALITY The over-reading physician confirmed this diagnosis, which is incorrect. It is not atrial fibrillation.

Atrial Fibrillation 52

Atrial Fibrillation Tachycardia Arrhythmia Pulmonary 52

Open Heart

SEPTEMBER 19, 2024

Background The value of empirical superior vena cava isolation (SVCI) following pulmonary vein isolation (PVI) to improve the efficacy of radiofrequency catheter ablation (RFCA) for paroxysmal atrial fibrillation (PAF) remains controversial. RFCA was guided by quantitative AI in both groups.

Atrial Fibrillation 52

Atrial Fibrillation Ablation Atrial Flutter Coronary Artery Disease 52

ECG Guru

SEPTEMBER 13, 2023

Let's first consider the heart rate: with a heart rate of 194 beats/min, the heart rate is too low for atrial flutter (1:1) (except in patients who have been pre-treated with medication), and the rate would be unusually high for atrial flutter with 2:1 conduction.

Atrial Flutter 52

Atrial Flutter Atrial Fibrillation Heart Rhythm Tachycardia 52

ECG Cases

JULY 17, 2018

How can the Bix Rule help distinguish Atrial Flutter from SVT? Why is amiodarone contraindicated in patients with WPW associated with atrial fibrillation? What are the important differences in the approach and treatment of atrial fibrillation vs. atrial flutter? and many more.

Atrial Flutter 52

Atrial Flutter Atrial Fibrillation Tachycardia 52

Journal of Cardiovascular Electrophysiology

JANUARY 15, 2024

Abstract Introduction Atrial fibrillation and atrial flutter originating from the donor s heart is a commonly reported complication post heart transplant. Case A 47-year-old male presented with atrial tachycardia 6 months post heart transplant.

Atrial Fibrillation 40

Atrial Fibrillation Heart Transplant Atrial Flutter Transplant 40

Dr. Smith's ECG Blog

DECEMBER 16, 2018

Wide-complex tachycardia: VT or aberrant, or "other?" The patient had a history of paroxysmal atrial fibrillation and several cardioversions. A wide-complex tachycardia in an older patient must immediately suggest ventricular tachycardia. Instead, the rate of 150, plus the history of AF, suggested atrial flutter.

Tachycardia 52

Tachycardia Atrial Flutter AFIB Atrial Fibrillation 52

Dr. Smith's ECG Blog

DECEMBER 23, 2019

Initial ECG in the ED: Presenting ECG : Wide-complex tachycardia at a rate about 200. This is overwhelmingly likely to be ventricular tachycardia, even if only age and medical history are considered. Nevertheless, the widths of both the QRS complex and the RS duration are similar in both the old ECG and the tachycardia.

Tachycardia 52

Tachycardia Atrial Flutter Cardiomyopathy Atrial Fibrillation 52

Dr. Smith's ECG Blog

AUGUST 23, 2017

Here is his 12-lead ECG: The computer reads supraventricular tachycardia. It is atrial flutter with 2:1 conduction. There are clear flutter waves in lead II across the bottom. Adenosine simply blocks the AV node so that there is no QRS to hide the flutter waves, and they become obvious. What is it?

Atrial Flutter 52

Atrial Flutter Tachycardia Atrial Fibrillation Article 52

Frontiers in Cardiovascular Medicine

MARCH 27, 2024

Case summary A 51-year-old woman with a 36-year history of intermittent palpitations was admitted due to hemodynamically stable ventricular tachycardia (VT). She denied any family history of cardiovascular disease or sudden death.

Arrhythmia 59

Arrhythmia Atrial Flutter Tachycardia Atrial Fibrillation 59

Dr. Smith's ECG Blog

SEPTEMBER 18, 2024

This strip was obtained: Apparent Wide Complex Tachycardia at a rate of 280 What do you think? To me, it was clearly atrial flutter with 1:1 conduction. The rate of 280 is just right for atrial flutter. The waves look like atrial flutter waves, NOT like a wide ventricular complex.

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Atrial Flutter Exercise AFIB Tachycardia 65

Dr. Smith's ECG Blog

NOVEMBER 26, 2018

The rhythm differential for narrow, regular, and tachycardic is sinus rhythm, SVT (encompassing AVNRT, AVRT, atrial tach, etc), and atrial flutter (another supraventricular rhythm which is usually considered separately from SVTs). Therefore this patient is either in some form of SVT or atrial flutter.

Ischemia 52

Ischemia Atrial Flutter Arrhythmia Tachycardia 52

Circulation: Arrhythmia and Electrophysiology

DECEMBER 21, 2023

BACKGROUND:Inflammation may promote atrial fibrillation (AF) recurrence after catheter ablation. Circulation: Arrhythmia and Electrophysiology, Ahead of Print. mg twice daily or placebo for 10 days. mg twice daily or placebo for 10 days. The first dose of the study drug was administered within 4 hours before ablation.

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Atrial Fibrillation Ablation Chest Pain Atrial Flutter 40

Open Heart

JANUARY 20, 2022

No participant demonstrated atrial fibrillation, atrial flutter, sustained supraventricular tachycardia (SVT), sustained ventricular tachycardia or infranodal atrioventricular block. Median monitoring duration was 13.2 (IQR supraventricular ectopic burden and one had a 15.4% ventricular ectopic burden.

COVID-19 52

COVID-19 Arrhythmia Outpatient Atrial Flutter 52

Cardiovascular Diabetology

FEBRUARY 23, 2024

The effects of SGLT2i on atrial fibrillation(AF), atrial flutter(AFL), composite AF/AFL, ventricular fibrillation(VF), ventricular tachycardia(VT), ventricular extrasystoles(VES), sudden cardiac death(SCD) and composite VF/VT/SCD were evaluated. RCTs comparing SGLT2i with placebo were included.

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Sudden Cardiac Death Arrhythmia Atrial Flutter Heart Failure 64

Cardiomatics

APRIL 5, 2024

Sinus tachycardia – sinus rhythm above 100 bpm is a sinus tachycardia. Ventricular tachycardia – more than 7 consecutive complexes originating from ventricles at a rate of > 100 bpm. Supraventricular tachycardia – more than 7 consecutive complexes of supraventricular beats at a rate of > 100 bpm.

Arrhythmia 92

Arrhythmia Tachycardia Bradycardia Heart Rhythm 92

Journal of Cardiovascular Electrophysiology

DECEMBER 7, 2023

Abstract Introduction The use of flecainide and propafenone for medical cardioversion of atrial fibrillation (AF) and atrial flutter/intra-atrial reentrant tachycardia (IART) is well-described in adults without congenital heart disease (CHD).

Congenital Heart Disease 40

Congenital Heart Disease Atrial Fibrillation Congenital Heart Disease 40

Dr. Smith's ECG Blog

AUGUST 3, 2018

There is a narrow complex tachycardia at a rate of 130. ECGs: there is a regular narrow complex tachycardia still at a rate of exactly 130, with no P-waves and also no change since the prehospital ECG. Leads II and aVF appear to have flutter waves. I diagnosed atrial flutter with 2:1 conduction. Is is sinus?

Chest Pain 40

Chest Pain Tachycardia Atrial Flutter Ultrasound 40

Journal of Cardiovascular Electrophysiology

DECEMBER 17, 2024

Abstract Background Dofetilide is a class III antiarrhythmic agent approved for the treatment of atrial fibrillation and atrial flutter. Given the efficacy of other class III agents, it has been used off-label for the treatment of premature ventricular complexes (PVCs) and ventricular tachycardias (VTs).

Tachycardia 40

Tachycardia Heart Disease Atrial Flutter Heart Transplant 40

Journal of Cardiovascular Electrophysiology

DECEMBER 7, 2023

FAAM ablation successfully decreased the recurrence rate of atrial tachyarrhythmia compared with conventional non-PV foci ablation. Abstract Introduction Treatment of recurrent atrial fibrillation (AF) is sometimes challenging due to non-pulmonary vein (PV) foci. The RHYTHMIA system was used to perform all the procedures.

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Ablation Atrial Fibrillation Atrial Flutter Tachycardia 40

Dr. Smith's ECG Blog

MAY 1, 2023

edits by Meyers A woman in her 60s with a history of chronic atrial fibrillation on Eliquis, ESRD on hemodialysis, type-II diabetes mellitus, prior CVA, hypertension, and hyperlipidemia presented to the emergency department with multiple complaints after missing dialysis. They are flutter waves, and the rhythm is 2:1 atrial flutter.

Atrial Flutter 52

Atrial Flutter Tachycardia Arrhythmia Blog 52

AMS Cardiology

JANUARY 16, 2024

Continue reading to learn more about this procedure, its significance in treating atrial fibrillation, and what to expect during treatment. What is Atrial Fibrillation? Before diving into electrical cardioversion, we should understand atrial fibrillation (AF). What Is Cardioversion?

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Atrial Fibrillation Heart Rhythm AFIB Atrial Flutter 52

Journal of Cardiovascular Electrophysiology

OCTOBER 19, 2023

Although the QDOT MICRO™ Catheter was mainly designed for pulmonary vein isolation (PVI) its versatility to treat atrial fibrillation (AF) and other types of arrhythmias was recently evaluated by the FAST and FURIOUS study series and other studies and will be presented in this article.

Arrhythmia 40

Arrhythmia Ablation Atrial Flutter Atrial Fibrillation 40

Journal of Cardiovascular Electrophysiology

NOVEMBER 5, 2024

Procedures were most commonly for atrial fibrillation (52.4%), atrial flutter (10.9%), and atrioventricular nodal re-entrant tachycardia (10.1%). Results 1089 patients were included: MC 718 (65.9%); Fo8 HT 105 (9.6%); Fo8 MOD 266 (24.4%). 01; minor: MC 16.5%, Fo8 HT 12.0%, Fo8 MOD 7.4%, p =.002).

Electrophysiology 40

Electrophysiology Atrial Flutter Atrial Fibrillation Tachycardia 40

Dr. Smith's ECG Blog

OCTOBER 25, 2022

We see a regular tachycardia with a narrow QRS complex and no evidence of OMI or subendocardial ischemia. The differential of a regular narrow QRS tachycardia is sinus tachycardia, SVT, and atrial flutter with regular conduction. There are no P waves preceding the QRS complexes, and no clear flutter waves.

Tachycardia 52

Tachycardia Atrial Flutter Dysrhythmia Ablation 52

Ken Grauer, MD

AUGUST 18, 2023

Atrial fibrillation, atrial tachycardia or atrial flutter with Wenckebach conduction. Although today's patient was asymptomatic with the rhythm shown in ECG #1 — having this frequent amount of PACs is of potential concern, and may increase the risk of developing atrial fibrillation.

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Blog Atrial Fibrillation Arrhythmia Atrial Flutter 78

CardiacWire

DECEMBER 3, 2023

AccurECG provides automated heart rate measurements, supraventricular and ventricular ectopic beat detection, and automated interpretation for 13 different arrhythmias such as atrial fibrillation, atrial flutter, and ventricular tachycardia.

Arrhythmia 52

Arrhythmia Atrial Flutter Reimbursement Atrial Fibrillation 52

Journal of Cardiovascular Electrophysiology

DECEMBER 16, 2024

ABSTRACT Introduction The safety and efficacy of paroxysmal atrial fibrillation (PAF) ablation with the HELIOSTAR multielectrode radiofrequency (RF) balloon catheter have been demonstrated in European studies; data from elsewhere are lacking. Central Illustration. Image is courtesy of Biosense Webster, Inc., All rights reserved.

Atrial Fibrillation 40

Atrial Fibrillation Quality of Life Atrial Flutter Ablation 40

DAIC

MARCH 5, 2024

a global leader in cardiac arrhythmia treatment and part of Johnson & Johnson MedTech , today announced European CE mark approval of the VARIPULSE Platform for the treatment of symptomatic drug refractory recurrent paroxysmal atrial fibrillation ( AF ) using pulsed field ablation (PFA). Atrial Fibrillation. Circulation.

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Ablation Atrial Fibrillation Atrial Flutter Pulmonary 59

Dr. Smith's ECG Blog

MARCH 6, 2020

Here was his ED ECG: There is sinus tachycardia (rate about 114) with nonspecific ST-T abnormalities. There is a large peaked P-wave in lead II (right atrial enlargement) There is left axis deviation consistent with left anterior fascicular block. See my quick review of atrial tachycardia below) The tachycardia spontaneously resolved.

Heart Failure 52

Heart Failure Tachycardia Atrial Flutter Cardiomyopathy 52

Journal of Cardiovascular Electrophysiology

JANUARY 7, 2025

ABSTRACT Typical atrial flutter (AFL), defined as cavotricuspid isthmus (CTI)-dependent macro-re-entrant atrial tachycardia, often causes debilitating symptoms, and is associated with increased incidence of atrial fibrillation, stroke, heart failure, and death.

Atrial Flutter 45

Atrial Flutter Atrial Fibrillation Quality of Life Ablation 45

Dr. Smith's ECG Blog

DECEMBER 20, 2024

Additionally, the patient had no other apparent reason to have sinus tachycardia (such as volume depletion, bleeding, fever). So the most likely rhythm in ECG 1 is ectopic atrial tachycardia. Therefore the first part of ECG 1 shows ectopic atrial tachycardia with biventricular pacing. Point 1: What is PVARP?

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Chest Pain Tachycardia Pacemaker Defibrillator 103

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. Most physicians will automatically be worried about these symptoms. The tracings were considered abnormal in the following cases: 1.

Arrhythmia 52

Arrhythmia Outcomes Risk Factors Chest Pain 52

Journal of Cardiovascular Electrophysiology

JANUARY 27, 2025

ABSTRACT Introduction Freedom from recurrences of atrial tachyarrhythmia (ATA) is suboptimal after pulmonary vein isolation (PVI) in patients with persistent atrial fibrillation (PsAF).

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Atrial Fibrillation Ablation Atrial Flutter Arrhythmia 40

Dr. Smith's ECG Blog

JANUARY 26, 2025

Figure-1: While at first glance the rhythm in Figure-1 might be mistaken for sinus tachycardia in fact, this is not the rhythm. Instead there is 2:1 atrial activity that is best seen in lead V1 ( See Figure-2 ). This is the "Bix Rule" See Pearl #1 in Dr. Figure-2: Colored arrows highlight flutter waves , with 2:1 AV conduction.

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Atrial Flutter Tachycardia AFIB Hospital 67