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

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

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

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

Journal of Cardiovascular Electrophysiology

DECEMBER 16, 2024

Methods The primary effectiveness endpoint (PEE) was 12-month freedom from documented atrial fibrillation/atrial flutter/atrial tachycardia plus freedom from acute procedural failure, nonstudy catheter failure, repeat ablation failure, direct current cardioversion (DCCV), and Class I/III antiarrhythmic drug (AAD) failure.

Atrial Fibrillation 40

Atrial Fibrillation Quality of Life Atrial Flutter Ablation 40

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. Annotated Bibliography For an excellent overview of ED Syncope management , see this article by Kessler C et al.

Arrhythmia 52

Arrhythmia Outcomes Risk Factors Chest Pain 52

Dr. Smith's ECG Blog

MARCH 6, 2025

Smith comments : Wide complex tachycardia. The differential diagnosis of WCT is: 1) Sinus tachycardia with "aberrancy" (in this case RBBB and LAFB), but there are no P-waves and the QRS morphology is not typical of simple RBBB/LAFB. Also, if the rate is constant, not wavering up and down, it is highly unlikely to be sinus tachycardia.

Tachycardia 95

Tachycardia Dysrhythmia ICU Pulmonary 95