2022 Atrial Flutter Tachycardia 
Dr. Smith's ECG Blog
JULY 17, 2023
There is a regular narrow complex tachycardia. Thus, it is supraventricular tachycardia. It is important to remember that SVT includes Sinus Tachycardia! Sometimes even Wide Complex Tachycardia is Sinus. See this case in which Lewis leads were necessary to figure this out: Wide Complex Tachycardia.
Dr. Smith's ECG Blog
JANUARY 9, 2024
She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. The ECG was interpreted as showing atrial flutter with 2:1 conduction. Answer : The ECG above shows a regular wide complex tachycardia. The heart rate could be compatible with that of a 2:1 conducted atrial flutter.
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.
Dr. Smith's ECG Blog
JULY 16, 2024
There are 2 atrial "bumps" for every QRS. Here I put arrows: Arrows shows slow atrial flutter waves. I favor the P s, Q s, 3 R Approach — as a simple acronym to facilitate recall of the 5 KEY Parameters for rhythm interpretation ( See My Comment in the October 25, 2022 post in Dr. Smith’s ECG Blog ). Look at V1.
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). The unit of analysis was each episode of AF/IART.
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.
Dr. Smith's ECG Blog
FEBRUARY 6, 2025
During observation in the ED the patient had multiple self-terminating runs of Non-Sustained monomorphic Ventricular Tachycardia (NSVT). This patient very likely has some form of idiopathic ventricular tachycardia. Of the ventricular outflow tract tachycardias (RVOT-VT) makes up 80-90%.
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