2020 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
JULY 5, 2024
There is a regular wide complex tachycardia. A fully upright P-wave is typical atrial activity of atrial flutter as seen in V1. See these example cases of upright P-waves: Case Continued Thus, I was all but certain that this was atrial flutter. If it is flutter, it will reveal the underlying flutter waves.
Ken Grauer, MD
OCTOBER 10, 2024
QUESTIONS: Is this rhythm too fast to be sinus tachycardia? Are flutter waves hidden within the QRS and T waves? However, until such time that we know for certain — I think it best to simply describe what we see: PEARL # 1: Realize that for any tachycardia — there are 6 Parameters that need to be assessed. s in Figure-2 ).
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.
Ken Grauer, MD
DECEMBER 23, 2023
RBBB is no longer seen after conversion to sinus rhythm — which supports our suspicion that the intermittent RBBB conduction seen every-other-beat during the tachycardia ( in Figure-1 ) was rate-related. Note that QRS morphology after conversion to sinus rhythm is very similar to QRS morphology of odd-numbered beats during the tachycardia.
Dr. Smith's ECG Blog
MAY 1, 2023
First, we have a narrow-complex, regular tachycardia, with a rate of about 135-140. This narrows our differential for the rhythm down to sinus tachycardia, paroxysmal supraventricular tachycardia (PSVT, or SVT), and atrial flutter. They are flutter waves, and the rhythm is 2:1 atrial flutter.
Expert insights. Personalized for you.
98 
Let's personalize your content