AFIB Atrial Flutter Tachycardia 
Dr. Smith's ECG Blog
MARCH 28, 2024
male with pertinent past medical history including Atrial fibrillation, atrial flutter, cardiomyopathy, Pulmonary Embolism, and hypertension presented to the Emergency Department via ambulance for respiratory distress and tachycardia. Description : Regular Wide Complex Tachycardia at a rate of about 160.
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.
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.
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
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.
Dr. Smith's ECG Blog
APRIL 23, 2019
Are the wide complexes due to a supraventricular rhythm (AVNRT or Atrial flutter or atrial fib) with aberrancy? Or are they due to ventricular tachycardia (VT). The P EARL — is that when AFib is rapid, parts of the tracing often look regular — but are not truly regular when measured with calipers.
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