Ablation Atrial Flutter Blog 
Dr. Smith's ECG Blog
DECEMBER 24, 2023
Atrial flutter with 2:1 conduction. The atrial flutter rate is approximately 200 bpm, with 2:1 AV conduction resulting in ventricular rate almost exactly 100 bpm. Further history revealed she had new onset atrial flutter soon after her aortic surgery, and was put on flecainide approximately 1 month ago.
Ken Grauer, MD
MARCH 12, 2023
NOTE: The ECG in Figure-1 has been recorded at the usual 25mm/second speed — but with the Cabrera format ( Please see my Editorial Note near the top of the page in ECG Blog #365 for review of the basics of this recording system ). PEARL # 3: Atrial Flutter with 1:1 AV conduction is rare! ECG Blog #287 — More on AFlutter.
Dr. Smith's ECG Blog
SEPTEMBER 18, 2024
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. Reverted to atrial fibrillation with RVR while in the hospital 3 times and needed cardioversion.
Dr. Smith's ECG Blog
JANUARY 9, 2024
The ECG was interpreted as showing atrial flutter with 2:1 conduction. The heart rate could be compatible with that of a 2:1 conducted atrial flutter. Also, lead I could give the initial impression of showing flutter waves. After atrial rhythm/SR was restored the patient slowly improved.
Dr. Smith's ECG Blog
DECEMBER 23, 2019
The WCT is interrupted by a series of variable-morphology QRS complexes, with atrial flutter waves note in II, III, and aVF. Detail of Flutter waves The rate of the flutter waves matches the rate of the WCT (about 200/m), proving that the presenting WCT had been 1:1 atrial flutter.
Dr. Smith's ECG Blog
OCTOBER 25, 2022
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. There is no need to immediately refer today’s patient to EP for ablation. She had an echocardiogram which was normal.
Dr. Smith's ECG Blog
NOVEMBER 12, 2019
M y A pproach to this R hythm : I reviewed the basics for rhythm interpretation in the October 16, 2019 Case from Dr. Smith’s ECG Blog. Does this mean that there is no atrial activity in Figure-1 ? In such cases — use of an alternative lead system, such as a L ewis L ead may enhance atrial activity and facilitate rhythm determination.
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