Dr. Smith's ECG Blog

NOVEMBER 26, 2018

The rhythm differential for narrow, regular, and tachycardic is sinus rhythm, SVT (encompassing AVNRT, AVRT, atrial tach, etc), and atrial flutter (another supraventricular rhythm which is usually considered separately from SVTs). Therefore this patient is either in some form of SVT or atrial flutter. If so, why?

Ischemia 52

Ischemia Atrial Flutter Arrhythmia Tachycardia 52

Dr. Smith's ECG Blog

DECEMBER 16, 2018

The patient had a history of paroxysmal atrial fibrillation and several cardioversions. Instead, the rate of 150, plus the history of AF, suggested atrial flutter. A close inspection of lead II showed P or flutter waves at a rate of about 300 bpm, also supporting atrial flutter. Note of Caution!

Tachycardia 52

Tachycardia Atrial Flutter AFIB Atrial Fibrillation 52

Dr. Smith's ECG Blog

JULY 5, 2024

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. BP was 100 systolic.

Atrial Flutter 116

Atrial Flutter Tachycardia Atrial Fibrillation AFIB 116

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.

Tachycardia 52

Tachycardia Atrial Flutter Cardiomyopathy Atrial Fibrillation 52

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. Recently diagnosed with intermittent paroxysmal atrial fibrillation but no EKGs available to confirm.

Atrial Flutter 66

Atrial Flutter Exercise AFIB Tachycardia 66

Dr. Smith's ECG Blog

JANUARY 9, 2024

She also has a hx of paroxysmal atrial fibrillation and is on oral anticoagulant treatment. 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. The last echocardiography 12 months ago showed HFmrEF.

Tachycardia 123

Tachycardia Electrophysiology Atrial Flutter Ischemia 123

Dr. Smith's ECG Blog

MARCH 6, 2020

There is atrial activity before every QRS, but that activity has negative polarity, so it is not sinus rhythm. There are clearly no flutter waves, so it is not atrial flutter (a "macro-reentrant" atrial tachycardia) Is it AVNRT originating at the superior pole of the AV node, resulting in a retrograde P-wave before the QRS?

Heart Failure 52

Heart Failure Tachycardia Atrial Flutter Cardiomyopathy 52

DAIC

OCTOBER 30, 2024

With this approval, Medtronic now offers two PFA technologies available for patients with Afib. With a short learning curve for experienced physicians, the possibilities are boundless for the treatment of Afib," said Vivek Reddy, M.D., tim.hodson Wed, 10/30/2024 - 13:42 Oct.

Ablation 52

Ablation AFIB Atrial Fibrillation Atrial Flutter 52

Dr. Smith's ECG Blog

JANUARY 26, 2025

Figure-2: Colored arrows highlight flutter waves , with 2:1 AV conduction. Patient history: It turns out that todays patient is an 80-something year old man with longstanding hypertension and paroxysmal atrial fibrillation. The AFib had been well controlled on Flecainide for many years. VT as a proarrhythmic effect.

Atrial Flutter 69

Atrial Flutter Tachycardia AFIB Hospital 69