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 23, 2019

They had a history of non-ischemic cardiomyopathy (EF 30%), as well as PCI with one stent. The WCT is interrupted by a series of variable-morphology QRS complexes, with atrial flutter waves note in II, III, and aVF. The subsequent EP study could not induce VT, only atrial fibrillation.

Tachycardia 52

Tachycardia Atrial Flutter Cardiomyopathy Atrial Fibrillation 52

Dr. Smith's ECG Blog

JANUARY 9, 2024

The patient is female in her 80s with a medical hx of previous MI with PCI and stent placement. 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 last echocardiography 12 months ago showed HFmrEF.

Tachycardia 102

Tachycardia Electrophysiology Atrial Flutter Ischemia 102