AFIB Atrial Flutter Cardiomyopathy 
American College of Cardiology
MAY 6, 2024
Although atrial fibrillation/atrial flutter (AFib/AFL) are common manifestations of transthyretin amyloid cardiomyopathy (ATTR-CM), a post hoc analysis of the ATTR-ACT study, published April 30 in JACC: CardioOncology, found they do not predict all-cause mortality.
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. Now you CAN on occasion see PVCs during reentry SVTs that do not convert the SVT.
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.
Dr. Smith's ECG Blog
MARCH 6, 2020
The absence of any wall motion abnormality makes ischemic cardiomyopathy very unlikely. There is atrial activity before every QRS, but that activity has negative polarity, so it is not sinus rhythm. The new onset cardiomyopathy was thought to be due to both drug/alcohol use and to Tachycardia-Induced Cardiomyopathy.
Dr. Smith's ECG Blog
NOVEMBER 15, 2020
So this is an extremely slow atrial flutter with 2:1 conduction. Atrial rate 146, ventricular rate 73. I suspect that the amyloid slows the conduction of the atrial flutter. It turned out that he had a history of slow atrial flutter. Atrial arrhythmias ( especially AFib or AFlutter ).
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. She presented to the emergency department after a couple of days of chest discomfort.
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