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ATTR-ACT Post Hoc Analysis: AFib/AFL Not Predictive of Mortality in Patients With ATTR-CM

American College of Cardiology

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.

AFIB 60
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Wide-complex tachycardia: VT, aberrant, or "other?"

Dr. Smith's ECG Blog

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. There appear to be flutter waves at a rate of 300. Flecainide encourages new atrial flutter.

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Wide Complex Tachycardia -- VT, SVT, or A Fib with RVR? If SVT, is it AVNRT or AVRT?

Dr. Smith's ECG Blog

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.

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What Happens During Electrical Cardioversion?

AMS Cardiology

Electrical cardioversion may be recommended for you if you have certain types of arrhythmias, such as: Atrial fibrillation (AFib): This is the most common type of arrhythmia, and it can cause symptoms like dizziness, fatigue, and difficulty breathing. Atrial flutter: This is a rapid but regular heart rhythm often progressing to AFib.

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Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide.

Dr. Smith's ECG Blog

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?

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Wide-complex tachycardia that didn’t follow the rules

Dr. Smith's ECG Blog

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.

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Cardiomatics guide: Analyzing arrhythmias made easy

Cardiomatics

AFIB/AFL – atrial fibrillation or atrial flutter episodes. Supraventricular tachycardia – more than 7 consecutive complexes of supraventricular beats at a rate of > 100 bpm. Supraventricular rhythm (SVR) – more than 3 supraventricular beats that do not meet the criteria for AF.