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The positive F wave in lead V1 of typical atrial flutter is caused by activation of the right atrial appendage: Insight from mapping during entrainment from the right atrial appendage

Journal of Cardiovascular Electrophysiology

Abstract Introduction Typical atrial flutter (AFL) is a macroreentrant tachycardia in which intracardiac conduction rotates counterclockwise around the tricuspid annulus. The 12-lead electrocardiogram (ECG) and three-dimensional (3D) electroanatomical maps were analyzed.

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Physical Examination as a Helpful Aid in Decision-Making in Challenging ECGs

Dr. Smith's ECG Blog

An initial electrocardiogram (ECG) is provided below. This physical exam sign is seen with AV dissociation — and results from right atrial contraction against a closed tricuspid valve. His current medication regimen includes apixaban, carvedilol, perindopril, spironolactone, torasemide, dapagliflozin, amiodarone, and ivabradine.

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A young lady with wide complex tachycardia. My first time actually making this diagnosis de novo in real life in the ED!

Dr. Smith's ECG Blog

There is mild-moderate tricuspid valve regurgitation. 1211-1212 CrossRef View Record in Scopus Google Scholar 2 FI Marcus, W Zareba The electrocardiogram in right ventricular cardiomyopathy/dysplasia. How can the electrocardiogram assist in understanding the pathologic and functional changes of the heart in this disease?