Remove Electrocardiogram Remove Tachycardia Remove Tricuspid
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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

She was awake, alert, well perfused, with normal mental status and overall unremarkable physical exam except for a regular tachycardia, possible rales at both bases, some mild RUQ abdominal tenderness. Thus, I believe it is a regular, monomorphic, wide complex tachycardia. There is mild-moderate tricuspid valve regurgitation.

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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. While the initial impression might not immediately suggest ventricular tachycardia (VT), a closer examination raises suspicion. This physical exam sign is seen with AV dissociation — and results from right atrial contraction against a closed tricuspid valve.

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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.