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WPW Syndrome and Pseudo-MI patterns
Key Points WPW Pattern Mimics: Wolff-Parkinson-White (WPW) syndrome can produce an ECG pattern that mimics conditions such as myocardial infarction, ventricular bigeminy, accelerated idioventricular rhythm, and electrical alternans. ST Segment…
Hyperkalemia Emergencies
Key Points Severe Hyperkalemia Mimics Several Life-Threatening Conditions: Hyperkalemia can produce a wide range of ECG abnormalities that resemble unstable brady and tachy arrhythmias, STEMI, and can also cause pacemaker…
Arrhythmogenic Cardiomyopathy (ACM)
Key Points Definition & Terminology: Arrhythmogenic Cardiomyopathy (ACM), previously known as Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia (ARVC/D), is an inherited disorder characterized by progressive fibrofatty replacement of the ventricular myocardium, predominantly…
Spiked Helmet Sign (SHS)
Key Points The Spiked Helmet Sign (SHS) is a rare but important ECG pattern characterized by pseudo ST-segment elevation that starts before the onset of the QRS complex. SHS is…
LVH vs. STEMI
Key Points LVH Mimicry: Left ventricular hypertrophy (LVH) can mimic anterior coronary occlusion and is a common cause of “false-positive” cath lab activations. Diagnostic Challenge: LVH with strain pattern can…
Early Repolarization vs. STEMI
Key Points Differentiation Challenge: Early repolarization (ER) is a benign ECG pattern often seen in healthy young individuals, characterized by ST segment elevation that can mimic STEMI and acute pericarditis….
Upright T waves in V1
Key Point Normal T Wave in V1: The normal ECG typically shows a flat or inverted T-wave in lead V1. Upright T-Wave Abnormality: An upright T-wave in V1 (TV1) should…
WPW with Antidromic SVT
Key Points WPW Syndrome: Wolff-Parkinson-White (WPW) syndrome is a condition characterized by ventricular pre-excitation due to a congenital accessory pathway in patients with symptomatic arrhythmias. ECG Recognition: The classic WPW…
WPW with Orthodromic SVT
Key Points WPW Syndrome: Wolff-Parkinson-White (WPW) syndrome is a condition where ventricular pre-excitation occurs due to a congenital accessory pathway in patients with symptomatic arrhythmias. ECG Recognition: The WPW ECG…
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