DDx
Results:
Low Voltage QRS: DDx
Key Points: Definition: Low voltage QRS complexes reflect decreased myocardial electrical amplitude on ECG. Sensitive Definition (Preferred): Limb leads (I + II + III) sum < 15 mm OR precordial…
Wide QRS Bradyarrhythmia: DDx
Key Point Wide QRS bradycardias usually reflect infranodal conduction disease (His–Purkinje or below), making them much more dangerous than narrow QRS bradycardias. These rhythms often lead to hemodynamic instability and…
STEMI vs LVH: DDx
Key Points: Left ventricular hypertrophy (LVH) with strain is one of the most common and dangerous STEMI mimics, particularly in the anterior leads, and is a frequent cause of false-positive…
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