A 58-year-old man presented to the emergency room with squeezing chest pain and palpitations. Electrocardiography (ECG) showed wide QRS tachycardia with a heart rate of 210 bpm and an absence of P waves.
A 58-year-old man presented to the emergency room with squeezing chest pain and palpitations. Electrocardiography (ECG) showed wide QRS tachycardia with a heart rate of 210 bpm and an absence of P waves.
A 58-year-old man presented to...