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A 50-year-old woman with recurrent episodic palpitations presented with hypotension to the emergency department. Her past medical history was inconsequential other than the use of β-blockers for occasional palpitations. A 12-lead surface ECG was taken (figure 1A) and the patient was subsequently cardioverted with 200 J to sinus rhythm (figure 1B). Her biochemical investigations and transthoracic echocardiogram were within normal limits.
Identify the tachycardia and findings in post-cardioversion sinus rhythm ECG (figure 1)?
Ventricular tachycardia and sinus rhythm with right bundle branch block
Ventricular tachycardia and sinus rhythm showing inferior wall myocardial infarction
Antidromic tachycardia and pre-excitation with left accessory pathway
Pre-excited atrial fibrillation and …
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