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A 56-year-old man was referred for an electrophysiology opinion following an unexplained episode of syncope leading to a motor vehicle accident. Routine baseline investigations including an echocardiogram were normal. Following admission, the telemetry strip below was recorded (Figure 1). What is the mechanism of tachycardia?
What is the mechanism of the tachycardia? (Figure 1)
Supraventricular tachycardia (SVT) with aberrancy
Antidromic AV re-entry tachycardia
Supraventricular tachycardia with a bystander accessory pathway (AP)
For the answer see page 1986
From the question on page 1932
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