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Clinical introduction
A 46-year-old man with no significant medical history was seen for palpitations. A Holter monitor was placed and following recording was obtained (figure 1).
Question
What is the most likely diagnosis?
Atrioventricular (AV) nodal reentrant tachycardia with aberrancy
Antidromic and orthodromic tachycardia
Orthodromic reentrant tachycardia with aberrancy
Ventricular tachycardia
For the answer see page 1601
From the question on page 1561
Answer: C
Orthodromic reentrant tachycardia with aberrancy using a left side accessory pathway.
Holter …
Footnotes
Contributors VK: Manuscript preparation and initial diagnosis; ME: manuscript preparation; and WF: image contribution.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.