Footnotes

• Contributors CCO was responsible for the acute treatment of the patient as well as for the writing. SR and SM were responsible for the electrophysiologic study and the catheter ablation of the patient accessory pathway as well as for the supervision of this work.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests None declared.

• Provenance and peer review Not commissioned; internally peer reviewed.