Address for Correspondence: Jonathan Lipton, Royal Hobart Hospital, Hobart, Australia Email: firstname.lastname@example.org
Male, 64 years, presents with an exacerbation of asthma. He is treated with nebulized salbutamol.
He has a past history of ischaemic heart disease with percutaneous coronary intervention to the right coronary artery.
Whilst in the emergency department he is noted to have frequent and extensive runs of wide complex tachycardia. The tachycardia is captured on the electrocardiogram below (Fig. 1). The speed of the recording is 25 mm/s.
What is the most likely diagnosis?
Figure 1. A 12-lead electrocardiogram
Josh Hawson, Jonathan Lipton
Royal Hobart Hospital, Hobart, Australia
Conflict of interest: None to declare
Authorship: J.H. and J.L. equally contrıbuted to preparation of quiz
Acknowledgement and funding: None to declare