Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40959-021-00114-x/MediaObjects/40959_2021_114_Fig1_HTML.png)
Two-dimensional transthoracic echocardiography (TTE) with global longitudinal strain (A-D) analysis and cardiac biomarkers (E). A TTE performed at the day of admission at the department of cardiology, at debut of symptoms, (cycle 2Â day 12). B TTE performed on the day of peak of cardiac biomarkers, (cycle 2Â day 14). C TTE performed approximately 1Â year before admission. D TTE performed at the day of discharge, (cycle 2Â day 21). E Cardiac biomarkers showing troponin peak. Troponin and CK-MB declined after initiation of high-dose steroid