Fig. 1

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 2 day 12). B TTE performed on the day of peak of cardiac biomarkers, (cycle 2 day 14). C TTE performed approximately 1 year before admission. D TTE performed at the day of discharge, (cycle 2 day 21). E Cardiac biomarkers showing troponin peak. Troponin and CK-MB declined after initiation of high-dose steroid