Figure 1 A-C: Serial ECG tracings; A. initial tracing was done on the presentation in the ICU showing an acute inferior (II, III, and aVF; red arrows) ST-segment elevation myocardial infarction (STEMI) and reciprocal ST-depression changes in leads (I, aVL, and V2-V5; blue arrows). B. tracing using V34 and V4R was done within 3 minutes of the above initial tracing. It is showing no right ventricular involvement. C. tracing was done within 20 minutes of the initiation of streptokinase IVI showing good resolution in the inferior ST-segment elevation with normalization of most reciprocal ST-depression changes in leads (I and V2-V5). There is a Wavy double sign or Yasser’s sign in I (lime and light blue arrows). and Wavy triple sign or Yasser’s sign-in II leads (lime, light blue, and red arrows).
Figures at a glance