Fig. 1

Comparison of electrocardiograms (ECGs) before (B) and after (A) anti-inflammatory treatment. (A) The ECG revealed a ventricular rate of 219 beats per minute, demonstrating a regular rhythm, normal QRS waveform, consistent PR and RR intervals, and retrograde P’ waves observed in lead aVR. (B) Repeated ECGs showed normal sinus rhythm with normal PR and QT intervals and the absence of SVT’s δ waves