case_images: PMC11832057_01
case_images: Initial electrocardiogram (ECG) showing sinus rhythm, T wave inversions in lateral precordial leads V4-V5 (with arrows).
case_images: cureus-0017-00000079169-i01.jpg
case_images: PMC11832057_01_cureus-0017-00000079169-i01.jpg
case_images: FIG1
case_images: The initial electrocardiogram (ECG), as depicted in Figure 1, shows a sinus rhythm with new T-wave inversions in lateral precordial leads V4-V5. 
case_images: Electrocardiogram (ECG) while on admission showing atrial fibrillation, with irregular R-R intervals (with arrows).
case_images: cureus-0017-00000079169-i02.jpg
case_images: PMC11832057_01_cureus-0017-00000079169-i02.jpg
case_images: FIG2
case_images: While on admission, he developed new-onset atrial fibrillation (Figure 2).