PMC9582520_01
ECG before chemotherapy.
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F1
Cardiac screening tests including cardiac biomarkers, ECG (Figure 1), and echocardiography showed normal results before chemotherapy.
ECG on admission showed ST-segment elevation in leads V5 and V6.
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F2
The admission ECG showed sinus rhythm with ST-segment elevation in leads V5 through V9 (Figures 2, 3); laboratory test showed that cardiac troponin-I was 9.4 ng/mL (normal range, 0.00-0.03 ng/mL), CK 922IU/L (normal range, 22-270IU/L), CK-MB 109 IU/L (normal range, 2-25 IU/L);NT-proBNP 8290pg/ml (normal range, 0-349pg/ml).
ECG on admission showed ST-segment elevation in leads V7 through V9.
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F3
The admission ECG showed sinus rhythm with ST-segment elevation in leads V5 through V9 (Figures 2, 3); laboratory test showed that cardiac troponin-I was 9.4 ng/mL (normal range, 0.00-0.03 ng/mL), CK 922IU/L (normal range, 22-270IU/L), CK-MB 109 IU/L (normal range, 2-25 IU/L);NT-proBNP 8290pg/ml (normal range, 0-349pg/ml).
ECG at day 4 showed the elevated ST-segment had fallen back.
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F4
At day 4, the ECG showed that the elevated ST-segment had fallen back (Figures 4, 5).
ECG at day 4 showed the elevated ST-segment in leads V7 through V9 had fallen back.
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F5
At day 4, the ECG showed that the elevated ST-segment had fallen back (Figures 4, 5).
Cardiac magnetic resonance showed late gadolinium enhancement in left ventricular wall.
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F6
At day 8, cardiac magnetic resonance was performed and showed late gadolinium enhancement in the mid layer of the septal segment and the subepicardial layer of the inferolateral wall (Figure 6), with an ejection fraction of 47% (Supplementary Video 11).