Evolution of electrocardiographic manifestations mimicking acute coronary syndrome secondary to hypoparathyroidism: a case report

Figures

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  Figure 1. Emergency electrocardiograms. (A) Sinus rhythm, essentially normal tracing. (B) Sinus bradycardia with T-wave inversions (0.2–0.9 mV) in leads I, aVL, and V1–V5, and a QTc interval of 600 ms.

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  Figure 2. Coronary angiography and intravascular ultrasound (IVUS) findings. (A) No significant stenosis observed in the right coronary artery. (B) Coronary angiography showing 50% stenosis in the mid-segment of the left anterior descending (LAD) artery, with a suspected thrombus shadow. (C) IVUS examination revealing a minimum lumen area of 3.07 mm2 and a plaque burden of 41% in the mid-LAD segment.

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  Figure 3. Serial electrocardiograms during hospitalization. (A) Day 1: sinus rhythm, with T-wave inversions (0.2–0.7 mV) in leads I, aVL, and V1–V6, and a QTc interval of 518 ms. (B) Day 2: sinus rhythm, with T-wave inversions (0.15–0.5 mV) in the same leads, and a QTc interval of 492 ms. (C) Day 3: sinus rhythm, with T-wave inversions (0.1–0.4 mV) in the same leads, and a QTc interval of 478 ms. (D) Day 5: sinus rhythm, with flattened T waves in the same leads, and a QTc interval of 457 ms. (E) Day 7: sinus rhythm, essentially normal electrocardiogram(QTc440 ms).