case_images: PMC7657701_01
case_images: PMC7657701_02
case_images: Electrocardiogram (ECG) findings in patient 2.
case_images: CRIID2020-8854868.001.jpg
case_images: PMC7657701_02_CRIID2020-8854868.001.jpg
case_images: fig1
case_images: Of note, patient 2 had an abnormal electrocardiogram (ECG) with third-degree atrioventricular block that, during hospitalization, interchanged with first-degree block and Mobitz I (Figure 1), even though he was completely asymptomatic.