Figure 4.
Echocardiographic findings in MIS-C at diagnosis (upper row) and four days after administration of intravenous immunoglobulin (lower row) in the same patient. Upper row (left to right): moderate atrioventricular valve regurgitation (white star); dilated left main coronary artery (red arrow); and left ventricular systolic function [Ejection fraction {EF} of 45% and fractional shortening {FS} of 22%] (highlighted in blue rectangle) . Lower row (left to right): trace atrioventricular valve regurgitation (white star); dilated left main coronary artery (red arrow); and improved left ventricular systolic function [Ejection fraction {EF} of 58% and fractional shortening {FS} 30%] (highlighted in blue rectangle).