PMC9541115_01
Electrocardiogram on presentation shows normal sinus rhythm, regular rate, and an incomplete right bundle branch block.
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F1
See Figure 1 for initial electrocardiogram.
Parasternal long-axis view, also at https://youtu.be/KEMSPVBHueM.. Apical 4-chamber view with color Doppler, also at https://youtu.be/cypEgrn5Ut0.. Subcostal view of the right and left atria, also at https://youtu.be/saQGbf_37Ts.. Consider the options and find the answer in this video quiz, also at https://youtu.be/EqjQCqCdgZI.. Consider the options and find the answer in this video quiz, also at https://youtu.be/AWA5TOtPqpw.. Consider the options and find the answer in this video quiz, also at https://youtu.be/TL9c2bfAq94.
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V1
His symptoms persisted, so a transthoracic echocardiogram (TTE) was ordered (Videos 1, 2, 3, Figures 2, 3, 4, 5).
Tricuspid regurgitation velocity by continuous wave Doppler.
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F2
His symptoms persisted, so a transthoracic echocardiogram (TTE) was ordered (Videos 1, 2, 3, Figures 2, 3, 4, 5).
Right ventricular outflow tract dimension (3.8 cm).
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F3
His symptoms persisted, so a transthoracic echocardiogram (TTE) was ordered (Videos 1, 2, 3, Figures 2, 3, 4, 5).
Right ventricular outflow velocity: TVI = 18 cm.
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F4
His symptoms persisted, so a transthoracic echocardiogram (TTE) was ordered (Videos 1, 2, 3, Figures 2, 3, 4, 5).
Left ventricular outflow velocity (TVI = 19 cm). The LV outflow diameter was 2.1 cm
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F5
A CMR was performed (Figure 6) that showed a large superior sinus venosus defect (SVD) with partial anomalous venous return (PAPVR) of the right superior, right middle, and a branch of the right inferior pulmonary vein to the superior vena cava.