Figure 8.

Case 5: R-SVC draining into the LA. Transesophageal echocardiogram with midesophageal view at 0° in grayscale (A), midesophageal view at 77° with color Doppler (B), and a three-dimensional zoom image in the so-called surgical view of the mitral valve (C). Transesophageal echocardiogram demonstrated a markedly dilated coronary sinus (A-C) with significant blood flow (B). As shown in other cases, a dilated coronary sinus suggests an atypical pattern of venous drainage and is usually consistent with diagnosis of a persistent L-SVC. Videos 6 through 8 correspond to this figure. AV, Aortic valve; MV, mitral valve; RV, right ventricle; TV, tricuspid valve.