Video 21.27 Ventricular septal defect and left ventricular outflow track viewed from a parasternal long-axis view
Ventricular septal defect and left ventricular outflow track viewed from a parasternal long-axis view. On the color Doppler clip, the laminar low-velocity flow across the left ventricular outflow tract suggests low systemic output due to high afterload in the presence of a large ventricular communication and lower postductal afterload.