Echocardiogram short axis showing RV pressure overload in advanced pulmonary hypertension

The short axis view at the level of the mitral chordae from a patient with advanced pulmonary hypertension shows substantial morphologic changes, including severe hypertrophy of the right ventricular (RV) wall, dilation of the RV chamber, and hypertrophy of the right side of the septum. The septum is flattened, strongly suggesting pressure overload in the RV; this septal shape imparts a "D shape" to the left ventricle (LV), which has relatively thin walls.