Figure 1.
Reproduced with permission from Voelkel et al.[1] RV dilation changes LV geometry decreasing LV preload and worsening diastolic function. If acute, RV dilation may contribute to pericardial constraint, limiting filling of both ventricles. IPAH = idiopathic pulmonary arterial hypertension; LV = left ventricle; RV = right ventricle.