Figure 3  .

Conventional criteria at cardiac catheterisation. Group 1, patients with constrictive pericarditis; group 2, patients with restrictive cardiomyopathy or other types of cardiomyopathy and a normal pericardium. Although there are significant differences between the two groups, overlap makes it difficult to apply the criteria in an individual case. LVEDP, left ventricular end diastolic pressure; RVEDP, right ventricular end diastolic pressure; RVSP, right ventricular systolic pressure; PA, pulmonary artery; LV, left ventricular; MRA, mean right atrial pressure. Reproduced from Hurrell et al ⁷ with permission of the American Heart Association.