Table 2

Features of variant forms of constrictive pericarditis

Effusive–constrictive pericarditis Pericardial effusion is present, sometimes loculated, with constriction by the visceral pericardium
Occult constrictive pericarditisHaemodynamics are normal at rest, but assume the features of constriction after an acute volume load
Localised constrictive pericarditisConstriction limited to the right or left ventricle. Ventricular interdependence reduced or absent
Transient constrictive pericarditisDuring the resolution of acute pericarditis with effusion, constriction develops, but then resolves spontaneously over a few weeks