Restrictive cardiomyopathy | Constrictive pericarditis | Restrictive pericarditis | |
---|---|---|---|
Non-invasive | |||
Short IVRT | + | – | + |
Sensitivity to respiration | – | + | – |
Short E wave deceleration time | + | – | + |
E/A ratio > 1.0 | + | ± | + |
Jugular venous pulse | Y descent | X descent | Y descent |
Invasive | |||
Ventricular ED pressures within 6 mmHg | – | + | + |
Peak pressure < 50 mmHg | – | + | – |
RV ED/peak pressure > 0.33 | + | – | + |
IVRT, isovolumic relaxation time; ED, end diastolic; RV, right ventricle.