Diastolic Dysfunction

Measurements, waveforms, and miscellaneous criteria to categorize diastolic dysfunction.

normal EF e’ septal

< 7 cm/s

normal EF e’ lateral

< 10 cm/s

normal EF E/e’ (lat and sept wall)

> 14

normal EF E/e’ lateral

> 13

normal EF E/e’ septal

> 15

normal EF LAVi

> 34 mL/m²

normal EF TR velocity

> 2.8 m/s

Normal LA

< / = 34 mL/m²

Mild LAE

35 - 41 mL/m²

Moderate LAE

42 - 48 mL/m²

Severe LAE

> 48 mL/m²

Bernoulli equation

RVSP / SPAP = 4V² + RAP

RAP 3 (normal)

IVC not dilated and collapses >50% on inspiration

RAP 15 (increased)

IVC > 2.1 and collapses < 50%

RAP 8 (intermediate)

either dilated or non-collapsing IVC

impaired RV diastolic function

E/A < 0.8

pseudonormal RV diastolic function

E/A 0.2 - 2.1
E/e’ > 6

restrictive RV diastolic function

E/A > 2.1
DT < 120ms

low EF grade 1 DD with normal LAP

E/A </= 0.8 and E </= 50 cm/s