Table 1.

Diastolic dysfunction grades.

Grade 1: abnormal relaxation

E/A < 0.8

DT > 280 m·sec

E/Ea < 8

Grade 2: pseudonormalization

E/A = 1–1.5

DT = 160–240 m·sec

Ea < 7 cm/sec

Grades: 3 and 4

E/A > 2

E/Ea > 15

DT < 160 m·sec

Ea < 7 cm/sec

E/A: the velocity of the diastolic early filling wave (E) divided by the velocity of the late or atrial filling wave (A).

DT: deceleration time; Ea: early filling wave.