Table 2.

Ventricular diastolic parameters

Variable	Control (n = 10)	COPD (n = 16)	P-value
MV E (cm/s)	70 ± 17	65 ± 16	NS
MV A (cm/s)	49 ± 15	72 ± 18	<0.01
MV E/A ratio	1.46 ± 0.30	0.97 ± 0.29	<0.01
MV lat e’ (cm/s)	11.7 ± 3.2	10.5 ± 1.6	NS
MV lat a’ (cm/s)	9.0 ± 1.6	13.6 ± 4.0	<0.001
MV sept e’ (cm/s)	9.9 ± 2.7	9.5 ± 1.8	NS
MV sept a’ (cm/s)	8.7 ± 1.6	11.2 ± 2.0	<0.01
MV sep E/e’ ratio	7.2 ± 2.1	6.9 ± 1.8	NS
MV lat E/e’ ratio	6.1 ± 2.6	6.2 ± 1.8	NS
TV E (cm/s)	43 ± 7	44 ± 13	NS
TV A (cm/s)	25 ± 7	41 ± 34	<0.05
TV E/A ratio	1.7 ± 0.5	1.0 ± 0.3	<0.01
TV e’ (cm/s)	13 ± 4	11 ± 4	NS
TV E/e’ ratio	3.3 ± 0.9	4.1 ± 1.6	NS

All values are reported as means with corresponding ± SD.

SD, standard deviation; NS, not significant; COPD, chronic obstructive pulmonary disease; MV, mitral valve; TV, tricuspid valve; E, peak early diastolic filling velocity; A, peak late atrial filling velocity.