Table 3 Right ventricular structure and function indices in overall obstructive sleep apnoea patients before and after 6 months of continuous positive airway pressure (CPAP) treatment.

Right atrium mm

23.9 ± 3.0

23.7 ± 3.2

NS

RVFWD mm (5–8)

7.1 ± 2.1

6.2 ± 1.7

0.001

RVEDD mm (9–26)

25.4 ± 3.6

25.0 ± 3.3

NS

E-velocity (m/s)

0.4 ± 0.1

0.6 ± 0.1

0.0001

A-velocity (m/s)

0.6 ± 0.13

0.5 ± 0.9

0.001

E/A ratio (>1)*

0,7 ± 0.1

1.2 ± 0.2

0.0001

IVRT ms (<100)*

106.9 ± 24.0

91.1 ± 18.6

0.001

DT ms (<220)*

245.5 ± 61.0

210.2 ± 46.8

0.001

VPR cm*s^-1 (>55)*

41.1 ± 9.9

60.9 ± 10.2

0.0001

MPI % (39 ± 5)*

62.2 ± 9.3

47.3 ± 8.4

0,0001