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Table 3 Left atrium volumes and strains in the four left ventricular geometric patterns

From: The impact of left ventricular geometry on left atrium phasic function in obstructive sleep apnea syndrome: a multimodal echocardiography investigation

 

NG (n = 110)

CR (n = 56)

CH (n = 32)

EH (n = 23)

P

2DE LAV variables

LAVmax (ml)

39.14 ± 5.40

41.81 ± 8.04a

49.26 ± 4.47ab

45.90 ± 5.56ab

 < 0.001

LAVImax (ml/m2)

20.66 ± 3.05

21.88 ± 4.45

27.66 ± 3.29ab

24.42 ± 4.01abc

 < 0.001

LAVmin (ml)

13.25 ± 2.40

14.90 ± 3.43a

19.04 ± 5.13ab

16.95 ± 3.40a

 < 0.001

LAVImin (ml/m2)

6.99 ± 1.27

7.80 ± 1.90

10.71 ± 3.12ab

9.04 ± 2.17ac

 < 0.001

LAVpre (ml)

21.36 ± 4.03

23.72 ± 5.74a

31.75 ± 4.02ab

28.51 ± 4.04ab

 < 0.001

LAVIpre (ml/m2)

11.25 ± 2.04

12.40 ± 3.01a

17.82 ± 2.59ab

15.20 ± 2.94abc

 < 0.001

LA TotEV (ml)

25.90 ± 3.86

26.91 ± 5.42

30.22 ± 4.63ab

28.95 ± 3.10a

0.005

LA PassEV (ml)

17.79 ± 2.60

18.09 ± 3.12

17.51 ± 1.92

17.39 ± 2.37

0.655

LA ActEV (ml)

8.11 ± 2.61

8.82 ± 3.30

12.71 ± 3.88ab

11.56 ± 1.83ab

 < 0.001

3DE LAV variables

LAVmax (ml)

46.85 ± 4.80

49.00 ± 5.47a

60.60 ± 4.66ab

53.77 ± 3.78abc

 < 0.001

LAVImax (ml/m2)

24.86 ± 3.85

25.84 ± 4.68

34.05 ± 3.98ab

28.60 ± 3.59abc

 < 0.001

LAVmin (ml)

18.04 ± 3.83

18.89 ± 2.95

25.57 ± 3.31ab

21.95 ± 2.74abc

 < 0.001

LAVImin (ml/m2)

9.60 ± 2.43

9.96 ± 2.13

14.37 ± 2.23ab

11.69 ± 1.96abc

 < 0.001

LAVpre (ml)

27.78 ± 3.71

30.11 ± 5.51a

44.36 ± 5.76ab

35.25 ± 5.54abc

 < 0.001

LAVIpre (ml/m2)

14.72 ± 2.49

15.87 ± 3.66

24.93 ± 3.91ab

18.78 ± 3.68abc

0.018

LA TotEV (ml)

28.80 ± 4.63

30.11 ± 3.84

35.03 ± 4.19ab

31.82 ± 1.66ac

 < 0.001

LA PassEV (ml)

19.06 ± 4.93

18.89 ± 3.82

16.24 ± 2.97ab

18.53 ± 2.89

0.011

LA ActEV (ml)

9.74 ± 4.15

11.21 ± 4.43

18.79 ± 4.53ab

13.29 ± 3.88ac

 < 0.001

  1. LAVmax: left atrium maximum volume; LAVImax: left atrium maximum volume index; LAVmin: left atrium minimum volume; LAVImin: left atrium minimum volume index; LAVpre: left atrium pre-contraction volume; LAVIpre: left atrium pre-contraction volume index; LA TotEV: left atrium total emptying volume; LA PassEV: left atrium passive emptying volume; LA ActEV: left atrium active emptying volume
  2. ap < 0.05 for normal geometry; bp < 0.05 for concentric remodeling; cp < 0.05 for concentric hypertrophy