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Table 2 2D echocardiographic RA volume and function between HCM patients and normal subjects (mean ± SD)

From: Right atrial function assessed by volume-derived values and speckle tracking echocardiography in patients with hypertrophic cardiomyopathy

Variable

Values

P Value

HCM(32)

Normal(34)

RAVmax (ml)

34.19 ± 9.16

36.44 ± 7.70

0.282

RAVpre (ml)

22.94 ± 8.87

22.26 ± 5.01

0.704

RAVmin (ml)

13.66 ± 6.87

12.09 ± 4.11

0.261

Total RAEV (ml)

20.53 ± 5.14

24.35 ± 5.96

0.007

Passive RAEV (ml)

11.25 ± 4.54

14.18 ± 4.48

0.001

Active RAEV (ml)

9.28 ± 3.52

10.18 ± 3.01

0.270

Total RAEF(%)

61.15 ± 11.04

66.87 ± 9.06

0.024

Passive RAEF(%)

33.84 ± 13.06

38.68 ± 8.09

0.073

Active RAEF(%)

41.46 ± 10.31

46.29 ± 11.14

0.075

RA expansion index(%)

178.04 ± 78.18

224.25 ± 90.91

0.031

  1. Abbreviations: RAVmax maximum RA volume, RAVpre precontraction RA volume, RAVmin minimum RA volume; Total RAEV total RA emptying volume, Active RAEV active RA emptying volume, Passive RAEV passive RA emptying volume; Total RAEF total RA emptying fraction; Active RAEF active RA emptying fraction, Passive RAEF passive RA emptying fraction