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Table 2 Conventional echocardiographic parameters of the systolic and diastolic RV functions of both groups

From: Subtle right ventricular dysfunction in asymptomatic chronic heavy cigarette smokers: a speckle tracking case-control study

Variable

Smokers (mean ± SD)

Non-smokers (mean ± SD)

p value

RV basal diameter, cm

3.5 ± 0.4

3.4 ± 0.5

0.070

RV mid cavity diameter, cm

3.3 ± 0.4

3.2 ± 0.4

0.322

RV longitudinal diameter, cm

7.1 ± 0.6

7.0 ± 0.5

0.603

TAPSE, cm

2.3 ± 0.4

2.2 ± 0.3

0.271

RV S-wave (cm/s)

12.7 ± 2.1

13.0 ± 1.6

0.439

FAC, %

45.7 ± 6.1

48.3 ± 7.5

0.082

IVCT, ms

69.8 ± 9.3

70.6 ± 8.9

0.663

IVRT, ms

66.0 ± 14.6

62.9 ± 11.3

0.288

TEI Index

0.51 ± 0.08

0.48 ± 0.07

0.178

RA area, cm2

15.3 ± 2.9

14.9 ± 2.3

0.422

RA volume, ml

46.7 ± 15.2

43.6 ± 10.3

0.289

RA volume Index, ml/m2

24.6 ± 7.6

23.1 ± 5.6

0.336

TV E wave velocity (cm/s)

59.7 ± 10.7

60.7 ± 11.7

0.703

TV A wave velocity (cm/s)

39.2 ± 7.8

36.7 ± 7.6

0.142

TV E/A

1.57 ± 0.35

1.69 ± 0.34

0.107

TV e′ wave velocity (cm/s)

12.7 ± 3.3

12.7 ± 2.3

0.930

TV a′ wave velocity (cm/s)

11.8 ± 4.2

9.8 ± 2.4

0.004

TV e′/a′ ratio

1.18 ± 0.48

1.371 ± 0.38

0.052

TV E/e′ ratio

4.93 ± 1.14

4.89 ± 1.13

0.872

TV E wave DT, ms

155.4 ± 30.4

165.6 ± 40.1

0.204

IVC diameter, cm

1.9 ± 0.3

1.9 ± 0.2

0.887

EPASP, mmHg

23.2 ± 4.0

22.5 ± 3.2

0.353

  1. DT deceleration time, EPASP estimated pulmonary artery systolic pressure, FAC fractional area change, IVC inferior vena cava, IVCT isovolumetric contraction time, IVRT isovolumetric relaxation time, RV right ventricle, TAPSE tricuspid annular plane systolic excursion, TV tricuspid valve