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Table 4 Echocardiographic and strain variables of patients with maintained sinus rhythm (MSR) group as compared to the atrial fibrillation recurrence (AFR) group

From: Speckle echocardiographic left atrial strain and stiffness index as predictors of maintenance of sinus rhythm after cardioversion for atrial fibrillation: a prospective study

Echo variables

MSR (n=27)

AFR (n=14)

P value

LVIDd, mm

49.6 ± 2.6

51.5 ± 6.6

0.68

LVIDs, mm

35.8 ± 3.6

35.2 ± 6.6

0.84

STd, mm

10.4 ± 0.8

10.5 ± 0.8

0.61

PWTd, mm

10.1 ± 0.8

10.8 ± 1.0

0.18

LVEF (%)

54.8 ± 4.4

52.5 ± 7.0

0.72

LAD, mm

46.5 ± 3.8

44.7 ± 9.4

0.95

Pre-CV LAVI, ml/M2

34.5 ± 5.0

36.5 ± 5.6

0.82

Post-CV LAVI, ml/M2

35 ± 5.6

34.2 ± 5.2

0.89

E/E’

9.8 ± 2.2

12.5 ± 2.6

0.07

 

Pre-CV

Post-CV

P value

Pre-CV

Post-CV

P value

HR

84.0 (77.6 – 90.6)

66.0 (60.5 – 71.6)

<0.01

87.9 (78.2 – 97.6)

75.7 (69.3 – 82.1)

0.05

LAVI, ml/M2

34.5 (29.4 – 39.8)

35 (29.2 – 40.9)

0.87

36.5 (30.9 – 42.1)

34.2 (29.0 – 39.4)

0.19

2CLAS, %

12.8 (9.5 – 16.3)

18.0 (13.4 – 22.8)

0.01

12.4 (8.1 – 16.8)

13.2 (10.7 – 15.8)

0.68

4CLAS, %

10.8 (7.6 – 14.1)

15.9 (12.5 – 19.3)

<0.01

11.6 (7.5 – 15.7)

13.7 (7.7 – 19.9)

0.75

LAS, %

11.8 (9.1 – 14.6)

17.0 (13.2 – 20.8)

<0.01

12.0 (8.3 – 15.7)

13.5 (9.5 – 17.6)

0.38

2CLASt

0.92 (0.63 – 1.20)

1.42 (−0.16 – 2.99)

0.5

1.32 (0.78 – 1.87)

0.83 (0.52 – 1.14)

0.25

4CLASt

1.64 (0.86 – 2.41)

0.83 (0.54 – 1.12)

0.06

1.45 (0.78 – 2.13)

0.92 (0.32 – 1.52)

0.24

LASt

1.28 (0.81 – 1.76)

1.12 (0.25 – 1.99)

0.92

1.39 (0.81 – 1.97)

0.88 (0.43 – 1.33)

0.22

  1. LVIDd – Left ventricular internal diameter at end- diastole, LVIDs – Left ventricular internal diameter at end- systole, STd – Interventricular septum thickness at end-diastole, PWTd – Left ventricular posterior wall thickness at end-diastole, LVEF – Left ventricular ejection fraction, LAD – Left atrial diameter, LAVI – Left atrial volume index, E = early filling velocity of transmitral Doppler flow, E’ = Average early diastolic velocity of medial and lateral mitral annulus, HR – Heart rate, 2CLAS - 2 chamber average peak systolic strain, 4CLAS - 4 chamber average peak systolic strain, LAS – Mean peak systolic strain of 2C and 4C, 2CLASt - 2 chamber left atrial stiffness, 4CLASt – 4 chamber left atrial stiffness, LASt – Mean left atrial stiffness of 2C and 4C.