Skip to main content

Table 3 Patient characteristics stratified according to low and high extent of LGE

From: Impaired left atrial reservoir and conduit strain in patients with atrial fibrillation and extensive left atrial fibrosis

 

Low (≤25.3%) LGE (n = 41)

High (>25.3%) LGE (n = 41)

P-value

Age, years

59 ± 10

61 ± 7

0.42

BSA (Mosteller)*

2.1 ± 0.2

2.0 ± 0.2

0.15

CHA2DS2-VASc score

1.1 ± 1.2

1.3 ± 1.1

0.50

Hypertension

9 (22%)

18 (44%)

0.03

Diabetes mellitus

2 (5%)

2 (5%)

1.00

LA volume index—max (ml/m2)

48 ± 12

51 ± 16

0.36

LA sphericity (%)

79.7 ± 2.8

79.3 ± 3.3

0.61

LA function volumetric

 Total LAEF (%)

55 ± 11

50 ± 15

0.09

 Passive LAEF (%)

29 ± 11

24 ± 9

0.03

 Active LAEF (%)

25 ± 9

25 ± 11

0.98

LA strain

 LA reservoir strain (%)

− 16.9 ± 3.3

− 15.0 ± 3.9

0.02

 LA conduit strain (%)

− 9.5 ± 2.6

− 7.9 ± 2.7

0.01

 LA contractile strain (%)

− 7.4 ± 2.4

− 7.1 ± 2.3

0.55

 LA peak positive strain rate

0.76 ± 0.27

0.70 ± 0.22

0.36

 LA peak early negative strain rate

− 0.89 ± 0.31

− 0.76 ± 0.35

0.08

 LA peak late negative strain rate

− 0.88 ± 0.28

− 0.80 ± 0.33

0.22

 LA reservoir strain time (ms)

396 ± 51

383 ± 41

0.22

 LA conduit strain time (ms)

452 ± 133

410 ± 130

0.15

 LA contractile strain time (ms)

137 ± 35

132 ± 31

0.51

  1. Values are expressed as number (percentage) or mean ± SD. BMI body mass index, BSA body surface area, CHA2DS2VASc history of congestive heart failure, hypertension, diabetes mellitus, stroke/transient ischemic attack/prior thromboembolism, vascular disease, age and sex, LA left atrium, LAEF left atrial emptying fraction, LGE late gadolinium enhancement. Bold values denote statistical significance at the P < 0.05 level
  2. *Calculated by the Mosteller method ((height (cm) x weight (kg)/3600)½)