Table 1

Serial anatomical indices of left atrium and left atrial appendage

Baseline TOEFollow up TOEp Value
Left atrium (n = 19)
Length (cm) (H)5.7 (0.2)5.7 (0.2)0.48
Length (cm) (V)5.9 (0.1)5.9 (0.2)0.81
Width (cm) (H)5.2 (0.2)5.2 (0.2)0.87
Width (cm) (V)5.3 (0.2)5.2 (0.2)0.65
Area (cm2) (H)23.7 (1.6)24.1 (1.6)0.98
Area (cm2) (V)24.2 (1.4)24.0 (1.6)0.91
Volume (cm3)83.2 (6.0)87.5 (7.2)0.51
Left atrial appendage (n = 20)
Length (cm) (H)4.6 (0.3)4.5 (0.3)0.80
Length (cm) (V)4.5 (0.2)4.4 (0.2)0.95
Width (cm) (H)2.5 (0.1)2.4 (0.1)0.52
Width (cm) (V)2.3 (0.1)2.2 (0.1)0.87
Area (cm2) (H)7.9 (0.8)8.1 (0.9)0.89
Area (cm2) (V)8.1 (1.2)7.3 (0.8)0.40
Peak velocity ejection (m/s)0.2 (0.01)0.2 (0.02)0.57
Severe SEC (n (%))15 (75)13 (72)0.29
Heart rate (beats/min)97 (5)85 (4)0.10
  • Values are mean (SEM).

  • H, horizontal (0°) imaging plane; SEC, spontaneous echo contrast; TOE, transoesophageal echocardiography; V, vertical (90°) imaging plane.