Table 1 Mean distances in millimetres (with range) of left atrial appendage (LAA) os dimensions and proximity to surrounding structures
Mean value (SD) (range)
LAA os long diameter17.4 (4) (10–24.1)
LAA os short diameter10.9 (4.2) (5.2–19.5)
LA transverse diameter35 (9) (20–56)
Distance between LAA and LSPV11.1 (4.1) (5.8–23.7)
Distance between LAA and MV10.7 (2.4) (4.7–14.4)
Distance between LAA and LAD11.3 (5.2) (5–31.6)

  • LA, left atrium; LAA, left atrial appendage; LAD, left anterior descending artery; LSPV, left superior pulmonary vein; MV, mitral valve.