Skip to main content

Table 3 Pre- and post-ablation CMR characteristics of patients with no AF recurrence versus those with AF recurrence

From: Association of left atrial strain by cardiovascular magnetic resonance with recurrence of atrial fibrillation following catheter ablation

  Total N = 80 No AF recurrence n = 59 AF recurrence n = 21 p-value
Pre-ablation
 CMR before ablation procedure (median days, Q1-Q3) 32 (15–67) 26 (12–64) 38 (99–306) 0.45
 LAV maximum (mL) 112 ± 36 110 ± 34 117 ± 43 0.45
 LAV maximum index (mL/m2) 52 ± 18 46 ± 16 47 ± 16 0.51
 LAV minimum (mL) 63 ± 32 60 ± 30 70 ± 38 0.21
 LAV minimum index (mL/m2) 29 ± 16 28 ± 16 33 ± 16 0.24
 LAV pre-A (mL) 86 ± 35 82 ± 33 93 ± 41 0.21
 LAV pre-A index (mL/m2) 40 ± 17 38 ± 18 43 ± 17 0.24
 LA passive ejection fraction (%) 25 ± 12 23 ± 9 24 ± 8 0.71
 LA active ejection fraction (%) 29 ± 15 30 ± 16 26 ± 14 0.30
 LA total ejection fraction (%) 46 ± 15 45 ± 11 43 ± 13 0.47
 LA expansion index 95 ± 51 168 ± 524 87 ± 58 0.46
 LV ejection fraction (%) 60 ± 9 60 ± 10 61 ± 4 0.93
 LVEDVi (mL/m2) 86 ± 16 82 ± 17 88 ± 15 0.11
 LVESVi (mL/m2) 36 ± 11 32 ± 7 37 ± 11 0.05
 LV mass (mg) 97.0 ± 33.4 95.1 ± 32.3 102.4 ± 36.7 0.38
 RVEF (%) 53 ± 6 52 ± 6 55 ± 7 0.12
 RVEDVi (mL/m2) 94 ± 22 95 ± 22 91 ± 24 0.55
 RVESVi (mL/m2) 45 ± 14 44 ± 10 45 ± 22 0.89
 RA volume (mL) 143 ± 40 139 ± 38 155 ± 48 0.12
 RAVI (mL/m2) 68 ± 19 67 ± 19 70 ± 20 0.55
R 24.0 ± 10.4 25.2 ± 10.7 20.8 ± 8.9 0.06
CT 8.4 ± 4.1 9.1 ± 3.7 7.1 ± 4.6 0.05
CD 15.6 ± 7.1 16.2 ± 7.7 13.7 ± 4.9 0.17
Post-ablation
 CMR after ablation procedure (median days, Q1–Q3) 131 (114–201) 140 (99–306) 124 (96–151.5) 0.31
 LA maximum volume (mL) 96 ± 30 100 ± 27 104 ± 36 0.57
 LAV maximum index (mL/m2) 45 ± 14 47 ± 14 47 ± 16 0.85
 LAV minimum (mL) 53 ± 23 55 ± 22 68 ± 26 0.05
 LAV minimum index (mL/m2) 25 ± 12 26 ± 8 31 ± 11 0.06
 LAV pre-A (mL) 73 ± 27 77 ± 25 79 ± 32 0.74
 LAV pre-A index (mL/m2) 34 ± 13 37 ± 12 36 ± 14 0.79
 LA passive EF (%) 24 ± 9 24 ± 9 24 ± 8 0.96
 LA active EF (%) 27 ± 16 29 ± 11 24 ± 8 0.05
 LA total EF (%) 43 ± 15 46 ± 12 39 ± 14 0.02
 LA expansion index 88 ± 49 95 ± 37 74 ± 38 0.03
 LVEF (%) 57 ± 6 58 ± 6 60 ± 3 0.85
 LVEDVI (mL/m2) 90 ± 25 85 ± 19 88 ± 38 0.79
 LVESVI (mL/m2) 39 ± 11 36 ± 12 34 ± 8 0.77
 LV mass (mg) 88.2 ± 27.0 94.2 ± 26.6 96.1 ± 28.8 0.69
 RVEF (%) 51 ± 6 52 ± 6 53 ± 5 0.42
 RVEDVI (mL/m2) 93 ± 22 89 ± 21 87 ± 24 0.86
 RVESVI (mL/m2) 46 ± 13 43 ± 13 39 ± 11 0.81
 RA volume (mL) 132 ± 39 121 ± 38 137 ± 42 0.11
 RAVI (mL/m2) 65 ± 19 52 ± 18 62 ± 20 0.04
R 21.4 ± 8.1 21.4 ± 7.8 21.0 ± 9.1 0.77
CT 7.0 ± 5.3 7.3 ± 1.7 6.2 ± 2.9 0.04
CD 14.4 ± 6.3 14.1 ± 6.2 14.8 ± 7.2 0.3
ΔR 2.7 ± 9.3 3.8 ± 9.1 -0.2 ± 9.7 0.09
ΔCT 1.4 ± 4.5 1.7 ± 4.2 0.9 ± 5.3 0.49
ΔCD 1.3 ± 6.6 2.1 ± 6.7 -1.1 ± 6.2 0.06
  1. Significant p-values are shown in bold
  2. EDV, end diastolic volume; EF, ejection fraction; ESV, end systolic volume; LA, left atrium; LAV, left atrial volume; LLPV, left lower pulmonary vein; LUPV, left upper pulmonary vein; LV, left ventricle; RA, right atrium; RLPV, right lower pulmonary vein; RUPV, right upper pulmonary vein; RV, right ventricle; CD, conduit strain; CT, contractile strain; R, reservoir strain, ΔR, ΔCT, ΔCD, difference between pre- and post-ablation values of R, CT and CD, respectively