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Table 2 CMR parameters compared between HFpEF and controls

From: Impact of different degrees of left ventricular strain on left atrial mechanics in heart failure with preserved ejection fraction

Parameters HFpEF (n = 79) Controls (n = 158) p-value
Basic parameters
 LVEDV index (ml/m2) 66.6 ± 14.9 64.8 ± 12.1 0.315
 LVESV index (ml/m2) 21.3 ± 8.2 18.9 ± 6.3 0.013
 LVEF (%) 68.6 ± 7.6 71.5 ± 6.3 0.002
 LVMI (g/m2) 64.0 ± 19.7 53.2 ± 10.8  < 0.001
 RVEDV index (ml/m2) 64.1 ± 16.8 65.6 ± 13.9 0.461
 RVEF (%) 57.5 ± 10.0 56.6 ± 8.5 0.467
LV strain parameters
 GLS (%)  − 13.3 ± 3.4  − 15.4 ± 2.2  < 0.001
 GCS (%)  − 16.4 ± 3.6  − 18.9 ± 2.8  < 0.001
 GRS (%) 28.1 ± 8.8 34.3 ± 8.1  < 0.001
LA volume and mechanical parameters
 LAVimax (ml/m2) 45.1 ± 21.1 35.9 ± 10.3  < 0.001
 LAVimin (ml/m2) 27.3 ± 20.9 16.7 ± 7.2  < 0.001
 LAEF, total (%) 43.5 ± 16.8 54.2 ± 12.2  < 0.001
 LAEF, passive (%) 20.8 ± 9.6 26.2 ± 9.5  < 0.001
 LAEF, active (%) 25.5 ± 11.1 28.6 ± 9.1 0.043
 LA expansion index (%) 92.8 ± 57.2 132.0 ± 54.4  < 0.001
 Conduit volume index (ml/m2) 27.5 ± 8.3 26.1 ± 9.3 0.236
 LASr (%) 19.5 ± 9.7 26.7 ± 8.8  < 0.001
 LAScd (%)  − 9.7 ± 5.9  − 14.8 ± 7.4  < 0.001
 LASct (%)  − 10.7 ± 5.2  − 12.4 ± 4.3 0.017
 Abnormal GLS (≥ − 16%) 59 (75.6%) 87 (56.1%) 0.004
 Abnormal LAVI (> 34 ml/m2) 54 (68.4%) 84 (53.5%) 0.029
 Abnormal LASr (< 23%) 49 (62.0%) 60 (38.5%) 0.001
 Abnormal LAEF (< 50%) 47 (59.5%) 43 (27.4%)  < 0.001
 Heart rate (beats per minute) 73.0 ± 13.5 71.0 ± 12.6 0.237
  1. Data presented as mean ± standard deviation or number and percentage
  2. CMR indicates cardiac magnetic resonance; HFpEF heart failure with preserved ejection fraction; GCS global circumferential strain; GLS global longitudinal strain; GRS global radial strain; LAVimax maximal left atrial volume index; LAVimin minimal left atrial volume index; LAEF left atrial emptying fraction; LAScd left atrial strain during conduit phase; LASct left atrial strain during contraction phase; LASr left atrial strain during reservoir phase; LVEDV left ventricular end-diastolic volume; LVEF left ventricular ejection fraction; LVESV left ventricular end-systolic volume; LVMI LV mass index; RVEDV right ventricular end-diastolic volume; RVEF right ventricular ejection fraction
  3. A p-value < 0.05 indicates statistical significance (bold and italic)