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Table 4 Comparison of echocardiographic data between patients with limited exercise vs. preserved exercise capacity (6-min walk distance)

From: Quality of life questionnaire predicts poor exercise capacity only in HFpEF and not in HFrEF

Variable 6MWT > 300 m 6MWT <300 m P value
  (n = 76) (n = 42)  
LV EF (%) 48 ± 15 45 ± 15 0.445
IVS (cm) 1.12 ± 0.2 1.11 ± 0.1 0.986
LA diameter (cm) 4.2 ± 0.7 4.7 ± 0.9 0.001
LV EDD (cm) 5.7 ± 0.8 5.9 ± 1.1 0.271
LV ESD (cm) 4.2 ± 1.1 4.5 ± 1.3 0.261
Lateral MAPSE (cm) 1.3 ± 0.9 1.2 ± 1.1 0.786
Septal MAPSE (cm) 1.0 ± 0.3 0.9 ± 0.3 0.037
TAPSE (cm) 2.2 ± 2.3 2.1 ± 2.6 0.670
LV posterior wall (cm) 1.1 ± 0.4 1.0 ± 0.1 0.913
E/A ratio 1.0 ± 0.6 1.1 ± 0.8 0.325
FT (ms) 431 ± 138 379 ± 105 0.027
IVRT (ms) 132 ± 42 111 ± 34 0.028
PAAT (ms) 114 ± 23 100 ± 22 0.005
E/e’ ratio 10 ± 4.1 13 ± 8.0 0.020
Lareral e’ (cm/s) 6.1 ± 2.5 6.0 ± 2.7 0.881
Lateral a’ (cm/s) 8.2 ± 3.7 7.6 ± 3.5 0.393
Lateral s’ (cm/s) 5.5 ± 1.5 4.9 ± 1.6 0.074
Septal e’ (cm/s) 5.1 ± 2.2 4.6 ± 2.1 0.295
Septal a’ (cm/s) 7.5 ± 2.4 6.4 ± 1.9 0.019
Septal s’ (cm/s) 4.6 ± 1.6 4.0 ± 1.1 0.023
LA EF (%) 49 ± 17 45 ± 16 0.313
  1. LV left ventricle, EDD end-diastolic dimension, ESD end-systolic dimension, FT filling time, ET Ejection time, IVS interventricular septum, IVRT isovolemic relaxation time, e’ early diastolic myocardial velocity, s’ systolic myocardial velocity, LA left atrium, LA EF Left atrial emptying fraction, A atrial diastolic velocity, E early diastolic filling velocity, PAAT pulmonary artery acceleration time, MAPSE mitral annular plane systolic excursion, TAPSE tricuspid annular plane systolic excursion