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Table 4 Clinical, exercise and echocardiographic parameters of all patients and the comparisons between patients with and without good exercise capacity

From: Left atrial volume as an independent predictor of exercise capacity in patients with isolated diastolic dysfunction presented with exertional dyspnea

Variables Total (n = 111) Exercise capacity < 7 METs (n = 38) Exercise capacity ≥ 7 METs (n = 73) P-value
Age (years) 58.1 ± 9.2 61.7 ± 9.2 56.3 ± 8.7 0.003
Male gender 60 (54.1) 20 (52.6) 40 (54.8) 0.828
BMI (kg/m2) 25.7 ± 3.8 27.1 ± 4.0 24.9 ± 3.4 0.004
Rest HR (beats/min) 70.7 ± 14.4 70.8 ± 15.5 70.7 ± 14.0 0.975
Peak HR (beats/min) 137.2 ± 24.5 127.3 ± 23.2 142.3 ± 23.7 0.002
LVDD (mm) 48.2 ± 4.8 49.0 ± 5.5 47.8 ± 4.4 0.238
LVSD (mm) 27.9 ± 5.3 28.4 ± 6.3 27.6 ± 4.6 0.457
IVSd (mm) 10.9 ± 2.6 11.6 ± 3.1 10.5 ± 2.2 0.053
LVEDV (ml) 68.8 ± 16.6 71.7 ± 19.9 67.2 ± 14.4 0.175
LVESV (ml) 20.2 ± 8.0 21.4 ± 9.5 19.5 ± 7.0 0.220
LV ejection fraction (%) 71.1 ± 5.8 70.8 ± 6.4 71.3 ± 5.5 0.644
LV mass index (g/m2) 110.2 ± 40.1 124.4 ± 55.4 103.1 ± 27.2 0.032
LA diameter (mm) 43.0 ± 6.1 45.8 ± 5.2 41.7 ± 6.0 0.001
E (cm/sec) 79.4 ± 23.7 82.9 ± 24.1 77.6 ± 23.5 0.261
A (cm/sec) 84.8 ± 23.5 93.1 ± 24.7 80.5 ± 21.8 0.006
E/A ratio 1.0 ± 0.4 0.9 ± 0.3 1.0 ± 0.4 0.221
DT (ms) 201.3 ± 40.7 205.5 ± 48.8 199.1 ± 35.9 0.438
S’ (cm/sec) 7.0 ± 1.3 6.8 ± 1.3 7.2 ± 1.3 0.101
E' (cm/sec) 6.1 ± 1.6 5.6 ± 1.2 6.3 ± 1.7 0.007
E/E’ratio 13.6 ± 4.6 15.2 ± 5.5 12.7 ± 3.8 0.006
LAVI (ml/m2) 31.4 ± 10.5 36.3 ± 12.8 28.8 ± 8.0 0.002
  1. Data are expressed as number (percentage) or mean ± standard deviation.
  2. P values are for comparisons between 2 groups.
  3. A = peak late diastolic velocity of mitral inflow; BMI = body mass index; DT = deceleration time; E = peak early diastolic velocity of mitral inflow; E’ = tissue Doppler peak early diastolic velocity of medial mitral annulus; HR = heart rate; IVSd = interventricular septum wall thickness during diastole; LA = left atrium; LAVI = left atrial volume index; LV = left ventricle; LVDD = left ventricular end-diastolic diameter; LVSD = left ventricular end-systolic diameter; LVEDV = left ventricular end-diastolic volume; LVESV = left ventricular end-systolic volume; METs = metabolic equivalents ; S’ = tissue Doppler peak systolic velocity of medial mitral annulus.