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Table 3 Exercise parameters of all patients and the comparisons between patients with and without left atrial enlargement

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) LAVI < 29 ml/m2(n = 52) LAVI ≥ 29 ml/m2(n = 59) P-value
Rest HR (beats/min) 70.7 ± 14.4 74.4 ± 15.7 67.5 ± 12.5 0.012
Peak HR (beats/min) 137.2 ± 24.5 145.1 ± 22.0 130.1 ± 24.5 0.001
Rest SBP (mmHg) 145.6 ± 19.3 139.9 ± 17.9 150.5 ± 19.4 0.003
Peak SBP (mmHg) 209.4 ± 40.9 204.7 ± 38.8 213.5 ± 42.6 0.258
Rest DBP (mmHg) 79.7 ± 12.8 78.1 ± 13.4 81.0 ± 12.3 0.236
Peak DBP (mmHg) 87.9 ± 18.7 86.8 ± 17.2 88.8 ± 20.1 0.583
Rate-pressure products 28566.9 ± 8300.4 29515.1 ± 7832.7 27731.2 ± 8671.9 0.282
Exercise duration (minutes) 6.8 ± 2.1 7.4 ± 1.8 6.3 ± 2.1 0.005
Exercise capacity (METs) 7.7 ± 1.9 8.3 ± 1.7 7.3 ± 2.0 0.005
Exercise capacity > 7 METs 73 (65.8) 43 (82.7) 30 (50.8) < 0.001
  1. Data are expressed as mean ± standard deviation and number (percentage).
  2. P values are for comparisons between the 2 groups.
  3. DBP = diastolic blood pressure; HR = heart rate; LAVI = left atrial volume index; METs = metabolic equivalents; SBP = systolic blood pressure.