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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.