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Table 1 Characteristics of control and DOCA animals

From: Early-stage heart failure with preserved ejection fraction in the pig: a cardiovascular magnetic resonance study

  Controls (n = 7) DOCA (n = 5) Controls vs. DOCA
Parameter Rest Stress p Rest Stress p prest pstress
weight (kg) 58 ± 9    65 ± 2    0.090  
BSA (m2) 1.05 ± 0.10    1.14 ± 0.03    0.085  
Htc (%) 28 ± 2    28 ± 2    0.796  
DB (μg · kg−1 · min−1)   2.7 ± 0.7    3.8 ± 1.0    0.045
HR (min−1) 89 ± 5 114 ± 3 < 0.001 86 ± 8 110 ± 13 0.014 0.424 0.488
mBP (mmHg) 87 ± 7 95 ± 13 0.061 106 ± 8 101 ± 12 0.538 0.001 0.400
sBP (mmHg) 103 ± 8 116 ± 9 0.004 125 ± 6 120 ± 11 0.536 < 0.001 0.493
dBP (mmHg) 75 ± 9 82 ± 16 0.077 96 ± 10 86 ± 12 0.122 0.003 0.614
RPP (102 mmHg · min−1) 92 ± 8 132 ± 11 < 0.001 108 ± 14 132 ± 17 0.026 0.034 0.990
  1. BSA body surface area, Htc hematocrit, DB dobutamine infusion rate, HR heart rate, mBP mean blood pressure, sBP systolic blood pressure, dBP diastolic blood pressure, RPP (= sBP × HR) rate-pressure product
  2. p is related to the rest-stress comparison within each group. prest and pstress relate to group comparisons at rest and stress, respectively