Table 1 Echocardiography.

From: Multiaxial Lenticular Stress-Strain Relationship of Native Myocardium is Preserved by Infarct-Induced Natural Heart Regeneration in Neonatal Mice

P1 Mice

P1 Sham (n = 22)

P1 MI (n = 22)

P-value

Heart Rate (bpm)

453.4 ± 14.7

435.0 ± 15.8

0.3982

LVWTd (mm)

0.64 ± 0.02

0.61 ± 0.03

0.4700

LVIDs (mm)

2.28 ± 0.06

2.32 ± 0.07

0.6659

LVIDd (mm)

3.34 ± 0.07

3.36 ± 0.07

0.8693

Ejection Fraction (%)

60.7 ± 1.6

59.6 ± 1.7

0.6514

P7 Mice

P7 Sham (n = 20)

P7 MI (n = 20)

P-value

Heart Rate (bpm)

433.8 ± 14.2

444.1 ± 15.2

0.6231

LVWTd (mm)

0.71 ± 0.02

0.40 ± 0.02

<0.0001

LVIDs (mm)

2.27 ± 0.09

3.69 ± 0.17

<0.0001

LVIDd (mm)

3.35 ± 0.07

4.34 ± 0.14

<0.0001

Ejection Fraction (%)

61.8 ± 2.1

32.6 ± 3.2

<0.0001

  1. Echocardiographic assessment of cardiac geometry and function at 4 weeks after surgery. LVIDd, left ventricle internal diameter in diastole; LVIDs, left ventricle internal diameter in systole; LVWTd, left ventricle wall thickness in diastole; MI, myocardial infarction; P1, postnatal day 1; P7, postnatal day 7. Data presented as mean ± standard error and compared using two-sample t-test.
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