Table 1.

Assessment of cardiac parameters by echocardiography

	Sham	1–3 wk	4–6 wk	7–9 wk	10–17 wk
n	15	63	24	22	43
FS, %	57±1	46±1	43±2	42±2	41±2*
LVEDV, μl	35±2	45±2	49±2	50±2	53±2*
LVESV, μl	6±1	14±2	17±3	19±3	18±4

Values are means ± SE; n, number of animals. FS, fractional shortening; LVEDV and LVESV, left ventricular diastolic and systolic volume, respectively.

^*P < 0.05 vs. group 1–3 wk.