Table 3.

Evolution of left ventricular shortening fraction throughout the age groups.

	LV SF in pts < 1 year	LV SF in pts 12–15 yrs	p
Overall	0.43 ± 0.09	0.4 ± 0.12	NS
ICAVB	0.39 ± 0.08	0.41 ± 0.07	NS
CCHD	0.45 ± 0.07	0.35 ± 0.06	0.015
ISHD	0.49 ± 0.08	0.42 ± 0.18	NS

CCHD – patients with complex congenital heart disease

ICAVB – patients with isolated congenital complete or advanced AV block

ISHD – patients with isolated structural heart disease

LV SF – left ventricular shortening fraction

NS – not significant