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Table 3 Evolution of left ventricular shortening fraction throughout the age groups.

From: Mid-term echocardiographic follow up of left ventricular function with permanent right ventricular pacing in pediatric patients with and without structural heart disease

  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
  1. CCHD – patients with complex congenital heart disease
  2. ICAVB – patients with isolated congenital complete or advanced AV block
  3. ISHD – patients with isolated structural heart disease
  4. LV SF – left ventricular shortening fraction
  5. NS – not significant