Table 1

Characteristics of patients studied early after tetralogy of Fallot repair

VariablesEarly restriction
(n = 16)
Early non-restriction
(n = 18)
p value
Age at operation (years)1.4 (0.5–41.1)0.9 (0.5–2.5) 0.1
Follow up (years)1.8 (0.6–3.3)1.7 (0.5–3.3)NS
Surgical procedure
Blalock-Taussig shunt66
Transannular patch repair141-150 81-150
Outflow patch21-150 91-150
Echocardiographic study
PA (m/s)1.1 (0.22)1.5 (0.6)NS
PR duration (ms)171 (76)174 (39)NS
PR duration/√RR7.7 (3.4)8.9 (1.9)0.08
Heart rate (beats/min)128 (8.5)150.5 (18.0)< 0.005
QRS71.9 (17.3)70.6 (12.2)NS
  • Values are median (range) or mean (SD).

  • 1-150 p = 0.01, χ2 test.

  • PA, pulmonary artery; PR, pulmonary regurgitation.