Table 5

Characteristics of patients with early and late restriction (group 1) compared to patients with early restriction and late non-restriction (group 2)

VariablesGroup 1 (n = 9)Group 2 (n = 7)p value
Age at operation (years)1.3 (0.5–41.1)1.5 (0.7–9.9)NS
Follow up (years)1.9 (1.0)2.0 (1.3)NS
Echocardiographic study
Heart rate early (beats/min)128.0 (23.8)126.6 (5.5)NS
Heart rate late (beats/min)92.1 (15.3)96.1 (11.8)NS
PA (m/s)1.7 (0.3)1.5 (0.5)NS
PR duration (ms)219.6 (64.0)264.8 (47.7)NS
PR duration/√RR8.2 (3.8)10.9 (5.3)0.2
a wave PA (m/s)0.37 (0.1)0.28 (0.05)0.15
TVE deceleration (ms)101.3 (26.3)134.6 (26.4)< 0.03
TVE deceleration/√RR 3.8 (1.1)5.4 (1.1)< 0.01
E velocity (m/s)0.7 (0.16)0.7 (0.2)NS
  • All parameters, except heart rate early, are follow up data.

  • a wave, velocity of diastolic forward flow in pulmonary artery (PA); PR, pulmonary regurgitation.