Risk factors for late reoperation:
Univariate analysis of risk factors of late re-operation is summarized
in table 4. Recipient < 16 years old (p=0.043), initial
pulmonary stenosis (p=0.040), concomitant tricuspid surgery during PH
implantation (p=0.037) were identified as significant risk factors for
re-operation of the RVOT. Isolated PH failure (p=0.223), isolated
stenosis of the pulmonary branches during follow-up (p=0.308),
ABO-Rhesus compatibility (p=0.167), TOF (p=0.069), size of PH
< 22 mm (p=0.205) and concomitant pulmonary arteries
enlargement during PH implantation (p=0.361) were not significantly
identified as risk factors of late re-operation of the RVOT during
follow-up. Multivariate analysis is summarized in table 5. No
independent risk factor of late re-operation was significantly
identified.