Surgical procedures to relieve congenital right ventricular outflow tract(RVOT) obstruction of heart were performed on 125 patients from September 1985 to August 1992. There were 65 males and 60 females. Ages ranged from 7 months to 33 years with
a
mean
age of 8 years. All the patients were divided into three main groups(I, II, III) depending on the presence or absence of cyanosis and combined anomalies. The patients were classified into two group; A and B according to the outcome after surgical
repair. Group A included the patients who had a good postoperative outcome with or without mild complications such as wound disruption, or hydrothorax. Group B included the patients who had a poor outcome including hospital death and significant
postoperative complications such as heart failure, low output syndrome, respiratory failure, hepatic failure and others.
@ES And the results were summarized as follows.
@EN 1. There were no significant differences in age, body surface area and aortic dimension among the group I, II, and III, but there were significant differences among groups in pulmonary arterial dimension, ACT(aortic cross clamping time),
TBT(total
bypass time), preoperative and postoperative ratio of systolic pressure of right and left ventricles(pre PRV/RV and post PRV/LV), and the size of Hegar dilator which passed through the RVOT postoperatively(p<0.05).
2. In the group A and B, there were significant differences in pulmonary arterial dimension(group A:1. 6*0.5cm, group B:1. 9*0.6cm), ACT (group A:102.3*46.0minute, group B:76.1*46.1minute), TBT (group A:133.9*56.6minute, group B:94.6*51.9minute),
pre
PRV/LV(group A:1.06*0.24, group B:0.8*0.32), post PRV/LV(group A:0.58*0.18, group B:0.43*0.16).
It has been concluded that postoperative prognosis of RVOT obstruction was influenced by pulmonary arterial dimension, ACT, TBT, severity of RVOT obstruction(pre PRV/LV and post PRV/LV). (Korean J Thoracic Cardiovas Surg 1994; 27:435-43)
|