Surgical treatment for pulmonary stenosis with intact interventricular septum.

ABSTRACT

Pulmonary stenosis with intact interventricular septum (PS, IVS) is one of the five most common congenital heart diseases to have required surgery at Siriraj Hospital during the past 17 years. It represents 4.5% of all congenital heart diseases operated upon. We reviewed 166 patients who received open-heart surgical treatment for PS, IVS at Siriraj Hospital from 1979 to 1995. Female predominated in neonates. Overall operative mortality was 2.4% with a failure rate of 0.6%. Infundibular plus valvar stenosis was the most common morphology founded at surgery (46%). There was no difference in operative mortality relevance to the level of obstruction. Operative mortality was higher (22%) in infant age group than in the neonate and childhood groups. Since 1992, there has been no operative mortality in any of the age groups. It can be concluded that, the result of surgical treatment for PS, IVS in Siriraj Hospital is excellent with a very low failure rate.