Abstract
The aim of this study is to describe a case of successful single-stage primary replacement of atrioventricular valves
for complete form of atrtioventricular canal with potentially parachute-like mitral valve and tricuspid insufficiency
of common AV-canal due to leaflet dysplasia.
According to the world literature, the question of surgical treatment for common atrioventricular canal still remains
unresolved. The analysis of literature data shows that some authors prefer to perform plastic surgeries for pathology
of common atrioventricular canal while the others consider necessary to perform replacement with mechanical
and biological valves.
We suppose that correction of incompetent atrioventricular valves combined with complete form of common atrtioventricular
canal and additional malformations of valve development in children can result in postoperative
complications and turn out to be ineffective. This fact predetermines the need for individual approach to such
patients which can consist of primary replacement of diseased component.
