[Surgical treatment of partial atrioventricular canal malformations]

27 cases of partial atrioventricular canal malformations were treated surgically, without operative death or serious complications. There were 15 males and 12 females, aged from 6 to 32 years (mean 14.7 years). Diagnosis was confirmed by echocardiography in all cases and catheterization in 13 as well. Surgical correction was performed under CPB combined with moderate hypothermia. Right atrium approach was used. The anterior mitral cleft was sewn with interrupted sutures and annuloplasty is done when regurgitation is obvious. Atrial septal defect was repaired with patch.