Mid-term results for mitral valve repair in congenital mitral regurgitation associated with ventricular septal defect

Abstract

Introduction: Congenital mitral regurgitation (MR) associated with ventricular septal defect (VSD) is
not uncommon. Surgical repair of significant mitral valve regurgitation at the time of the VSD closure
is indicated specially if there is a structural problem. The aim of this study is to look at the outcome of
concomitant mitral valve repair during surgical closure of the VSD.
Material and methods: Between January 2000 to December 2009, 53 patients underwent repair for
congenital mitral valve regurgitation at the time of ventricular septal defect closure. The mean age was 5
years, median of 1.25 years, minimum of 4 months and maximum of 47 years. Twenty-two patients were
infants. The predominant type of the VSD was peri-membraneous. Annuloplasty with a ring repair was
performed in 49% of patients.
Results: One patient died in the hospital because of sepsis. One patient with large VSD and prolapsed
anterior mitral valve leaflet, underwent redo mitral valve repair within the same admission because of
residual moderate to severe MR. The mean follow up period was 4.5 years. Freedom from reoperation was
94%. There was one late mortality after one year due to non-cardiac cause. Overall survival at 10 years was
96%
Conclusion: Concomitant mitral valve repair is indicated in patients with moderate to severe mitral
valve regurgitation associated with VSD. At mid-term follow up the durability of the mitral valve repair is
excellent with relatively low reoperation rate.