ObjectiveTo explore the result of of modified artificial chordae technique and annuloplasty in mitral valvuloplasty for mitral leaflet prolapse.
MethodsWe retrospectively analyzed the clinical data of 112 patients underwent mitral valve repair with artificial chordae (expanded polytetrafluoroethylene, ePTFE) and annuloplasty in our hospital from January 2006 through June 2014.There were 69 males and 43 females at age of 5-73 (51.4±14.4) years.The double-armed ePTFE chordae was fixed at papillary muscle head using U shaped suture without pledget and passed through the prolapsing portion of leaflet twice.Then, annuloplasty was performed and correct chordal length was adjusted.After that, the chordae was passed through prolapsing scallop one more time and tied.
ResultsAverage of 2.4±0.7 (range from 1 to 3) ePTFE artificial chordaes were implanted in each patient.Intra-operative transthoracic echocardiography showed no mitral regurgitation (MR) in 78 patients and tricuspid regurgitation in 34 patients.At discharge, no MR was in 72 patients, trivial MR in 39 patients, and mild MR in 1 patient.At end of follow-up of 41.5±24.8 months, moderate MR was in 3 patients.The freedom from moderate or severe regurgitation at 5 years after mitral valve repair was 95.1%±3.0%.
ConclusionThis modified artificial chordae technique and annuloplasty are safe, simple, and effective in mitral valvuloplasty for mitral leaflet prolapsed.And the early and long-term results are satisfactory.
