Mid-term results of mitral valve palsty in patients with mitral sclerotic lesion

BACKGROUND Mitral valve repair is preferred over prosthetic replacement. We surgically repaired mitral valve with degenerated sclerotic lesion and demonstrated mid-term results. METHODS Mitral valve plasty (MVP) was performed with several procedures including ring annuloplasty, leaflet slicing and decalcification. RESULTS There were 19 males and 19 females with a mean age of 67 ± 12 y.o (n = 38). All patients were successfully treated MVP except one case with unrepairable injuries of the thin leaflet. In patients underwent MVP (n = 37), MVP included ring annuloplasty with a rigid full ring of 32 ± 2 mm (n = 37), leaflet slicing (n = 37), decalcification (n = 15) and artificial chordae (n = 14). Mitral valve area was statistically enlarged by MVP (1.65 ± 0.57 vs 2.51 ± 0.58 cm(2), p < 0.001). Left atrial diameter was statistically reduced after the operation (55 ± 10 vs 46 ± 9 mm, p < 0.001). Severity of MR and right ventricular systolic pressure (RVSP) were statistically decreased after the operation (MR; 1.8 ± 1.0 vs 0.7 ± 0.9, p < 0.001, RVSP; 38 ± 15 vs 30 ± 9 mm Hg, p < 0.001). There were 4 cases with residual MR (Grade II, n = 3; Grade III, n = 1). The 30-days mortality was 0 %. There was one late death due to non-cardiogenic cause (the 3-year survival rate of 97 %) and no redo case due to deterioration of the mitral valve during follow-up period of 21 ± 13 months. CONCLUSIONS Successful mid-term survival and freedom from reoperation might expect to the durability of MVP in patients with mitral sclerotic lesion.