Extensive use of polytetrafluoroethylene artificial grafts for prolapse of posterior mitral leaflet

摘要: Abstract Background There are an increasing number of reports concerning mitral valve repair by means reconstruction the chordae tendinae with expanded polytetrafluoroethylene (e-PTFE) sutures. However little information is available about extended application or results this technique for prolapse posterior leaflets. Methods Between March 1994 and December 2000, 22 patients moderate-to-severe regurgitation (MR) as result a leaflets (age range, 39–73 years) underwent artificial 4-CV e-PTFE sutures without leaflet resection. Either Kay's suture ring annuloplasty was also performed to correct annular dilatation in all patients. Results No operative death late mortality observed. Before discharge immediate postoperative echocardiography indicated less than moderate MR 20 out The follow-up complete cases clinical examination serial echocardiograms median period 87 months (range 24–108). were two failures that required reoperation because unsuccessful worsening (elongation anchored side papillary muscle). When reoperated excluded from data, degree MR, estimated at recent period, nonexistent 6 patients, trivial 10 mild 4 systolic diastolic dimensions left ventricle decreased significantly ( p Conclusions Replacement not complicated seemed preserve favorable relationships among tissues, chordae, muscles. We therefore suggest extensive use PTFE seems be promising procedure regarding many kinds lesions causing MR.