%0 Journal Article %T Papillary Muscle Relocation in Secondary Mitral Regurgitation: Midterm Outcomes %A Pramote Porapakkham %A Pornwalee Porapakkham %J World Journal of Cardiovascular Diseases %P 216-227 %@ 2164-5337 %D 2022 %I Scientific Research Publishing %R 10.4236/wjcd.2022.124022 %X Background: Mitral valve repair in secondary mitral regurgitation is still uncertain as the chance of recurrence is approximately 30 percent after solely undersized annuloplasty. Some procedures adding to the subvalvular level are proposed to alleviate the recurrent rate. This study was to evaluate the clinical and echocardiographic outcomes of papillary muscle relocation plus undersized ring in secondary mitral regurgitation (2^nd MR). Methods: Medical records of moderate to severe 2^nd MR with tethering depth of more than 1 cm patients who underwent papillary muscle relocation plus undersized ring from 2014 to 2020 were reviewed. Clinical and echocardiographic parameters before and after operation were analyzed. Results: Thirty-two patients were included during the 6-year period. There was no perioperative mortality. Two patients died at one year from ischemic stroke and car accidents with overall 5-year survival of 93.7%. All patients were in NYHA class I and II with MR grading as trivial or mild at a median follow-up of 33 months. Postoperative mean tenting depth, area and posterior leaflet angle decreased remarkably from 1.18