Abstract
This study aimed to evaluate the long-term clinical impacts of prophylactic tricuspid annuloplasty (TAP) in patients with mild tricuspid regurgitation (TR) who underwent mitral valve repair. One hundred fifty-one patients with mild TR who underwent mitral valve repair for degenerative mitral regurgitation between 1997 and 2013 were categorized into the TAP (n= 85) or no TAP (n= 66) groups. The indications for TAP were atrial fibrillation and tricuspid annular dilatation. The mean follow-up duration was 115.5 ± 48.6 months. Inverse probability of treatment weighting analysis and propensity score matching with 53 patients in each group were used to adjust for the baseline differences between the 2 groups. There were no early mortalities in either group, and early morbidities, including heart block, were not different between the groups. Inverse probability of treatment weighting-adjusted survival analysis did not reveal any difference in overall survival (P= .862), freedom from cardiac-related mortality (P= .535), or major adverse valve-related events (P= .972) between the groups. There was no difference in late TR progression (moderate or greater) between the groups (P= .316). These results were consistent in the matched analysis. Prophylactic TAP in mild TR may not have a beneficial effect on TR progress in degenerative mitral regurgitation. Further large studies are necessary to define the role of prophylactic TAP in mild TR.
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