Background: Significant tricuspid regurgitation (TR) late after left heart valve procedure is frequent and associated with increased morbidity. Surgical correction carries a significant mortality risk, whereas the impact of TR on survival in these patients is unclear.
Objectives: This study sought to assess the impact of significant TR late after left heart valve procedure.
Methods: A total of 539 consecutive patients with previous left heart valve procedure (time interval from valve procedure to enrollment 50 ± 30 months) were prospectively followed for 53 ± 15 months.
Results: Significant TR (defined as moderate or greater severity by echocardiography) was present in 91 (17%) patients (65% female). Patients with TR presented with more symptoms (New York Heart Association functional class ≥II 55% vs. 31%), lower glomerular filtration rates (61 ± 19 ml/min vs. 68 ± 18 ml/min), and a higher likelihood of atrial fibrillation (41% vs. 20%), all statistically significant. Right ventricular (RV) systolic function was worse in patients with significant TR (RV fractional area change 43 ± 11% vs. 47 ± 9%, p < 0.001). A total of 117 (22%) patients died during follow-up. By Kaplan-Meier analysis, overall survival was significantly worse in patients with significant TR (log-rank p < 0.001). However, by multivariable Cox analysis, only RV fractional area change, age, left atrial size, diabetes, and previous coronary artery bypass graft procedure were significantly associated with mortality, but not tricuspid regurgitation.
Conclusions: RV dysfunction, but not significant TR, is independently associated with survival late after left heart valve procedure.
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| http://dx.doi.org/10.1016/j.jacc.2014.09.062 | DOI Listing |
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