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Tricuspid Regurgitation Pressure Gradient as a Useful Predictor of Adverse Cardiovascular Events and All-Cause Mortality in Patients With Atrial Fibrillation.
American Journal of the Medical Sciences 2018 August
BACKGROUND: Tricuspid regurgitation pressure gradient (TRPG) is reportedly a predictor of cardiovascular (CV) mortality in patients without atrial fibrillation (AF); its relationship with cardiac outcomes in patients with AF has never been evaluated. This study aimed to examine the ability of TRPG to predict CV events and all-cause mortality in patients with AF.
MATERIALS AND METHODS: Comprehensive echocardiography was performed in 155 patients with persistent AF. Combined CV events were defined as CV mortality, stroke and hospitalization for heart failure.
RESULTS: During an average follow-up period of 27 months, 57 CV events and 31 all-cause deaths occurred. According to multivariate analysis, predictors of CV events included diuretic use, decreased left ventricular ejection fraction (LVEF), increased ratio of transmitral E velocity (E) to early diastolic mitral annular velocity (E') and TRPG. Predictors of all-cause mortality included old age, decreased LVEF, increased E/E' and TRPG. Notably, the addition of TRPG to a model containing clinical significant parameters, LVEF and E/E' significantly improved the values in predicting adverse CV events and all-cause mortality.
CONCLUSIONS: The TRPG is not only a useful predictor of adverse CV events and all-cause mortality in patients with AF, it may also provide additional prognostic values for CV outcome and all-cause mortality over conventional parameters in such patients.
MATERIALS AND METHODS: Comprehensive echocardiography was performed in 155 patients with persistent AF. Combined CV events were defined as CV mortality, stroke and hospitalization for heart failure.
RESULTS: During an average follow-up period of 27 months, 57 CV events and 31 all-cause deaths occurred. According to multivariate analysis, predictors of CV events included diuretic use, decreased left ventricular ejection fraction (LVEF), increased ratio of transmitral E velocity (E) to early diastolic mitral annular velocity (E') and TRPG. Predictors of all-cause mortality included old age, decreased LVEF, increased E/E' and TRPG. Notably, the addition of TRPG to a model containing clinical significant parameters, LVEF and E/E' significantly improved the values in predicting adverse CV events and all-cause mortality.
CONCLUSIONS: The TRPG is not only a useful predictor of adverse CV events and all-cause mortality in patients with AF, it may also provide additional prognostic values for CV outcome and all-cause mortality over conventional parameters in such patients.
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