Background
Right ventricular systolic dysfunction (
RVSD
) is a known risk factor for adverse outcome in surgical aortic valve replacement. Transcatheter aortic valve replacement (
TAVR
), on the other hand, has been shown to be either beneficial or have no effect on right ventricular systolic function. However, the prognostic significance of
RVSD
on
TAVR
has not been clearly determined. We conducted a systematic review and meta‐analysis to define the impact of
RVSD
on outcomes in terms of 1‐year mortality in patients with severe aortic stenosis undergoing
TAVR
.
Methods and Results
An extensive literature review was performed, with an aim to identify clinical studies that focused on the prognosis and short‐term mortality of patients with severe symptomatic aortic stenosis who underwent
TAVR
. A total of 3166 patients from 8 selected studies were included.
RVSD
, as assessed with tricuspid annular plane systolic excursion, fractional area change or ejection fraction, was found to be a predictor of adverse procedural outcome after
TAVR
(hazard ratio, 1.31; 95% CI, 1.1–1.55;
P
=0.002). Overall, we found that
RVSD
did affect post‐
TAVR
prognosis in 1‐year mortality rate.
Conclusions
Patients with severe, symptomatic aortic stenosis and concomitant severe
RVSD
have a poor 1‐year post‐
TAVR
prognosis when compared with patients without
RVSD
. Right ventricular dilation and severe tricuspid regurgitation were associated with increased 1‐year morality post‐
TAVR
and should be considered as independent risk factors. Further evaluations of long‐term morbidity, mortality, as well as sustained improvement in functional class and symptoms need to be conducted to determine the long‐term effects.