In-hospital outcomes of transcatheter versus surgical aortic valve replacement for nonagenarians

ObjectivesTo compare the in-hospital outcomes of transcatheter aortic valve replacement (TAVR) versus surgical aortic valve replacement (SAVR) in nonagenarians. BackgroundData comparing the outcomes of TAVR versus SAVR in nonagenarians are limited. MethodsUsing the National Inpatient Sample years 2012-2014, hospitalization data were retrieved for subjects aged 90years who underwent TAVR or SAVR for severe aortic stenosis. The incidence of in-hospital mortality and peri-procedural outcomes were compared using unadjusted, multivariate logistic regression, and propensity score matched analyses. ResultsThe final cohort included 6,680 records of nonagenarians undergoing aortic valve replacement, among which 5,840 (87.4%) underwent TAVR. There was no difference in the incidence of in-hospital mortality between both groups in the unadjusted (5.8% versus 6.0% P=0.95), multivariate (odds ratio [OR] 0.78, 95% confidence interval [CI] 0.35-1.74), and propensity score matched (OR 1.07, 95% CI 0.75-1.51) analyses. In the propensity-matched analysis, TAVR was associated with a lower incidence of acute kidney injury (OR 0.58, 95% CI 0.47-0.72), post-operative blood transfusion (OR 0.51, 95% CI 0.43-0.61), a higher likelihood of discharge to home (OR 4.71, 95% 3.44-5.06), and a similar incidence of pacemaker placement (OR 1.16, 95% 0.89-1.53) and stroke (OR 1.34, 0.90-1.99). ConclusionsIn this nationwide analysis, TAVR was associated with an overall similar incidence of in-hospital mortality and less morbidity compared with SAVR. These findings suggest that TAVR is effective and safe in nonagenarians.