Table 2.

AKI and in-hospital outcomes before and after propensity matching

OutcomesBefore Propensity MatchingAfter Propensity Matching
TAVR (n=386)SAVR (n=1177)P ValueTAVR (n=195)SAVR (n=195)P Value
AKI106 (27.5)224 (19.0)<0.00147 (24.1)58 (29.7)0.21
AKI stage<0.0010.28
 No AKI280 (72.5)953 (81.0)148 (75.9)137 (70.3)
 Stage 185 (22.0)200 (17.0)39 (20.0)53 (27.2)
 Stage 26 (1.6)20 (1.7)3 (1.5)3 (1.5)
 Stage 315 (3.9)4 (0.3)5 (2.6)2 (1.0)
RRT in hospital11 (2.9)5 (0.4)<0.0012 (1.0)2 (1.0)>0.99
In-hospital mortality11 (2.9)2 (0.2)<0.0013 (1.5)2 (1.0)0.65
Major adverse kidney event18 (4.7)8 (0.7)<0.0014 (2.1)3 (1.5)0.70
Hospital length of stay (d)7.0±5.07.2±3.20.456.5±3.48.8±4.3<0.001
6-mo Mortalitya10.7%2.5%<0.0016.0%8.3%0.62
eGFR at 6 mob54±2072±21<0.00155±1958±200.09
Chronic renal replacement at 6 mob7 (2.0)6 (0.5)0.012 (1.1)1 (0.6)0.57
  • Data are presented as numbers (percentages) of patients or means±SDs unless otherwise indicated.

  • a Percentages were derived from Kaplan–Meier plots.

  • b Analysis was limited in survivors at 6 months after surgery.