R. E. Robinson1, T. Theologou1, M. Field1, R. Stables1, O. Al-Rawi1, M. Kuduvalli1, A. Oo1 1Liverpool Heart And Chest Hospital,Cardiothoracic Surgery,Liverpool, MERSEYSIDE, United Kingdom
Introduction:
Transcatheter aortic valve implantation (TAVI) is an alternative method for treatment of severe aortic valve stenosis in high-risk patients.
Recently the TAVI procedure has emerged as an effective alternative method for the treatment of severe aortic valve stenosis in high-risk patients. This innovative technique has been adopted in our institution since 2008 with a beneficial effect on patients who were excluded from conventional surgical management. The aim of this study is to compare the mortality and subsequent 4 year predicted survival rate of TAVI with traditional AVR.
Methods:
One hundred and sixty five patients were operated on between 2008 and 2013 at LHCH. The procedures were undertaken using both the transapical and transfemoral approaches. Retrospective observational cohort study analysis has been performed assessing the mortality and morbidity of this population. The outcome data from the TAVI patients was propensity matched to a conventional AVR group. A Kaplan Meier curve was developed allowing prediction of 4 year survival following the two procedures.
Results:
122 TAVI patients were propensity matched with an AVR group. The TAVI group had a ICU length of stay of 1 day compared to 2 (p=0.001), an in hospital length of stay of 6 days compared to 8 (p= <0.001) in the AVR group. The TAVI group had an in-hospital mortality of 6 vs. 4 (p=0.52) and a 4-year mortality of 33 vs. 16 (p=0.007).
Conclusion:
TAVI patients have a shorter ICU and in hospital stay when compared to conventional AVR with no statistically significant difference in “in hospital mortality”. There is however a significant difference in 4 year survival when compared with AVR.