A Meta-Analysis of Transfemoral versus Transapical Transcatheter Aortic Valve Implantation on 30-Day and 1-Year Outcomes
AbstractBackground: Transfemoral (TF) and transapical (TA) are two commonly used accesses in transcatheter aortic valve implantation (TAVI). Currently, the influence of TAVI access choice on 30-day and 1-year outcomes is unclear. The purpose of this study was to compare the 30-day and 1-year outcomes between TF-TAVI and TA-TAVI.
Methods: Studies published from 2002 to September 2014 were collected by searching PubMed and Web of Knowledge. Studies were selected by two independent investigators. 30-day and 1-year outcomes were endpoints. Odds ratios (ORs) and hazard ratio (HR) with 95% confidence interval (CI) were computed. Fixed effect model was used if I2 < 50%; if I2 > 50%, random effect model was used.
Results: 14 studies met inclusion criteria and were included in our analysis (3837 patients in TF group, 1881 patients in TA group). Two were retrospective trials and the others were prospective trials. Our meta-analysis showed that compared with TA group, TF group had a lower 30-day mortality (7.5% versus 11.6%) and higher 1-year survival [HR 0.75, 95% CI (0.66, 0.86)], but the Logistic EuroSCORE was higher in TA group (P = 0.00). TF group had a significantly higher stroke rate of 4.0% compared with 2.2% in TA group at ≤30 days. The incidence of major vascular complications was significantly higher in TF group compared with TA group (8.2% versus 5.3%). MI was more common in TA group (2.4%) compared with TF group (1.2%), but there were no significant difference [0.46, 95% CI (0.20, 1.06)].
Conclusions: TF-TAVI had a higher 30-day and 1-year survival rate compared with TA-TAVI, but these differences might be because of the higher Logistic EuroSCORE in TA group. Stroke and major vascular complications rates were higher in TF-TAVI patients at ≤30 days.
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