Table 1. Study characteristics.
| Primary author | Year | Institution(s) | Study period | Type of study | Type of SURD valve | n | Mean follow-up time (years) | GRADE score |
|---|---|---|---|---|---|---|---|---|
| Shrestha (11) | 2016 | Pilot, Pivotal and CAVALIER trial centers (25 centers from 8 European countries) | 2007–2012 | OS, P | Perceval S | 731 | 1.8±0.9* | +++ |
| Laufer (12) | 2017 | TRITON trial—6 European centers from Germany and Austria | NR | OS, P | Intuity | 287 | 3.7±1.4 | +++ |
| Andreas (13) | 2019 | Medical University of Vienna, Vienna, Austria | 2010–2017 | OS, P | Intuity | 500 | 1.6±1.8 | +++ |
| Glauber (14) | 2020 | SURE-AVR registry—29 international centers | 2011–2018 | OS, P | Perceval S | 480 | 2.4 | +++ |
*, calculated from median and range using methods of Wan et al. OS, observational study; P, prospective; NR, not reported.