Table 1 Summary of the included studies
Study ID | Study design | Multicentric or single centric | Propensity-matched? | Country | Duration | Number of patients | Details of TAVI | Details of SAVR | Main inclusion criteria | Main exclusion criteria | Severity of AR | Implanted valve type | Valve size | Valve calcification | Follow-up period | Primary outcome | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TAVI | SAVR | Total | ||||||||||||||||
Alharbi et al. 2020 [19] | Propensity-matched retrospective cohort study | Multicenter | Yes | United States | 2016 to 2017 | 915 | 1390 | 2305 | The NIS database lacks procedural details for TAVI and SAVR | Patients with pure AR | Infective endocarditis, concomitant AS, and those below the age of 18 years | NR | NR | NR | NR | In-hospital | In-hospital mortality | |
Mentias et al. 2023 [18] | Propensity-matched retrospective cohort study | Multicenter | Yes | United States | 2016 to 2019 | 1147 | 9880 | 11,027 | Transfemoral TAVI | NR | Patients with pure AR | Concomitant AS, valve-in-valve intervention, and other concomitant cardiac surgery or intervention | NR | NR | NR | NR | One year | One-year mortality |
Oettinger et al. 2023 [31] | Retrospective cohort study | Multicenter | No | Germany | 2018 to 2020 | 746 | 4025 | 4771 | - Transapical TAVI - Transfemoral TAVI with a self-expandable and balloon-expandable valve | NR | Patients with pure AR | Concomitant AS, concomitant cardiac surgery or intervention | NR | Balloon-expandable and self-expanding valves | NR | NR | In-hospital | In-hospital mortality, major bleeding, and postoperative delirium |
Rali et al. 2022 [32] | Retrospective cohort study | Multicenter | No | United States | 2015 to 2018 | 105 | 50 | 155 | The NIS database lacks procedural details for TAVR and SAVR. | Patients with pure AR | NR | NR | NR | NR | NR | NR | A composite of in-hospital mortality, stroke, transient ischemic stroke, myocardial infarction, pacemaker implantation, need for open surgery, vascular complications, and cardiac tamponade. | |
Stachon et al. 2020 [20] | Retrospective cohort study | Multicenter | No | Germany | 2007 to 2015 | 724 | 10,528 | 11,252 | Transapical and transfemoral TAVI | NR | Patients with pure AR and/or AS | NR | NR | NR | NR | NR | In-hospital | In-hospital mortality and complications (stroke, bleeding, post-operative delirium, ventilation, and length of hospital stay) |
Zhou et al. 2023 [21] | Propensity-matched retrospective cohort study | Multicenter | Yes | China | 2016 to 2019 | 1820 | 1820 | 3640 | NR | Patients with AR | Concomitant AS, aged < 18 years, infective endocarditis, history of other cardiac surgeries | NR | NR | NR | NR | Six months | In-hospital mortality, mechanical ventilation, transfusion, sepsis, bacterial pneumonia, acute kidney injury, cardiac arrest, and intracranial hemorrhage | |