Table 1.
Studies included in the meta‐analysis
| Study | Year of publication | Center | Design | Freezing protocol | Bonus freeze | Number of patients in POLARx group | Number of patients in AFA‐Pro group | Details of POLARx group | Details of AFA‐Pro group |
|---|---|---|---|---|---|---|---|---|---|
| Creta et al. 9 | 2021 | Barts Heart Center (UK) | Single‐center, non‐RCT | ≥180 s/PV | No | 40 | 40 | Consecutive cohort | Consecutive cohort |
| Kochi et al. 10 | 2021 | Centro Cardiologico Monzino IRCCS (Italy) | Single‐center, non‐RCT | ≥180 s/PV | No | 20 | 50 | Consecutive cohort from August to October 2020 | Consecutive cohort from October 2018 to February 2019 |
| Tilz et al. 11 | 2021 | University Heart Center Lübeck (Germany) | Single‐center, non‐RCT | 180 s/PV if TTI <60 s | Only if TTI >60 s | 25 | 25 | Consecutive cohort from August to October 2020 | Consecutive cohort from May to July 2020 |
| Yap et al. 12 | 2021 | Erasmus MC (NL), Clinical Hospital Center Split (Croatia), Städtisches Klinikum Karlsruhe (Germany) | Multi‐center, non‐RCT | 180 s/PV if TTI <60 s, otherwise 240 s | No | 57 | 53 | Consecutive cohort from May to October 2020 | Consecutive cohort from May to October 2020 |
Abbreviations: PV, pulmonary vein; RCT, randomized controlled trial; TTI, time‐to‐isolation.