Table 1 Characteristic of the included studies.
Study | Year of publication | Population | Sample size | Intervention group, n | Control group, n | Males, % | Mean age, years | Mean EF (%) | EF < 40% (%) | Implanted device | Description of intervention | Blinded |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CHAMPION | 2011 | NYHA III | 550 | 270 | 280 | 73 | 61.5 | NR | 78.3 | CardioMems | Implantation of CARDIOMEMS and then randomization | single-blinded |
GUIDE-HF | 2021 | NYHA II–IV | 1000 | 497 | 503 | 63 | 70.5 | 39 | 49.2 | CardioMems | Implantation of CARDIOMEMS and then randomization | single-blinded |
MONITOR-HF | 2023 | NYHA III | 348 | 176 | 172 | 76 | 69.5 | 30 | 71.8 | CardioMems | Randomization and then implantation of CARDIOMEMS in intervention group | unmasked |
REDUCEhf | 2011 | NYHA II-III | 400 | 202 | 198 | 69 | 55 | 23 | NR | Chronicle | Implantation of ICD and Chronicle and then randomization | single-blinded |
COMPASS-HF | 2008 | NYHA III- IV | 274 | 134 | 140 | 65 | 58 | NR | NR | Chronicle | Implantation of Chronicle and then randomization | single-blinded |
