Table 5.
Freedom from AF following atrial size reduction.
| Reference | Group | Procedure** | Duration of Pre op AF (months) | n | Atrial diameter (mm) | Followup (months) | Freedom from AF | |
|---|---|---|---|---|---|---|---|---|
| Pre op | Post op | |||||||
| Wang et al., [68] | ELA | Modified full RF Cox Maze III + biatrial reduction procedure with reef imbricate technique | 45 ± 87 | 83 | 64 ± 12 | 49 ± 8 | 19 ± 16 (Last f/u) | 90% at last f/u |
| GLA | 56 ± 67 | 39 | 86 ± 17 | 51 ± 11 | 58% at last f/u | |||
| Scherer et al., [67] | Study | LA reduction procedure + RF Maze III | >12 | 20 | 60 ± 15 | 57 ± 5 | 36 (Last f/u) | 70.0% |
| Control | RF Maze III only | >12 | 20 | 69 ± 19 | 55 ± 6 | 61.1% | ||
| Badhwar et al., [69] | RF Maze III + LA reduction | 49.3 ± 58 | 70 | 67 ± 12 | 43 ± 6 | 10.7 ± 8.4 (Mean f/u) | 92.6% at 0–6/12 93.8% at 7–12/12 92% at 1 year |
|
| Marui et al., [66] | Study | Cryoablation modified LA maze III + volume reduction | 169.2 ± 64.8 | 44 | 67.1 ± 7.8 | 47.6 ± 6.3 | 36 (Last f/u) | 90% at 12/12 87% at 24/12 100% at 36/12 |
| Control | Cryoablation modified LA maze III only | 114 ± 61.2 | 36 | 64.5 ± 6.7 | 62.1 ± 7.9 | 69% at 12/12 67% at 24/12 64% at 36/12 |
||
| Scherer et al., [70] | LA reduction | >12 | 27 | 60.2 ± 9.8 | 44.5 ± 7.0 | 12 (Last f/u) | 63% at 1 year* | |
| García-Villarreal et al., [71] | LA reduction | 46.8 ± 34.8 | 23 | 81 ± 14.7 | 48 ± 7.7 | 13.9 ± 11 (Mean f/u) | 100% at last f/u | |
| Sankar and Farnsworth, [72] | MV replacement + CABG + LA reduction | 228 | 1 | 69 | 41 | 7 | Pt remained in SR at last f/u | |
*19% of patients described as “free from AF at 1 year” suffered from intermittent, symptomatic pAF during the 1-year followup period.
**All patients underwent concomitant MV ± TV ± AV procedures ± CABG at the time of procedure outlined.