TABLE 2.
LLTS (n = 20) | Control (n = 20) | p Value* | |||
---|---|---|---|---|---|
Baseline | 1 hour | Baseline | 1 hour | ||
AF duration, min | 16.7 ± 6.2 | 10.4 ± 5.2 | 17.1 ± 5.7 | 18.5 ± 5.6 | 0.002 |
AF cycle length, ms | 189.1 ± 37.6 | 217.9 ± 33.0 | 200.6 ± 42.3 | 191.9 ± 49.1 | 0.0002 |
Number of attempts (median, interquartile range, min and max) | 2 (1 to 4) (1 to 10) | 4 (2 to 6) (1 to 15) | 2 (1 to 4) (1 to 10) | 1 (1 to 2) (1 to 6) | 0.005 |
RA AERP, ms | 222.3 ± 31.1 | 232.3 ± 31.1 | 236.4 ± 46.5 | 227.8 ± 43.0 | 0.04 |
CS AERP, ms | 222.7 ± 41.0 | 230.8 ± 41.0 | 253.3 ± 53.7 | 240.7 ± 50.6 | 0.04 |
Values are mean ± SD unless otherwise indicated.
Comparison of the change in each parameter before and after LLTS or sham between the 2 groups.
AERP = atrial effective refractory period; CS = coronary sinus; RA = right atrial; other abbreviations as in Table 1.