Table 2.
Far field R-wave sensing (FFRS) characteristics at both right atrial stimulation sites.
| Sensing configuration | Parameters | RAA group | BB group | P-value |
|---|---|---|---|---|
| UP | FFRS trsh (mV) | 0.9 ± 0.4 (0.5 – 3.1) | 0.5 ± 0.1(0.1 – 1.3) | P < 0.05 |
| R-T1 (msec) | 33 ± 21 (16 – 88) | 30 ± 19 (12 – 77) | ns | |
| BP | FFRS trsh (mV) | 0.6 ± 0.3 (0.4 – 2.0) | 0.3 ± 0.1 (0.1 – 1.1) | P < 0.05 |
| R-T1 (msec) | 39 ± 18 (28 – 76) | 44 ± 22 (24 – 85) | ns |
Data are presented as mean ± standard deviation and range
Legenda FFRS trsh: FFRS threshold; R-T1: FFRS timing; UP: unipolar; BP: bipolar.