Table 5 Lead Measurements and Battery status
Follow-up | |||||
|---|---|---|---|---|---|
Parameter | 1stFU (n = 30) | 2ndFU (n = 30) | 3rdFU (n = 29) | 4thFU (n = 29) | p = * |
Time from MRI (months) | - | - | 1.1 ± 0.3 | 3.0 ± 0.3 | |
RA sensing (mV) | 3.2 ± 2.1 | 3.2 ± 2.3 | 3.2 ± 2.1 | 3.1 ± 2.0 | n.s. |
RA pacing threshold (V@0,4 ms) | 0.68 ± 0.18 | 0.67 ± 0.16 | 0.71 ± 0.24 | 0.73 ± 0.15 | n.s. |
RA pacing impedance (Ohms) | 507 ± 55 | 500 ± 46 | 520 ± 50 | 495 ± 59 | n.s. |
RV sensing (mV) | 15.0 ± 6.0 | 15.0 ± 6.0 | 14.9 ± 6.5 | 14.7 ± 6.3 | n.s. |
RV pacing threshold (V@0,4 ms) | 0.78 ± 0.22 | 0.79 ± 0.20 | 0.78 ± 0.22 | 0.82 ± 0.24 | n.s. |
RV pacing impedance (Ohms) | 608 ± 54 | 599 ± 52+ | 607 ± 47 | 597 ± 57 | n.s. |
Battery status (%) | 100 ± 0 | 100 ± 0 | 100 ± 0 | 99.7 ± 1.3 | n.s. |
Value changes (% [median]; compared with pre MRI FU) | |||||
RA sensing | −2 ± 20 [0] | +6 ± 43 [0] | +15 ± 57 [8] | ||
RA PTH | +2 ± 23 [0] | +2 ± 30 [0] | +9 ± 7 [0] | ||
RA Pimp | −1 ± 4 [0] | +3 ± 6 [4] | −2 ± 11 [0] | ||
RV sensing | −1 ± 6 [−1] | −2 ± 12 [−2] | −4 ± 14 [−1] | ||
RV PTH | +2 ± 8 [0] | 0 ±12 [0] | 7 ± 24 [0] | ||
RV PImp | −2 ± 2 [−2] | 0 ± 6 [0] | −2 ± 7 [0] | ||
Battery status | 0 ± 0 [0] | 0 ± 0 [0] | 0 ± 1 [0] | ||