Table 1.
Variable | Tbx5+/+ | Tbx5del/+ | Tbx5vdel/+ |
---|---|---|---|
Heart rate (min−1) | 623 ± 39 | 571 ± 51 | 660 ± 71 |
P width | 10.8 ± 0.5 | 17.7 ± 0.4* | 10.2 ± 0.3 |
PQ interval (ms) | 31.2 ± 1.9 | 40.0 ± 0.9* | 31.7 ± 1.9 |
QRS width | 12.7 ± 0.91 | 11.5 ± 1.3 | 12.4 ± 1.19 |
Arrhythmias | None | 1,2 AVB, sinus pause | None |
Telemetry electrocardiogram measurements at 8–10 weeks of age (mean ± SEM); n = 10–12;
*, P < 0.05 vs.WT.