Table 3.
Parameters of cardiac rhythms derived from ECG traces of rat groups
| Groups | PR (ms) | QRS (ms) | QT (ms) |
|---|---|---|---|
| C1 | 43.6±3.58 | 34.8±1.1 | 72.8±2.68 |
| V1 | 42.2±2.44 | 35.3±1.01 | 71.5±2.38 |
| C2 | 42.8±1.79 | 34.8±1.1 | 74.8±2.68 |
| V2 | 47.8±2.48a,b | 35.2±1.59 | 79.8±6.9b |
Notes: Data are expressed as mean ± SD.
a
Significant P-values (P<0.05) vs chronic control group;
b
significant P-values (P<0.05) vs acute varenicline group. PR, QRS, and QT values are expressed as the gross mean ± SD.
Abbreviations: C1, control group for acute varenicline treatment (n=5); C2, control group for chronic varenicline treatment (n=5); V1, acute varenicline treatment group (n=11); V2, chronic varenicline treatment group (n=12); ECG, electrocardiogram; SD, standard deviation; vs, versus; ms, milliseconds.