Table 1.
Comparison of average slow wave characteristics before and after the administration of nifedipine
| Pre-nifedipine | Post-nifedipine | Significance | |
|---|---|---|---|
| Velocity (mm s−1) | 12.8 ± 1.1 | 11.9 ± 0.8 | P= 0.55 |
| Downstroke width (s) | 0.4 ± 0.05 | 0.4 ± 0.04 | P= 0.96 |
| Downstroke rate (μV s−1) | −123.0 ± 20.7 | −94.2 ± 11.5 | P= 0.22 |
| Amplitude (μV) | 41.7 ± 5.8 | 29.1 ± 4.2 | P= 0.10 |
| Frequency (cycles min−1) | 15.6 ± 1.3 | 11.8 ± 0.8 | P= 0.03 |
Slow wave velocity, downstroke width, downstroke rate, and amplitude all remained similar before and after nifedipine was administered. Slow wave frequency decreased by 24%.