Effect of intravenous isoprenaline and class 1C drugs on mean of 100 consecutive atrial fibrillation intervals (MFF) and mean RR interval under basal conditions
| Baseline | 5 Minutes | Isoprenaline | Class 1C drug | |
|---|---|---|---|---|
| MFF HRA (ms) | 177 (22)2-150 † | 162 (16)2-150 | 144 (11)2-150 | 295 (49) |
| MFF CS (ms) | 180 (16)2-150 † | 168 (11)2-150 | 148 (13)2-150 | 300 (47) |
| RR (ms) | 480 (105) | 480 (108) | 377 (37) | 529 (138)† |
↵2-150 p < 0.05 v class 1C drug; †p < 0.05 v isoprenaline.
CS, coronary sinus; HRA, high right atrium.