ECG flutter wave amplitude (in mV) in both types of atrial flutter
| ECG lead | CCW | CW | p value |
|---|---|---|---|
| I | 0.06 (0.02) | 0.09 (0.03) | 0.00035 |
| II | 0.28 (0.07) | 0.16 (0.05) | 0.00001 |
| III | 0.25 (0.07) | 0.13 (0.05) | 0.00001 |
| aVR | 0.15 (0.05) | 0.12 (0.03) | 0.027 |
| aVL | 0.12 (0.04) | 0.09 (0.04) | 0.016 |
| aVF | 0.27 (0.06) | 0.13 (0.03) | 0.00001 |
| V1 | 0.14 (0.05) | 0.13 (0.05) | NS |
| V2 | 0.09 (0.04) | 0.09 (0.07) | NS |
| V3 | 0.09 (0.04) | 0.07 (0.06) | NS |
| V4 | 0.09 (0.05) | 0.07 (0.05) | NS |
| V5 | 0.09 (0.05) | 0.08 (0.04) | NS |
| V6 | 0.09 (0.04) | 0.08 (0.03) | NS |
Values are mean (SD).
CCW, counterclockwise; CW, clockwise.