Table 3.
Frequencies of repeated measures of electrocardiogram rhythms (n = 97)
| ECG rhythm | (1) Preoperative | (2) Five d postoperative | (3) Follow-up | McNemar's test |
|
|---|---|---|---|---|---|
| Z | P | ||||
| SR | 58 | 24 | 26 | 12.19 | <.001 |
| SR and LBBB | 6 | 25 | 16 | 11.65 | .006 |
| AF | 14 | 12 | 10 | 0.67 | 1.00 |
| SR and first-degree HB | 6 | 4 | 6 | 0.40 | 1.00 |
| SR and RBBB | 4 | 7 | 2 | 0.82 | 1.00 |
| SR, first-degree HB, and LBBB | 1 | 5 | 1 | 2.67 | 1.00 |
| SR and LAFB | 1 | 0 | 0 | ||
| SR, first-degree HB, and RBBB | 3 | 0 | 0 | ||
| AF and RBBB | 2 | 1 | 0 | ||
| Paced rhythm | 0 | 11 | 0 | ||
| AF and LBBB | 6 | 1 | 0 | ||
| PPM | 0 | 0 | 14 | ||
| SR, second-degree HB (Mobitz type 2), and RBBB | 0 | 1 | 0 | ||
Values are given as percentages. ECG, Electrocardiogram; SR, sinus rhythm; LBBB, left bundle branch block; AF, atrial fibrillation; HB, heart block; RBBB, right bundle branch block; LAFB, left anterior fascicular block; PPM, permanent pacemaker.