Table 2.
Results of electrocardiographic analysis in patients with ankylosing spondylitis (n = 210)
| Heart rate (beats/min) |
66 (12) |
| RR-interval |
930 (159) |
| P-wave duration** |
97 (15) |
| PQ-interval* |
164 (27) |
| QRS-interval** |
88 (14) |
| QRS-interval <100* |
153 (73%) |
| QRS-interval 100-119* |
50 (24%) |
| QRS-interval ≥120* |
7 (3.3%) |
| QTcB-interval** |
406 (29) |
| Atrial fibrillation |
2 (1.0%) |
| AV-block, 1st degree (≥220) |
7 (3.3%) |
| AV-block, 1st degree (≥200) |
19 (9%) |
| AV-block, 2nd degree |
0 |
| AV-block, 3rd degree |
0 |
| Left anterior fascicular block |
12 (6%) |
| Pacemaker |
1 (0.5%) |
| Any (≥1) conduction abnormality |
21 (10%) |
| with AV-block, 1st degree (≥200) | 31 (15%) |
* n = 209 (pacemaker patient excluded).
** n = 207 (pacemaker and atrial fibrillation patients excluded).
Data are presented as mean (SD) or as otherwise stated. All intervals are in ms.