From: Cardiac conduction system abnormalities in ankylosing spondylitis: a cross-sectional study
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%) |