Table 2 Electrocardiographic profile
From: Atrial depolarization abnormalities in pulmonary sarcoidosis
Electrocardiographic data | Sarcoid [n = 60] | Control [n = 60] | P value |
|---|---|---|---|
Rhythm | |||
Sinus rhythm | 59 | 60 | |
Ectopic atrial rhythm | 1 | 0 | |
PR interval [ms] | 145 ± 22 | 138 ± 21 | 0.8 |
QRS duration [ms] | 88 ± 15 | 86 ± 11 | 0.3 |
QT interval (corrected) [ms] | 424 ± 34 | 431 ± 29 | 0.75 |
Conduction defect | 41 | 34 | 0.23 |
Right bundle branch block | 4 | 4 | |
Left bundle branch block | 1 | 0 | |
Left anterior fascicular block | 1 | 0 | |
Left posterior fascicular block | 0 | 0 | |
Non-specific IVCD | 35 | 30 | |
Non-specific IVCD | 0.48 | ||
Inferior leads | 18 | 18 | |
Anterior/lateral leads | 1 | 2 | |
Diffuse | 16 | 10 | |
Lead III | |||
Bifid P wave | 9 | 2 | 0.029 |
Biphasic P wave | 13 | 2 | 0.003 |
rsr’ pattern | 3 | 5 | 0.115 |
Lead II bifid-P wave | 10 | 4 | 0.09 |
Lead aVF-rsr’ pattern | 5 | 0 | 0.03 |