Table 2.
EKG findings in patients diagnosed with obstructive sleep apnea and controls.
| OSA (n= 215) | Control (n= 40) | p |
p, when age and gender controlled |
|
|---|---|---|---|---|
| Atrial Fibrillation, n (%) | 4 (1.9%) | 0 | 0.413 | |
|
| ||||
| Left Atrial | 33 (15.3%) | 9 (22.5%) | 0.157 | |
| enlargement, n (%) | ||||
|
| ||||
| Right Ventricle | >0.05 | |||
| hypertrophy, n (%) | 0 | 1 (2.5%) | ||
|
| ||||
| Left Ventricle | >0.05 | |||
| hypertrophy, n (%) | 32 (14.8%) | 7 (17.5%) | ||
|
| ||||
| Axis, Median ± SD | 15 ±37 | 27 ± 44.9 | >0.05 | |
|
| ||||
| Right axis deviation, | 5 (2.3%) | 4(10%) | >0.05 | |
| (+90) - (+180), n (%) | ||||
|
| ||||
| Left axis deviation, | 24 (11.2%) | 0 | >0.05 | |
| (-30) - (-90), n (%) | ||||
|
| ||||
| Normal Axis, (+90) - (-90), n (%) | 186 (86.5%) | 36 (90%) | >0.05 | |
|
| ||||
| Deep S in V5-6, n (%) | 84 (39.1%) | 8 (20%) | 0.014 | 0.17 |
|
| ||||
| RS pattern with Deep S in Leads I and AVF, n (%) | 95 (44.2%) | 10 (25%) | 0.017 | 0.14 |
|
| ||||
| Atrial Premature | >0.05 | |||
| Contractions, n (%) | 6 (2.8%) | 0 | ||
|
| ||||
| Left Anterior | >0.05 | |||
| Hemi block, n (%) | 13 (6%) | 0 | ||
|
| ||||
| Premature Ventricular | >0.05 | |||
| Contractions, n (%) | 8 (3.7 %) | 0 | ||
|
| ||||
| Atrioventricular Block, n (%) | 9 (4.2 %) | 1 (2.5%) | >0.05 | |
|
| ||||
| Right Bundle Branch | >0.05 | |||
| Block, n (%) | 8 (3.7 %) | 0 | ||
|
| ||||
| Heart Rate, Median ±SD | 75 ±14.3 | 72 ± 19.5 | >0.05 | |
|
| ||||
| Bradycardia, n (%) | 23 (10.7 %) | 6 (15%) | >0.05 | |
|
| ||||
| Tachycardia, n (%) | 12 (5.6 %) | 4 (10%) | >0.05 | |
|
| ||||
| Normal Heart Rate, n (%) | 181 (84.2%) | 30 (75%) | >0.05 | |
|
| ||||
| QTc, Median ±SD | 434 ± 31.6 | 430 ± 79.8 | >0.05 | |
|
| ||||
| Prolonged QTc, n (%) | 8 (3.7 %) | 5 (12.5%) | >0.05 | |
|
| ||||
| PR, Median ±SD | 160 ± 28.3 | 158.5 ± 26.4 | >0.05 | |
|
| ||||
| QRS, Median ±SD | 92 ± 14.7 | 88 ± 8.9 | >0.05 | |