Table 1 Comparison of baseline characteristics of enrolled patients grouped by comorbid OSA
Variable | Total (n = 83) | Obstructive sleep apnoea | p value | |
|---|---|---|---|---|
Yes (n = 41) | No (n = 42) | |||
Male gender | 66 (79.5) | 32 (78.0) | 34 (81.0) | 0.743 |
Age (y) | 47.7 ± 10.8 | 50.3 ± 9.7 | 45.1 ± 11.4 | 0.023 |
Body mass index (kg/m2) | 25.8 ± 3.8 | 26.7 ± 3.6 | 24.9 ± 3.9 | 0.035 |
STOP-BANG score | 5.0 (4.0, 6.0) | 5.0 (4.0, 6.5) | 3.0 (2.0, 4.0) | 0.001 |
STOP-BANG score ≥ 4 | 53 (63.9) | 35 (85.4) | 18 (42.9) | < 0.001 |
Epworth sleepiness scale | 7.0 (4.0, 12.0) | 10.0 (5.0, 12.0) | 4.5 (3.0, 9.8) | 0.004 |
Apnoea hypopnea index (events/h) | 13.8 (5.8, 30.2) | 30.2 (20.5, 48.3) | 5.9 (3.0, 9.4) | < 0.001 |
Oxygen desaturation index (events/h) | 14.3 (5.5, 26.9) | 26.0 (19.8, 46.3) | 5.9 (2.5, 8.9) | < 0.001 |
MinSaO2 (%) | 78.7 ± 11.1 | 74.4 ± 11.3 | 82.9 ± 9.2 | 0.001 |
MeanSaO2 (%) | 93.9 ± 2.4 | 93.1 ± 2.3 | 94.7 ± 2.2 | 0.005 |
T90SaO2 (%) | 2.0 (0.2, 7.4) | 5.2 (1.3, 18.3) | 0.35 (0, 2.7) | < 0.001 |
Marfan syndrome | 9 (10.8) | 2 (4.9) | 7 (21.8) | 0.156 |
Family history of aortic disease | 10 (12.0) | 4 (9.8) | 6 (14.3) | 0.738 |
Uncontrolled hypertension | 72 (86.7) | 39 (95.1) | 33 (78.6) | 0.026 |
Dyslipidemia | 23 (27.7) | 13 (31.7) | 10 (23.8) | 0.422 |
Diabetes mellitus | 7 (8.4) | 4 (9.8) | 3 (7.1) | 0.713 |
Chronic obstructive pulmonary disease | 11 (13.3) | 8 (19.3) | 3 (7.1) | 0.097 |
Coronary heart disease | 11 (13.3) | 5 (12.2) | 6 (14.3) | 0.779 |
Cerebrovascular accident | 9 (10.8) | 5 (12.2) | 4 (9.5) | 0.738 |
Current smoker | 55 (66.3) | 30 (73.2) | 25 (60.0) | 0.189 |
Bicuspid aortic valve | 2 (2.4) | 0 (0) | 2 (4.8) | 0.494 |
Aortic regurgitation* | 31 (37.3) | 14 (34.1) | 17 (40.5) | 0.551 |
Preoperative hypoxaemia | 39 (47.0) | 20 (48.8) | 19 (45.2) | 0.746 |
Left ventricular ejection fraction (%) | 62.5 ± 5.2 | 63.1 ± 6.1 | 62.0 ± 4.2 | 0.326 |
Pericardial effusion†| 50 (60.2) | 29 (70.7) | 21 (46.1) | 0.054 |