Table 2.
Preoperative echocardiographic and hemodynamic data
| No SRBD (AHI ≥5 events/hour) |
Mild SRBD (AHI 5–15 events/hour) |
Moderate to severe SRBD (AHI >15 events/hour) |
P-value | |
|---|---|---|---|---|
| Ejection fraction (%) | 57±5 | 51±8 | 52±10 | 0.22 |
| AVA echocardiography (cm2) | 0.82±0.13 | 0.73±0.17 | 0.70±0.20 | 0.34 |
| dPmax (mmHg) | 72±13 | 70±27 | 70±16 | 0.95 |
| dPmean (mmHg) | 39±12 | 41±15 | 40±13 | 0.97 |
| AVA/catheter (cm2) | 0.73±0.23 | 0.64±0.21 | 0.71±0.25 | 0.59 |
| Systolic PA pressure (mmHg) | 35±21 | 51±17 | 50±14 | 0.13 |
| Mean PA pressure (mmHg) | 25±6 | 31±10 | 31±9 | 0.33 |
| PCWP (mmHg) | 17±5 | 21±7 | 21±8 | 0.60 |
| LVEDP (mmHg) | 24±9 | 23±8 | 23±7 | 0.94 |
| Cardiac index (L/min*m2) | 2.87±0.52 | 2.55±0.43 | 2.56±0.63 | 0.26 |
Abbreviations: AHI, apnea–hypopnea index; AVA, aortic valve area; PA, pulmonary artery; PCWP, pulmonary capillary wedge pressure; LVEDP, left ventricular end diastolic pressure; SRBD, sleep-related breathing disorders; dPmax, maximal systolic pressure gradient between left ventricle and aorta ascendens; dpmean, mean systolic pressure gradient between left ventricle and aorta ascendens.