Table 4.
Imaging Characteristics of Participants With SA and Startified by Treatment Group
| Variable | SA Positive (142) | SA Treated (71) | SA Untreated (71) | P Value |
|---|---|---|---|---|
| Echocardiographic parameters | ||||
| LVEF, % | 56 (9) | 56 (9) | 55 (10) | 0.27 |
| LV diastolic dimension, mm | 50 (5) | 50 (5) | 49 (6) | 0.62 |
| Estimated PASP, mm Hg | 31 (7) | 30 (7) | 32 (8) | 0.31 |
| Left atrial dimension, mm | 43 (6) | 41 (6) | 44 (6) | 0.002 |
| Cardiac magnetic resonance | ||||
| LVEDV, mL | 174 (43) | 169 (40) | 179 (45) | 0.18 |
| LVEDV index, mL/m2 | 80 (20) | 78 (19) | 82 (22) | 0.30 |
| LVESV, mL | 77 (26) | 77 (25) | 77 (25) | 0.88 |
| LVESV index, mL/m2 | 36 (12) | 36 (12) | 35 (12) | 0.74 |
| LVEF, % | 56 (10) | 55 (10) | 57 (10) | 0.88 |
| LV mass, g | 164 (34) | 154 (29) | 174 (36) | 0.005 |
| LV mass index, g/m2 | 75 (14) | 71 (11) | 80 (14) | 0.0002 |
| RVEDV, mL | 171 (44) | 167 (37) | 176 (51) | 0.27 |
| RVEDV index, mL/m2 | 78 (19) | 77 (16) | 80 (21) | 0.47 |
| RVESV, mL | 87 (27) | 86 (24) | 86 (29) | 0.97 |
| RVESV index, mL/m2 | 40 (11) | 40 (11) | 39 (12) | 0.67 |
| RVEF, % | 51 (8) | 50 (7) | 51 (8) | 0.24 |
| Left atrial dimension, mm | 44 (8) | 41 (8) | 46 (8) | 0.0008 |
| LV LGE, n (%) | 27 (19) | 12 (18) | 15 (20) | 0.67 |
| LV LGE FWHM, % of LV mass | 6.0 (3) | 5.4 (3) | 6.6 (3) | 0.29 |
| LV LGE location | ||||
| Subendocardial | 12 (8) | 2 (3) | 10 (14) | 0.03 |
| Transmural | 3 (2) | 2 (3) | 1 (1) | 1.00 |
| Epicardial | 0 (0) | — | — | — |
| Mid‐myocardial | 7 (5) | 6 (8) | 3 (4) | 0.49 |
| Insertion points | 8 (6) | 3 (4) | 5 (7) | 0.72 |
All data are number (percentage) or mean (SD) unless otherwise indicated. LGE FWHM indicates late gadolinium enhancement using full‐width half‐maximum method; LV, left ventricular; LVEF, left ventricular ejection fraction; LVEDV, left ventricular end‐diastolic volume; LVESV, left ventricular end‐systolic volume; PASP, pulmonary artery systolic pressure; RVEDV, right ventricular end‐diastolic volume; RVESV, right ventricular end‐systolic volume; RVEF, right ventricular ejection fraction; SA, sleep apnea.