Preoperative potential risk variables: comparison in patients with and without late postoperative left ventricular dysfunction and correlations with late postoperative shortening fraction
| Postoperative left ventricular dysfunction | Correlation with late postoperative LVSF | ||||
|---|---|---|---|---|---|
| Preoperative variables | Present (n=15) | Absent (n=25) | p Value | r Value | p Value |
| AVSD, atrioventricular septal defect; FC, functional class; LV, left ventricular; LVEDZ, LV end diastolic dimension Z score; LVESZ, LV end systolic dimension Z score; LVSF, left ventricular shortening fraction; MR, mitral regurgitation; MVR, mitral valve replacement; NS, not significant; OHS, open heart surgery; SF, shortening fraction. | |||||
| LVSF, mean (SD) | 0.30 (0.04) | 0.36 (0.07) | 0.001 | 0.47 | 0.002 |
| LVEDZ, mean (SD) | 13.5 (4.6) | 6.3 (4.8) | <0.001 | −0.45 | 0.004 |
| LVESZ, mean (SD) | 9.5 (3.3) | 3.6 (2.6) | <0.001 | −0.59 | <0.001 |
| Age at operation (years) | 9.1 (5.4) | 9.1 (4.6) | NS | – | |
| Number FC III or IV | 8 (53%) | 8 (32%) | NS | – | |
| Number MVR cases | 9 (60%) | 8 (32%) | 0.08 | – | |
| Number previous OHS | 4 (27%) | 12 (48%) | NS | – | |
| Number rheumatic MR | 6 (40%) | 8 (32%) | NS | – | |
| Number AVSD | 3 (20%) | 7 (28%) | NS | – | |