Outcome following RHD-related mitral valve surgery within 30 days, stratified by aetiology and surgery type
| RHD | Non-RHD | |||
| Repair surgery n=119 | Replacement surgery n=1078 | Repair surgery n=3279 | Replacement surgery n=2400 | |
| Initial admission | ||||
| Ventilation (hours) | 11.3 | 13.5 | 8.0 | 10.0*† |
| (median IQR) | (6.6 to 21.8) | (8.0 to 21.0) | (6.0 to 12.0) | (7.0 to 17.0) |
| ICU stay | 46.8 | 46.7 | 47.1 | 68.2*† |
| (hours) (median, IQR) | (25.8 to 96.0) | (24.0 to 91.6) | (24.7 to 88.5) | (36.6 to 122.8) |
| Post-procedure length of stay | 11.7 | 12.2* | 11.4 | 16.7*† |
| (days) (mean, SD) | (11.8) | (13.4) | (11.8) | (76.6) |
| Reoperation for valve dysfunction | 1.7 | 0.3* | 0.5 | 0.3 |
| (%, 95% CI) | (0.2 to 5.9) | (0.06 to 0.8) | (0.3 to 0.8) | (0.1 to 0.7) |
| Reoperation not related to valve dysfunction | 7.6 | 7.3 | 6.3 | 10.9*† |
| (%, 95% CI) | (3.5 to 13.9) | (5.8 to 9.0) | (5.4 to 7.1) | (9.7 to 12.2) |
| Mortality (all cause) | 4.2 | 3.8 | 3.5 | 7.4*† |
| (%, 95% CI) | (1.4 to 9.5) | (2.7 to 5.1) | (2.9 to 4.2) | (6.4 to 8.5) |
| Readmission | 9.7 | 15.6 | 9.9 | 13.1*† |
| (%, 95% CI) | (5.0 to 16. 8) | (13.5 to 18.0) | (8.9 to 11.0) | (11.7 to 14.5) |
| Other complications | ||||
| Readmission for valve dysfunction | 0 | 0 | 0.6 | 0.6 |
| (%, 95% CI) | (0.3 to 1.3) | (0.2 to 1.3) | ||
| Acute kidney injury | 4.3 | 6.7 | 5.4 | 9.7*† |
| (%, 95% CI) | (1.4 to 9.7) | (5.3 to 8.4) | (4.6 to 6.2) | (8.6 to 11.0) |
| New AF | 15.1 | 17.2 | 24.3 | 23.4 |
| (% without prior AF, 95% CI) | (15.0 to 19.5) | (9.2 to 22.8) | (22.8 to 25.8) | (21.7 to 25.1) |
| Stroke/TIA | 1.7 | 1.7 | 2.1 | 3.8*† |
| (%, 95% CI) | (0.2 to 5.9) | (1.0 to 2.6) | (1.6 to 2.7) | (3.0 to 4.6) |
| Deep sternal wound infection | 0.8 | 1.5 | 0.8 | 0.8 |
| (%, 95% CI) | (0.0 to 4.6) | (0.9 to 2.4) | (0.5 to 1.2) | (0.5 to 1.3) |
| Anticoagulant complication (bleeding or embolisation) | 4.2 | 2.7 | 1.6‡ | 3.1* |
| (%, 95% CI) | (1.4 to 9.5) | (1.8 to 3.8) | (1.1 to 1.9) | (2.5 to 3.9) |
| Heart failure | 1.7 | 3.4 | 0.9 | 3.8* |
| (%, 95% CI) | (0.0 to 9.1) | (2.0 to 5.5) | (0.4 to 1.7) | (2.6 to 5.3) |
| Septicaemia (positive blood culture with signs of infection) | 1.7 | 1.5 | 1.4 | 3.1*† |
| (%, 95% CI) | (0.2 to 6.0) | (0.9 to 2.4) | (1.1 to 1.9) | (2.5 to 3.9) |
*Comparing repair and replacement, p<0.05.
†Comparing RHD and non-RHD replacement, p<0.05.
‡Comparing RHD and non-RHD repair, p<0.05.
AF, atrial fibrillation; ICU, intensive care unit; RHD, rhuematic heart disease; TIA, transient ischaemic attack.