Table 2.
Comparison of mitral valve pathology, cardioechographic parameters and pre-operative scores of patients with and without AKI
| All Patients (n=196) |
Non AKI (n=120) |
AKI (n=76) |
p-value | |
|---|---|---|---|---|
| Mitral valve pathology | ||||
| Rheumatic | 35 (17.9) | 22 (18.3) | 13 (17.1) | 0.827 |
| Degeneration | 88 (44.9) | 60 (50.0) | 28 (36.8) | 0.071 |
| Infective Endocarditis | 25 (12.8) | 17 (14.2) | 8 (10.5) | 0.457 |
| Dilated cardiomyopathy | 40 (20.4) | 14 (11.7) | 26 (34.2) | <0.001 |
| Others | 8 (4.1) | 7 (5.8) | 1 (1.3) | 0.119 |
| Pre-operative echogram | ||||
| Ejection fraction (%) | 62±1 | 64±1 | 58±2 | 0.022 |
| LVESD (mm) | 38±1 | 36±1 | 40±2 | 0.031 |
| LVESV (mm3) | 63±4 | 54±4 | 77±9 | 0.016 |
| LVEDD (mm) | 57±1 | 57±1 | 57±1 | 0.918 |
| LVEDV (mm3) | 163±9 | 155±8 | 174±10 | 0.115 |
| Tricuspid Regurgitation III/IV | 26 (13.3) | 12 (10.0) | 14 (18.4) | 0.129 |
| Pre-operative scores | ||||
| STS risk of mortality | 4.3±0.6 | 2.8±0.6 | 6.5±1.2 | 0.007 |
| STS renal failure | 4.1±0.4 | 2.6±0.3 | 6.5±0.9 | <0.001 |
| ACEF | 1.1±0.1 | 0.9±0 | 1.3±0.1 | <0.001 |
Abbreviation: ACEF, age, creatinine, and ejection fraction; AKI, acute kidney injury; LVESD, left ventricular end-systolic diameter; LVESV, left ventricular end-systolic volume; LVEDD, left ventricular end-diastolic diameter; LVEDV, left ventricular end-diastolic volume; STS: Society of Thoracic Surgeons.
Continuous variables are presented as mean ± standard error, and categorical variables, as number (percentage).