Table 2.
Comparison of demographic, comorbidity and peri-operative characteristics in hospital survivors (n = 36) with progressive CKD and those without
| Progressive CKD (n = 14) | No progressive CKD (n = 22) | p value | |
|---|---|---|---|
| Age, years | 68 (54, 71) | 66 (61, 76) | 0.66 |
| Male gender | 9 (64.3) | 14 (63.6) | 0.97 |
| Diabetes mellitus | 10 (71.4) | 18 (81.8) | 0.68 |
| Hypertension | 14 (100) | 21 (95.5) | 1.00 |
| Cerebral or peripheral vascular disease | 4 (28.6) | 2 (9.1) | 0.18 |
| Pre-operative myocardial infarction | 6 (42.9) | 10 (45.5) | 0.88 |
| Pre-operative left ventricular ejection fraction <35% | 8 (57.1) | 8 (36.4) | 0.22 |
| EuroSCORE | 3.5 (2.2, 15.6) | 2.9 (1.8, 5.9) | 0.23 |
| Pre-operative inotropic or ventilatory support | 3 (21.4) | 3 (13.6) | 0.66 |
| Pre-operative hemoglobin, g/dl | 10.7 (10.0, 12.4) | 12.1 (10.2, 13.1) | 0.49 |
| Decrease in post-operative hemoglobin ≥20% from pre-operative level | 7 (50.0) | 8 (36.4) | 0.42 |
| Emergency surgery | 4 (28.6) | 8 (36.4) | 0.72 |
| Concurrent valve surgery | 3 (21.4) | 1 (4.5) | 0.28 |
| CPB duration, min | 87 (74, 122) | 105 (79, 122) | 0.28 |
| Surgical re-exploration | 3 (21.4) | 3 (13.6) | 0.66 |
| Pre-operative serum creatinine, µmol/l | 214 (159, 399) | 155 (112, 187) | 0.015 |
| Pre-operative CKD EPI eGFR, ml/min/1.73 m2 | 20.4 (11.9, 38.2) | 39.9 (25.9, 55.5) | 0.027 |
| AKIN stage 3 by creatinine criteria at RRT initiation | 10 (71.4) | 9 (40.9) | 0.09 |
| Interval from CABG to ARRT, days | 1 (1, 3) | 1 (1, 2) | 0.87 |
| CRRT at initiationa | 7 (50.0) | 10 (55.6) | 0.76 |
Categorical variables are shown as numbers (percentages) and compared using Pearson's χ2 test. Continuous variables are shown as medians (IQR) and compared via the Mann-Whitney U test.
a
ARRT modality at dialysis initiation was available in 32 survivors.