Table 3.
Characteristics of acute renal failure in patients admitted for COVID-19.
| Total | AKF at admission | AKF during Hospital admission | P | |
|---|---|---|---|---|
| n | 41 | 2,3 | 18 | |
| Etiology,% | ,02 | |||
| Prerenal | 61,0 | 73,9 | 44,4 | |
| ATN sepsis | 24,4 | 8,8 | 44,4 | |
| Glomerular | 7,3 | 13 | 0 | |
| Tubular toxicity | 7,3 | 4,3 | 11,2 | |
| Urine strip,% | ||||
| Proteinuria | 88,9 | 94,7 | 82,4 | ,5 |
| Hematuria | 79,4 | 70 | 92,9 | ,1 |
| AKIN,% | ,6 | |||
| Grade 1 | 12,2 | 13 | 11,1 | |
| Grade 2 | 7,3 | 13 | 0 | |
| Grade 3 | 80,5 | 74 | 88,9 | |
| Biochemical data, median [IQR] | ||||
| Initial Cr (mg/dl) | 1,73 [1–3,1] | 2,34 [1,4–3,7] | 1,11 [0.8–1.36] | ,00 |
| Maximum Cr (mg/dl) | 3,62 [2,33–5,5] | 3,27 [2,33–5,21] | 3,79 [2.24–5.55] | ,9 |
| Initial urea (mg/dl) | 77 [45–153] | 124 [72–188] | 60 [40–72] | ,00 |
| Maximum urea (mg/dl) | 199 [122–279] | 161 [111–264] | 203 [122–289] | ,5 |
| RRT,% | 48,8 | 34,8 | 66,7 | ,04 |
| Conventional HD | 19,5 | 21,7 | 16,7 | |
| CVVHDF | 29,3 | 13 | 50 |
AKIN: Acute Kidney Injury Network; Cr: creatinine; SD: standard deviation; AKF: acute kidney failure; HD: hemodialysis; HDFVVC: continuous veno-venous hemodiafiltration; ATN: acute tubular necrosis; IQR: interquartile range; RRT: renal replacement therapy.
In bold, statistically significant differences.