Laboratory data and hospitalisation course of the study population
| All patients n=326 | Angiography (−) n=226 | Angiography (+) n=100 | p Value | |
|---|---|---|---|---|
| Hb (g/dL) | ||||
| Initial Hb | 11.9±2.4 | 12.0±2.4 | 11.7±2.4 | 0.12 |
| 24-hour Hb | 11.6±2.1 | 10.8±2.3 | 10.1±1.6 | 0.002 |
| SCr (mg/dL) | ||||
| Initial SCr | 1.03±0.33 | 1.03±0.32 | 1.05±0.39 | 0.63 |
| 48-hour SCr | 0.94±0.47 | 0.94±0.42 | 0.95±0.58 | 0.28 |
| Discharge SCr | 0.84±0.56 | 0.85±0.52 | 0.83±0.60 | 0.08 |
| eGFR (mL/min/1.73 m2) | ||||
| Initial eGFR | 84.8±28.0 | 85.2±27.9 | 83.7±28.6 | 0.84 |
| 48-hour eGFR | 99.9±36.2 | 99.0±35.2 | 102.1±38.9 | 0.28 |
| Discharge eGFR | 113.8±3.9 | 111.9±38.2 | 118.1±41.4 | 0.12 |
| Blood transfusion (units) | ||||
| At ED | 1.8±2.9 | 1.6±3.0 | 2.3±2.5 | <0.001 |
| During hospitalisation | 4.7±8.6 | 4.7±9.1 | 4.7±7.3 | 0.40 |
| Outcome | ||||
| CIN,* n (%) | 33 (10.1) | 21 (9.2) | 12 (12.0) | 0.46 |
| CIN,§ n (%) | 31 (9.5) | 20 (8.8) | 11 (11.0) | 0.55 |
| CIN,† n (%) | 34 (10.4) | 21 (9.2) | 13 (13.0) | 0.31 |
| Course in hospital | ||||
| Hospital stay (days) | 15.2±11.2 | 14.0±10.0 | 18.2±13.2 | 0.002 |
| ICU stay (days) | 5.1±5.6 | 4.7±5.2 | 6.0±6.5 | 0.002 |
| Mortality, n (%) | 20 (6.1) | 15 (6.6) | 5 (5.0) | 0.56 |
The p value indicates angiography (−) vs angiography (+).
Data are presented as mean±SD or number (%).
Angiography (−): patients receiving enhancement CT alone.
Angiography (+): patients undergoing serial enhancement CT and angiography.
*CIN: based on Barrett and Parfrey criteria.
§CIN: based on AKIN criteria.
†CIN: based on RIFLE criteria.
AKIN, Acute Kidney Injury Network; CIN, contrast-induced nephropathy; ED, emergency department; eGFR, estimated glomerular filtration rate; Hb, haemoglobin; ICU, intensive care unit; RIFLE, Risk of renal dysfunction, Injury to the kidney, Failure of kidney function, Loss of kidney function and End-stage renal disease classification; SCr, serum creatinine.