Characteristics | Patients Who Developed CIN | ||||
---|---|---|---|---|---|
Patient 1 | Patient 2 | Patient 3 | Patient 4 | Patient 5 | |
Age, y | 75 | 95 | 72 | 34 | 85 |
Gender | Female | Male | Female | Male | Female |
Stroke type | Ischemic | Ischemic | Hemorrhagic | Hemorrhagic | Ischemic |
Risk factors for CIN | |||||
Known history of renal impairment | Yes* | Yes† | No | No | No |
Diabetes | Yes | No | No | No | Yes |
Type of contrast scan and number of scans within 24 hours | 1 CTA+CTP | 1 CTA+CTP | 1 CTA | 1 CTA | 1 CTA+CTP |
Creatinine level known at time of contrast CT? | Yes | Yes | Yes | Yes | No |
GFR day 0, mL/min | 46 | 42 | 66 | 166 | 64 |
GFR nadir, mL/min | 32 | 29 | 52 | 132 | 43 |
Creatinine levels, μmol/L | |||||
Day 0 | 132 | 102 | 54 | 66 | 92 |
Day 1 | 167 | 95 | 53 | 80 | 97 |
Day 2 | 189 | 85 | 60 | 81 | 133 |
Day 3 | 191 | 147 | 68 | 83 | 109 |
Type of contrast | Iso-osmolar | Low osmolar | Low osmolar | Low osmolar | Low osmolar |
Outcome | |||||
Chronic renal failure | No | No | No | No | No |
Dialysis | No | No | No | No | No |
Note:—CTA indicates CT angiography; CTP, CT perfusion; CIN, contrast-induced nephropathy; GFR, glomerular filtration rate.
* Diabetic nephropathy.
† Polycystic kidney disease.