Continuous Infusion of Iohexol to Monitor Perioperative Glomerular Filtration Rate
Table 1
Patient characteristics and perioperative data.
Patient 1
Patient 2
Patient 3
Patient 4
Baseline single-sample GFR (mL/min)
116
70
126
112
Baseline single-sample GFR (mL/min/1.73 m2)
97
59
105
100
Baseline eGFR creatinine† (mL/min/1.73 m2)
97
68
91
92
Baseline eGFR cystatin C‡ (mL/min/1.73 m2)
97
61
96
78
Baseline eGFR crea-cysC§ (mL/min/1.73 m2)
94
65
95
85
Sex (M/F)
F
M
M
M
Age (years)
60
81
66
63
Body mass index (kg/m2)
29
31
26
27
Weight preoperative (kg)
90
91
86
80
Weight gain (kg)
3.6
—
—
1.6
Height (cm)
176
172
183
173
ASA
2
3
2
2
Preexisting diabetes
No
No
No
No
Preexisting cardiovascular disease
No
Yes
No
No
Blood loss (mL)
100
150
100
80
Length of surgery (min)
270
255
350
205
Intraoperative fluids given (mL)
1300
1300
1100
1000
GFR: glomerular filtration rate; †eGFR creatinine: estimated GFR CKD-EPI creatinine (2009); ‡eGFR cystatin C: estimated GFR CKD-EPI cystatin C (2012); §eGFR crea-cysC: estimated GFR CKD-EPI creatinine-cystatin C (2012), ASA: American Society of Anesthesiologists classification.
