Radiographic Contrast Agent Nephropathy
Conditions
Keywords
contrast, nephropathy, bicarbonate, prevention
Brief summary
Contrast induced nephropathy is a rising cause of acute renal failure in all patients. A study published in JAMA 2004, show a superiority of a hydratation with sodium bicarbonate in comparison with the same volume hydratation with sodium bicarbonate. The investigators will try following the original protocol making 2 randomized groups of patients, with cancer diagnosis, \>18 years old, with a GFR \<60 and \>30 ml/min/1,73m2 by MDRD formula and/or diabetic patients. In the group 1 the patients will receive a solution with 154 mEq/L of a sodium bicarbonate, 3 cc/Kg/h at 1 hour before the injection of contrast and 1 cc/Kg/h during and 6 hours before the injection. The primary end point will be the rise of 25% or more in creatinine or dialysis needed.
Interventions
IV 154 mEq/L sodium bicarbonate. Infusion of 3 cc/Kg/h 1 hour before the injection of contrast and 1 cc/Kg/h after the injection.
IV 154 mEq/L solution of NaCl 0.9%. Infusion of 3 cc/Kg/h 1 hour before the injection of contrast and 1 cc/Kg/h after the injection.
Sponsors
Study design
Eligibility
Inclusion criteria
* \> 18 years old * cancer diagnosis * GFR \< 60 and \> 30 ml/min/1,73m2 by MDRD formula or diabetic * CT with contrast
Exclusion criteria
* dialysis needed * uncontrolled hypertension * changes in serum creatinine levels of at least 0.5 mg/dl during the previous 24 hours of procedure * recent exposure to radiographic contrast agents (within previous two days of the study) * administration of dopamine, mannitol , fenoldopam or N-Acetyl Cystein during the intended time of study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Development of contrast-induced nephropathy, defined as an increase in serum creatinine of 25% or more within 2 day after administration of contrast or dialysis needed | 2 days |
Secondary
| Measure | Time frame |
|---|---|
| change in serum bicarbonate change in serum potassium change in serum glucose change in serum creatinine change in estimated glomerular filtration rate incidence of contrast induced nephropathy comparison of cholesterol level | 2 days |
Countries
Brazil