Impact of benazepril on contrast-induced acute kidney injury for patients with mild to moderate renal insufficiency undergoing percutaneous coronary intervention
- Author:
- No author available
- Journal Title:
- CHINESE MEDICAL JOURNAL
- Issue:
- 14
- DOI:
- 10.3760/cma.j.issn.0366-6999.2011.14.004
- Key Word:
- angiotensin-converting enzyme inhibitors;contrast-induced acute kidney injury;percutaneous coronary intervention
Abstract： Background The role of angiotensin-converting enzyme inhibitors (ACEI) in contrast-induced acute kidney injury (CI-AKI) is controversial. Some studies pointed out that it was effective in the prevention of CI-AKI, while some concluded that it was one risk for CI-AKI, especially for patients with pre-existing renal impairment. The purpose of this study was to assess the influence of benazepril administration on the development of CI-AKI in patients with mild to moderate renal insufficiency undergoing coronary intervention.Methods One hundred and fourteen patients with mild to moderate impairment of renal function were enrolled before coronary angioplasty, who were randomly assigned to benazepril group (n=52) and control group (n=62). In the benazepril group, the patients received benazepril tablets 10 mg per day at least for 3 days before procedure. CI-AKI was defined as an increase of≥25％ in creatinine over the baseline value or increase of 0.5 mg/L within 72 hours of angioplasty.Results Patients were well matched with no significant differences at baseline in all measured parameters between two groups. The incidence of CI-AKI was lower by 64％ in the benazepril group compared with control group but without statistical significance (3.45％ vs. 9.68％, P=0.506). Compared with benazepril group, estimated glomerular filtration rate (eGFR) level significantly decreased from (70.64+16.38) ml·min-1·1.73 m-2 to (67.30+11.99) ml·min-1·1.73 m-2 in control group (P=0.038). There was no significant difference for the post-procedure decreased eGFR from baseline (△eGFR)between two groups (benazepril group (0.67+12.67) ml·min-1·1.73 m-2 vs. control group (-3.33±12.39) ml·min-1·1.73 m-2,P=0.092). In diabetic subgroup analysis, △eGFR in benazepril group was slightly lower than that in the control group, but the difference was not statistically significant.Conclusions Benazepril has a protective effect on mild to moderate impairment of renal function during coronary angioplasty. It is safe to use benazepril for treatment of patients with mild to moderate impairment of renal function before coronary intervention.
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