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Year : 2014  |  Volume : 15  |  Issue : 2  |  Page : 33-36

The efficacy of hydration with normal saline versus hydration with sodium bicarbonate in the prevention of contrast-induced nephropathy

Department of Madani Heart Centre, Tabriz University of Medical Science, Tabriz, Iran

Correspondence Address:
Farzad Ilkhchooyi
Cardiovascular Research Centre, Tabriz University of Medical Science, Tabriz
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1995-705X.137489

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Background: Contrast-induced acute kidney injury [contrast-induced nephropathy (CIN)] is one of the major causes of hospital-acquired acute renal failure. Volume supplementation is the most effective strategy to prevent acute renal failure caused by contrast; but the effects of sodium bicarbonate regimens are unknown in CIN prevention. The aim of this survey is to compare the efficacy of hydration with normal saline versus hydration with sodium bicarbonate in the prevention of the CIN in patients undergoing coronary angiography. Materials and Methods: In a clinical trial, 350 patients undergoing coronary interventions were randomized into two groups: One group received normal saline and another group received sodium bicarbonate before and after infusion of the contrast. Patients in both the groups had received N-acetylcysteine. CIN was defined as relative increase in serum creatinine equal to or more than 25% of baseline or increase to 0.5 mg/dl in 48 h after the injection of the contrast. Results: CIN was seen in 46 patients (13.1%) after coronary interventions. Incidence of CIN in patients receiving normal saline (19.4%) was more than in patients receiving sodium bicarbonate (6.9%) (P = 0.001). Hemodialysis was needed only in one patient who received saline normal. Relative risk to induce CIN in both groups was as 2.8 and was in the range of 1.50-5.25 with confidence interval of 95% and P = 0.001. Thus, the probability of CIN was significantly more in the usage of normal saline. Conclusion: This survey showed that hydration with sodium bicarbonate is superior to hydration with normal saline and has better protection effects.

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