title: Comparison of usefulness of sodium bicarbonate versus sodium chloride to prevent contrast-induced nephropathy in patients undergoing an emergent coronary procedure.
abstract: In the case of an emergency coronary procedure where the risk of contrast-induced nephropathy is especially high, there are few reliable methods to attenuate renal injury. We examined the efficacy of sodium bicarbonate for the prevention of contrast-induced nephropathy in patients undergoing an emergency coronary procedure. We enrolled 59 patients who were scheduled to undergo an emergency coronary angiography or intervention. These patients were randomized to receive a 154-mEq/L infusion of sodium bicarbonate (n = 30) or sodium chloride (n = 29), as a bolus of 3 ml/kg/hour for 1 hour before the administration of contrast, followed by an infusion of 1 ml/kg/hour for 6 hours during and after the procedure. In the sodium bicarbonate group, serum creatinine concentration remained unchanged within 2 days of contrast administration (1.31 +/- 0.52 to 1.31 +/- 0.59 mg/dl), whereas it increased in the sodium chloride group (1.32 +/- 0.65 to 1.52 +/- 0.92 mg/dl, p = 0.01). The incidence of contrast-induced nephropathy (an increase >0.5 mg/dl or >25% in serum creatinine concentration within 2 days of contrast) was significantly lower in the sodium bicarbonate group than in the sodium chloride group (7% vs 35%, p = 0.01, risk ratio 0.19, 95% confidence interval 0.046 to 0.80). In conclusion, hydration with sodium bicarbonate is more effective than with sodium chloride for the prevention of contrast-induced nephropathy in patients undergoing an emergency coronary procedure.
authors: Division of Cardiology, Osaka General Medical Center, Osaka, Japan. furitumasuda@yahoo.co.jp
authors: Masaharu
authors: M
authors: Masuda
authors: Takahisa
authors: T
authors: Yamada
authors: Takanao
authors: T
authors: Mine
authors: Takashi
authors: T
authors: Morita
authors: Shunsuke
authors: S
authors: Tamaki
authors: Yasumasa
authors: Y
authors: Tsukamoto
authors: Keiji
authors: K
authors: Okuda
authors: Yuusuke
authors: Y
authors: Iwasaki
authors: Masatsugo
authors: M
authors: Hori
authors: Masatake
authors: M
authors: Fukunami
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D003287:Contrast Media / Q000009:adverse effects*; D017023:Coronary Angiography; D003404:Creatinine / Q000097:blood; D005260:Female; D005440:Fluid Therapy; D005500:Follow-Up Studies; D005919:Glomerular Filtration Rate / Q000187:drug effects; D006801:Humans; D007479:Iopamidol / Q000009:adverse effects; D007674:Kidney Diseases / Q000139:chemically induced / Q000517:prevention & control*; D008297:Male; D012307:Risk Factors; D017693:Sodium Bicarbonate / Q000008:administration & dosage / Q000627:therapeutic use*; D012965:Sodium Chloride / Q000008:administration & dosage / Q000627:therapeutic use*; D013318:Stroke Volume / Q000187:drug effects; D013997:Time Factors
chemical_list: D003287:Contrast Media; D012965:Sodium Chloride; D017693:Sodium Bicarbonate; D003404:Creatinine; D007479:Iopamidol