NDT Advance Access originally published online on July 28, 2006
Nephrology Dialysis Transplantation 2006 21(12):3458-3465; doi:10.1093/ndt/gfl428
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Predictors of worsening renal function in adult patients with congestive heart failure receiving recombinant human B-type brain natriuretic peptide (nesiritide)
1Nephrology, UMDNJ School of Osteopathic Medicine, Stratford and Robert Wood Johnson School of Medicine, New Brunswick, 2Departments of Nursing, Pharmacy and Nephrology, Community Medical Center, Toms River, NJ and 3Nephrology, University of Illinois at Chicago School of Medicine, Chicago, Ill, USA
Correspondence and offprint requests to: Jose I. Iglesias, 11 Paulette lane, Howell, NJ 07731, USA. Email: jiglesias{at}verizon.net
Background. A recent meta-analysis suggested that the use of nesiritide (NES), a new agent for the treatment of congestive heart failure (CHF), is associated with an increased risk of acute renal failure (ARF).
Methods. We examined this issue among 219 consecutive CHF patients, and determined the risk factors for development of ARF [defined as a rise in serum creatinine (SCr) >0.3 mg/dl]. The sole primary outcome was the development of ARF.
Results. Seventy one of 219 patients received NES. There was no difference in ARF between patients receiving vs not receiving NES (29 vs 20%, P = 0.17). Evaluation of the entire cohort employing forward stepwise regression analysis revealed the following independent predictors of ARF: admission blood urea nitrogen (BUN) [P = 0.0004, odds ratio (OR) = 1.026], and admission brain natiuretic peptide (P = 0.04, OR = 1.0003). We repeated the same analysis for the subgroups of patients receiving or not receiving NES. For patients not receiving NES (n = 148), ARF developed in 30 (20%), with lower estimated glomerular filtration rate and older age being independent predictors. For patients receiving NES (n = 71), ARF developed in 21 (29%), with hypertension, elevated BUN/SCr ratio, and lack of use of angiotensin inhibitors being independent predictors.
Conclusion. Among all patients with CHF, the use of NES was not an independent risk factor for the development of ARF. However, risk factors for developing ARF differed among patients receiving vs not receiving NES. Comparison of these differing factors suggests that administering NES in the setting of diminished renal perfusion and/or altered renal autoregulation may confer an increased risk of ARF.
Keywords: acute renal failure; brain natriuretic peptide; congestive heart failure; nesiritide
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