title: Predictors of worsening renal function in adult patients with congestive heart failure receiving recombinant human B-type brain natriuretic peptide (nesiritide).
abstract: 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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Nephrology, UMDNJ School of Osteopathic Medicine, Stratford and Robert Wood Johnson School of Medicine, New Brunswick, NJ, USA. jiglesias@verizon.net
authors.forename: Jose
authors.initials: J
authors.lastname: Iglesias
authors.forename: Deborah
authors.initials: D
authors.lastname: Hom
authors.forename: Maria
authors.initials: M
authors.lastname: Antoniotti
authors.forename: Sammy
authors.initials: S
authors.lastname: Ayoub
authors.forename: Jerrold S
authors.initials: JS
authors.lastname: Levine
mesh_terms: D058186:Acute Kidney Injury / Q000139:chemically induced*; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006333:Heart Failure / Q000188:drug therapy* / Q000503:physiopathology*; D006801:Humans; D008297:Male; D045283:Natriuretic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D020097:Natriuretic Peptide, Brain / Q000009:adverse effects* / Q000627:therapeutic use; D012307:Risk Factors
chemical_list: D045283:Natriuretic Agents; D020097:Natriuretic Peptide, Brain