Association of persistent and transient worsening renal function with mortality risk, readmissions risk, length of stay, and costs in patients hospitalized with acute heart failure.

Disclosure JBP and KWJ are employees of Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA. HSF and PN are paid consultants for Novartis Pharmaceuticals Corporation. SSG received grant support from Novartis and has served as a consultant for Novartis, BMS, and Gambro. The authors report no other conflicts of interest in this work. Author contributions JBP, KWJ, and SSG contributed to the study design and interpretation of the data. HSF and PN contributed to data analysis and interpretation of the data. All authors participated in critically reviewing the manuscript for intellectual content, approved the final version for submission, and agreed to be accountable for all aspects of the work.