Potential aetiologies and prognostic implications of worsening renal function in acute decompensated heart failure

Elsayed Abo-Salem, Khalid Sherif, Stephanie Dunlap, Sharma Prabhakar

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Background: One third of patients hospitalized for acute decompensated heart failure (ADHF) develop a worsening renal function (WRF) that is associated with increased in-hospital morbidity and mortality. However, previous investigations have not evaluated the various etiologies of WRF and its impact on prognosis. Methods: A retrospective chart review was performed of patients admitted with ADHF who had a rise of serum creatinine ≥ 0.3 mg/dl on admission or during their hospital stay. The chart notes were reviewed for the suggested etiology of WRF. Cases were defi ned as ADHF associated WRF (ADHF-WRF) when there was no other explanation for WRF, plus an objective evidence of hypervolemia. Cases with WRF after 48 hours of a negative fluid balance were classified as diuresis-associated WRF (DA-WRF. Results: ICD-9 codes identified 319 admissions with ADHF complicated with WRF. Fifty admissions were excluded. The most common causes of WRF were ADHF-WRF (43.1%) and DA-WRF (42.8%). Other causes included nephrotoxins (5.9%) and surgery (3.7%). The mortality rate was significantly lower with DA-WRF compared to ADHF-WRF; odds ratio 0.059 (95% CI 0.007 to 0.45, P = 0.006). Readmission at 30 days was higher in cases with ADHF-WRF (42%). Conclusions: WRF with ADHF is a heterogeneous group, and cases with ADHF-WRF had a higher in-hospital mortality and readmission rates.

Original languageEnglish (US)
Pages (from-to)657-663
Number of pages7
JournalActa Cardiologica
Volume69
Issue number6
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

Keywords

  • Acute heart failure
  • Acute kidney injury
  • Cardio-renal syndrome
  • Worsening renal function

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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