Gout increases length of stay in patients hospitalized for heart failure exacerbation

Daniel DeMizio1, Guojing Wu2, Ying Wei2

  • 1Division of Rheumatology, Columbia University Irving Medical Center, 630 West 168th Street, Suite 3-450, New York, NY 10032, USA.

Insights

Patients with gout history admitted for heart failure exacerbation experienced longer hospital stays. A gout flare during hospitalization significantly increased the length of stay compared to those without gout.

Area of Science:

  • Cardiology
  • Rheumatology
  • Health Services Research

Background:

  • Gout is a common comorbidity that may impact hospital outcomes.
  • The effect of gout on length of stay (LoS) for heart failure (HF) exacerbations is not well understood.
  • This study investigates if gout diagnosis or a gout flare during hospitalization prolongs LoS in HF patients.

Purpose of the Study:

  • To determine the impact of gout on hospital LoS in patients admitted for heart failure exacerbation.
  • To differentiate the effect of a gout diagnosis versus an active gout flare on LoS.
  • To provide data for optimizing care pathways for HF patients with gout.

Main Methods:

  • A matched retrospective cohort study design was employed.
  • Electronic medical records of HF patients admitted between July 2012 and June 2017 were analyzed.
  • Patients with gout were matched to controls without gout, and those experiencing a gout flare were specifically identified. Linear mixed-effect models were used to compare log-transformed LoS.

Main Results:

  • A total of 978 admissions (738 patients) were analyzed, including 246 with gout and 492 controls.
  • Patients with gout had a significantly longer log LoS (1.86 ± 0.95) compared to controls (1.72 ± 0.94; p=0.0278).
  • Gout flares during admission were associated with a substantially longer log LoS (2.41 ± 0.96) compared to non-gout patients (p<0.0001), and also longer than gout patients without flares (p=0.042).

Conclusions:

  • Heart failure patients with a history of gout experience significantly longer hospitalizations.
  • The primary driver for increased LoS in gout patients admitted for HF exacerbation is the occurrence of a gout flare during the hospital stay.
  • These findings highlight the importance of managing gout flares in hospitalized HF patients to potentially reduce length of stay.
Abstract

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