Related Experiment Video
Updated: Sep 7, 2025

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
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.
Background:
It is unclear whether patients with a history of gout have longer hospitalizations in general, or only when suffering a flare. This study examines the effect of gout diagnosis and gout flare on the length of stay (LoS) in patients admitted for heart failure (HF) exacerbation.
Methods:
We conducted a matched retrospective cohort study and searched electronic medical records for patients admitted for HF with a prior diagnosis of gout from 1 July 2012 to 30 June 2017 and matched them to patients admitted for HF without gout. Cases who had a gout flare during the admission were identified. The log of the length of stay (log LoS) was utilized for normalization of the data. We used a linear mixed-effect model to compare the adjusted LoS of gout patient with flare, gout patient without flare, and controls.
Results:
A total of 978 admissions for HF exacerbation in 738 patients, including 246 individual with gout and 492 matched controls, were identified and included in the analysis. The log LoS was significantly longer in cases (1.86 ± 0.95) compared with controls (1.72 ± 0.94; p = 0.0278). The log LoS was significantly longer in those with gout who flared (2.41 ± 0.96) compared to those without gout (1.72 ± 0.94, p < 0.0001). After adjusting for potential confounders, the log LoS of patients who flared (p < 0.0001) remained significantly longer than controls, as well as those who did not flare (p = 0.042), but to a lesser extent.
Conclusion:
HF patients with gout had significantly longer hospitalizations than those without gout, a finding driven primarily by gout flare during hospitalization.
More Related Videos
Related Concept Videos
Heart Failure VI: Adjunct Therapies
Heart Failure V: Medical Management
Heart Failure VII: Nursing Interventions
Mitral Regurgitation IV: Nursing Management
Heart Failure Drugs: Diuretics
Heart Failure III: Clinical Manifestations

