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A population-based study to evaluate the effectiveness of multidisciplinary heart failure clinics and identify

Harindra C Wijeysundera1, Gina Trubiani, Xuesong Wang

  • 1Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, Ontario, Canada. wijeysundera@gmail.com

Circulation. Heart Failure
|December 12, 2012
PubMed

Insights

Multidisciplinary heart failure (HF) clinics reduce mortality but increase readmissions in real-world settings. Key features like frequent visits and intensive medication management improve outcomes for HF patients.

Area of Science:

  • Cardiology
  • Public Health
  • Health Services Research

Background:

  • Multidisciplinary heart failure (HF) clinics demonstrate efficacy in clinical trials.
  • Real-world effectiveness of HF clinics compared to usual care requires further investigation.
  • Identifying specific HF clinic features linked to improved patient outcomes is crucial.

Purpose of the Study:

  • To compare real-world outcomes of patients with heart failure (HF) treated in specialized HF clinics versus usual therapy.
  • To identify specific features of HF clinics that are associated with improved patient outcomes.
  • To evaluate the impact of HF clinic intensity and service components on mortality and readmission rates.

Main Methods:

  • A population-based study in Ontario, Canada, comparing 1288 patients in HF clinics with 14,468 control patients using propensity-score matching.
  • Quantified HF clinic service components (intensity, medication management, visit frequency) using a validated instrument.
  • Utilized Cox-proportional hazard models to assess outcomes (mortality, all-cause readmission, HF readmission) and clinic-level characteristics over 4 years.

Main Results:

  • HF clinics were associated with a statistically significant decrease in mortality (52.1% vs. 54.7%, P=0.02) but an increase in readmissions (all-cause: 87.4% vs. 86.6%, P=0.009; HF-related: 58.7% vs. 47.3%, P<0.001).
  • No significant differences in outcomes were observed between high, medium, or low intensity HF clinics.
  • Higher visit frequency (>4 contacts/6 months) and more intensive medication management were independently associated with significantly lower mortality and readmission rates.

Conclusions:

  • Multidisciplinary HF clinics are associated with reduced mortality in a real-world setting, despite an increase in readmissions.
  • Specific HF clinic characteristics, particularly frequent patient contact and intensive medication management, are key drivers of improved outcomes.
  • Optimizing HF clinic models to enhance patient engagement and medication adherence may mitigate readmission risks and further improve survival.
Abstract

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