Structured telephone support programs in chronic heart failure may be affected by a learning curve.

Area of Science:

• Cardiology
• Health Services Research

Background:

• The effectiveness of telephone support for chronic heart failure (CHF) is debated, especially for short-term outcomes.
• Assessing long-term impacts and potential learning effects is crucial for optimizing CHF management.

Purpose of the Study:

• To evaluate the 18-month efficacy of the HeartNetCare telephone support program for chronic heart failure.
• To investigate if a 'learning-to-care' curve influences patient outcomes within the program.

Main Methods:

• A retrospective cohort study comparing 269 CHF patients in the HeartNetCare program with 200 controls receiving usual care.
• Primary endpoint: all-cause death, CHF hospitalization, or left ventricular assist device implantation. Secondary endpoints: changes in ejection fraction and NYHA class.
• Analysis included patient enrollment time relative to program initiation.

Main Results:

• No significant difference in the primary composite endpoint between groups at 18 months (21.9% vs. 24.5%).
• HeartNetCare patients showed significant improvements in ejection fraction and NYHA functional class compared to controls (P < 0.001).
• Patients enrolled after 12 months in the HeartNetCare program experienced a more favorable primary outcome than controls.

Conclusions:

• Structured telephone support programs can positively impact symptoms and reduce adverse events in chronic heart failure long-term.
• The benefits of such programs become more pronounced after an initial period, likely due to a learning-to-care curve.