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Heart rate recovery after exercise and long-term prognosis in patients with coronary artery disease

Mathieu Gayda1, Martial G Bourassa, Jean-Claude Tardif

  • 1Montreal Heart Institute Cardiovascular and Prevention Centre (Centre ÉPIC), Montreal, Québec, Canada.

The Canadian Journal of Cardiology
|February 17, 2012
PubMed

Insights

Heart rate recovery (HRR) after exercise predicts long-term survival in stable coronary artery disease (CAD) patients. Lower HRR indicates higher mortality risk, making it a valuable prognostic tool.

Area of Science:

  • Cardiology
  • Clinical Outcomes Research
  • Preventive Cardiology

Background:

  • The prognostic significance of heart rate recovery (HRR) in coronary artery disease (CAD) patients requires further elucidation.
  • Previous studies have provided limited long-term data on HRR's predictive value in this population.

Purpose of the Study:

  • To confirm the prognostic value of HRR in a large cohort of patients with stable CAD.
  • To investigate the association between HRR and long-term mortality outcomes.

Main Methods:

  • Utilized data from 4097 patients with CAD from the Coronary Artery Surgery Study registry.
  • Measured HRR at 3 minutes post-exercise during passive recovery.
  • Analyzed clinical outcomes using threshold and continuous models based on HRR.

Main Results:

  • A heart rate recovery (HRR) below 46 beats per minute (Bpm) was associated with increased all-cause death risk.
  • Each 10 Bpm increase in HRR correlated with a reduced risk of all-cause and cardiovascular mortality.
  • Long-term follow-up averaged 14.7 years.

Conclusions:

  • Three-minute HRR independently predicts long-term all-cause and cardiovascular mortality in stable CAD.
  • HRR measurement serves as a complementary tool for identifying high-risk patients.
Abstract

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