Impact of optimal medical therapy and percutaneous coronary intervention on patients with stable angina

Azeem Latib1, Alaide Chieffo, Antonio Colombo

  • 1Interventional Cardiology Unit, San Raffaele Scientific Institute, Milan, Italy.

Insights

For chronic stable angina, percutaneous coronary intervention (PCI) offers no survival benefit over optimal medical therapy (OMT). PCI may improve symptoms in severe cases, but OMT alone is effective for mild symptoms.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Clinical Trials

Background:

  • Chronic stable angina (CSA) management often involves revascularization strategies.
  • The COURAGE trial investigated the role of percutaneous coronary intervention (PCI) versus optimal medical therapy (OMT) in CSA patients.

Purpose of the Study:

  • To evaluate the impact of PCI plus OMT versus OMT alone on clinical outcomes and quality of life in patients with CSA.
  • To identify patient subgroups who may benefit most from PCI.

Main Methods:

  • A substudy of the COURAGE trial involving patients with CSA, normal left ventricular function, and moderate coronary artery disease.
  • Comparison of outcomes between patients receiving PCI plus OMT and those receiving OMT alone.

Main Results:

  • Both PCI plus OMT and OMT alone significantly improved quality of life and angina symptoms.
  • PCI provided substantial benefit for patients with more severe and frequent angina.
  • No significant difference in the risk of death or myocardial infarction between the two groups.

Conclusions:

  • For patients with CSA and moderate coronary artery disease, OMT alone is as effective as PCI plus OMT in reducing mortality and myocardial infarction risk.
  • PCI may offer additional symptomatic relief for select patients with severe angina.
  • OMT alone is a sufficient and effective strategy for patients with mild angina or no significant ischemia.

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