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Chronic angina treatment should shift focus from oxygen supply to cardiac metabolism. Shifting metabolism towards glucose offers a promising approach for symptom relief and improved prognosis in patients with stable angina.

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Area of Science:

  • Cardiology
  • Metabolic Disorders
  • Ischaemic Heart Disease

Background:

  • Traditional treatment for chronic angina focuses on haemodynamics, aiming to balance oxygen supply and demand.
  • Despite interventions like percutaneous coronary intervention and medical therapy, many patients experience persistent angina.
  • Clinical trials have often failed to demonstrate significant improvements in survival, symptoms, or quality of life with conventional approaches.

Purpose of the Study:

  • To highlight the limitations of the haemodynamic approach in chronic angina management.
  • To propose a shift in understanding ischaemic heart disease as a metabolic disorder.
  • To explore the potential of modulating cardiac metabolism as a therapeutic strategy.

Main Methods:

  • Review of clinical trial data on chronic stable angina therapies and revascularisation.
  • Analysis of the metabolic underpinnings of ischaemic heart disease.
  • Evaluation of shifting cardiac metabolism from free fatty acids to glucose as a treatment approach.

Main Results:

  • A significant portion of patients with chronic angina remain symptomatic despite optimal conventional treatment.
  • Conventional therapies have not consistently improved survival, cardiovascular outcomes, or symptom relief.
  • Understanding ischaemic heart disease as a metabolic and energetic disorder offers new therapeutic avenues.

Conclusions:

  • The traditional haemodynamic approach to chronic angina is insufficient for many patients.
  • Modulating cardiac metabolism, specifically shifting towards glucose utilization, presents a promising therapeutic strategy.
  • This metabolic approach may improve outcomes for patients with stable angina, irrespective of macrovascular or microvascular disease.