Harley Street Health Episode 3: Heart attacks and heart failure – what’s the difference?

Avoid heart attack
Medically reviewed by Dr Michael Ross MacDonaldSpeak with Dr Michael Ross MacDonaldSenior Consultant Cardiologist · The Harley Street Heart & Vascular CentreDr MacDonald’s clinical interests include heart failure, preventive cardiology and cardiac imaging. Arrange an assessment to discuss your symptoms and options.Request a consultationView Dr MacDonald’s profile · Last reviewed August 2026

All the different terms for heart disease can be really confusing…..heart attacks, heart failure, coronary artery disease…. In this podcast episode, Cardiologist Dr Michael MacDonald discusses the differences. The primary process that leads to a lot of heart disease is called atherosclerosis. Lipid rich plaques form in the walls of the coronary arteries. When these plaques get inflamed, they can rupture, and a clot can form in the coronary artery, stopping blood flow to the heart muscle. This is called a heart attack (or myocardial infarction). This process can cause sudden death and damage to the heart muscle.

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Emergency: call 995. Seek emergency care immediately for chest pain, fainting, or sudden severe breathlessness. In Singapore, dial 995 for an ambulance.

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Medically reviewed by Dr Michael Ross MacDonald, Senior Consultant Cardiologist, The Harley Street Heart & Vascular Centre. This article is for general education and is not a substitute for medical advice.