Medical Terms Explained


An abnormal heart rhythm


Matters of the heart

Cardiac Arrest

No pulse, death imminent


A public access defibrillator is an easy to use machine, seen frequently in public places, which provides an electric shock to the heart during cardiac arrest. The machine talks to you to tell you what to do. If a shock is delivered within 8 minutes of cardiac arrest, there is a higher chance of survival.


An ECG is a recording of the electrical working of the heart, which takes a couple of minutes to do, and involves sticking 12 leads on the chest and wrists and ankles. The ECG is abnormal in 80% of people with a disease which may cause SADS. The machines are common in hospitals and GP surgeries.


Inherited conditions, ie. run in families in blood relatives

Ischaemic Heart Disease

Narrowing of the arteries, common in older people, and caused by high blood pressure, smoking, high cholesterol. Other words for this are 'atherosclerosis' or 'arteriosclerosis'.

Classification of Causes in Medical Terms

  • Structural Heart Disease (SCD)
  • Cardiomyopathies (HCM, DCM, RCM, ARVC)
  • Myocarditis
  • Congential heart disease (abnormal valves, chambers or anomalous coronary arteries, from birth)
  • Marfan's Conduction Diseases
  • WPW
  • Re-entrant pathways Ion channelopathies (SADS)
  • Long/short QT syndrome (natural or iatrogenic)
  • Brugada
  • CPVT (Catecholaminergic Polymorphic Ventricular Tachycardia)

Partners & Supporters

  • Gem 106
    Bradgate Park Trust
  • Jessica Michelle School of Dance
    Musical Village
    AFC Andrews
  • Samworth Brothers
    Pukaar News
    UK Paintball
  • UHL Trust
    Health For Teens
    East Midlands Ambulance Service
    Arrhythmia Alliance
  • Rothley Park Cricket Club
    British Heart Foundation
    Loughborough Town Cricket Club
  • Willmott Dixon
    Longslade Community College
    Soar Media
  • Jersey Budd
    Loughborough Echo
    Leicestershire and Rutland County FA
  • Leicester City Council
    St John's Ambulance
    Sileby Town CC
  • Warriors Basketball Club
    De Montfort Students Union
    Shepshed Lions Club - Community First Responders
    Shepshed Lions - Community First Responders
  • ITV Central
    Rothley Parish Council
    Demon Media
  • Cipher Entertainment
    Oak FM
    Quorn Football Club
    CKI Martial Arts
  • BBC Radio Leicester
    De Lisle
    Leicester Tigers
  • Dickinson & Morris
    Leicestershire County Council
    Leicester Legends
    David Wilson Homes
  • BBC
    Leicester Mercury
    Leicester City FC Community Trust
  • Sports Cardiology UK
    Westleigh Developments
    Trophy Parlour
    Inside Land
  • Leicester Unity Boxing Club
    Leicester Coritanian