Summary AF is caused by faulty electrical signals in the heart and it raises the risk of heart disease.
Half of people with Atrial Fibrillation (AF), a condition characterised by irregular heartbeat, say that foods and drinks exacerbate their symptoms, and caffeine is among the most common.
AF is caused by faulty electrical signals in the heart and it raises the risk of stroke five-fold and heart disease three-fold. It’s therefore crucial that it is properly managed and treated - yet studies show there is an average delay of 2.6 years between symptoms starting and a person being diagnosed.
Diagnosed patients are treated with cardiac ablation - an operation to burn away the nerves causing the faulty signals that trigger irregular beats. They are also prescribed flecainide, a drug that regulates heart arrhythmias.
As many as 50 per cent of people with AF say caffeine exacerbate their symptoms, but surprisingly, there`s little evidence to back up this perceived link, said Jo Jerrome, deputy chief executive of the Atrial Fibrillation Association.
"We do see people who say that by stopping caffeine they`ve reduced their AF symptoms. But if you do strict trials of caffeine against non-caffeine it is difficult to show a difference in episodes," added Clifford Garratt, professor of cardiology at Manchester University and Manchester Royal Infirmary.
Dr Andrew Grace, consultant cardiologist at Papworth Hospital, Cambridge, thinks people feel their arrhythmia more in the presence of caffeine because it increases the contractile strength of the heart.
