Sleep apnoea, an illness that causes breathing problems while sleeping, may increase the chances of sudden heart problems. But the overall risk of dying from sudden heart problems is still low.
What do we know already?
Sleep apnoea is when a person stops breathing for 10 seconds or longer, at least five times an hour, while asleep. It’s thought that 1 or 2 in every 100 men aged over 35 in the UK have this condition. Symptoms can include loud snoring, choking, or gasping during sleep, and feeling sleepy during the day, because your sleep has been disturbed.
As well as these symptoms, some studies have shown that sleep apnoea may increase the chances of heart problems. In this new study researchers wanted to see if there was a link between sleep apnoea and sudden death from heart problems, called ‘ sudden cardiac death’. Doctors describe this as an unexpected natural death from heart problems, usually within an hour of a person having symptoms, and which happens to someone without any known heart problems.
The researchers looked at more than 10,000 people who all had a test, called a polysomnogram, to diagnose sleep apnoea between 1987 and 2003. Over an average of five years the researchers recorded how many people in the study died of sudden heart problems.
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