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A study shows that a five-minute neck badysis could predict dementia a decade before the onset of symptoms.
Measuring someone's pulse from his or her neck can predict brain damage that causes memory and thinking problems in the elderly.
A UK study of over 3,000 people found that people with the most intense pulse in this region were about 50% more likely to experience rapid cognitive decline over the next 10 years.
If the result is repeated in a larger study involving more people, the neck scanner could become a routine test that doctors give to people of average age at risk for dementia.
The badysis is so telling that the pulse of someone – the pulsations of the arteries when the heart pumps blood – is "cushioned" by healthy, elastic blood vessels that prevent it from becoming too powerful. In the elderly and hypertensives, the blood vessels become stiffer and the pulse becomes too strong.
A powerful pulse can penetrate deep into the fragile blood vessels that feed the brain, causing thought problems and potential minor bleeding called "minrokes". Researchers at University College London measured the pulse of 3191 people 61 years old on average using one of the large carotid arteries that feed the blood to the head and neck.
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This was done in minutes with an ultrasound that records the sound waves that bounce off the blood vessels. Over the next 15 years, participants were monitored to keep an eye on their memory and problem-solving skills.
At the beginning of the study, one-quarter of those with the most initial impulse were approximately 50% more likely to have accelerated cognitive decline. This meant being part of the 15% of people with the fastest decline in thinking skills.
Cognitive decline is a noticeable reduction in memory, language, thinking and judgment and is often one of the first signs of dementia, although it does not always lead to illness.
Dr. Scott Chiesa, of University College London, said the findings presented at the American Heart Association's Scientific Sessions Conference in Chicago showed "an easily identifiable and potentially treatable cause of cognitive decline in middle-aged adults, who can be spotted long in advance ". .
Prof. Metin Avkiran, of the British Heart Foundation, who co-funded the research, said, "We now need more research, for example, to understand if lifestyle changes and medications that reduce blood pressure are going to decrease. Pulse wave intensity also retard cognitive decline.
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