Irregular heartbeat linked much higher risks of dementia death

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In the UK, atrial fibrillation—often called AF—has become a growing concern. It’s a condition where the heart beats in an irregular and often fast rhythm. This makes it harder for the heart to pump blood properly and increases the risk of serious health problems like strokes and heart attacks. Because so many people are affected, AF has been a major focus of medical research.

The good news is that treatments for AF have improved a lot over the last 20 years. A new study looked at the health records of more than 70,000 people who were diagnosed with AF between 2001 and 2017.

It found that deaths related to strokes and heart disease in people with AF have dropped by more than half during that time. This is a big achievement and shows that early diagnosis and better treatments are helping to save lives.

Doctors are now better at spotting AF early and treating it in ways that reduce the risk of dangerous complications. New medications, improved use of blood thinners to prevent strokes, and better follow-up care all play a role in this success.

But while these findings are hopeful, the same research also uncovered some worrying trends. One of the most concerning is that more people with AF are now dying from brain-related and mental health conditions, especially dementia.

This suggests there could be a link between AF and brain health, which needs more research. Doctors and scientists are beginning to explore whether irregular heartbeats might affect how well the brain gets oxygen-rich blood over time.

The study also found that people from poorer areas are more likely to die from AF-related problems than those from wealthier areas. This shows that not everyone is benefiting equally from medical progress.

People in lower-income communities may not get diagnosed as early, may not receive the same quality of care, or may have a harder time accessing treatment. These differences in health care need to be addressed to make sure all patients have the same chance at a healthy life.

Another growing challenge is that more people with AF are also dealing with other serious health issues at the same time, like diabetes, cancer, and kidney disease. These extra conditions can make AF harder to treat.

For example, medications for one condition might interfere with those used for another. Doctors now have to take a more complex, whole-body approach to treating patients with AF.

Where a person is diagnosed also seems to make a difference. People who find out they have AF while in hospital tend to have worse outcomes than those diagnosed by their local doctor in a clinic. This might be because hospital patients are often more seriously ill, or because they may not have had regular checkups earlier.

Even with these challenges, the drop in deaths from heart-related problems is a major step forward. It proves that early diagnosis and improved treatments can make a real difference. But going forward, doctors will need to do more than just treat the heart.

They’ll need to look at each patient as a whole person—taking into account other health problems, brain health, and the social factors that affect care.

The researchers behind this study, which was published in the European Heart Journal, say more studies are needed to keep improving care. This includes finding ways to detect AF earlier, ensuring everyone has fair access to treatment, and developing care plans that support both physical and mental health.

In the future, managing AF will likely mean combining heart care with broader health support—especially for people who are older or have other long-term conditions. With continued progress, it’s possible to help more people with AF live longer, healthier lives.

If you care about heart health, please read studies about how eating eggs can help reduce heart disease risk, and Vitamin K2 could help reduce heart disease risk.

For more information about health, please see recent studies that olive oil may help you live longer, and Vitamin C linked to lower risk of heart failure.

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