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Irregular heartbeat may cause serious health issues: study

An irregular heartbeat may lead to a wide range of serious health issues, including heart attacks, heart failure, chronic kidney disease and sudden cardiac death, a large new study has warned.

The findings show that the risk associated with many of these events is greater than that of stroke – a known risk of atrial fibrillation – prompting the researchers to call for interventions to reduce the risk of non-stroke outcomes in
adults with the condition.

It is already known that atrial fibrillation or irregular heartbeat is associated with an increased risk of stroke and death, as well as higher medical costs and a reduced quality of life, researchers said. However, the association between atrial fibrillation and cardiovascular events other than stroke is less clear.

Researchers based at the University of Oxford in the UK and the Massachusetts Institute of Technology in the US set out to quantify the associations between atrial fibrillation and cardiovascular disease, renal (kidney) disease, and death.
They analysed the results of 104 studies involving over nine million participants (587,867 with atrial fibrillation).

 Differences in study design and quality were taken into account to minimise bias.
Atrial fibrillation was associated with an increased risk of a range of different outcomes, including all cause mortality, ischaemic heart disease, chronic kidney disease, heart failure, and sudden cardiac death, researchers found.

Absolute risk increases (based on the US population) included 3.8 events per 1,000 participant years for all cause mortality, 1.4 events per 1,000 participant years for ischaemic heart disease, and 6.6 events per 1,000 participant
years for chronic kidney disease. The absolute risk increase for heart failure (11 events per 1,000 participant years) was the highest among the outcomes examined, researchers said.

Atrial fibrillation was also associated with a twofold risk of cardiovascular mortality, a 2.3-fold risk of stroke, and a fivefold risk of incident congestive heart failure. Further analyses to test the strength of the associations between atrial fibrillation and these outcomes were broadly consistent, suggesting that the results are robust.

The researchers point out that the risk increases associated with many of these events is greater than that of stroke, and say their study “adds to the growing literature on the association between atrial fibrillation and cardiovascular
outcomes beyond stroke.” “Our study could have implications for the prioritisation
of public health resources and the development of novel interventions for adults with atrial fibrillation,” they said.

About Elliot Hammond

Hello! I'm Elliot – An Engineer, An Entrepreneur, A Health & Lifestyle Blogger. Welcome to my blog where you can read all about living healthy,lifestyle info,relationships, and all things fun and inspiring! Thanks for stopping by!

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