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You are 55, your heart looks like 65. Can an ECG be used to reverse heart health?

An individual’s ‘heart age’ derived from an ECG can provide valuable insights into their overall health status beyond their chronological age. This way lifestyle modifications can become a key strategy in preventive healthcare, says Dr Varun Bansal, Consultant, Cardiology and Cardio Thoracic surgery, Indraprastha Apollo Hospital, Delhi

heart healthBy analysing specific ECG parameters, such as heart rate, rhythm and electrical patterns, experts can estimate the heart’s biological age, which may differ from the person’s actual age (Source: Getty Images)
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You are 55, your heart looks like 65. Can an ECG be used to reverse heart health?
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Is the biological age of your heart higher than your chronological age? In that case, you could be more prone to cardiovascular diseases and would have to do an immediate course correction to reverse it. And all you need to map your heart is a simple electrocardiogram (ECG), where 12 leads can record its electrical activity and relative health.

So what this means is if you are 55 years old but your heart condition is equivalent to that of a 65-year-old according to the ECG reading, your vital organ has aged faster than you. You need to change your lifestyle, adopt healthy habits and seek medical opinion to reduce the risk of heart disease and your ECG-age. The mapping study was led by Honghuang Lin, PhD, professor of medicine and co-director of the Programme in Digital Medicine at UMass Chan Medical School. It expands what was previously known about how deep neural network machine-learning models can estimate age in large healthcare databases from diverse populations.

Dr Varun Bansal, Consultant, Cardiology and Cardio Thoracic surgery at Indraprastha Apollo Hospital, Delhi, says that an individual’s “heart age” derived from an ECG can provide valuable insights into their overall health status beyond their chronological age. It could make lifestyle modifications a key strategy in preventive healthcare.

How can ECG predict biological age and cardiovascular risk?

By analysing specific ECG parameters, such as heart rate, rhythm and electrical patterns, experts can estimate the heart’s biological age, which may differ from the person’s actual age. A higher “heart age” compared to the chronological age indicates potential cardiovascular risks. This innovative approach offers a non-invasive and cost-effective method to identify individuals at a higher risk of developing heart disease. Early detection allows for timely intervention, lifestyle modifications, and targeted treatments to mitigate risks and improve heart health.

As technology and medical research continue to progress, integrating ECG-based biological age estimation into routine health assessments could significantly enhance cardiovascular risk stratification and ultimately lead to better preventive healthcare practices.

Can healthier habits potentially lower the ECG-based biological age and reduce cardiovascular risks?

The findings from the study demonstrate the significance of adopting healthier habits, such as regular exercise, in influencing ECG age and cardiovascular risk. Engaging in physical activity has long been associated with numerous health benefits, including improved heart health. Regular exercise can positively impact heart rate, rhythm, and overall cardiovascular function, which in turn may lower the ECG age compared to the actual chronological age.

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What this technology does is quantify the risk, which then encourages people to lead active lifestyles, maintain a balanced diet, manage stress and take charge of their cardiovascular health. So ECG age estimation can become a motivational tool.

How does my ECG age get affected when I smoke or drink?

Smoking is a well-known risk factor for cardiovascular diseases. It can lead to changes in heart rate, rhythm and blood vessel function, potentially accelerating the ECG age compared to the actual age. Similarly, excessive alcohol consumption can also harm the heart, contributing to irregular heartbeats and weakening heart muscles, which may influence the ECG age.

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Individual responses to smoking and drinking vary and genetic factors may play a role in determining susceptibility to these risks. Moreover, the duration and intensity of these habits can further impact their effect on the ECG age. That’s why regular medical check-ups and ECG screenings are essential to monitor and manage cardiovascular risk effectively.

If my ECG-age is higher than my actual age, can it further lead to a higher risk of heart issues?

A higher ECG age, according to the study, can raise the risk of atrial fibrillation, myocardial infarction (heart attack), heart failure and death. When an individual’s ECG age surpasses their actual age, it suggests that their heart is exhibiting characteristics associated with older hearts. These ECG changes, such as altered heart rate, rhythm, and electrical patterns, can indicate underlying cardiovascular abnormalities and potential damage.

Atrial fibrillation, characterised by irregular and rapid heartbeats, is more likely to occur in individuals with an older ECG age. Moreover, an increased ECG age is also associated with a higher risk of myocardial infarction, as it may indicate compromised heart blood flow. Furthermore, an elevated ECG age correlates with a higher likelihood of heart failure, where the heart struggles to pump blood effectively. Lastly, an older ECG age is linked to a higher risk of mortality, reflecting the impact of cardiovascular strain on overall health.

Early identification of an elevated ECG age offers an opportunity for timely intervention, lifestyle modifications and targeted treatments, which can mitigate risks and improve heart health outcomes.

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What happens if the ECG age is lower than your chronological age?

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When an individual’s ECG age is younger than their actual age, it suggests that their heart is younger, healthier, stress-free and well-functioning. There are lower risks of adverse cardiac events like atrial fibrillation, myocardial infarction and heart failure. Additionally, individuals with a younger ECG age are less likely to experience premature death related to cardiovascular issues. Early identification of a lower ECG age can motivate individuals to maintain their healthy habits, which may include regular exercise, balanced nutrition, and stress management.

First published on: 11-08-2023 at 09:38 IST
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