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PostPosted: 06 Apr 2016 23:13 
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Today most health-conscious adults know the value of monitoring their cardiovascular risk factors regularly. Most people now know the risk factors are high cholesterol, diabetes, smoking, sedentary lifestyle, obesity, and hypertension. Now, new research suggests that vitamin D may play an essential yet overlooked role in staving off heart disease. Vitamin D deficiency may eventually be added to the list of causative factors that contribute to cardiovascular disorders.

A growing body of research indicates that vitamin D deficiency contributes to a broad spectrum of conditions such as high blood pressure, poor insulin sensitivity, inflammation, and other fundamental processes that underlie heart disease. Alarmingly, vitamin D deficiency is extremely common throughout the population—affecting more than half of adults and the majority of the elderly. Heart failure affects more than 23 million worldwide. The condition can affect people of all ages, but it is more common in older people -- more than half of all people globally with heart failure are over the age of 75.

The new research suggests that a daily dose of vitamin D3 is likely to improve chronic failure of the heart. The results revealed that for patients with heart disease taking vitamin D3 regularly may lessen the need for them to be fitted with an implantable cardioverter defibrillator (ICD), a device that detects dangerous irregular heart rhythms and can shock the heart to restore a normal rhythm.

The patients, in the study, who took vitamin D3 experienced an improvement in heart functioning, as compared to those who did not.

The ejection fraction -- measuring the pumping of blood from the heart with each heartbeat -- in heart failure patients is often significantly impaired whereas in a healthy person it is usually between 60 and 70 percent. The heart's pumping function improved from 26 percent to 34 percent, in patients who took Vitamin D3.

"This is a significant breakthrough for patients. It is the first evidence that vitamin D3 can improve heart functioning of people with heart heart failure," said led researcher Klaus Witte from the University of Leeds in Britain.

The study involved more than 160 patients from Leeds who were already being treated for their heart failure using proven treatments including beta-blockers, ACE-inhibitors and pacemakers. The targeted patients were asked to take vitamin D3 or a placebo tablet for one year. Those who took placebo, there was no change found in cardiac function.

The findings could make a significant difference to the care of heart failure patients as ICDs are expensive and involve an operation, the researchers maintained.

The findings were presented at the American College of Cardiology 65th Annual Scientific Session & Expo in Chicago, US.


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