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Years of good blood sugar control helps diabetic hearts

Years of good blood sugar control helps diabetic hearts

Source: University of Michigan

Day in and day out, for years on end, millions of people with diabetes prick their fingers to test their blood sugar level. And many may wonder if all the careful eating, exercise and medication it takes to keep those levels under control is really worth it.

A recent study should encourage them to keep going for the long haul, to protect their hearts from diabetes-related damage. But it should also prompt them to work with their doctors on other ways to reduce their cardiovascular risk.

The key finding: 

And patients may not have to keep their blood sugar levels super-low to reap most of the cardiovascular benefit. The authors concluded that a long-term average of about 8 on the measurement called A1C hemoglobin was enough to achieve most of the benefit, but that many patients can be safely lowered to around 7.

Hayward notes that for anyone with Type 2 diabetes, a growing body of research supports the idea of taking four medications to help their hearts: metformin to control blood sugar, a statin to control cholesterol and other blood lipids, a blood pressure medication and aspirin.

“Taken together with findings from other large studies, we see that controlling blood sugar in diabetes can indeed decrease cardiovascular risk, though we continue to see no effect on risk of dying during the same time period,” says lead study author Rodney Hayward, M.D., of the VA Ann Arbor Healthcare System and the University of Michigan. “This finding reinforces the importance of combining good blood sugar control with control of other cardiovascular risk factors for a combined effect.”

This quartet of drugs, combined with diet, stopping smoking and exercise, could help millions of people stave off the heart attacks, strokes, heart failure and amputations due to poor circulation, many of which cause so much premature death and disability among people with diabetes. The drugs may also help prevent the other issues that can arise from the effect of diabetes on small blood vessels, including blindness, nerve pain or numbness and kidney failure.

But striving for even lower A1C levels in all people with diabetes may not increase cardiovascular benefit enough to be worth the effort, Hayward notes. Especially if patients receive newer drugs with unclear long-term safety, already take many other medications, or experience medication-related issues such as weight gain or frequent low blood sugar reactions.

“Once someone has his or her A1C around 8 percent, we need to individualize treatment to the patient, balancing his or her individual cardiovascular risk based on personal and family history, his or her age and life expectancy, smoking history and medication side effects,” he says. “If you want to determine what the best A1C number is for you, and when should take another medication to lower it, you should decide with your doctor.”

(WhatDoctorsKnow is a magazine devoted to up–to–the minute information on health issues from physicians, major hospitals and clinics, universities and health care agencies across the U.S. Online at www.whatdoctorsknow.com.)

(c) 2016 WHATDOCTORSKNOW.COM. DISTRIBUTED BY TRIBUNE CONTENT AGENCY, LLC.

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