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Diabetes linked to irregular heartbeat

Diabetes is linked to a 40 per cent greater risk of developing atrial fibrillation— the most common kind of chronically irregular heartbeat, found a new study.  Led by Dr. Sascha Dublin of   Group Health Research Institute  , the researchers also found that this risk rises even higher the longer people have diabetes and the less controlled their blood sugar is.   For three years, the researchers tracked more than 1,400 Group Health patients who had newly recognised atrial fibrillation. They compared these cases with more than 2,200 ‘controls.’ The controls were matched to the cases by age, sex, year, and whether they were treated for high blood pressure; but unlike the cases, they had no atrial fibrillation.