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Drinking less often may be important to protect against atrial fibrillation: Study

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Washington D.C. | October 20, 2019 6:41:32 PM IST
If you consume alcohol frequently, here is the news for you. A new study shows that drinking a small amount of alcohol frequently is linked with a higher likelihood of atrial fibrillation than infrequent binge drinking.

The study has been published in EP Europace, a journal of the European Society of Cardiology (ESC).

Dr Jong-Il Choi, the study author from Korea University College, said: "Recommendations about alcohol consumption have focused on reducing the absolute amount rather than the frequency. Our study suggests that drinking less often may also be important to protect against atrial fibrillation."

Binge drinking did not show any clear link with new-onset atrial fibrillation. "Our study suggests that frequent drinking is more dangerous than infrequent binge drinking with regard to atrial fibrillation," said Dr Choi.

Atrial fibrillation is the most common heart rhythm disorder and raises the risk of stroke by five-fold. Symptoms include palpitations, racing or irregular pulse, shortness of breath, tiredness, chest pain and dizziness.

A meta-analysis showed a linear correlation between alcohol and atrial fibrillation: risk increased by 8 per cent for every 12g of alcohol consumed per week.

But it was not clear which is more important: the total amount of alcohol or the number of drinking sessions. The researchers did a comparative study where they examined the relative importance of frequent drinking versus binge drinking for new-onset atrial fibrillation.

The analysis included 9,776,956 individuals without atrial fibrillation, who underwent a national health check-up in 2009 which included a questionnaire about alcohol consumption. Participants were followed-up until 2017 for the occurrence of atrial fibrillation.

The number of drinking sessions per week was the strongest risk factor for new-onset atrial fibrillation. Compared with drinking twice per week (reference group), drinking every day was the riskiest, with a hazard ratio (HR) of 1.412, while drinking once a week was the least risky (HR 0.933).

"The number of drinking sessions was related to atrial fibrillation onset regardless of age and sex. Repeated episodes of atrial fibrillation triggered by alcohol may lead to overt disease. In addition, drinking can provoke sleep disturbance which is a known risk factor for atrial fibrillation," added Choi. (ANI)

 
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