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  • Heavy drinking by AF...

Heavy drinking by AF patients tied to stroke and embolism: ESC study

Written By : Dr. Kamal Kant Kohli Published On 2020-12-03T07:15:31+05:30  |  Updated On 3 Dec 2020 2:59 PM IST
Heavy drinking by AF patients tied to stroke and embolism: ESC study
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Sophia Antipolis - Fourteen drinks a week is linked with a higher risk of health problems including stroke and embolism in patients with atrial fibrillation, according to research published in EP Europace, a journal of the European Society of Cardiology (ESC).

"Our study suggests that atrial fibrillation patients should avoid heavy alcohol consumption to prevent stroke and other complications," said author Dr. Boyoung Joung of Yonsei University College of Medicine, Seoul, Republic of Korea.

The study included 9,411 patients with atrial fibrillation from 18 tertiary hospitals covering all geographical regions of South Korea. Patients were categorised into four groups according to their weekly alcohol consumption (one drink contains 14 grams of alcohol): abstainer/rare (0 grams/less than one drink), light (less than 100 grams/7 drinks), moderate (100–200 grams/7–14 drinks), and heavy (200 grams/14 drinks or more).
A total of 7,455 (79.2%) patients were classified as abstainer/rare, 795 (8.4%) as light, 345 (3.7%) as moderate, and 816 (8.7%) as heavy alcohol consumption.
Patients were followed-up for a median of 17.4 months for adverse events, which included stroke, transient ischaemic attack, systemic embolism (a blood clot in a limb or organ), and hospitalisation for rate or rhythm control of atrial fibrillation or for heart failure management. The researchers recorded how many patients experienced any of these events and calculated the incident rate (number of events per 100 person-years). Incident rates were 6.73, 5.77, 6.44, and 9.65 in the abstainer/rare, light, moderate, and heavy drinkers, respectively.
The researchers compared the risk of adverse events in the light, moderate, and heavy drinkers to the abstainer/rare group. Heavy drinking was associated with a 32% increased risk compared with the abstainers and rare drinkers. No significant association was observed for light or moderate alcohol consumption.
Dr. Joung said: "Our study did not find any significant association between light or moderate drinking and complications. A significant deleterious relationship with heavy drinking was identified, suggesting that heavy alcohol consumption should be avoided."
Subgroup analyses showed that the impact of heavy drinking was more pronounced in patients with low stroke risk2 compared to those at moderate or high stroke risk. Similarly, heavy drinking was associated with a greater likelihood of unfavourable outcomes in patients without high blood pressure compared to those with high blood pressure. Higher risks were also observed in patients not using beta-blockers or antiplatelet medications compared to those taking the drugs.
Dr. Joung said: "The findings indicate that heavy drinking is particularly detrimental for atrial fibrillation patients who are considered less vulnerable to complications. Clinicians should ask patients about their alcohol consumption and take it into account when calculating their stroke risk."
He concluded: "While heavy drinking should be strongly discouraged among atrial fibrillation patients, moderate drinking seems to be safe."
For further reference log on to:
1Lim C, Kim TH, Yu HT, et al. Effect of alcohol consumption on the risk of adverse events in atrial fibrillation: from the COmparison study of Drugs for symptom control and complication prEvention of Atrial Fibrillation (CODE-AF) registry. Europace. 2020. doi:10.1093/europace/euaa340.
2Stroke risk was calculated using the CHA2DS2-VASc score which allocates points to Congestive heart failure (1), Hypertension (1), Age 75 years or older (2), Diabetes mellitus (1), Stroke history (2), Vascular disease (1), Age 65–74 years (1), and Sex category (female) (1). Patients are considered at low risk of stroke when the score is 0 in men and 1 in women.

EP Europaceheavy drinkingEuropean Society of CardiologyESCatrial fibrillationstrokeEmbolism
Source : EP Europace
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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