Too much alcohol may raise death risk in people with abnormal heart rhythms

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In a new study, researchers found when patients under age 54 were hospitalized with abnormal heart rhythms, those who abused alcohol were 72% more likely to die before being discharged.

Alcohol abuse has harmful effects on physical health, leading to more illness and death in patients with heart problems.

This is the first study to explore whether alcohol abuse is a risk factor for death in patients hospitalized with arrhythmia.

The research was conducted by a team at Griffin Memorial Hospital in Norman, Oklahoma.

Arrhythmias are conditions in which the heart beats too slowly, too quickly or erratically.

Underlying heart problems can result in arrhythmia when electrical impulses are unable to move through the heart properly to generate a steady beat. Excessive alcohol use is known to promote the development of arrhythmia.

In the current study, the researchers reviewed deaths among almost 115,000 patients (ages 15 to 54) hospitalized for arrhythmia between 2010 and 2014.

Nearly one in 10 of the patients were also diagnosed with alcohol abuse, in this study defined as drinking that causes problems at home, work, or school, whether or not the person is considered physically dependent on alcohol.

The researchers found arrhythmia patients were more likely to die in the hospital if they had clogged arteries, diabetes or were aged 45-54 rather than being a younger adult; and

patients hospitalized with abnormal heart rhythms were 72% more likely to die of any cause before discharge if they also were diagnosed with alcohol abuse or dependence.

The team says doctors should educate patients with alcohol problems about their risk of hospitalization for arrhythmia and their increased risk of death. Integrated care models need to be developed to formulate strategies to counter problematic alcohol use and improve the health-related quality of life of patients.

Further studies are needed to determine the impact of social alcohol use in people with abnormal heart rhythms who do not abuse alcohol.

The design of this study cannot prove a cause and effect relationship between alcohol abuse and death from abnormal heart rhythms.

Results of this study on adults aged 54 and younger, who are the most likely to have substance abuse problems, may not be generalizable to older adults.

One author of the study is Rikinkumar S. Patel, M.D., M.P.H.

The study was presented at the virtual American Heart Association’s Basic Cardiovascular Sciences 2020 Scientific Sessions.

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