A study found that drinking at least a cup of caffeinated coffee daily significantly lowered the risk of atrial fibrillation, a common heart condition.

In patients with persistent AF who underwent cardioversion, a cup of joe per day lowered the risk of recurrences at 6 months.

Adults treated for atrial fibrillation (AFib) who drank a daily cup of coffee were 39% less likely to have an irregular heart rhythm episode compared to those who avoided all caffeinated products, according to a new study.

A cup of caffeinated coffee each day may lower the risk of an irregular heart rhythm coming back after treatment. That is the headline finding from the DECAF trial, published in JAMA, which tracked 200 adults with atrial fibrillation or atrial flutter following electrical cardioversion.

Background A 60-year-old male with obesity (body-mass index 43 kg/m 2) presented with recurrent symptomatic atrial fibrillation (AF), which he had had since age 41 years. The AF was refractory to treatment with antiarrhythmic drugs. Pacemaker implantation ...

In fact, coffee drinkers had a significant decrease in the clinically detected recurrence of Afib or atrial flutter compared with peers assigned to abstain from coffee and caffeine in the 200-person study (47% vs 64% having episodes lasting 30 seconds, HR 0.61, 95% CI 0.42-0.89).