Coffee And Heart Disease Part 5

Healthy Coffee

Coffee Benefits

CARDIAC ARRHYTHMIAS

There is little experimental evidence for the idea that caffeine causes cardiac arrhythmias. In intervention trials neither 300 nor 450 mg doses of caffeine increased the occurrence or severity of ventricular arrhythmias in patients recovering from a heart attack (1, 2). In addition 200 mg caffeine had no effect on patients with malignant ventricular arrhythmia (3) and 275 mg caffeine had no effect on patients with clinical ventricular tachycardia (4). Caffeine restriction had no effect on patients with symptomatic idiopathic ventricular beats (5).

In a prospective cohort study of 128,934 adults over 8 years there was no association between consumption of coffee and risk of death attributed to cardiac arrhythmia without specified cause (6). A review of intervention trials and epidemiological studies concluded that “moderate ingestion of caffeine does not increase the frequency or severity of cardiac arrhythmia’s in normal persons, patients with ischaemic heart disease, or those with pre-existing serious ventricular ectopy (7)”.

City of Hurstville, Australia,

Ethiopia, Addis Ababa,

Equatorial Guinea, Malabo,

Belarus, Minsk,

Bolivia, Sucre,

Ireland, Dublin,

New Zealand,

Libya, Tripoli,

Cincinnati, Ohio, USA

Charters Towers, Queensland

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