Heart failure patients represent a group of individuals at higher risk for cardiac arrhythmias. There is a perception that caffeine consumption may represent an increase in this risk. Although the medical staff and health professionals suggest a reduction in the intake of this substance to patients considered at risk, there is no scientific proof for this recommendation. Some animal studies suggest a possible association between arrhythmias and caffeine use with higher doses, but this finding did not appear in human studies. In particular, little is known about the association between caffeine consumption and arrhythmias in patients with heart failure, especially at higher doses of consumption. More specific and safe guidelines on caffeine consumption are needed.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
112
Five doses of 100mg of caffeine diluted in 100 ml of decaffeinated coffee. One dose every hour for five hours
Hospital de Clínicas de Porto Alegre
Porto Alegre, Rio Grande do Sul, Brazil
RECRUITINGArrhythmias
Time frame: 6 hours
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