Study from Graz: High caffeine consumption can trigger cardiac arrhythmias in children and adolescents

Background

Background

Caffeine, heart and circulation

The driver of this development, in the team's view, is primarily the growing consumption of energy drinks. "Der Koffeinkonsum bei Kindern und Jugendlichen hat in den vergangenen Jahren zugenommen, vor allem durch Energydrinks," the authors write. Energy drinks often contain high amounts of caffeine per bottle and are particularly easy for children and adolescents to access.

Study design and classification

Caffeine, heart and circulation

Practical implications

Caffeine has a stimulating effect on the central nervous system in the body and can raise pulse and blood pressure in the short term. In sensitive individuals or at very high doses, this can lead to palpitations, skipped beats, or noticeable arrhythmias, according to the study. In rare cases, more severe events including seizures have also been described, though these are not the focus of the present study.

Reactions

Study design and classification

Outlook

The Graz work is a review and analysis of existing data on the relationship between caffeine and heart health in minors. The summary does not cite specific patient numbers or dosages; the focus is on warning against a possible underestimation of the risks. Findings from other research were also incorporated, including from Poland, as well as comparative data from MedUni Vienna.

Practical implications

For pediatric cardiology, the study means that in children and adolescents with unclear cardiac symptoms, consumption of energy drinks and caffeinated beverages should always be inquired about. The authors see their findings as an argument for increased education in schools and families, as well as for clear labeling and age recommendations on caffeinated products.

Reactions

As of editorial deadline, there was no official statement from Austria regarding the specific study. Pediatric cardiologists have, however, emphasized for years that energy drinks are unsuitable for children and adolescents. The Graz results reinforce this assessment from a scientific standpoint.

Outlook

The team led by Kurath-Koller announces that it intends to continue monitoring the data situation and to conduct prospective studies in the future. The goal is to identify specific threshold values above which caffeine triggers measurable changes in the heart in young people. Until then, the researchers recommend consistently limiting the consumption of energy drinks in children and adolescents.