Study discovers cheek swab test provides early diagnosis of serious heart condition in children

A new, simple cheek-swab test, funded by the British Heart Foundation and unveiled at the European Society of Cardiology Congress in Madrid on 1 September 2025, may detect arrhythmogenic cardiomyopathy (ACM) years before symptoms appear. ACM is a genetic disorder responsible for over 10 percent of sudden cardiac deaths in children, caused by abnormalities in the proteins connecting heart cells…