Heart mapping procedure could unlock better genetic answers for rare disease

This study tested whether doctors could collect heart muscle cells during a standard heart mapping procedure and use their DNA to improve genetic testing for a rare heart condition called arrhythmogenic right ventricular cardiomyopathy (ARVC). Researchers worked with 34 patients who already needed the mapping procedure for their ARVC diagnosis. The goal was to see if this cell collection method could provide clearer genetic information than standard blood tests, which sometimes miss the cause of the disease.