Pedirhythm is an international biennial meeting focused on arrhythmia care for infants, children, and patients of all ages with congenital heart disease. Pedirhythm held its inaugural meeting in Istanbul in 2003. As the meeting grew in attendance, the venue shifted to other major European cities and, for the first time in 2022, the United States. Pedirhythm X, the 10th edition, came to Boston and was hosted by the cardiac electrophysiology division at Boston Children’s Hospital.