iRhythm Technologies Inc. has announced new data presented at the 18th Asia Pacific Heart Rhythm Society (APHRS) and Japanese Heart Rhythm Society (JHRS) 2025 Joint Scientific Session in Yokohama, Japan, held November 12-15. The study, led by Dr. Hiro Kawata, compared device compliance, performance, arrhythmia detection, and repeat-testing rates between Asian and non-Asian populations in a large cohort of 408,470 U.S. patients monitored with iRhythm's Zio long-term continuous ECG monitoring (LTCM) service from 2018 to 2022. The results demonstrated that median wear and analyzable time among Asian patients were comparable to those of non-Asian patients, and the findings were consistent with previously published studies. iRhythm is also collaborating with investigators in Japan to further expand evidence across local patient populations and clinical settings.