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Utility Menu Main navigation Together We Share a Mission The Heart Rhythm Society HRS is a 501c3 international nonprofit organization. Founded in 1979 HRS is a leading resource on cardiac pacing and electrophysiology. Our specialty organization represents medical allied health and science professionals from more than 90 countries who specialize in cardiac rhythm disorders. 8617 Total HRS Members 91 Total Countries Represented 15969 Total Learners Latest from HRS Restructuring for Advocacy On Tuesday October 15 2024 the Heart Rhythm Society HRS Board of Trustees unanimously approved the formation of Heart Rhythm Advocates HRA as a new shared vision causerelated nonprofit 501c6 advocacy organization to complement the primary 501c3 nonprofit structure of the Heart Rhythm Society.