Impact of PHR messaging will be evaluated by timeliness of patient calls to clinic for adjustment in therapy, an improved percentage of LV pacing over 6 months compared to historical controls from the same clinic, as well as self-reported patient engagement. Timeliness of patient calls to clinic will be evaluated through record of patient calls to clinic 6 months prior to study and 6 months during study. Patient engagement will be evaluated through patient survey at start and end of study.