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HardCardiologyHFrEF Device Therapyus-abimus-usmle-step-3

A 58-year-old with LVEF 25% and sinus rhythm has resting HR 84 bpm on carvedilol 25 mg BID, sacubitril/valsartan, spironolactone, and dapagliflozin. Recurrent hospitalizations. Which device therapy is appropriate after GDMT optimization if QRS 160 ms LBBB?

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