BOSTON — A medical cynic might say that expanding waistlines lead to expanding device indications, but the issue of whether cardiac resynchronization therapy (CRT) is appropriate for patients with right bundle branch blockage (RBBB) surfaced at the annual meeting of the Heart Rhythm Society (HRS; Washington). Two cardiologists made their cases in support of and in opposition to the use of CRT for RBBB and other non-LBBB syndromes, and an informal survey conducted before and after the face-off suggested that cardiologists who are opposed to an expanded indication can be swayed by existing evidence.
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