Why the study?
What are the rates and causes of non-response to cardiac resynchronization therapy in patients with advanced heart failure?
Population
Patients with New York Heart Association class III or IV congestive heart failure and intraventricular…
Design
Review
Key result
Cardiac resynchronization therapy has an estimated true non-responder rate of 40-50%, driven by factors such as mechanical dyssynchrony, left ventricular pacing site, and heart failure etiology.
Authors
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May guide refined CRT selection and optimization; leaves open randomized validation of targeted strategies.
What are the rates and causes of non-response to cardiac resynchronization therapy in patients with advanced heart failure?
This review highlights that the true non-response rate to CRT may be as high as 40-50% and emphasizes the need for targeted lead placement and post-implant optimization.
Birnie et al. (2005) conducted a review in Congestive heart failure. Cardiac resynchronization therapy was evaluated on Non-response rate. Cardiac resynchronization therapy has an estimated true non-responder rate of 40-50%, driven by factors such as mechanical dyssynchrony, left ventricular pacing site, and heart failure etiology.