Why the study?
Does cardiac resynchronization therapy (CRT) upgrade improve cardiac function and symptoms in patients developing heart failure during long-term right ventricular apical pacing for acquired complete atrioventricular block?
Population
18 consecutive patients with acquired complete atrioventricular block who developed otherwise unexplained…
Comparison
Cardiac resynchronization therapy upgrade vs Baseline
Design
Cohort
Follow-up
12 months
Authors
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CRT upgrade associated with gains in RV-paced HF; extends observational data but leaves open need for RCTs.
Does cardiac resynchronization therapy (CRT) upgrade improve cardiac function and symptoms in patients developing heart failure during long-term right ventricular apical pacing for acquired complete atrioventricular block?
Upgrading to cardiac resynchronization therapy significantly improves left ventricular function, symptoms, and reduces hospitalizations in patients who develop heart failure induced by long-term right ventricular apical pacing.
Shimano et al. (2007) studied this question.
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