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Underutilization of beta-blockers in patients undergoing implantable cardioverter-defibrillator and cardiac
Paul J Hauptman1, Jason P Swindle, Frederick A Masoudi
1Department of Medicine, Division of Cardiology, Saint Louis University School of Medicine, St Louis, MO 63110, USA. hauptmpj@slu.edu
Insights
Beta-blockers (BB) are underused in heart failure patients before and after cardiac device implantation, despite guidelines recommending optimal medical therapy. Post-procedure BB use shows a modest increase, highlighting a need for improved pre-procedure management.
Area of Science:
- Cardiology
- Pharmacology
- Health Services Research
Background:
- Current guidelines advocate for optimal medical therapy prior to cardiac device implantation.
- Evaluation of beta-blocker (BB) utilization in heart failure patients undergoing cardiac device procedures is essential.
Purpose of the Study:
- To assess the utilization of beta-blockers (BB) in patients with heart failure before and after cardiac device implantation.
- To identify trends in BB use in relation to cardiac device procedures.
Main Methods:
- Analysis of a large, multistate managed-care database (2003-2006).
- Inclusion criteria: adults with heart failure diagnosis and cardiac device procedure, with 180-day pre- and post-procedure enrollment.
- Primary outcome measures: BB use before device procedure and changes in use after discharge.
Main Results:
- A total of 2766 patients (78.8% male, median age 61) underwent primary prevention device procedures.
- 33.4% of patients did not have a pharmacy fill for BB in the 90 days preceding the procedure; these patients were older with fewer cardiology visits.
- BB use increased post-procedure, with 83.4% having at least one pharmacy fill during follow-up.
Conclusions:
- Beta-blockers (BB) are underutilized both before and after cardiac device procedures in heart failure patients.
- A slight increase in BB use is observed after device implantation.
- Strategies are needed to ensure optimal medical therapy, including BB, is initiated before device selection.
Background:
Current guidelines emphasize the need for optimal medical therapy before implantation of cardiac devices (implantable cardioverter-defibrillator, cardiac resynchronization therapy). Our objective was to evaluate use of beta-blockers (BB) among patients with heart failure undergoing a cardiac device procedure.
Methods And Results:
We used a large, multistate, managed-care database (January 2003 to December 2006) to identify adults admitted with an International Classification of Diseases, Ninth Revision (ICD-9) procedure code for cardiac device, continuous enrollment for 180 days before and 180 days after device procedure, and a primary or secondary ICD-9 diagnosis code for heart failure during that period. Our primary measures were use of BB before device procedure and changes after discharge. A total of 2766 beneficiaries (78.8% men; median age, 61 years) underwent a device procedure for primary prevention. The median number of days on BB therapy in the 90 days before device procedure was 46. Beneficiaries who did not have a pharmacy fill for BB during that time (n=925, 33.4%) were more elderly and had fewer antecedent outpatient visits with a cardiologist. There was a shift toward greater use of BB after device procedure; 83.4% had at least 1 pharmacy fill for a BB during follow-up.
Conclusions:
BB are underused before and after cardiac device procedures. There is a modest increase in use after the procedure. Strategies are required to ensure that patients are on optimal medical therapy before device therapy is selected.
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