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Published on: July 18, 2014
Complete Heart Block in a Patient Declining Pacemaker Implantation: A Discussion on Patient-Centered Care and Shared
Robert W Buntyn1, Vraj Patel1, Hope N Lewis2
1Internal Medicine, Wright State University Boonshoft School of Medicine, Dayton, USA.
Insights
Patients with irreversible complete heart block (CHB) or high-risk second-degree type II atrioventricular (AV) block require permanent pacemaker (PPM) implantation. This case highlights the unexpected progression to CHB and patient autonomy challenges.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Ethics
Background:
- Permanent pacemaker (PPM) implantation is standard for irreversible complete heart block (CHB) and high-risk second-degree type II atrioventricular (AV) block.
- First-degree AV block and second-degree type I AV block typically do not necessitate PPM implantation unless under specific circumstances.
- Second-degree type II AV block carries a significant risk of progressing to CHB, unlike lower-grade AV blocks.
Abstract:
Permanent pacemaker (PPM) implantation is the standard of care in patients with complete heart block (CHB) and second-degree type II atrioventricular (AV) block irrespective of patient symptoms when the conduction abnormality is irreversible. CHB generally constitutes a medical emergency that can be fatal if not urgently treated. This is in contrast to first-degree AV block and second-degree type I AV block, which require PPM implantation only in very special circumstances. While second-degree type II AV block is considered to be at high risk for progression to CHB, this does not occur with first-degree and second-degree type I AV blocks. Here, we present a patient who demonstrated over a number of years a progression from first-degree to second-degree type I AV block and then, quite unexpectedly, to CHB. Despite multiple discussions of the benefits of PPM implantation with cardiology staff, the patient elected to forgo the procedure. This case discusses patient-centered care and the therapeutic dilemma that can develop when there is an incongruence between the principles of beneficence and patient autonomy.
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