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Updated: Oct 23, 2026

Implantation of Total Artificial Heart in Congenital Heart Disease
Published on: July 17, 2014
[Pacemaker implantation for heart failure with bradycardia (author's transl)]
Insights
Pacemakers improve survival and heart function in bradycardic heart failure patients. However, long-term outcomes are less favorable for those with severe heart failure.
Area of Science:
- Cardiology
- Medical Devices
- Clinical Research
Context:
- Bradycardic heart failure presents significant management challenges.
- Syncope and heart failure impact patient prognosis.
- Pacemaker implantation is a key intervention for bradycardia.
Purpose:
- To evaluate the long-term efficacy of pacemakers in patients with bradycardic heart failure, with or without syncope.
- To assess survival rates and functional status post-pacemaker implantation across different patient groups.
Summary:
- This study analyzed 337 patients undergoing pacemaker implantation for bradycardic heart failure.
- Survival rates varied significantly by group: Adams-Stokes attacks without heart failure (Group I), with heart failure (Group II), and heart failure alone (Group III).
- Group II patients (mild/moderate heart failure) showed definite improvement, while Group III (severe heart failure) had mixed results.
Impact:
- Pacemakers offer improved survival and functional capacity for many bradycardic heart failure patients.
- Long-term prognosis remains guarded for individuals with severe heart failure and bradycardia, even with pacemakers.
- Findings inform clinical decision-making regarding pacemaker use in complex cardiac conditions.
Abstract:
The long-term effect of pacemakers in the management of bradycardic heart failure with or without syncope was tested on 337 patients. The cumulative survival rate of patients with Adams-Stokes attacks without heart failure (group I) was 91% at the end of one year, 73% at the end of three and 35% at the end of eight years. Among patients with Adams-Stokes attacks and accompanying heart failure (group II) 81% survived one year, 64% three and 46% five years, but only 25% eight years. Among patients in whom heart failure was the only indication for pacemaker implantation (group III), 70% were still alive after one year, 56% after three and 17% after five years. Related to the severity of heart failure before and after pacemaker implantation, most of the patients of group II (mild or moderately severe failure) had definite improvement, while of those in group III (mainly severe failure) only about half had less cardiac failure. In patients with severe heart failure and bradycardia (without syncope) long-term results are not likely to be very good, as regards both duration of survival and physical capacity.
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