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Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
Cardiac resynchronisation therapy: results from daily practice in Rijnstate Hospital, Arnhem
A M Rolink1, F W A Verheugt, H A Bosker
1Department of Cardiology, Heart Lung Centre, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands.
Insights
Cardiac resynchronisation therapy (CRT) improves outcomes for heart failure patients. This study found high implantation success and low mortality, but noted a persistent high rate of heart failure hospitalizations in daily practice.
Area of Science:
- Cardiology
- Medical Devices
- Heart Failure Management
Background:
- Cardiac resynchronisation therapy (CRT) is established for heart failure, but real-world clinical consequences require further evaluation.
- Optimal pharmacological therapy preceded CRT implantation in eligible patients.
- This study assesses CRT outcomes in a single center's patient cohort.
Purpose of the Study:
- To evaluate the clinical outcomes of cardiac resynchronisation therapy (CRT) in a real-world clinical setting.
- To analyze implantation procedures, hospitalizations, mortality, and device-related events in CRT patients.
- To compare single-center CRT outcomes with published data.
Main Methods:
- Retrospective analysis of 119 consecutive patients undergoing CRT implantation between November 2000 and January 2006.
- Data collection included implantation success rates, procedural complications, hospital admissions (cardiac and non-cardiac causes), mortality causes, and device-related events.
- Five-year cumulative survival was estimated.
Main Results:
- CRT implantation was successful in 97% of patients, with a low prevalence of procedural complications (8 patients).
- During follow-up, 22 patients (18.5%) died from various causes, including heart failure (11) and sudden cardiac death (4).
- The estimated five-year cumulative survival was 70%, with 81 hospitalizations, predominantly for cardiac reasons (77).
Conclusions:
- The study demonstrated a high procedural success rate and low mortality for CRT, aligning favorably with other research.
- Despite improvements in functional capacity, a significant rate of heart failure-related hospitalizations persisted in daily practice.
- Single-center data suggests CRT is safe and effective, but ongoing management of heart failure remains crucial.
Background:
Cardiac resynchronisation therapy (CRT) is an effective treatment to improve the clinical outcome of selected patients with heart failure. Clinical trials have studied clinical outcome and reported clinical improvements, but clinical consequences and results in daily practice are less well known. We evaluated clinical outcome in all patients with CRT implantation in our centre.
Methods:
Data of 119 consecutive patients who met the criteria for CRT implantation in Rijnstate Hospital, Arnhem in the period 28 November 2000 until 1 January 2006 were collected. We analysed implantation procedure, hospitalisation for heart failure or other causes, mortality and device-related events.
Results:
In total 119 patients (83 men, 36 women; mean age 69 years) were eligible for CRT. Before implantation they had received optimal pharmacological therapy. Implantation was successful in 97% of patients. Procedural-related complications were seen in eight patients. During follow-up, 22 patients (18.5%: 14 men, 8 women) died. Causes of death were heart failure (11 patients), sudden cardiac death (4 patients) and noncardiac death (7 patients). Hospitalisation occurred 81 times, of which 77 for cardiac reasons. In follow-up the estimated five-year cumulative survival was 70%.
Conclusion:
This retrospective study from a single centre showed a high procedural success rate, low prevalence of complications and low mortality in comparison to other studies. Despite better functional capacity, the hospitalisation rate due to heart failure was high. (Neth Heart J 2009;17:6-8.).
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