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Updated: Jul 15, 2026

Percutaneous Contrast Echocardiography-guided Intramyocardial Injection and Cell Delivery in a Large Preclinical Model
Published on: January 21, 2018
[The best of cardiac failure in 2006]
1Hôpital Bichat, service de cardiologie, Paris. guillaume.jondeau@apr.aphp.fr
Insights
Diastolic dysfunction is increasingly important, with a prognosis similar to systolic heart failure. Research shows potential benefits in resynchronization therapy and left ventricular assist devices for heart failure patients.
Area of Science:
- Cardiology
- Heart Failure Research
Background:
- Increasing clinical significance of diastolic dysfunction, previously underestimated.
- Systolic dysfunction research remains stable, but diastolic dysfunction prognosis is now recognized as serious.
- Challenges in diastolic dysfunction research necessitate innovative approaches.
Purpose of the Study:
- To review recent advancements in understanding and treating diastolic dysfunction.
- To highlight progress in cardiac resynchronization therapy criteria and outcomes.
- To discuss novel interventions for severe systolic dysfunction.
Main Methods:
- Analysis of recent studies focusing on diastolic dysfunction.
- Review of echocardiographic criteria for asynchrony in resynchronization therapy.
- Evaluation of left ventricular assist device efficacy in severe systolic dysfunction.
Main Results:
- ACE-inhibitors showed a trend towards benefit in diastolic dysfunction (PEP CHF study).
- Resynchronization therapy benefits are optimized with less fibrosis, non-ischemic heart disease, and specific pacing zones.
- Left ventricular assist devices show promise for severe systolic dysfunction.
Conclusions:
- Diastolic dysfunction requires greater clinical attention due to its serious prognosis.
- Optimized patient selection and technique are crucial for successful cardiac resynchronization therapy.
- Advanced circulatory assistance offers a promising therapeutic option for end-stage systolic heart failure.
Abstract:
This year, several studies performed were justified by the increasing importance of diastolic dysfunction, while the systolic dysfunction remains stable. Its prognosis, previously considered as benign, is similar to heart failure due to systolic dysfunction. Studies are difficult in this field and we are often satisfied by imperfect results: PEP CHF, limited by the enrollment issue, showed only a trend for a beneficial effect of ACE-inhibitors. However the study can be considered as significant if only limited to the first year of follow-up, which can be justified. The second major field of research is resynchronization therapy: echocardiographic studies keep on providing asynchrony criteria. The benefit is greater in case of less extended fibrosis, and if the heart disease is non-ischemic, and if the paced zone does not contain fibrosis. Finally, a promising study on the interest of left ventricular discharge by a long-term circulatory assistance in case of severe systolic dysfunction should be cited.
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