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Reverse left ventricular remodeling after aortic valve replacement for aortic stenosis: a systematic review and
F Sousa Nunes1,2, C Amaral Marques3, A Isabel Pinho3
1Cardiovascular R&D Centre-UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal.
Frontiers in Cardiovascular Medicine
|July 19, 2024
Summary
Aortic valve replacement (AVR) effectively reverses left ventricular (LV) remodeling in patients with aortic stenosis. This process, characterized by reduced LV mass and improved function, begins as early as one month post-procedure.
Area of Science:
- Cardiology
- Cardiac Surgery
- Cardiovascular Imaging
Background:
- Reverse left ventricular (LV) remodeling is a key prognostic indicator following aortic valve replacement (AVR) in patients with aortic stenosis.
- Understanding the extent and timing of LV adaptation post-AVR is crucial for patient management and outcomes.
Purpose of the Study:
- To systematically review and meta-analyze existing literature to characterize the structural and dynamic changes in the unloaded left ventricle after AVR for aortic stenosis.
- To quantify the degree of reverse remodeling and identify factors influencing it.
Main Methods:
- A systematic search of MEDLINE/PubMed and Web of Science was conducted for studies reporting echocardiographic data before and at least one month after AVR.
- Twenty-seven studies comprising 11,751 patients were included in a random-effects meta-analysis.
- Standardized mean differences (SMD) were calculated to compare pre- and post-operative LV and aortic valve parameters.
Main Results:
- AVR led to a significant reduction in mean aortic gradient and LV mass.
- Significant decreases in LV end-diastolic diameter and volume were observed post-AVR.
- Effective aortic valve area increased, and LV ejection fraction improved, with reverse remodeling evident as early as one month after AVR.
Conclusions:
- This meta-analysis provides a quantitative characterization of expected reverse remodeling following AVR for aortic stenosis.
- The findings confirm that significant reverse remodeling occurs rapidly, often within one month, after aortic valve replacement.
