Related Experiment Video
Updated: Jun 23, 2026

Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR
Published on: April 8, 2013
Left ventricular function and the timing of surgical treatment in valvular heart disease
Insights
Surgical intervention for valvular heart disease may be recommended to preserve left ventricular function, especially in cases of aortic regurgitation and chronic mitral regurgitation with specific indicators of cardiac strain.
Area of Science:
- Cardiology
- Cardiac Surgery
- Cardiovascular Medicine
Background:
- Determining optimal timing for surgical intervention in valvular heart disease to prevent irreversible left ventricular damage remains a clinical challenge.
- Left ventricular (LV) function is crucial for long-term outcomes in patients with valvular heart disease.
Purpose of the Study:
- To evaluate the indications for surgical treatment of valvular heart disease, focusing on the preservation of left ventricular function.
- To clarify when valve replacement or repair should be considered even in the presence of minimal symptoms.
Main Methods:
- Review of clinical outcomes and left ventricular function following surgical intervention for aortic stenosis, aortic regurgitation, and chronic mitral regurgitation.
- Analysis of factors such as left ventricular size, ejection fraction, and symptom severity in relation to postoperative function.
Main Results:
- In aortic stenosis, LV function typically improves post-aortic valve replacement, suggesting surgery is not solely indicated for prevention of dysfunction.
- In aortic regurgitation, surgery is considered with progressive cardiomegaly and reduced systolic function, even with mild symptoms.
- In chronic mitral regurgitation, impaired LV function postoperatively is noted with marked LV enlargement and mildly reduced ejection fraction, warranting consideration for early surgery.
Conclusions:
- Operative risks for valve replacement/repair are acceptably low.
- Surgical intervention for valvular heart disease can be prioritized for preserving left ventricular function in specific clinical scenarios, particularly in aortic regurgitation and chronic mitral regurgitation.
Abstract:
The problem of when to recommend surgical treatment for valvular heart disease to avoid irreversible left ventricular damage has not been fully resolved. In aortic stenosis, left ventricular function tends to improve after aortic valve replacement even if it is markedly depressed, and operation solely to prevent irreversible left ventricular dysfunction does not seem indicated. In aortic regurgitation, left ventricular function also usually improves postoperatively if moderately depressed, but in an adult with relatively few symptoms operation should be considered when there is progressive or marked cardiomegaly with reduced systolic function. In chronic mitral regurgitation, limited studies indicate that if left ventricular size is markedly increased and the ejection fraction is even mildly reduced, left ventricular function deteriorates postoperatively; in such patients consideration of operation may be warranted even if symptoms are few. It is concluded that operative mortality and morbidity are now sufficiently low that valve replacement or repair can be considered primarily to preserve left ventricular function under certain circumstances.
More Related Videos
Related Concept Videos
Mitral Regurgitation III: Medical Management
Mitral Stenosis I: Introduction
Mitral Stenosis III: Medical Management
Aortic Regurgitation III: Medical Management
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy V: Interprofessional Care

