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Degenerative mitral valve prolapse — Clinical Guidelines

Overview

Degenerative mitral valve prolapse (MVP) leads to mitral regurgitation (MR) due to structural abnormalities in the mitral valve leaflets and chordae tendineae, often categorized into types like Barlow's disease (myxomatous degeneration) and fibroelastic deficiency. 1 3 7

Diagnosis

Echocardiography: Essential for assessing leaflet prolapse, MR severity, and identifying anatomical factors like prolapse width and gap 1 3.

Prolapse Width: Greater than 14 mm may indicate a need for additional clips in transcatheter edge-to-edge repair 1.

Lesion Location: Differentiate between central and noncentral lesions, as procedural outcomes can vary but procedural success rates remain comparable 2.

Cardiac Biomarkers: In veterinary context, NT-proBNP can be indicative of disease progression in dogs 4.

Management

Transcatheter Edge-to-Edge Repair (TEER): First-line treatment for high-risk patients with significant MR, with high procedural success rates 1 2 3.

Annuloplasty Rings: Dynamic engineered approaches preserving leaflet function show 100% reparability in surgical settings 5.

Surgical Repair: Conventional surgical techniques remain viable for suitable candidates, focusing on leaflet preservation and accurate annular sizing 5.

Special Populations

Veterinary Considerations: Dogs with DMVD show increased renal resistive index with advancing heart failure stages, suggesting potential renal hemodynamic changes 6.

No Specific Guidance: Abstracts do not provide detailed management strategies for pregnancy, pediatrics, or elderly populations specifically related to degenerative MVP.

Key Recommendations

Use transcatheter edge-to-edge repair for high-risk patients with degenerative MR, considering prolapse width >14 mm as a factor for additional clips 1 (Evidence: Moderate).

Transcatheter repair can be effectively applied to both central and noncentral lesions with comparable outcomes 2 (Evidence: Moderate).

For prohibitive surgical risk patients, TEER achieves significant reduction in MR severity with high procedural success rates 3 (Evidence: Strong).

In surgical settings, innovative techniques preserving leaflet dynamics demonstrate high reparability rates 5 (Evidence: Moderate).

References

1 Gao M, Ma J, Tang Y, Wang C, Duan F, Wang S et al.. Impact of Prolapse Width on Outcomes of Transcatheter Edge-to-Edge Repair in Degenerative Mitral Regurgitation. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 2026. link 2 Wei P, Feng S, Zhang F, Li H, Zhuang D, Jiang H et al.. Comparative Analysis of Central and Noncentral Degenerative Mitral Regurgitation Treated With Transcatheter Mitral Valve Edge-To-Edge Repair. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 2025. link 3 Marcoff L, Koulogiannis K, Aldaia L, Mediratta A, Chadderdon SM, Makar MM et al.. Echocardiographic Outcomes With Transcatheter Edge-to-Edge Repair for Degenerative Mitral Regurgitation in Prohibitive Surgical Risk Patients. JACC. Cardiovascular imaging 2024. link 4 Mattin MJ, Brodbelt DC, Church DB, Boswood A. Factors associated with disease progression in dogs with presumed preclinical degenerative mitral valve disease attending primary care veterinary practices in the United Kingdom. Journal of veterinary internal medicine 2019. link 5 Lawrie GM, Zoghbi W, Little S, Shah D, Ben-Zekry Z, Earle N et al.. One Hundred Percent Reparability of Degenerative Mitral Regurgitation: Intermediate-Term Results of a Dynamic Engineered Approach. The Annals of thoracic surgery 2016. link 6 Chetboul V, Daste T, Gouni V, Concordet D, Trehiou-Sechi E, Serres F et al.. Renal resistive index in 55 dogs with degenerative mitral valve disease. Journal of veterinary internal medicine 2012. link 7 Chandra S, Salgo IS, Sugeng L, Weinert L, Tsang W, Takeuchi M et al.. Characterization of degenerative mitral valve disease using morphologic analysis of real-time three-dimensional echocardiographic images: objective insight into complexity and planning of mitral valve repair. Circulation. Cardiovascular imaging 2011. link

Degenerative mitral valve prolapse