Bennett, S, Tafuro, J, Brumpton, M, Bardolia, C, Heatlie, G, Duckett, S, Ridley, P, Nanjaiah, P and Kwok, CS (2022) Echocardiographic description and outcomes in a heterogeneous cohort of patients undergoing mitral valve surgery with and without mitral annular disjunction: a health service evaluation. Echo Research and Practice, 9 (1). 4 - ?. ISSN 2055-0464

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Abstract

BACKGROUND: Mitral annular disjunction (MAD) is a structural abnormality characterized by the distinct separation of the mitral valve annulus/left atrium wall and myocardium. Little is known about the significance of MAD in patients requiring mitral valve surgery. This evaluation evaluates the echocardiographic characteristics and patient outcomes for patients with and without MAD who require mitral valve surgery.

METHODS: All patients who underwent mitral valve surgery and who had a pre-surgical transthoracic echocardiogram between 2013 and 2020 were included. Patient demographics and clinical outcomes were collected on review of patient electronic records.

RESULTS: A total of 185 patients were included in the analysis of which 32.4% had MAD (average MAD length 8.4 mm). MAD was seen most commonly in patients with mitral valve prolapse and myxomatous mitral valves disease (90% and 60% respectively). In the patients with MAD prior to mitral valve surgery, only 3.9% had MAD post mitral valve surgery. There were no significant difference in the severity of post-operative mitral regurgitation, arrhythmic events or major adverse cardiovascular events in patients with and without MAD.

CONCLUSIONS: MAD is common in patients who undergo mitral valve surgery. Current surgical techniques are able to correct the MAD abnormality in the vast majority of patients. MAD is not associated with an increased risk of adverse clinical outcomes post mitral valve surgery.

Item Type: Article
Additional Information: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
Uncontrolled Keywords: Mitral valve surgery, Mitral annular disjunction, Clinical outcomes
Subjects: R Medicine > R Medicine (General)
R Medicine > RT Nursing
Divisions: Faculty of Medicine and Health Sciences > School of Nursing and Midwifery
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Depositing User: Symplectic
Date Deposited: 05 Sep 2022 15:04
Last Modified: 14 Oct 2022 09:16
URI: https://eprints.keele.ac.uk/id/eprint/11363

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