Atrial-ventricular function in rheumatic mitral regurgitation using strain imaging.
left atrium
left ventricle
rheumatic mitral insufficiency
strain imaging
Journal
Echo research and practice
ISSN: 2055-0464
Titre abrégé: Echo Res Pract
Pays: England
ID NLM: 101664713
Informations de publication
Date de publication:
Jun 2020
Jun 2020
Historique:
received:
23
01
2020
accepted:
06
04
2020
entrez:
20
5
2020
pubmed:
20
5
2020
medline:
20
5
2020
Statut:
epublish
Résumé
Chronic mitral regurgitation (MR) historically has been shown to primarily affect left ventricular (LV) function. The impact of increased left atrial (LA) volume in MR on morbidity and mortality has been highlighted recently, yet the LA does not feature as prominently in the current guidelines as the LV. Thus, we aimed to study LA and LV function in chronic rheumatic MR using traditional volumetric parameters and strain imaging. Seventy-seven patients with isolated moderate or severe chronic rheumatic MR and 40 controls underwent echocardiographic examination. LV and LA function were assessed with conventional echocardiography and 2D strain imaging. LA stiffness index was greater in chronic rheumatic MR than controls (0.95 ± 1.89 vs 0.16 ± 0.13, In chronic rheumatic MR, there is LA dysfunction in the reservoir, conduit, and contractile phases. In this study, LA dysfunction with or without LV dysfunction was the predominant finding, and thus, LA dysfunction may be an earlier marker of decompensation in chronic rheumatic MR.
Sections du résumé
BACKGROUND
BACKGROUND
Chronic mitral regurgitation (MR) historically has been shown to primarily affect left ventricular (LV) function. The impact of increased left atrial (LA) volume in MR on morbidity and mortality has been highlighted recently, yet the LA does not feature as prominently in the current guidelines as the LV. Thus, we aimed to study LA and LV function in chronic rheumatic MR using traditional volumetric parameters and strain imaging.
METHODS
METHODS
Seventy-seven patients with isolated moderate or severe chronic rheumatic MR and 40 controls underwent echocardiographic examination. LV and LA function were assessed with conventional echocardiography and 2D strain imaging.
RESULTS
RESULTS
LA stiffness index was greater in chronic rheumatic MR than controls (0.95 ± 1.89 vs 0.16 ± 0.13,
CONCLUSIONS
CONCLUSIONS
In chronic rheumatic MR, there is LA dysfunction in the reservoir, conduit, and contractile phases. In this study, LA dysfunction with or without LV dysfunction was the predominant finding, and thus, LA dysfunction may be an earlier marker of decompensation in chronic rheumatic MR.
Identifiants
pubmed: 32426149
doi: 10.1530/ERP-19-0034
pii: 10.1530/ERP-19-0034
pmc: PMC7219135
doi:
Types de publication
Journal Article
Langues
eng
Pagination
9-17Informations de copyright
© 2020 The authors.
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