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Anthracyclines induce early changes in left ventricular systolic and diastolic function: A single centre study

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Boyd, A, Stoodley, P, Richards, D, Hui, R, Harnett, P, Vo, K, Marwick, T ORCID: 0000-0001-9065-0899 and Thomas, L 2017 , 'Anthracyclines induce early changes in left ventricular systolic and diastolic function: A single centre study' , PLoS ONE, vol. 12, no. 4 , pp. 1-15 , doi: 10.1371/journal.pone.0175544.

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Abstract

Aims: 2 dimensional (2D) strain analysis detects subclinical left ventricular (LV) systolic dysfunction. Our aim was to evaluate changes in LV systolic and diastolic function in breast cancer patients early after anthracycline chemotherapy, and to identify predisposing factors.Methods and Results: 140 patients were assessed by detailed echocardiography before and within seven days post treatment. LV ejection fraction (LVEF), global longitudinal strain (GLS), strain rate and radial and circumferential strain were assessed. Additionally, left atrial volumes and LV diastolic parameters were evaluated. LVEF although reduced after treatment, remained within the normal range (60±3% vs. 59±3%, p = 0.04). Triplane GLS was significantly reduced after treatment (-20.0±1.6% vs. -19.1±1.8%, p11% reduction in GLS compared to before therapy) occurred in 22% (29/135). Impaired diastolic function grade significantly increased from 46% to 57% (p11% reduction in GLS.Conclusion: Twenty two percent of patients had subclinical LV dysfunction by GLS, whilst none had cardiotoxicity defined by LVEF, demonstrating that GLS is more sensitive for detection of subclinical LV systolic dysfunction immediately after anthracycline therapy. Diastolic dysfunction increased, particularly in the group with reduced GLS, demonstrating the close pathophysiological relationship between systolic and diastolic function.

Item Type: Article
Authors/Creators:Boyd, A and Stoodley, P and Richards, D and Hui, R and Harnett, P and Vo, K and Marwick, T and Thomas, L
Journal or Publication Title: PLoS ONE
Publisher: Public Library of Science
ISSN: 1932-6203
DOI / ID Number: 10.1371/journal.pone.0175544
Copyright Information:

Copyright 2017 Boyd et al.Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/

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