Accuracy of mitral annular plane systolic excursion in diagnosing anthracycline-induced subclinical cardiotoxicity in patients with breast cancer - a retrospective cohort study.
Luís Fábio Barbosa Botelho, Marcelo Dantas Tavares de Melo, André Luiz Cerqueira de Almeida, Vera Maria Cury Salemi
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Abstract
Background: The mitral annular plane systolic excursion (MAPSE) is used to analyze the left ventricle longitudinal function. However, the accuracy of MAPSE in diagnosing oncological populations is unclear. In this study, we aimed to assess the accuracy of MAPSE in diagnosing subclinical cardiotoxicity in women with breast cancer undergoing anthracycline treatment.
Methods: This retrospective cohort study included echocardiographic assessments of patients with breast cancer who underwent anthracycline treatment as part of their therapeutic regimen. Assessments were performed before treatment, after administering the first dose of anthracycline, after completing anthracycline treatment, and 6 and 12 months after treatment. Left ventricular ejection fraction was calculated using the modified biplane Simpson method. The performances of MAPSE and global longitudinal strain (GLS) were analyzed using receiver operating characteristic (ROC) curves. Their accuracies were measured using the area under the ROC curves.
Results: Sixty-one patients were included in this study. Of them, 8.2% presented cardiotoxicity 6 months after treatment completion. Patients with cardiotoxicity had lower LVEF (47% vs. 63%; p < 0.001), MAPSE (10.23 mm vs. 12.25 mm; p = 0.012), and LV GLS (16.13% vs. 19.05%; p = 0.005) values than those without. A 12% reduction in the GLS exhibited sensitivity, specificity, and overall accuracy of 80%, 70%, and 78%, respectively. A relative reduction of 15% in MAPSE exhibited a sensitivity, specificity, and accuracy of 80%, 77%, and 81.2%, respectively. An absolute MAPSE reduction of 2 mm exhibited a sensitivity, specificity, and accuracy of 80%, 73.21%, and 81.2%, respectively. No differences were observed between the ROC curves.
Conclusion: MAPSE showed similar accuracy to GLS in diagnosing subclinical cardiotoxicity in women with breast cancer undergoing anthracycline treatment.
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