Early markers of cardiovascular injury in childhood leukaemia survivors treated with anthracycline chemotherapy

Autor: Treya M. Long, Channa E. Marsh, Lawrence G. Dembo, Philip Watson, Karen E. Wallman, Thomas S. Walwyn, Catherine S. Choong, Louise H. Naylor
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Cardio-Oncology, Vol 5, Iss 1, Pp 1-10 (2019)
Druh dokumentu: article
ISSN: 2057-3804
DOI: 10.1186/s40959-019-0047-4
Popis: Abstract Background Cardiovascular disease (CVD) is the leading non-malignant cause of death in childhood cancer survivors. Heightened risk of CVD is often attributable to treatment with anthracycline chemotherapy. Anthracycline-mediated cardiac injury may lie latent for years following cessation of treatment and is therefore often not detected until disease is advanced and aggressive therapy is required. Symptomatic CVD may be preceded by subclinical cardiac and vascular dysfunction. This study aimed to determine whether such dysfunction could be detected in healthy, anthracycline-treated survivors of childhood leukaemia. Methods Cardiac magnetic resonance imaging (cMRI) with late gadolinium enhancement and endothelial function were used to characterise pre-clinical stages of CVD. Twenty-two long-term (>5 years survival; age 21 ± 3 years) childhood leukaemia survivors were assessed. All survivors were asymptomatic and had normal resting echocardiography. To exclude potential confounding effects of radiotherapy, no survivors had received this treatment. Twenty-two similarly aged (25 ± 3 years) gender-matched controls were recruited for comparison. Results Left ventricular ejection fraction was lower in the survivors (55.0 ± 4.6%) compared to the controls (59.4 ± 6.2%; p = 0.010). Further, five survivors (23%) had clinically reduced (
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