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Author Notes:
Email Address: Dr Susmita Parashar : sumita.parashar@emory.edu
OYH, JRB, CRF and SP were critically involved in the study design, collection and analysis as well as the preparation and editing of this manuscript.
TD and KAE performed all statistical analyses in this study, provided substantial insight into data analysis and helped with manuscript preparation and editing.
Competing interests None declared.
Subjects:
Research Funding:
OYH is supported by the National Institutes of Health Ruth L. Kirschstein National Research Service Award training grant (5T32HL007745)
Pattern of cardiac surveillance among patients with lymphoma receiving anthracycline-based chemotherapy.
Abstract:
OBJECTIVE: Anthracyclines are potent antineoplastic agents in the treatment of lymphoid malignancies, but their therapeutic benefit is limited by cardiotoxicity. The American Heart Association (AHA) recommends routine surveillance, early diagnosis and treatment of anthracycline-based chemotherapy (AC) induced cardiomyopathy (AC-CMP). We aimed to assess the prevalence of AC-CMP in patients with lymphoma, surveillance patterns of left ventricular ejection fraction (LVEF) in those receiving AC and management of patients with AC-CMP at an academic medical centre prior to the development of a comprehensive cardio-oncology programme. METHODS: We performed a retrospective cohort study examining 218 patients with aggressive B cell non-Hodgkin's lymphomas (B-NHL) who received AC 1992-2012 and had serial follow-up. AC-CMP was defined as LVEF decrease ≥10% with final LVEF≤50% or LVEF reduction ≥15% regardless of final LVEF. RESULTS: Of 218 patients treated with AC, 73 (34%) had LVEF assessment both prior to and after receiving AC. Of these 73 patients, 24 developed AC-CMP and had higher cumulative all-cause mortality than those without AC-CMP (HR 2.35, p=0.03). Coronary artery disease (CAD) was an independent predictor of AC-CMP (p=0.048). Mean post-AC LVEF was lower in patients with CAD compared with those without CAD when their baseline LVEF was 45% (p=0.0009) or 55% (p=0.001) but was similar at 65% (p=0.33). Less than half of patients with AC-CMP received recommended heart failure medication therapy. CONCLUSIONS: Historically, one-third of patients with B-NHL treated with AC underwent surveillance according to AHA guidelines. There is substantial opportunity for collaboration between oncologists and cardiologists to improve the care of patients with lymphoma receiving AC.
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© 2015 by the BMJ Publishing Group Ltd.
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