Annals of Oncology 13:647-649, 2002
© 2002 European Society for Medical Oncology
Editorial |
Detection of anthracycline-induced cardiotoxicity: is there light at the end of the tunnel?
Swiss Cardiovascular Center, Bern University Hospital, Bern, Switzerland
Cardiac contractile dysfunction is the most serious cardiotoxic effect of anthracycline therapy and a major limitation for the use of this effective antineoplastic treatment. The reported incidence of doxorubicin-induced cardiac dysfunction varies from 4%, at a cumulative dose of 500550 mg/m2, to >36% in patients receiving 600 mg/m2 or more [1]. Interestingly, there is a non-linear correlation between the incidence of contractile dysfunction and the cumulative dose of anthracyclines, and toxicity varies significantly among different anthracyclines.
The prognosis of anthracycline-induced cardiotoxicity is poor, and possibly even worse than those of ischemic or idiopathic dilated cardiomyopathies [2]. In untreated patients, mortality from anthracycline-induced cardiomyopathy is as high as 40% over 5 years. However, recent data suggest that medical therapy may improve the prognosis of patients dramatically. Furthermore, the onset of anthracycline-induced heart failure can occur years after
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