Left Ventricular Function Assessed by Two-Dimensional Speckle Tracking Echocardiography in Long-Term Survivors of Hodgkin's Lymphoma Treated by Mediastinal Radiotherapy With or Without Anthracycline Therapy - 09/08/11

Résumé |
Anthracycline therapy is well known for its adverse cardiac effects. However, few studies have been performed of the long-term follow-up of myocardial function in adult survivors of Hodgkin's lymphoma receiving anthracycline. Two-dimensional speckle tracking echocardiography is an accurate angle-independent modality for the quantification of left ventricular (LV) function. The aim of the present study was to investigate the long-term effect of anthracycline on LV systolic function. Echocardiography was performed in 47 survivors of Hodgkin's lymphoma 22 ± 2 years after successful mediastinal radiotherapy with (n = 27) or without (n = 20) anthracycline (doxorubicin) treatment and in 20 healthy controls. LV function was assessed by the LV ejection fraction and global longitudinal and circumferential strain. Both patient groups had received a similar dosage of radiation, and doxorubicin was given at a total dose of 309 ± 92 mg. The global longitudinal strain was reduced in patients receiving anthracycline with mediastinal radiotherapy compared to the other group receiving mediastinal radiotherapy alone or combined radiotherapy and regimens without anthracyclines (−16.1 ± 1.9% vs −17.5 ± 1.7%, respectively, p <0.05). Both patient groups had reduced strain compared to the healthy controls (−20.4 ± 1.7%, both p <0.001). The circumferential strain was also reduced in the treatment groups (−18.3 ± 3.2% and −17.8 ± 3.6% vs −22.5 ± 2.1%, both p <0.001). The LV ejection fraction did not differ between the patient groups (55 ± 8% vs 56 ± 6%, p = 1.0) but was reduced compared to that of the controls (62 ± 5%, both p <0.05). In conclusion, myocardial function was reduced in the survivors of Hodgkin's lymphoma 2 decades after successful treatment consisting of mediastinal radiotherapy with or without chemotherapy. Patients receiving anthracycline therapy had additional negative long-tem effects on LV systolic function.
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| This work was supported by Madou Sin-Lau Hospital, the Presbyterian Church in Taiwan, the Inger and John Fredriksen Foundation, the South-Eastern Norway Regional Health Authority, and the Norwegian Research Council. |
Vol 107 - N° 3
P. 472-477 - février 2011 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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