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  • Title: Patterns of treatment failure in pediatric and young adult patients with Hodgkin's disease: local disease control with combined-modality therapy.
    Author: Krasin MJ, Rai SN, Kun LE, Merchant TE, Metzger ML, Kaste SC, Howard SC, Hudson MM.
    Journal: J Clin Oncol; 2005 Nov 20; 23(33):8406-13. PubMed ID: 16293871.
    Abstract:
    PURPOSE: Refinement in managing pediatric Hodgkin's disease (HD) requires understanding of factors associated with local treatment failure. This study defines the cumulative incidence (CI) of local failure (LF) and prognostic factors for pediatric patients treated for HD with combined-modality therapy (CMT). PATIENTS AND METHODS: We enrolled 195 patients onto two prospective studies at St Jude Children's Research Hospital between 1990 and 2000. Patients received CMT with chemotherapy (vinblastine, doxorubicin, methotrexate, and prednisone [VAMP]; vinblastine, etoposide, prednisone, and doxorubicin; or VAMP/cyclophosphamide, vincristine, and procarbazine) and involved-field radiation therapy delivered to initial site(s) of disease on the basis of early response. Sites of disease involvement, treatment, and sites of failure were confirmed from the patients' medical record, imaging, and radiotherapy treatment records. We estimated the overall survival, event-free survival, and CI of LF. RESULTS: With a median follow-up of 7.6 years, the CI of LF was 10.9% and 11.6% at 5 and 10 years, respectively. Twenty-seven (14%) of 195 patients experienced recurrence of HD, and 22 (81%) of those experienced LF. Bulky mediastinal disease greater than one third transthoracic diameter predicted a higher incidence of LF, but did not predict failure in the mediastinum. Male sex, low initial hemoglobin, and bulky mediastinal disease were prognostic indicators of LF. Attenuation of radiation dose to 15 Gy based on response provides excellent infield control. CONCLUSION: CMT provides excellent local disease control in children and young adults with HD. LF remains a primary site of disease recurrence, with male sex, low initial hemoglobin, and bulky mediastinal disease predicting for LF.
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