• Int. J. Radiat. Oncol. Biol. Phys. · Sep 2012

    Intensity-modulated radiotherapy is associated with improved global quality of life among long-term survivors of head-and-neck cancer.

    • Allen M Chen, D Gregory Farwell, Quang Luu, Esther G Vazquez, Derick H Lau, and James A Purdy.
    • Department of Radiation Oncology, University of California Davis Cancer Center, Sacramento, CA 95817, USA. allen.chen@ucdmc.ucdavis.edu
    • Int. J. Radiat. Oncol. Biol. Phys. 2012 Sep 1; 84 (1): 170-5.

    PurposeTo compare the long-term quality of life among patients treated with and without intensity-modulated radiotherapy (IMRT) for head-and-neck cancer.Methods And MaterialsThe University of Washington Quality of Life instrument scores were reviewed for 155 patients previously treated with radiation therapy for locally advanced head-and-neck cancer. All patients were disease free and had at least 2 years of follow-up. Eighty-four patients (54%) were treated with IMRT. The remaining 71 patients (46%) were treated with three-dimensional conformal radiotherapy (3D CRT) by use of initial opposed lateral fields matched to a low anterior neck field.ResultsThe mean global quality of life scores were 67.5 and 80.1 for the IMRT patients at 1 and 2 years, respectively, compared with 55.4 and 57.0 for the 3D CRT patients, respectively (p < 0.001). At 1 year after the completion of radiation therapy, the proportion of patients who rated their global quality of life as "very good" or "outstanding" was 51% and 41% among patients treated by IMRT and 3DCRT, respectively (p = 0.11). At 2 years, the corresponding percentages increased to 73% and 49%, respectively (p < 0.001). On multivariate analysis accounting for sex, age, radiation intent (definitive vs. postoperative), radiation dose, T stage, primary site, use of concurrent chemotherapy, and neck dissection, the use of IMRT was the only variable independently associated with improved quality of life (p = 0.01).ConclusionThe early quality of life improvements associated with IMRT not only are maintained but apparently become more magnified over time. These data provide powerful evidence attesting to the long-term benefits of IMRT for head-and-neck cancer.Copyright © 2012 Elsevier Inc. All rights reserved.

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